Stationary Measurement Solutions

Committing to the futureII/2008Stationary Solutions for Air Conditioning and Process

3Systematic adjustmentRegular readjustment – even of long-termstable sensor systems – is of vitalimportance for process precision and costreduction. If neglected, you run the risk ofhaving to redefine a tighter referencehumidity interval after only one or twoyears with the consequences for operatingcosts as described in “Precision cutscosts”.It is crucial for those responsible forsystems, such as the Facility Manager ormaintenance department to have acomplete system, suited to the humiditytransmitter, which facilitates easyrecalibration and adjustment.At Testo, the system consists of thefollowing components:1. Humidity transmitter2. Control and adjustment salt solutions(can be used up to 80 times)3. Adjustment on site using portableinstruments testo 400/6504. Huminator humidity generator (low-costpresetting of required value inlaboratory)It is possible to carry out readjustment onsite using adjustment saline solutions,which are reusable, while the huminator isused for readjustment in laboratories orfactories.Readjustment with adjustment saltsolutionsAdjustment on site: fast and accuratevia the external interfacePrecision cuts costsThe more accurate the humiditymeasurement, the lower the cost ofrunning the air conditioning system.According to international standards(ASHRAE Fundamentals, DIN 1946 etc.) airconditioning systems should have airhumidity levels of between 30 and 65%RH. Higher humidity levels must bebrought into the required range bydehumidification while lower levels must besubjected to humidification.If a transmitter with an overallmeasurement error of ±2 %RH(measurement uncertainty including longtermerror) is used to measure humidity,running costs will be noticeably lower thanif a typical ambient air transmitter with a ±6%RH overall measurement error(uncertainty including long-term error) isused. The diagram shows that the ±6%RH transmitter already has to activatehumidification under 36 %RH in order toguarantee a humidity level within thestandard comfort level range. Likewise,dehumidification must be activated from 59%RH up. This results in operating costs forthe year being higher by approximately 20to 40% when compared to Testo’s highlyaccurate humidity transmitter (Testohygrotest).This comparison looks even better for highstandard transmitters if the target %RHrange is more tightly defined; cleanroomapplications, for example.Regulation jobHumidificationNo change in ambient air conditions”Comfort level range“ to DIN 1946 and ASHRAE FundamentalsDehumidificationSpecified operatingcosts (EUR/%RH)±2%±6%±6%±2%If measuring with ±6 %RHoverall measurement errorIf measuring with±2 %RH overallmeasurement errorFrequency(%RH/Year)Operating costs(EUR/Year)Operating costs at ±6 %RHoverall measurement errorOperating costs at ±2 %RHoverall measurement errorOperating costs differential30 36 59 653263%RH

4Overview of contents by applicationStationary measurement technology from Testo is used in a broad spectrum of applications. The most importantapplications and the instruments suited to them are shown on this page. Also consult the catalogue if you do not findyour application in the overview. On the flap behind the title page you will find the overview of contents sorted byproduct. Or just ask your Testo distribution partner. We are happy to help. In addition to stationary measurementtechnology, Testo also offers portable measurement technology and data loggers. You will find the cross-references tothe corresponding catalogues on the back page.Drying processesHumidity transmitters: from page 6Process displays/relay outputs: from page 84%RH°CMoist materialDried materialTimeClimate applicationsHumidity transmitters: from page 6Differential pressure transmitters: from page 50%RH/TInlet air%RH/TMAir conditionedroom%RH/TTTRecycledairExhaust air%RH/T(if convection air)

5Stationary temperature probes: from page 62Process displays/relay outputs: from page 84Stationary temperaturemeasurementExhaust gasOutside temperatureReturnFlowTTTBurnerTBoilerHumidity transmitters: from page 6Differential pressure transmitters: from page 50CleanroomPCriticalcleanroom100,040 PaCleanroom100,020 PaCorridor100,000 Pa∆p = 20 PaTrace humidity measurement: from page 94Compressed air counter testo 6440: from page 104Compressed air,dry air and dry gas°CtpdDryerCompressor

6Humidity sensor with an information headstartLong-term stability and selfdiagnosisin the transmitterstesto 6651 and testo 6681guarantee highest systemavailability. Our objective was tocreate security for the user. Thiscan avoid immense downtimecosts, especially in sensitiveapplications. The self-diagnosisof the sensors in the new,intelligent humidity measurementtransmitters detects anomaliesearly – before damage can occur.And our tried and tested(patented) humidity sensor hasproven its stability not only inthousands of applicationsworldwide. The accuracy of ±1%RH was confirmed by allrenowned calibration laboratoriesin inter-laboratory tests.Dr. Hans-Ullrich Demisch,Head of Research at testo AG

7Humidity measurement – even under extreme conditionsHigh humidity measurement - testo 6614Humidity measurement in the high humidity range is among the mostdifficult mesasurement tasks. Unstable measurement values, delayedsignal reaction, and sometimes also sensor corrosion are no rarity, if aspecial solution is not usedFor these applications, Testo has developed a special, heatedhumidity sensor with the testo 6614. A microclimate which is 5 Kelvinabove the process conditions is thus created inside the filter. Theconsiderably lower humidity in the microclimate greatly improves thesensor reaction as well as noticeably reducing the likelihood ofcorrosion.Parallel to the heated humidity sensor, the testo 6614 also has anadditional temperature probe. This measures the actual processtemperature; on this basis the correct process humidity is calculatedin the microprocessor of the measurement transmitter, and displayed.Trace humidity measurement - testo 6615Humidity measurement in the lowest humidity range is also verydemanding. If “normal” polymer humidity sensors are used here, theerror, measured in dewpoint degrees, soon shows high values.For the demanding measurement of trace humidity, Testo hasdeveloped the testo 6615, which has an integrated trace humidityself-adjustment. The smallest discrepencies are corrected cyclicallyhere, up to trace humidities of -60° dewpoint!Humidity measurement in corrosive media – testo 6617Humidity measurement in corrosive media is often accompanied by ashort useful life of the sensor. For this problem too, Testo hasdeveloped a ground-breaking innovation: cover electrode monitoring.Thanks to this measure, the first signs of corrosion are detected andreported early. This early warning allows the measurement probe tobe exchanged before the measurement is false or even interrupted.This guarantees optimum system availability!

8Overview of humidity measurement transmitters testo 6621, testo 6651 and testo 6681Pricetesto 6681testo 6651testo 6621ModelApplicationstesto 6621The air conditioning humiditytransmitter: for applications inrooms or in air conditioningductstesto 6651Climate technology and industry:critical climate, cleanroomstesto 6681PerformanceIndustry:critical climate, cleanrooms, drying processes, highhumidity, trace humidity, humidity in H 2O 2environmentetc.Measuring range Humidity 0 to 100 %RH0 to 100 %RH0 to 100 %RH(no high humidity processes) (no high humidity processes)Accuracy at+25 °C (+77 °F)Measurement parametersTemperature(dependent onprobe)Humidity**Temperaturetesto 6621 testo 6651testo 66810 to 100 %RH (not for high humidityprocesses), duct: -20 to +70 °C (-4to +158 °F)±2.5 %RH (0 to 90 %RH)±4 %RH (90 to 100 %RH)±0.5 °C / 0.9 °F°C, °F, %RH-20 to +120 °C (-4 to 248 °F)±1,7 %RH (0to90%RH)±1,9 %RH (90to100 %RH)Pt1000 Class A±0,2 °C / 0,38 °F *°C/°F, %rF/%RH, °C td/°F td-40 to +180 °C (-40 to 356 °F)up to ±1,0 %RH (0to90 %RH)±1,4 %RH (90to100 %RH), dependent on probePt1000 1/3 Class B±0,15 °C / 0,27 °F *°C/°F, %rF, %RH, °C td,°F td, g/m 3 , gr/ft 3 , g/kg,gr/lb, enthalpy, °Ctw, °Ftw, inch H 2O, ppm(vol),% Volfor H 2O 2-applications: °Ctm/°FtmSignal outputs 4 to 20 mA, 2-wire (duct version only) 4 to 20 mA, 2-wire4 to 20 mA, 2-wire (not for testo 6614/6615)0 to 1 Volt, 4-wire0/4 to 20 mA, 4-wire0/4 to 20 mA, 4-wire0 to 5/10 Volt, 4-wire0 to 1/5/10 Volt, 4-wire0 to 1/5/10 Volt, 4-wireMounting variants Wall or duct installationWall probe testo 6601Wall probe testo 6611Duct probe testo 6602/6603 Duct probe testo 6612Cable probe testo 6604/6605 Cable probe testo 6613/6614/6615/6617max. cable lengthHousing5 mABS, plastic, IP6510 mMetal, IP65Interfaces digital Testo (for 2PA software or digital Testo (for P2A software or digital Testo (cf. testo 6651)testo 400/650)testo 400/650)Profibus (optional intermediary layer)Special features–ABS and nickel-plated ABSExternal interface, adjustability4 relays (optional)early warning system (via display orrelay collective alarm)Special probe versions for• Temperature ranges up to +180 °C (+324 °F)• Trace humidity testo 6615• High humidity testo 6614• Self-diagnosis testo 66174 relays, optionalearly warning system (via display, relaycollective alarm or Profibus)*Other accuracies apply for the wall probe with 70 mm length in combination with a current output (P07):Operation: with 2 channels at 12 mA, without display illumination, relay off, additional measurement inaccuracy to above data at +25 °C (+77 °F), humidity ±2.5 %RH,temperature ±1 °C (1.8 °F)**For more deatailed explanation on the determination of the measurement uncertainty according to GUM, see p. 23

Notes9

10The air conditioning transmitter for applications in rooms or air ductsAdjustable – evenin this instrumentclass ...Matthias Häffner,Market ManagerTesto GermanyWall version with display... cannot be taken forgranted! The fact thatthis high accuracy isalso paired with timeoptimizedhandling –thanks to an externalinterface – has alreadydelighted manycustomers!Fast and accurate adjustment on sitewith the portable instruments testo400/testo650Duct version with displayP2AConvenient operation via the testo P2Asoftware (parameterization, adjustment,anaylsis)

11testo 6621 – With external interface for adjustment and initial operationOrdering codes0555 6621 AxxA01A02BxxWall versionDuct versionCxxFxxGxxMxxKxxM01M02M03M04M05Stainless steel sintered filterMetal wire protection capTeflon sintered filterMetal protection cap, openPlastic cap ABS (open)only for A02B01B02B03B04C00C014 to 20 mA (2 wire, 24 VDC)*0 to 1 V (4 wire, 24 VAC/DC)0 to 5 V (4 wire, 24 VAC/DC)0 to 10 V (4 wire, 24 VAC/DC)Without displayWith displayTwo analog outputseachK01K02K03K04K05K06K07IM German-EnglishIM French-EnglishIM Spanish-EnglishIM Italian-EnglishIM Dutch-EnglishIM Japanese-EnglishIM Chinese-EnglishLanguage versionsof InstructionManualsF01G02G03Relative humidity (%RH)Temperature (°C)Temperature (°F)Ordering examples:1. Duct version with 0 to 10 V outputs, with display, %RH, °C, open plastic cap,German-English Instruction Manual 0555 6621 / A02 / B04 / C01 / F01 / G02 / M05 / K012. Wall version with 0 to 1 V outputs, without display, %RH, °F, Italian-EnglishInstruction Manual 0555 6621 / A01 / B02 / C00 / F01 / G03 / K04*not available for wall version A01Overview of Product Linetesto 6621 A01 / ... / C01 / ...Wall version with displaytesto 6621 A02 / ... / C01 / ...Duct version with displaytesto 6621 A01 / ... / C00 / ...Wall version without displaytesto 6621 A02 / ... / C00 / ...Duct version without display*not Technical available for data wall version A01TypeSensorOutput parametersMeasurement ranges (rel. humidity/temperature)Measurement medium, Pressure rangeMeasurement inaccuracy/HumidityMeasurement inaccuracy/TemperatureReplaceability of humidity sensorAnalog outputs (two channels each)Display, resolution and measurement ratePower supplytesto 6621 – A01 (wall version)testo 6621 – A02 (duct version)Testo humidity sensor and NTC temperature sensorRelative humidity %RH as well as temperature °C or °F (two separate analog outputs)0 to 100 %RH (not for high humidity processes)0 to +60 °C (32 to +140 °F)Air in air conditioning units or rooms, max. 1 bar positive pressure±2.5 %RH (0 to 90 %RH), ±4 %RH (90 to 100 %RH)Temperature coefficient: 0.05% / K (difference of 25 °C/77 °F)±0.5 °C / 0.9 °FBy Testo Service Department0 to 100 %RH (not for high humidity processes)-20 to +70 °C (-4 to +158 °F)±2.5 %RH (0 to 90 %RH), ±4 %RH (90 to 100 %RH)Temperature coefficient: 0.05% / K (difference of 25 °C/77 °F)±0.5 °C / 0.9 °FCan be replaced by customer (see below for sparesensor), 2-point adjustment subsequently requiredCurrent output: 4 to 20 mA ±0.05 mA as 2-wire version (not for wall version) or voltage output: 0 to 1 VDC ±2.5 mV; 0to 5 VDC ±12.5 mV; 0 to 10 V ±25 mV as 4-wire version (please order accordingly, no on-site adaptation)2 line LCD (optional) humidity resolution: 0.1 %RH, temperature resolution: 0.1 °C / 0.1 °F, measurement rate 1/sAt voltage output: 20 to 30 VDC / VACAt voltage output: 20 to 30 VDC / VACHousing material + DimensionsTemperature application range (housing)ABS, 81 x 81 x 26 mm-20 to +70 °C (-4 to +158 °F)With display: 0 to +50 °C (32 to +122 °F)ABS, 81 x 81 x 42 mm, refer to diagram for probe-20 to +70 °C (-4 to +158 °F)With display: 0 to +50 °C (32 to +122 °F)Storage temperature -40 to +80 °C (-40 to +176 °F) -40 to +80 °C (-40 to +176 °F)Cable screw connectionsNone (cable is through back wall opening or break-outopening on underside1 x M16 x 1.5Weight, IP protectionEMC80 g, IP 30In accordance with EU guideline 89/336/EEC160 g, IP 65In accordance with EU guideline 89/336/EEC

12testo 6621 – With external interface for adjustment and initial operationOn-site adjustment: Fast and accurate using an external interfacetesto 6621Adjustmentadapter0554 6022Reference instrumenttesto 400testo 650Not only highly interesting to the company technician or facilitymanager, but also increasingly interesting to the plant engineerresponsible: What are the follow-on costs of using this transmitter?The good news from Testo: Thanks to the external interface, testo650 or testo 400 reference instruments can be connected to thetransmitter using the 0554 6022 adjustment adapter; all withoutopening the transmitter. A few steps in the testo 400 or testo 650menu is all it takes to have the testo 6621 transmitter adjusted.Result: time saved and reduced operating costs.Reference probe0636 9741Filter selection (only for duct version A02)M01M02M03Flow< 7 m/swithoutParticle loadfinecoarseM04/05 M03 M02Optimum commissioning and adjustmentThanks to the P2A software, the testo 6621 can be• freely scaled• tested (analog outputs)• adjusted (1-, 2-point adjustment as well as analog channeladjustments)Histories show which parameter changes and adjustments werecarried out with the respective PC.> 7 m/sM01 M01* M02*M04M05For filter selection cf. p.33* plus condensation protection 0554 0166Electric connection Wall4 to 20 mADuctVoltage output(4-wire connection)WallVoltage output(4-wire connection)Duct4 to 20 mAWallVoltage output(3-wire connection)DuctVoltage output(3-wire connection)- T + -rH+ - U + - T + -rH+ + U - +rH- + T -+rH- + T -6 5 4 3 2 16 5 4 3 1 2 3 4 5 63 4 5 6- T + -rH+ - U + + U - +rH- + T -6 5 4 3 2 11 2 3 4 5 6+ U -+U-testo 6621 – A01 (wall version)testo 6621 – A02 (duct version)testo 6621 – A01 (wall version)max. 81max. 26.2testo 6621 – A02 (duct version)228.2 + A max. depthA 18741.2max. 81Ø12CodeM01M02M03M04M05A (mm)3340,3353525

Notes13

14Humidity transmitters testo 6651 and 6681With the testo 6651 and testo6681, Testo presents worldinnovations which willrevolutionize many aspects ofstationary humidity measurement.!In particular, solutions for safeand service-friendly use areoffered, meaning high reliabilityand operational security forindustry:– exchangeable probes– early warning reports(preventive maintenance)– variable possibilites foradjustmentIn addition, they also continue touse already existing technologysuch as the external interface forcommunication, for example forthe parameterization andadjustment software P2A fromTesto.The overview on the next pageshows a comparison of the twomodel series, followed by adetailed description of theindividual models.Self-monitoring assuressystem availabilityDigital probesThe two new humiditytransmitters are designed for themonitoring of critical climate inprocess engineering and also incompressed air technology. Thedemanding measurement isrealized with the furtherdeveloped Testo humidity sensor,with its well-known and highlyvaluedlong-term stability.Unmatched state-of-the-arttechnology in humiditymeasurement, with solutions forhighest accuracy as well as forspecial applications (highhumidity, humidity in H 2O 2, tracehumidity etc.) is provided. Bothinstrument series present manynew features, among them worldinnovations such as aprofessional bus interface in thehumidity measurementtransmitter testo 6681.External test points foranalog signalsProfibus DP, now also forhumidity transmitters

15Common features + benefits testo 6651 and testo 6681Display and operating menu19.357.8°C%RHPROBE CONNECTIONThe optional display has an extremely convenientoperating menu. With the help of four operating buttons,almost all operations can be carried out which can beconducted using the P2A software. Commissioning,adjustment and analysis are thus possible completelywithout a PC - simply on site!The display not only presents the measurement valuesand relay status clearly, but also guides the user safelythrough the operating menu thanks to a clear-text line. Apassword protects against unauthorized operation. Acover for the buttons can also be installed.And last but not least: The clear-text can be selected insix languages - optimum for your systems at home andabroad.Digital probes;: exchangeable and traceableThe humidity probe in the models testo 6651 and 6681can be easily exchanged by hand. A readjustment withthe measurement transmitter itself is not necessary, sincethe probe series testo 6600 used in the humiditymeasurement transmitter testo 6651 not only has a purelydigital interface to the measurement transmitter, it is alsocompletely calibrated and adjusted.Unplug probe 1, plug in probe 2 - continue measuring!At the same time, Testo fulfils the highest demands, forexample those of the pharmaceutical industry. Eachprobe has its own serial number, a store for theadjustments carried out with it, and its own operationalhour counter. This visualizes (via the measurementtransmitter’s operating menu or the P2A software) howlong the probe has already been in use, and whichsettings have been carried out on it (see also P2Asoftware).Calibration and adjustmentvia operating menu, adjstment buttons and p2A software,testo 6651/6681 offer• 1-point adjustment• 2-point adjustment• adjustment of analog outputsThanks to the analog output adjustments, it is possible toeliminate measurement errors which can occur in thetransmitter due to the digital-analog conversion – this too,is a world innovation in the field of humidity.

16Common features + benefits testo 6651 and testo 6681Direct on-site adjustment with the testo 400A regular adjustment is indispensible for all demandinghumidity measurements - although the highly stable Testosensors mean that a correction is often not necesaryeven after three or four years.The important thing for the user is that the process (e.g.an air conditioning system) is not interrupted by theadjustment procedure. And transporting a laptop/PC tothe measurement site is not always feasible.For this reason, Testo has equipped the testo 6651 andtesto 6681 with an easily accessible interface. Using theadapter 0554 6022, the reference measuring instrumenttesto 400 or 650 (with a precision humidity probe) can bedirectly connected to the transmitter 6651 and testo6681. In the display of the hand instrument, the humidityand temperature values of the two instruments are shownopposite each other. If the discrepancies are too high, afew touches of a button are sufficient to adjust the testo6651 and testo 6681 (1-point adjustment). After only afew moments, you are ready to carry on to the nextmeasurement site.Measurement transmitter and probetesto 400testo 650Adjustment adapter1-point adjustment on site with the portable instrument testo 400 or testo650 with precision humidity probe and adjustment adapterAdjustment via operating menu or P2A softwareIn addition to the numerous possibilities for calibrating theprobe together with the transmitter locally, (cf. P2Asoftware), it is possible, thanks to the digital probe seriestesto 6600 and testo 6610, to leave the transmitter onsite and to exchange only the probe, and calibrate it in alaboratory.Companies with internal calibration laboratories install atleast one testo 6651/6681 transmitter in the laboratoryand use it as an adjustment basis for various probes.After adjustment, the probes - or others of the samedesign - are reconnected at the original measurementsite. Thanks to the probe serial number, it is alwayspossible to trace (for example with the P2A software),which probe was connected when to a measurementtransmitter, and how it was adjusted (1 or 2-pointadjustment).GHumidity generatorUSB to Mini DINcableAdjustment via operating menu or testo P2A softwareorAdjustmentbuttons

17Common features + benefits testo 6651 and testo 6681World innovation: duct version with exchangeable probeFor many users, the duct version, in which the probe is classically attached to therear wall of the measurement transmitter, is the best solution. The measurementtransmitter must not be mounted separately, but is held in position by the probe(1).With the testo 6602/6603 (for testo 6651) as well as the testo 6612 (for testo6681), Testo has succeeded in making this version available for the first time onthe world market for exchangeable digital probes. The intelligent probe-cableconstruction means that the measurement transmitter is simply pushed over theend of the probe (2), and the digital probe plug is then plugged in (3).R1%RHR2Integrated relays (optional)Thanks to the four power relays (up to 256 VAC, 3A), assemblies of the airconditioning system can be directly switched without the “detour” via a control. Atthe same time, the relays can be used for local alarming or for reporting limit valueviolations to a superordinate system.°CAnd not least, the person responsible for the system can be called to themeasurement site in time with the help of a “collective alarm” (cf. self-monitoring”).R3R4Designed for practiceThe emphasis in the construction of testo 6651 and testo 6681 was practicability.Here a few examples:– Adjustment buttons, test points (see below) and interface should be easilyaccessible for the specialist, but not for others. This was the reason fordesigning the “service cover” which frames the display.– Test points: do the analog outputs need to be tested when commissioning theinstrument? Are analog adjustments to be made at a later date? Instead ofdisconnecting already existing wiring (and opening the housing), test pointswere positioned under the service cover, which allow easy access to the analogsignals.– Wiring compartment: Which practician is not often frustrated by the minimalspace afforded by measurement transmitter manufacturers for wiring? For thisreason, Testo has designed a separate wiring compartment with plenty ofspace. The practician will appreciate it.Self-monitoringThe testo 6651/6681 constantly monitors itself: its voltage supply, when 100%RH is reached, any drift in 2-point adjustment etc.With the testo 6617 probe, the testo 6681 also additionally offers self-monitoringof the sensor.The reports resulting from this are not only stored with an operational hoursstamp - for later analysis - and shown in the display!With the help of the optional relays, these reports can also be given out as a“collective alarm”. The person responsible - working as a team with the testo6651/6681 - can thus always ensure optimum system availability!

18Humidity transmitter testo 6651Practice requiresdigital probes ...Werner Gäng,Head of SalesEurope... and that’swhy mycustomers fromMalta toHammerfest arehappy to hearthat they arenow availableeven in the“middle class”.Transmitter testo 6651without displayTheir maininterest is in system availability(fast probe exchange), but also incalibration withoutdismantling/dispatch of thetransmtter.Transmitter testo 6651with display

19testo 6651 – the humidity measurement transmitter for critical climate applicationsNot all measurement problems in air conditioning technology can besolved with “simple” measurement transmitters like the testo 6621.Special challenges are mastered by the testo 6651.– The probe should be digital and exchangeable. In the testo 6651,even the duct version fulfils this – a world innovation!– Higher accuracies are required, especially with regard to use overyears– The humidity parameter dewpoint (°Ctd/°Ftd) is to be used, forexample in processes in which it is of highest priority that thetemperature does not fall below the dewpoint– Assemblies are to be controlled from the instrument (optionalintegrated relays)– Commisssioning, adjustment and analysis are to be possibledirectly in the instrument without software (optionaldisplay/operating menu)– Changes of parameter, adjustments and reports are to be stored inthe instrument – with operating hour stampThis and other features make the testo 6651 the first choice fordemanding climate technology, as well as in pasta drying systems,maturation chambers for charcuterie and similar applications.Overview of the product range: measurement transmitters testo 6651 and digital probes 6600Whether the decision is made in favour of a testo 6651 or a testo 6681 depends above all on the choice of probe, in addition to the question ofthe housing material (6681: metal housing), and the humidity parameters or signals to be used (e.g. professional bus only in testo 6681). Ingeneral, the measuring range 0 to 100 %RH applies, although for continuous high humidity the testo 6614 is recommended.Wall Duct CableStandard±1 %RH ±1,7 %RH ±1 %RH ±1,7 %RH ±1 %RH ±1,7 %RH-20 to +70 °C-4 to +158 °F-20 to +70 °C-4 to +158 °F-20 to +120 °C-4 to +248 °F-40 to +180 °C-40 to +356 °F-20 to +70 °C-4 to +158 °F-20 to +120 °C-4 to +248 °FForhighhumidity–> heatedFortracehumidity–> withautoadjustSecurity–> autodiagnosisat thesensor6601 6602 6603 6604 6605-60 to +30°C tpdProbes for testo 6651 (testo 6600), see page 22±1,2 %RH-20 to +70 °C-4 to +158 °F-40 to +150 °C-40 to +356 °F-40 to +180 °C-40 to +356 °F-40 to +180 °C-40 to +356 °F6611 66126613 6614 6615 6617Probes for testo 6681 (testo 6610)

20Order codes measurement transmitter testo 6651The humidity measurement transmitter for critical climate (testo 6651) is generally customer-specifically configured, adjusted and delivered.Please select the measurement transmitter you require step by step.0555 6651 A01 BxxCxx Dxx Exx Fxx Gxx Hxx Ixx Jxx KxxB01B02B03B04B05B06C00C02C03C04C05C06C074 to 20 mA (2-wire, 24 VDC), not possible with relays0 to 1 V (4-wire, 24 VAC/DC)0 to 5 V (4-wire, 24 VAC/DC)0 to 10 V (4-wire, 24 VAC/DC)0 to 20 mA (4-wire, 24 VAC/DC)4 to 20 mA (4-wire, 24 VAC/DC)Without displayWith display / EnglishWith display / GermanWith display / FrenchWith display / SpanishWith display / ItalianWith display / JapaneseClear-text language.Operating menuavailable only withdisplay.Order example measurement transmitter testo 6651Housing with display with menu in English4 to 20 mA (2-wire)Cable input M16/M20Factory setting channel 1:%RH with scaling min 0 %, max 100 %*Factory setting channel 2:°C with scaling min -10 °C/-14 °F,max +70 °C/+158 °F*without relayInstruction manual in German and EnglishD01D02D03Cable input M16 (relay: M20)Cable input NPT ½”Cable contact via via M plug connectionfor signal and supply (for optional relays: M20 cableinput) 0555 6651 A01 / B01 / C03 / D01 / F01 /G02 / -10 / +70 / H00 / K01F01F02F03F04F05%RH / min / max°C / min / max°F / min / max°C td/ min / max°F td/ min / maxChannel 1** The standard scaling is delivered, as long as “min” and “max” arenot specified.G01G02G03G04G05%RH / min / max°C / min / max°F / min / max°C td/ min / max°F td/ min / maxChannel 2*H00H01H02Without relay4 relay outputs, limit value monitoring4 relay outputs, limit values channel 1 + collective alarmnot with code “B01”Relay parameterization when commissioningvia operating menu (display) or P2A softwareK01K02K03K04K05K06K07IM German-EnglishIM French-EnglishIM Spanish-EnglishIM Italian-EnglishIM Dutch-EnglishIM Japanese-EnglishIM Chinese-English

21Technical data measurement transmitter 6651GENERALHousingDimensionsWeightDisplayResolution displaySENSOR (more data see probes)HumidityANALOG OUTPUT (uniform for all channels, specify when ordering)FURTHER OUTPUTSPlastic122 x 162 x 77 mm (without probe)0.62 kg (without probe)2-line LCD with clear-text line (optional) and relay status display. Four operating buttons for operating menu.0.1 %RH or 0.1 °C / °F / °C td / °Ftd / °Ctw / °Ftw or 1g / kg / g/m 3 / ppmCable screw fitting M 16 x 1.5 (2x) with inner diameter 4-8 mm for signal/supply cable (for option D01)M 20 x 1.5 (2x) with inner diameter 6-12 mm for relay cable (for options D01 or D03)Probe connectionDigital plug-in connectionVoltage supply 2-wire: 24 VDC ±10 %4-wire: 20 to 30 VAC/DC, 300 mA max. current consumptionProtection class IP 65EMC2004/108/EGOperating temperature housing -40 to +70 °C/-40 to +158°F, with display 0 to +50 °C/32 to +122 °F, optimum at +15 to 35 °C/+59 to 95 °FStorage temperature -40 to +80 °C/-40 to +176 °FMeasurement parameters Temperature in °C / °FRelative humidity %rF / %RH / %HRDewpoint in °C td/ °F tdMeasurement mediumAir, nitrogen, more on request: applicationsupport@testo.deReproduceabilityMeasurement inaccuracy %RHMeasuring range Humidity(Standard scaling) TemperatureDewpointReaction time without protective filterTesto humid. sensor, cap.better than ±0.5 %RHcf. probe dataProbes 6601 6602 6603 6604 66050 to 100 %RH-20 to +70 °C/-4 to +158 °F -20 to +70 °C/-4 to +158 °F -30 to +120 °C/-22 to +248 °F -20 to +70 °C/-4 to +158 °F -30 to +120 °C/-22 to +248 °F-60 to +100 °C tdor -76 to +212 °F tdt 90 max. 10 sQuantity2 channels (type analog signal uniform for both channels, specify when ordering)Current/accuracy4 to 20 mA ±0.03 mA (2-wire)0 to 20 mA ±0.03 mA (4-wire)4 to 20 mA ±0.03 mA (4-wire) for heated sensor technologyVoltage/accuracy0 to 1 V ±1.5 mV (4-wire)0 to 5 V ±7.5 mV (4-wire)0 to 10 V ±15 mV (4-wire)Galvanic isolationGalvanic isolation of the output channels (2-wire and 4-wire), isolation of supply from outputs (4-wire)Resolution12 bitMaximum load 2-wire 12 VDC: 100 Ohm24 VDC: 500 Ohm30 VDC: 625 Ohm4-wire 500 OhmRelays (optional) 4 relays (free allocation to measurement channels or as collective alarm with operating menu/P2A software), up to 250 VAC / 3 A,(NC/C/NO)Digital output Mini DIN for Testo P2A parameterization software and Testo portable instruments 400/650

22Ordering options probe range testo 66000555 6600 Lxx MxxNxxPxxL01L02L03L04L05Probe 6601 (wall version)Probe 6602 (duct version -20to70 °C)Probe 6603 (duct version -30to120 °C)Probe 6604 (cable version -20to70 °C)Probe 6605 (cable version -30to120 °C)Order example probeDuct probe ( (-20 to +70 °C/-4 to 158 °F are sufficient)Sintered stainless steel filterProbe length 280 mmM01M02M03M04M05Sintered stainless steel filterWire mesh protective capSintered Teflon filterMetal protective cap, openPlastic cap ABS, openfor filter selectionsee p. 35 0555 6600 L02 / M01 / N23 / P28N00N01N02N05N23Without cable (for probe 6601)Cable length 1 m (for probes 6604/6605)Cable length 2 m (for probes 6604/6605)Cable length 5 m (for probe 6605 only)Cable length, specially for duct versions (for probes 6602/6603)P07P14P20P28P50Probe length 70 mmProbe length 140 mmProbe length 200 mmProbe length 280 mmProbe length 500 mmL01 L02 L03 L04 L05X – – – –– – – X –X – – – X– X X X –– – – – XOrdering procedure:The measurement transmitter and the probes can be ordered independently of each other, (thanks to the digital probe interface), cf orderexamples above.If the measurement transmitter and the probe order are to be assembled together, their order codes are combined in the distribution set 05636651

23Technical data probe series testo 6600Model testo 6601 testo 6602 testo 6603 testo 6604 testo 6605TypeApplicationMeasurement parametersMeasuring rangeMaterialMeasurementinaccuracy*ReproduceablilityHumidityTemperatureProbe shaftCablePlugHumidity: (+25 °C)**Humidity: for deviations from themedia temperature ±25 °CTemperature: at +25 °C / +77 °FHumidityWallRoom climate probewall mountingDuctClimate probe ductmountingDuctProcess climateprobe duct mountingfor higher processtemperaturesCable%rF/%RH, °C td/°F td, °C/°F0 to 100 %RH-20 to +70 °C/-4 to +158 °F-30 to +120 °C/-22 to+248 °F-20 to +70 °C/-4 to+158 °FPlastic ABSFEP coatedPlastic ABS±1,7 %RH (0to90%) / ±1,9 %RH (90to100%)+0.02 %RH/KClimate probe withcableCableStainless steel processprobe with cable forhigher processtemperatures-30 to +120 °C/-22 to+248 °FStainless steel±0.2 °C / 0.38 °F (PT1000 Class A) Pt1000 1/3 Class Bbetter than ±0.5 %RHProbeDiameter12 mmdimensionsCable lengthPressure tightnessProbe shaft length L70/200 mm–without280 mmspecially for duct versions1 bar positive pressure (probe tip)140/280 mm1/2 m200/500 mm1/2/5 mPN 10 (probe tip)PN 3 (probe end)Drawingstesto6651Measurement transmittertesto 6651Duct probetesto 6602/6603Measurement transmittertesto 6651Cable probetesto 6604/6605Wallprobetesto6601**Determination of measurement uncertainty according to GUM (Guide to theExpression of Uncertainty in Measurement)The following uncertainty factors are taken into account in determination:- Hysteresis- Linearity- Reproduceability- Adjustment site/uncertainty of factory calibrationThis total view results in an additional humidity-dependent uncertainty of ±0.007 x m.v.(in %RH)Measurement inaccuracy in °CTemperature error dependent on processtemperature and electronics temperature0,60,50,40,30,20,1System error 6650 probe, electronics +25 °CSystem error 6650 probe, electronics -25 to +70 °C0-20 -10 0 -0,110 20 30 40 50 60 70 80 90 100 110 120-0,2-0,3-0,4-0,5-0,6Process temperature in °C*Other accuracies apply for the wall probe with 70 mm length in combination with a current output (P07):Operation: with 2 channels at 12 mA, without display illumination, relay off, additional measurement inaccuracy to above data at +25 °C (+77 °F), humidity ±2.5 %RH,temperature ±1 °C (1.8 °F)

24Humidity transmitter testo 6681PreventiveMaintenance,Profibus and P2Asoftware ...Jens Amberg,Product GroupManagerMeasuringSystems at Testo... will soon no longerbe missing, when thoseresponsible for systemsuse professionalhumidity transmitters.We are proud to beable to introduce theseexcellent new productsto the world market.Transmitter testo 6681without displayTransmitter testo 6681with display

25testo 6681 – the industrial humidity measurement transmitterIndustrial humditiy measurement requires absolute professionalism.Not only in the running of the system, but also in the measurementtechnology used. The industrial humidity transmitter testo 6681 fulfilsthese high demands.Over and above the features and benefits of the testo 6651 alreadydescribed above (digital probes, P2A software etc.), the testo 6681has a number of additional features, which the practician willappreciate.– Accuracy, up to ±1 %RH– Preventative maintenance via the early warning probe testo 6617– A number of humidity parameters, such as absolute humidity andenthalpy etc.– An absolutely robust metal housing– A trace humidity probe (testo 6615) with auto-adjustment and highaccuracy up to -60 °C tpd– A high humidity probe (testo 6614), stable even in continuous highhumidity processes– The field bus connection via Profibus-DP, a world innovation inhumidity measurementThese and other reasons make testo 6681 the first choice incleanroom technology, in drying technology, trace humidity andcompressed air processes and demanding air conditioningtechnology.Overview of the product range: measurement transmitters testo 6681 and digital probes 6610Whether the decision is made in favour of a testo 6651 or a testo 6681 depends above all on the choice of probe, in addition to thequestion of the housing material (6681: metal housing), and the humidity parameters or signals to be used (e.g. professional bus only intesto 6681). In general, the measuring range 0 to 100 %RH applies, although for continuous high humidity the testo 6614 isrecommended.Wall Duct CableStandard±1 %RH ±1,7 %RH ±1 %RH ±1,7 %RH ±1 %RH ±1,7 %RH-20 to +70 °C-4 to +158 °F-20 to +70 °C-4 to +158 °F-20 to +120 °C-4 to +248 °F-40 to +180 °C-40 to +356 °F-20 to +70 °C-4 to +158 °F-20 to +120 °C-4 to +248 °FForhighhumidity–> heatedFortracehumidity–> withautoadjustSecurity–> autodiagnosisat thesensor6601 6602 6603 6604 6605Probes for testo 6651 (testo 6600)-60 to +30°C tpd±1,2 %rF-20 to +70 °C-4 to +158 °F-30 to +150 °C-22 to +302 °F-40 to +180 °C-40 to +356 °F-40 to +180 °C-40 to +356 °F6611 66126613 6614 6615 6617Probes for testo 6681 (testo 6610), see page 28

26Order code measurement transmitter testo 66810555 6681 A01 BxxCxx Dxx Exx Fxx Gxx Hxx Ixx Jxx KxxB01B02B03B04B05B06B77C00C02C03C04C05C06C07D01D02D034 to 20 mA (2-wire, 24 VDC), not possible with relaysor probes testo 6614/66150 to 1 V (4-wire, 24 VAC/DC)0 to 5 V (4-wire, 24 VAC/DC)0 to 10 V (4-wire, 24 VAC/DC)0 to 20 mA (4-wire, 24 VAC/DC)4 to 20 mA (4-wire, 24 VAC/DC)Profibus-DPWithout displayWith display / EnglishWith display / GermanWith display / FrenchWith display / SpanishWith display / ItalianWith display / JapaneseCable input M16 (relay: M20)Cable input NPT ½”Cable contact via via M plug connectionfor signal and supply (for optional relays: M20cable input)Clear-text language.Operating menuavailable only withdisplay.H00H01H02I00I01I02I03I04I05I06I07I08I09I10I11I12I13I14I15I16I17Without relay4 relay outputs, limit value monitoring4 relay outputs, limit values channel 1 + collectivealarmno optional 3rd analog output%RH / min / max°C / min / max°F / min / max°C td/ min / max°F td/ min / maxg/kg / min / maxgr/lb / min / maxg/m 3 / min / maxgr/ft 3 / min / maxppmV / min / max°Cwb / min / max (Wet Bulb)°Fwb / min / max (Wet Bulb)kJ/kg / min / max (enthalpy)hPa / min / max (water vapour partial pressure)inch H 2O / min / max (water vapour partial pressure)°Ctm / mixture dewpoint for H 2O 2see page 46°Ftm / mixture dewpoint for H 2O 2not withB01Channel 3*F01F02F03F04F05F06F07F08F09F10F11F12F13F14F15G01G02G03G04G05G06G07G08G09G10G11G12G13G14G15%RH / min / max°C / min / max°F / min / max°C td/ min / max°F td/ min / maxg/kg / min / maxgr/lb / min / maxg/m 3 / min / maxgr/ft 3 / min / maxppmV / min / max°Cwb / min / max (Wet Bulb)°Fwb / min / max (Wet Bulb)kJ/kg / min / max (enthalpy)hPa / max (water vapour partial pressure)inch H 2O / min / max (water vapour partialpressure)%RH / min / max°C / min / max°F / min / max°C td/ min / max°F td/ min / maxg/kg / min / maxgr/lb / min / maxg/m 3 / min / maxgr/ft 3 / min / maxppmV / min / max°Cwb / min / max (Wet Bulb)°Fwb / min / max (Wet Bulb)kJ/kg / min / max (enthalpy)hPa / max (water vapour partial pressure)inch H 2O / min / max (water vapour partialpressure)Channel 1*Channel 2*K01K02K03K04K05K06K07IM German-EnglishIM French-EnglishIM Spanish-EnglishIM Italian-EnglishIM Dutch-EnglishIM Japanese-EnglishIM Chinese-EnglishOrder example measurement transmitter testo 6681Housing with display with menu in English4 to 20 mA (4-wire)Cable input M16/M20Factory setting channel 1:°C tpdwith scaling min 0 °C td, max 100 °C td*Factory setting channel 2:°C with scaling min -10 °C/-14 °F,max +70 °C/+158 °F*with relaywithout 3rd channelInstruction manual in Spanish + English 0555 6681 A01 / B06 / C02 / D01 / F04 / 0 / 100 /G02 / -10 / +70 / H01 / I00 / K03* The standard scaling is delivered, as long as “min” and “max” arenot specified.

27Technical data measurement transmitter testo 6681GENERALHousingDimensionsWeightDisplayResolution displaySENSOR (more data see probes)HumidityMetal1.5 kg (without probe)2-line LCD with clear-text line (optional) and relay status display. Four operating buttons for operating menu.0.1 %RH or 0.1 °C / °F / °C td / °Ftd / °Ctw / °Ftw or 1g / kg / g/m 3 / ppmCable screw fitting(Code D01)M 16 x 1.5 (2x) with inner diameter 4-8 mm for signal/supply cable (for option D01)M 20 x 1.5 (2x) with inner diameter 6-12 mm for relay cable (for options D01 or D03)Probe connectionDigital plug-in connectionVoltage supply 2-wire: 24 VDC ±10 %4-wire: 20 to 30 VAC/DC, 300 mA max. current consumptionProtection class IP 65EMC2004/108/EGOperating temperature housing -40 to +70 °C/-40 to +158°F, with display 0 to +50 °C/32 to +122 °F, optimum at +15 to 35 °C/+59 to 95 °FStorage temperature -40 to +80 °C/-40 to +176 °FMeasurement parametersMeasurement mediumReproduceabilityMeasurement inaccuracy %RHReaction time without protective filter122 x 162 x 77 mm (without probe)Dependent on probe, altogether are available:Temperature in °C / °F; relative humidity %rF (%RH); dewpoint in °C td(°F td); pressure dewpoint in °C tpd(°F tpd); absolute humidity in g/m 3(gr/ft 3 ); degree of humidity in g/kg (gr/lb); enthalpy in kJ/kg (BTU/lb); psychrometer temperature in °Ctw (°Ftw); water vapour partialpressure in hPa / H 2O; water content in ppm vol / % Vol; mixture dewpoint H 2O 2/ in °Ctm / °FtmAir, nitrogen, more on request: applicationsupport@testo.deTesto humid. sensor, cap.better than ±0.5 %RHcf. probe data6617Probes 6611 6612 6613 6614 6615Measuring range Humidity0 to 100 %RH-60 to +30 °C tpd0 to 100 %RH(Standard scaling) Temperature -20 to +70 °C/-4 to +158 °F -30 to +120 °C/-22 to -40 to +180 °C/-40 to -40 to +180 °C/-40 to -40 to +120 °C/-40 to -40 to +180 °C/-40 to+248 °F+356 °F+356 °F+248 °F+356 °FMeasuring range%RH °C td°F tdg/m³g/kg°Cwb°Fwb(Standard scaling)0 to 100 -80 to +100 -112 to +212 0 to 600 0 to 9500 -40 to +180 -40 to +356t 90 max. 10 sANALOG OUTPUT (uniform for all channels, specify when ordering)Quantity2 channels (type analog signal uniform for both channels, specify when ordering)additional 3rd channel (optional)Current/accuracy4 to 20 mA ±0.03 mA (2-wire)0 to 20 mA ±0.03 mA (4-wire)4 to 20 mA ±0.03 mA (4-wire) for heated sensor technologyVoltage/accuracy0 to 1 V ±1.5 mV (4-wire)0 to 5 V ±7.5 mV (4-wire)0 to 10 V ±15 mV (4-wire)Galvanic isolationGalvanic isolation of the output channels (2-wire and 4-wire), isolation of supply from outputs (4-wire)Resolution12 bitMaximum load 2-wire 12 VDC: 100 Ohm24 VDC: 500 Ohm30 VDC: 625 Ohm4-wire 500 OhmFURTHER OUTPUTSRelays (optional) 4 relays (free allocation to measurement channels or as collective alarm with operating menu/P2A software), up to 250 VAC / 3 A,(NC/C/NO)Digital output Mini DIN for Testo P2A parameterization software and Testo portable instruments 400/650Profibus-DP (optional as an intermediate layer)

28Ordering options probe range testo 66100555 6610 Lxx MxxNxxPxxL11L12L13L14L15L17Probe 6611 (wall version)Probe 6612 (duct version to 150 °C)Probe 6613 (cable version to 180 °C)Probe 6614 (heated cable version)Probe 6615 (trace humidity cable version)Probe 6617 (self-monitored cable version)Order example probe 6613Cable probe, -40 to +180 °CSintered stainless steel filterCable length 2 mProbe length 300 mmM01M02M03M04M05M06M07M08Sintered stainless steel filter for filter selection see p.33Wire mesh protective capSintered Teflon filterMetal protective cap, openPlastic protective cap ABS, openTeflon filter with drip holeTeflon filter with drip hole and condensation protectionFilter for H 2O 2environments** 0555 6610 L13 / M01 / N02 / P30specially for high humidityN00N01N02N05N10N23Without cableCable length 1 mCable length 2 mCable length 5 mCable length 10 mCable length, specially for duct versionsL11 L12 L13 L14 L15 L17X – – – – –– – X X X X– – X X X X– – X X X X– – X X X X– X – – – –P07P14P20P30P50P80Probe length 70 mmProbe length 120 mmProbe length 200 mmProbe length 300 mmProbe length 500 mmProbe length 800 mmL11 L12 L13 L14 L15 L17X – – – –– – X – – –X X X X X X– X X – – –– X X X X X– X X – – –Ordering procedure:The measurement transmitter and the probes can be ordered independently of each other, (thanks to the digital probe interface), cf orderexamples above.If the measurement transmitter and the probe order are to be assembled together, their order codes are combined in the distribution set 05636651**H2O2 processes:With the testo 6681, Testo offers a transmitter which can also be used in hydrogen peroxide processes (H2O2) – for example in sterilization.The sensor is protected with the help of a special probe (CodeM08). The so-called “mixture dewpoint” °Ctm/°Ftm is also displayed.

29Technical data probe range testo 6610Model testo 6611 testo 6612 testo 6613 testo 6614 testo 6615 testo 6617TypeWallDuctCableHeated cableCable trace humidity(self-adjustment)Cable with coverelectrode monitoringApplicationMeasurement parametersMeasuring rangeMaterialMeasurementinaccuracy*HumidityTemperatureProbe shaftCablePlugHumidity: (+25 °C)**Room climateprobe wallmountingProcess humidityprobe ductmountingProcess humidityprobe flexiblewith cableHumidity probe forhigh humidityapplications / whenrisk of condensation°C/°F, %rF/%RH, °C td /°F td , °C tpd /°F tpd , g/m 3 /gr/ft 3 , g/kg/gr/lb, kJ/kg, BTU/lb, °Ctw/°Ftw, hPa, inch H 2 O, ppm vol %, %vol, °Ctm(H 2 O 2 )/°Ftm (H 2 O 2 )0 to 100 %RH-60 to +30 °C tpd0 to 100 %RH-40 to +180 °C/-40 to +356 °F -40 to +120 °C/-22 to+302 °FStainless steelFEP coatedPlastic ABS±1.0 %RH (0to90%) (testo 6614only: 0to100%)/ ±1.4 %RH (90to100%) for testo 6611/12/13±1.2 %RH (0to90%)/ ±1.6 %RH (90to100%) for testo 6617Humidity: for deviations from the+0.02 %RH/Kmedia temperature ±25 °CPressure dewpopint±1 K at 0° C tpd±2 K at -40° C tpd±4 K at -50° C tpdTemperature: at +25 °C / +77 °F±0.2 °C / 0.38 °F (PT100 1/3 Class B)Reproduceablility Humiditybetter than ±0.5 %RHProbeDiameter12 mmdimensions Probe shaft length L80/200 mm 200/300/500/800 120/200/300/500/mm800 mm200/500 mmCable length – specially for ductversions1/2/5/10 mPressure tightnesstesto 6611testo6651testo 6612Measurementtransmittertesto 6651-20 to +70 °C/-4 to+158 °F1 bar positive pressure (probe tip)testo 6622: PN 5Duct probetesto 6612-30 to +150 °C/-22to +302 °Ftesto 6613Measurementtransmittertesto 6651Cable probetesto 6613PN 10 (probe tip)PN 3 (probe end), testo 6623: PN 5testo 6614Measurementtransmittertesto 6651Cable probetesto 6614Humiditiy probe fortrace humidity /pressure dewpoint(with selfadjustment)PN 16 (probe tip)Humidity probe withself-monitoring forsensor-damagingmedia-40 to +180 °C/-40 to+356 °F1 bar positivepressure (probe tip)testo 6615/6617Measurement Cable probetransmitter testo 6615/6617testo 6651Wallprobetesto6611**Determination of measurement uncertainty according to GUM (Guide to theExpression of Uncertainty in Measurement)The following uncertainty factors are taken into account in determination:- Hysteresis- Linearity- Reproduceability- Adjustment site/uncertainty of factory calibrationThis total view results in an additional humidity-dependent uncertainty of ±0.007 x m.v.(in %RH)Measurement inaccuracy in °CTemperature error dependent on processtemperature and electronics temperature0,60,50,40,30,20,1System error 6680 probe, electronics +25 °CSystem error 6680 probe, electronics -25 to +70 °C0-40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180-0,1-0,2-0,3-0,4-0,5-0,6Process temperature in °C*Other accuracies apply for the wall probe with 70 mm length in combination with a current output (P07):Operation: with 2 channels at 12 mA, without display illumination, relay off, additional measurement inaccuracy to above data at +25 °C (+77 °F), humidity ±2.5 %RH,temperature ±1 °C (1.8 °F)

30testo 6681 – the industrial humidity measurement transmitterEarly warning system and self-monitoring –preventive maintenanceToday, professional humidity measurement transmittersare usually reliable links in the humidity regulatory chain.Testo has made a significant contribution to this with thehelp of the robust, condensation-proof Testo humiditysensor. However, if there are corrosive media in theprocess, this often means that after a while the sensorceases to function, accompanied by costly rejects (qualitydeficiency in the end product) and system downtimes.%RHEarly warningearly probereplacementTesto has developed a special solution for theseapplications: the Testo “early warning humidity probe”testo 6617. This continuously monitors the Testo humiditysensor for any symptoms of beginning corrosion. Itrecognizes this situation very early. The personresponsible for the system is therefore already warnedbefore measurement errors or measurement interruptionsoccur.Not only the probe testo 6617 serves as an early warning.The testo 6681 also has numerous self-analyses, such as... instead of:FalsemeasurementMeasurementbreakdown– Warning if a state of condensation exists for too long– Warning of the suspicion of drift based on the 2-pointadjustment– Warning of unsuitable operating voltageHow are these early warnings passed on to theresponsible person? In addition to the clear-text display,one of the four relays can be allocated a “collectivealarm”. In addition to this, all individual reports can betransferred, as long as the transmitter has the digital fieldbus communication Profibus-DP, see below.Thanks to the early warning, the system supervisor canreplace the probe early – and without interrupting themeasurement. The experts know: the costs saved bysuch “preventive maintenance” far exceed theinvestment. The motto is “System Availability”.Continuous measurement thanks to testo 6617Measurement interruption with conventional humidity probes

31testo 6681 – the signal outputsProfibus-DP – finally also for humidity applicationsSPS(= Profibus-Master)testo 6681 as “Profibus Slaves”As the first provider of humidity measurement technologyin the world, Testo has made the most common field busavailable: Profibus-DP. This has become standard inproduction automation and is also often used for dryingprocesses or in compressed air technology.Thanks to an “intermediate layer” (sandwich design), thetesto 6681 can be equipped with this communicationvariant ex-works (Code B77) or later on site (Part no.0554 6686).The advantage of the field bus: in addition to themeasurement values, all individual reports (i.e. also thenumerous self-monitoring reports) can be passed on tothe connected control. The relay limit values can also bealtered “from above” (see graphic on left), e.g. to suit thecurrent production batch.Analog outputs – two or optionally threeModel testo 6681 with accessory Profibus intermediate layerThe testo 6681 is also very versatile regarding its analogoutputs. In addition to the type of signal (4 to 20 mA twowireor four-wire, 0 to 1 V, 0 to 5 V, 0 to 10 V, 0 to 20 mA),the number of analog outputs can be selected whenordering. Two or three channels are available. Thismeans, for example, that the dewpoint can also becontinuously montored, in addition to the relative humidityand the temperature, without the need for complicatedcalculations in the control.A channel can also be simply duplicated (e.g. 2x “0 to100 %RH”) in order to control an external displayseparately.Digital reports(limit value violations /collective alarm)4 relaysup to 250 VACPLC / SCADA / control systems2 / 3 analog outputsIntegrated relays (optional)Thanks to the four power relays (up to 256 VAC, 3A),assemblies of the air conditioning system can be directlyswitched without the “detour” via a control. At the sametime, the relays can be used for local alarming or forreporting limit value violations to a superordinate system.And not least, the person responsible for the system canbe called to the measurement site in time with the help ofa “collective alarm” (cf. self-monitoring”).AssemblyswitchingLocalalarm

32testo 6681 – high humidity and trace humidityHigh humidity – testo 6614Processes with high humidity are among the mostdemanding challenges in measurement technology. In thisrange, conventional sensors tend to react slowly, whilecorrosion – high humidity processes often containcorrosive media – can endanger the long-term useabilityof the sensor.Testo provides a unique solution for this application withthe digital probe testo 6614. The sensor heating creates ahighly stable microclimate, in which fast reaction, highlyaccurate measurement and corrosion-proofness areguaranteed. With the help of an additional temperatureprobe, the actual process temperature is measured, andthe process humidity calculated in the microprocessor.Long-term stability with high accuracy – up to now, thiscombination was beyond our reach in the high humidityrange.T[°C]“Microclimate” sensorconditions afterheating5 Ke.g. 73 %RHMist100 %rFProcess conditions highhumidity[g/kg]Trace humidity – testo 6615Trace humidity – i.e. very low relative humidity ordewpoint values – is also a very demanding measurementtask. Conventional humidity sensors show their limitationshere, especially in their measurement accuracy.Testo has now succeeded in developing a special sensoron the basis of a self-adjustment. With sensationalresults: Down to low trace humidities of -60° dewpoint(this corresponds to a relative humidity of 0.03 %RH at+25 °C/77 °F), the digital probe testo 6615 still provideshighest accuracy.Error∆ °C tpdConventional polymersensorThe appropriate accessories for this application are nowalso available:testo 6615– Prefilter 0554 3311 (for protecting the measurementchamber and sensor)– Precision measurement chamber 05544 3312(stainless steel) with adjustable flow-off, formeasurements in compressed air up to 35 bar– Flow-through meter for measurement chamber 05543313, for monitoring flow-off from the measurementchamberWith the help of these components, the optimum flowimpact of the sensor, at any pressure (up to PN 16) andwith optimum contamination protection, can be set. Forlong-term stable trace humidity measurements incompressed air and dry gases.-60 -30 0 30°C tpdConnection of trace humidity probe testo 6651 via measurement chamberand pre-filter

33P2A software for testo 6621, testo 6651 and testo 6681Software for parameterization, adjustment andanalysisOptimum procedures from the point of view of the user –that is the central idea of the new measurementtransmitter software “P2A” from Testo. The name standsforP – ParameterizationA – AdjustmentA – AnalysisAll new (and future) Testo measurement transmitterscommunicate with this software, the connection of thePC (via external or easily accessible interfaces) beingextremely easy. The software only needs to be boughtonce – all further updates are free of charge!An additional advantage is the supply of themeasurement transmitter via USB. Parameterization oranalysis can thus be carried out without the need forwiring – e.g. at a desk or in a workshop.P2A software: parameterization and datamanagementIn the course of commissioning, the scaling of the analogchannels, the limit values of the (optional) relays, thesignal damping etc. are set. The P2A software supportsall these procedures with convenient menus which areextensively supported graphically.Are several measurement sites intended to have thesame parameters? No problem - the parameter sets canbe transferred by simple “drag and drop”. This savesconsiderable time in larger installations.P2A software: adjustmentIn addition to the 1-point adjustment (offset) and the 2-point adjustment (with the help of the saline solution potsor a humidity generator), the P2A software supports theanalog adjustment of each analog channel. Using aprecise multimeter, the entire measurement chain(including the digital-analog converter) can thus beadjusted. Unique: adjustment histories present in detailwho carried out which adjustment when, and at whichreference values. This provides uninterrupteddocumentation, independently of whether theadjustments were carried out with (any) P2A software, theoperating menu or the adjustment buttons.

34P2A software for testo 6621, testo 6651 and testo 6681P2A software: analysis and historiesOptimum for error detection or optimization: the analysistools of the P2A software. The analog and relay signalscan be tested and the min.-/max. values can bedisplayed.But how can you look into the past?1. Parameterization historyAll re-scaling, changes of the physical unit etc. are shownhere.2. Adjustment history, divided intoI. 1-point adjustmentII. 2-point adjustmentIII. Analog adjustment3. History of all early warnings/error reports (not for testo6621)All warning, error and status reports, which thetransmitter has created, are displayed.The adjustment history is simply and clearly presented in the P2A softwareIn the testo 6621, all entries (i.e. all parameterizations andadjustments) are stored and clearly displayed in therespective P2A software used.The transmitters testo 6651 and 6681 also have internaloperational hour counters and wrap-around memories,which always store the last 180 entries.

35Filter / protective caps for testo 6621, testo 6651, testo 6681 and hygrotest 600/650testo 6681/probe 6614 is recommended for continuous high humidity applicationsCode M01/ G1(0554 0647):Stainless steelprotective cap(sintered filter)70 °C/158 °FTemperature50 °CFlow velocity [m/s]70 °C/158 °FTemperatureSpecial features- mechanically robust- good sensor protection- easy to clean-20 °C/-4 °F-20 °C/-4 °Fwithout coarse0 500 85 100Flow velocity [m/s] Particle size Is clogged by too relative humidity [%]fine dust (e.g.sand)Code M02 / G2(0554 0757): Wiremesh filterprotective capSpecial features- faster reaction than G170 °C/158 °FTemperature-20 °C/-4 °F50Flow velocity [m/s]570 °C/158 °F2without coarse-20 °C/-4 °F0 50 85 100Flow velocity [m/s] Particle sizerelative humidity [%]TemperatureCode M03 / G3(0554 0756):Teflon protectivecapEspecially suited to applicationswith fine, sticky particles.70 °C/158 °FTemperature50Flow velocity [m/s]Teflonfilter70 °C/158 °F0106-20 °C/-4 °Fwithout2coarse-20 °C/-4 °F0 100 85 100Flow velocity [m/s] Particle sizerelative humidity [%]TemperatureCode M04 / G4(0554 0755): Metalprotective cap(open)Especially suited to cleanrooms70 °C/158 °FTemperature0-20 °C/-4 °F0 750Flow velocity [m/s]7withoutcoarse70 °C/158 °F-20 °C/-4 °F0 85 100Flow velocity [m/s] Particle sizerelative humidity [%]Temperature

36Accessories Testo humidity transmittersAccessories Testo humidity transmittersInterface and software P2A software (parameterization, adjustment and analysis software for PC), with USBcable (for PC) to mini DIN (instrument)testo 6621testo 6651testo 6681 hygrotest 600 hygrotest 650–— –—Part no.0554 6020Configuration unit incl. display with operation menu in robust metal housing, 1 m ribboncable with plug, battery0554 9916Fixings, installation assistance Wall/duct holder (for mounting duct version in duct or for mounting duct version on wall)0554 6651Basic single hole duct screw fitting in plastic (polyamide, -20...+80 °C/-4...+176 °F), gasket ring inNBRDuct screw connection (aluminium/PVC)0554 17930554 1794Pressure-tight screw connection G1/2“ (st. steel) with cutting ring to 10 bar (145 psi)0554 1795 Pressure-tight screw connection G1/2“ (st. steel) with Teflon ring to 6 bar (87 psi)0554 1796Stainless steel flange for screw connections to DIN 25760554 1797Wall holder (aluminium coated) for PHTSensor filters and protective caps (in brackets: order code in the instrument order code)Stainless steel sintered filter, pore size 100 µm, probe protection in dustyatmospheres or higher flow velocitiesWire mesh filter, probe protection from coarse particlesTeflon sintered filter, Ø 12 mm, for corrosive substances, high humidity range (long-termmeasurements), high velocitiesMetal protective cap (open), fast reaction time at flow velocities < 7 m/s (not suitable for dustyatmospheres)Plastic protective cap (open), fast reaction time at flow velocities

37Accessories Testo humidity transmittersAccessories Testo humidity transmittersAdjustment possibilitiestesto saline pots for control and humidity adjustment of humidity probes, 11.3 %RH and 75.3%RH with adapter for humidity probeAdjustment adapter (for 1-point adjustment with testo 400 or testo 650)Reference set (testo 650, 1 %RH probe with certificate)Connection cable for calibrating the transmitter with testo 650 ortesto 400 hand-held instrument, cable: 1.5 m longtesto 6621testo 6651testo 6681 hygrotest 600 hygrotest 650 * Part no.SupplyMains unit (desk-top) 110 to 240 VAC/24 VDC (350mA) 0554 17480554 06600554 60220699 3556/150409 0214Mains unit (rail mounting) 90 to 264 VAC/ 24 VDC (2.5A)Spare partsSpare sensor system (%RH) for testo 6621 - A02 (duct version), 2 point adjustment requiredExternal displaytesto 54-2 AC process display, 2 relay outputs (to 250 VAC/300 VDC, 3 A), mains supply: 90 to260 VACtesto 54-7 AC process display, 2 relay outputs (to 250 VAC/300 VDC, 3 A), mains supply 90 to260 VAC, RS485 output for online monitoring and with totalizer displayCalibrationISO cal. cert./humidity, humidity data logger; calibration points 11.3%RH and 75.3%RH at+25°C/+77 °F; per channel/instrumentISO calibration certificate/electrical, calibration in measurement ranges 0 to 20 mA; 4 to 20mA; 0 to 1 V; 0 to 10 V 0554 17490420 00065400 75535400 75550520 00760520 1000Standard DKD calibration, measurement transmitter only0520 1200ISO calibration certificate humidity 0520 0176ISO calibration certificate/humidity, Calibration points freely selectable from 5 to 95 %RH at +15to +35 °C/+59 to +95 °F or -18 to +80 °C/-0.4 to +176 °F 0520 0066DKD calibration certificate humidity 0520 0276DKD calibration certificate/humidity, Cal. points freely selectable from 5 to 95%RH at +25°/+77 °FC or +5 to +70°C/+41 to +158 °F* for duct version only 0520 0236 Profibus module for customer installation Profibus plug and socket Profibus T-piece and ProfibusaccessoriesProfibus end resistance

38Humidity transmitters hygrotestExperts are ourfavoritecustomers!Detlef Higgelke,Head of theTesto Academy...because theyknow whatthey’re doing.With the TestoAcademy, wewant to help youto become anexpert and stayone. Practiceorientedtrainingon measurement methods,regulations and physicalinterrelationships.Even more important, however, isthe exchange of ideas with otherexperts from your field. After all, itis all about your competence andyour professional routine in theuse of your instruments.By the way: 98% of Academyparticipants unconditionallyrecommend the seminars andtraining further.All parameterizing can becarried out on site withthe user menuThe portable climatereference instrument testo400 allows easyadjustment of readingsThe salt solutions forrepeated use serve tomake cost-effective twopoint-calibtationson siteProcess:ComSoftRS4854 to 20 mAThe Trendows-Xpsoftware enablescomfortable on-linemonitoring, also for21CFR11 applications

39Humidity transmitter hygrotestAs a complement to the modular transmitters testo 6651/6681(transmitter and probe), the testo hygrotest offers a compact design.hygrotest 600The standard measurement transmitter. The humidity and temperaturemeasurement transmitter hygrotest 600 is employed everywhere, wherehumidity and temperature need to be reliably measured and regulated.Typical areas of application are air conditioning systems, air humidifyingsystems, food production and storage.%RH/TInlet air%RH/TIn the production of hygroscopic products (paper,textiles, granulate, powder), the hygrotest 600 monitorsand regulates humidity and temperature accurately.MAir conditionedroom%RH/TTTRecycledairAir exhaust%RH/T(if recycled air)In addition to the air conditioned room, (e.g. storeroom/production with 1 hygrotesteach per zone), 2–3 hygrotests per central air conditioner are employed.hygrotest 650The industrial measurement transmitter. In many industrial processes, alsoin the high humidity range, the accurate and reliable measurement oftemperature and humidity have a deciding effect on quality. The industrialmeasurement transmitter hygrotest 650 from Testo excels through itsaccuracy and robustness. Typical areas of application are cleanrooms inpharmaceutical and semiconductor production, test benches, dryingsystems, spray-painting systems, and fuel cells. The heated versionhygrotest 650 HP is employed within the high humidity range.%RH°CFeaturesDrying processes place very high demands on thehumidity transmitter. The hygrotest 650 works optimallyin all humidity ranges and in temperatures up to +180°C/+356 °F.600 PHT600 DH/DHT600 WH/WHT650 HP650 PHT650 DHT650 WHTMoistmaterialDriedmaterialTimeThe product moisture is lowered in drying processes with optimized progressionOverview hygrotest measurement transmittersPriceAbbreviations for product description and equipmentW WallD DuctP ProbeH HumidityT TemperatureHP Heated probe

40hygrotest 600: Standard humidity measurement transmitter for air conditioning and processW - wallD - ducttesto humiditysensor + NTCP - probe with cabletesto humiditysensor + NTCChannel 2 (WHT)Channel 1 (WH+WHT)65 mm plastic probetesto humidity sensor + NTCChannel 1 (DH+DHT)200 mm probe made ofplastic (DH/DHT -20/70)stainless steel (DHT -20/120)Channel 2 (DHT)Channel 1+2 (PHT)Plastic probes(PHT -20/70) orstainless steelprobes(PHT -20/120)Cable (250...2000 mm)Wide selection of displays (optional, also for W/D versions)User menu via 3 interior buttonsAll hygrotest humidity measurement transmitters are customer-specifically configured.Please choose the solution suited to you from the options below, for example a hygrotest 600 with a probe on a cable, standard cable length 2 metres,standard probe length 210 mm, Teflon filter, display H5, -30 to +50 °Ctd (dewpoint) as output channel 1, -20 to +120 °C/ -4...+248 °F as outputchannel 2.This results in the following order code:hygrotest 600 PHT -20/120 / C1 / D1 / G3 / H5 / K2 / -30 / 50 / L2 / M10555 0600 hygrotest 600*VersionsWall-mounted, output %RHWHWall-mounted, outputs %RH + T WHT -20/70Duct-mounted, output %RH DHDuct-mounted, outputs %RH + T DHT -20/70Duct-mounted, outputs %RH + T DHT -20/120Probe version, outputs %RH + T PHT -20/70Probe version, outputs %RH + T PHT -20/120Probe and cable lengthStandard probe length (W: 65 mm, D: 200 mm, P: 210 mm)(DHT -20/70: 100 mm)(PHT -20/120: 210 mm)Special length stainless steel probe(DHT -20/120: 100 to 800 mm)(PHT -20/120: 150 to 800 mm)C1C2Scaling channel 2M1 Stand. scale chann. 2 (4 to 20 mA = -20 to 70/120 °C)M2 Spec. scale chann. 2 (4 to 20 mA = min to max*) + N1°C(e.g. “M2 30...60 N2” for 30 to 60 °FN2°FScaling channel 1K1 Stand. scale chann. 1 (4...20 mA = 0 to 100 %RH)K2 Spec. scale chann. 1 (4 to 20 mA 0 min to max* + L1 %RH(e.g.”K2 20 to 80 L1” for “20 to 80 %RH) L2 dewp. °C* Please name scaling limits! L3 dewp. °FDisplay versions (cf. p.20) H1 H2 H3 H4 H5 H6Display supplied by transmitterExternal display supplyxxxx x xStandard cable length (P-versions only, 2 m)D12 x 2 switch outputsxxSpecial cable length /0.25 to 2 m P-versions)D2Analog outputsx x x x xSpecial cable length 5 m (PHT)D2RS485x x xSensor filters W DH/DHT/PHTStainless steel sintered filter G1Metal wire protective filter G2Teflon sinter filterG3Metal protective cap, open G4Plastic cap (ABS), open G5

41In critical air conditioning applications, it is crucial that humidity andtemperature are measured accurately and reliably over long periods.The hygrotest 600The hygrotest 600 is to be found as a professional standardinstrument in industrial processes and in air conditioningtechnology, where long-term stability* plays an importantpart. The different designs enable wall-mounting formeasurements in rooms, duct-mounting for measurements inducts and the positioning of the probe up to 5 m distancefrom the housing (connected by a wire). Dewpointtemperature can be displayed instead of relative humidity.Technical data hygrotest 600Housing:Material: ABS, colour grey (RAL 7035)Size:130 x 140 x 52 mmScrews:2x M16 x 1.5 (ABS)Ambient temperature: -10...+70 °C (+14...+158 °F)Storage temperature: -40...+80 °C (-40...+176 °F)Protection class: IP 65Sensor:Humidity:Testo humidity sensorTemperature:NTCMeasuring range:Humidity:0...100 %RH*Temperature: Version Application range temperature600 WH -600 WHT -20/70 -20...+80 °C/-4...+176 °F (scaling up to +70 °C/158 °F)600 DH -600 DHT -20/70 -20...+80 °C/-4...+176 °F (scaling up to +70 °C/158 °F)600 DHT -20/120 -20...+120 °C (-4...+248 °F)600 PHT -20/70 -20...+80 °C/-4...+176 °F (scaling up to +70 °C/158 °F)600 PHT -20/120 -20...+120 °C (-4...+248 °F)Process pressure: atmospheric, except DHT/PHT 120 °C up to 4 bar at +10...+40 °C(248 °F to 58 psi at +50...+104 °F)Measurement uncertainty:Humidity:± 2 %RH (in range 0...90 %RH), ± 3 %RH (90...100 %RH)Temperature:± 0.3 °C (-20...+50 °C), 1.5% of meas. (> 50 °C)(-4...+122 °F), 1.5 % of meas. (> 122 °F)Analog outputs:Humidity and temperature: 4...20 mA (in 2 wire technology)Analog output humidity:Resolution:0.02 mADrift:0.001 mA/KAnalog output temperature:Resolution:0.02 mADrift:0.003 mA/KFurther outputs:2 x 2 switched outputs Optional in combination with display H5 or H6, 10 to 28 VDC, max. 100 mADigital outputRS 485 output in combination with display H3, H4, or H5Electrical supply:Electrical supply:24 V DC (10...30 V DC)Electrical supply display H1: minimum 20 V DCMax. load:100 Ω at 10 V, 500 Ω at 24 VMax. load with display H1: 50 Ω at 20 VTypical temperaturedependency of outputs: ± 0.002 mA/°C (at 25 °C/77 °F)Reaction time:t90 approx. 10...20 sEMC:according to guideline 89/336 EECAll data are based on a nominal temperature of +25 °C/77 °F.Probes: (Diameter 12 mm)Version Material Length incl. min./max.protective cap600 WH PC 65 mm -600 WHT -20/70 PC 65 mm -600 DH PC 200 mm -600 DHT -20/70 PC 200 mm -Probe length600 DHT -20/120 Stainless steel 200 mm 100/800 mm600 PHT -20/70 PC 100 mm -600 PHT -20/120 Stainless steel 210 mm 150/800 mmChannel 1 Channel 2 * For continuous application in high moisture range > 90 %RH, use hygrotest 650 PHT or 650 HP.Parameter %RH, °Ctd, °Ftd TRange 0 to 100% -20 to +70/120 °C (-4 to 158/248°F)Output 4 to 20 mA 4 to 20 mAFree scalingFree scalinge.g. 20 to 100%e.g. 10 to 40 °C (+50 to 104 °F)

42hygrotest 650 – High performance humidity transmitters for A/C and processW - Wall mountingD - Duct mountingtesto humiditysensor +Pt1000P - Probe with cabletesto humiditysensor +Pt1000Stainless steelprobesup to 120°CStainless steelprobesup to 180°CChannel 1+2 (WHT)65 mm stainless steel probetesto humidity sensor + Pt1000HP heated probeChannel 1+2 (DHT)Channel 1+2 (PHT)Cable (250 to 10,000 mm) to probeBroad selection of displays (optional, also for W/D versions)Control menu via 3 external buttonsAll hygrotest units are configured to customer specification.From the options below, please select the solution that meets your requirements, for example, a hygrotest 650 with probe on cable, output signal 0 to 20mA, 150 mm long probe, 8 m long cable, measurement uncertainty 1% RH, open metal protection cage, H6 display, Channel 1: 0 to 45 g/m 3 , Channel 2:20 to 160 °C/320 °F.This results in the following order code:hygrotest 650 PHT -20/180 / B4 / C2 / 150 / D2 / 8000 / F2 / G4 / H6 / K2 / 0 / 45 / L5 / M2 / 20 / 160 / N1* *hygrotest 650Scaling, channel 1VersionsScaling, channel 2Wall-mounted, output %RH + T*** WHT -20/70M1 Standard scale, Channel 2 (min ..max = -20 to 70/120/180 °C)Duct-mounted, outputs %RH + T DHT -20/120(min...max = -4 to 158/248/356 °F)Probe version, output %RH + T PHT -40/80M2 Special scale, Channel 2 ( min ..max) * + N1°C N2°FProbe version, output %RH + T PHT -40/120(e.g. “M2 30 to 60 N2” for 30 to 60 °F) N3°Ctd N4°FtdProbe version, output %RH + T PHT -20/180* Give scaling limits ! N5g/kg N6g/m3Heated version, output %RH + T HP -20/120N7WB°C N8WB°FWB = wet bulb temperatureAnalog outputsSensor filters 1) WHT DHT/PHT HP4 to 20 mA (2-wire). (not with HP) B1K1 Standard scale, channel 1 (min to max = 0 to 100 % RH)0 to 1 V (4_wire) B2K2 Special scale, channel 1 (min to max) * + L1 %RH L2 °Ctd0 to 10 V (4-wire) B3(e.g. “K2 20 to 80 L1” for 20 to 80%RH) L3 °Ftd L4 g/kg0 to 20 mA (4-wire) B4* Give scaling limits ! L5 g/m3 L6 WB°C4 to 20 mA (4-wire, only with HP) B5L7 WB°FWB = wet bulb temperatureProbes and cable lengthDisplay versions H1 H2 H3 H4 H5 H6 H8 2) H9 2)Standard probe length (W: 65 mm, D/P/HP: 210 mm) C1Display supplied via transmitterxxSpecial probe length (80 to 800 mm, W/D/P versions) C2External display supplyx x x x x xStandard cable length (only P and HP versions, 2 m) D12x2 switch outputsx xSpecial cable length (0.8 to 10 m, P versions)** D2Analog outputs2 2 2 2 2 3 3Humidity adjustment 2% RH (not for HP or H 2 O 2 )Humidity adjustment 1% RH (not for HP)F1F2RS485Analog input channelsx x x x 2Humidity adjustment 2.5% RH (only in HP, not for H 2 O 2 )F4Sintered stainless steel filterG1Wire mesh protective filterG2Teflon sintered filterG3Metal protective filter, openG4Teflon sintered filter with drip holeG6Condensation protection and Teflon sintered filter with drip hole G7Filter for H 2 O 2 atmospheres 2)G81) for selection cf. page 35 below2) for H 2 O 2 applications cf. page 46. Not with adjustment code F1 orF4, not with HP version, only with H8 display.

43The hygrotest 650 is used successfully in numerous drying processes,e.g. in the drying of textiles, pasta, tobacco and ceramics.The industrial transmitter hygrotest 650The hygrotest 650 transmitter is available optionally with anaccuracy of ±1 %RH. The very robust, easy-to-clean metalhousing optimally protects the transmitter from environmentalinfluences. The length of the cables and probes can beadapted to suit customer requirements. Probes and sensorsare heat resistant up to temperatures of +180 °C/+356 °F.Various humidity parameters such as dew point, absolutehumidity, relative humidity or psychrometer humiditytemperature can be calculated and displayed with the help ofthe integrated psychrometric chart. In addition, theconvenient operating menu (with optional display) isaccessible via outer operating buttons. hygrotest 650 HP, theheated version, is used in continuous high humidityprocesses.Channel 1 Channel 2Parameter %RH TRange °Ctd, g/kg, g/m 3 , WB TOutput % RH °Ctd, g/kg, g/m 3 , WB0/4 to 20 mA 0/4 to 20 mA0 to 1/10 V 0 to 1/10 VFreely scalableFreely scalableThird analog output (channel 3) only withdisplay H8, cf. page 46The threepossiblecombinationsTechnical data hygrotest 650Housing:Material/Colour:Die-cast zinc, nickel-plated, burnished, varnishedDimensions:130 X 140 X 54 mmScrew connections:2 x M 16x1.5 stainless steel screw connectionElectrical connections:2 x 4-pole screw connector in housingProtection class: IP 65Operating temperature:Electronics (Housing): -20 to +70 °C/-4 to +158 °FDisplay: -20 to +60 °C/-4 to +140 °FAmbient conditions:Probe operating pressure range: -1 to +10 bar/-14,5 to +145 psiStorage temperature: -40 to +80 °C/-40 to +176 °FProbe flow resistance:30 m/s, with sintered stainless steel filterSensor:Humidity:Testo humidity sensor, inserted (in HP: soldered)Response time:t90 10 to 20 sTemperature:Pt 1000 Class AMeasuring range:Humidity:0 to 100% RHHumidity calibration points: 11.3 %RH, 75.3 %RH at 25 °CTemperatur: hygrotest 650 WHT -40 to +80 °C/-40 to +176 °Fhygrotest 650 DHT -40 to +120°C/-40 to +248 °Fhygrotest 650 PHT -40 to +180 °C/-40 to +356 °Fhygrotest 650 HP -20 to +120 °C/-4 to +248 °FAccuracy:Humidity:± 2 % RH, optional ± 1 % RH (betw. 10 to 90 %RH in range +15 to +30 °C)In 650 HP: ± 2.5% RH (in %RH >90%)Temp. coefficient humidity: ± 0.05 %RH / K; (at temperatures deviating from 25 °C)Temperature: ±0.2 °C at +25 °CResolution (display): 0.1 %RH and 0.1 °COutputs:Analog output:4 to 20 mA (2-wire system) not with HP0 to 20 mA, (4-wire system)0 to 1 V, (4-wire system)0 to 10 V, (4-wire system)4 to 20 mA (4-wire system, only with HP)Resolution:5 µA (0 to 20 mA; 4 to 20 mA)250 µV (0 to 1 V)2.5 mV (0 to 10 V)Drift (analog):0.35 µA / K (0 to 20 mA; 4 to 20 mA)17.5 µV / K (0 to 1 V)175 µV / K (0 to 10 V)Zero shift:30 µA (0 to 20 mA) as well as HP versions (4 to 20 mA / 0 to 20 mA)(analog) 1.5 mV +0.1% of mv (0 to 1V)15 mV +0.1% of mv (0 to 10V)2 x 2 switch outputs: Optional in combination with display H5 or H6, 10 to 28 VDC, max. 100 mADigital output:RS485 output, optional in connection with display H3, H4, H5, H8Power (not H1 display):24 VDC (12 to 30 VDC), min. 14 VDC at 650 HPMax. load without or500 Ohm (0 to 20 mA); at 24 VDCwith display H2/H4/H5/H6/H8 500 Ohm (4 to 20 mA), at 24 VDCMax. load with display H1 50 Ohm (0 to 20 mA); 50 Ohm (4 to 20 mA), at 20 VDCPower (with display H1): Power supply min. 20 VDCPower consumption:Max. 2 x 21 mA (4 to 20 mA)Max. 2 x 22 mA (0 to 20 mA; 0 to 1 V; 0 to 10V)60 mA (channel 1) + 50 mA (channel 2) at 650 HPEMC:In accordance with guideline 89/336 EECAll data relate to a nominal temperature of +25 °C.Probes:Version Material Diameter Length incl.Protection cap650 WHT -20/70 Stainless steel 12 mm 65 mm650 DHT -20/120 Stainless steel 12 mm 200 mm650 PHT -40/80 Stainless steel 12 mm 210 mm650 PHT -40/120 Stainless steel 12 mm 210 mm650 PHT -20/120 Stainless steel 12 mm 210 mm650 HP -20/120 Stainless steel 12 mm 210 mmTemperature probe with hygrotest 650 HP: Stainless steel 1.4571 blank, 210 mm long, Ø 3 mm,**Probe cable length, 2 m standard or special cable length, 0.8 to 10 m (= length of probe cable and length ofprobe with filter)***hygrotest 650 WHT with 4-wire version (B2, B3, B4) must have a minimum probe length of 250 mm, i.e. C1 isnot possible here.

44hygrotest 650 HP: Special measurement transmitter for high humidity applicationsHigh moisture processes are extremely demandingHigh moisture conditions prevail in many industrial processes, i.e. therelative humidity is close to the 100% limit at which the air can no longerhold the water and condensation is precipitated. A critical point in theregulation chain is moisture measurement. High quality measurementtransmitters are today able to measure accurately even in the highmoisture range, however their reaction capability is severely reduced if theprobe works close to the dewpoint limit over hours and days.Condensation protection:optimum protection inhigh humidity applicationshygrotest 650 HP -20/120Wood drying is one of the most demanding highhumidity applications. The hygrotest 650 HP providesthe optimum solution here.testo humidity sensorA, B: Both probes aresecurely attached by cable(0.8 to 10 m long) to thetransmitter.Teflon capHeating resistanceat the rear, constantwarming by 5 KAB2 analog outputs(0...20 mA, 4...20 mA,0...1 V, 0...10 V), both 4-wireAdditional Pt1000 Cl. Afor compensationof “micro-climate”Ø 3 mmlength ashumidity probe(cf. right)Probe lengthstandard: 210 mmoptional: 80...800 mmØ 12 mmThe innovative Testo solution to the high humidity problemIn the testo 650 HP, the testo humidity probe is heated at the rear, so thata micro-climate is created around the probe (inside the sintered Teflonfilter), which is constantly 5 Kelvin warmer than the actual processconditions. As the psychrometric chart shows, this causes the relativehumidity at the moisture probe to sink from a range close to 100 %RH toa lower value, e.g. of 73%. In this range, the reaction speed is on the onehand noticeably better than in the condensation range, and on the otherhand there is less risk of corrosion for the probe.The actual process temperature is recorded by a separate, highlyaccurate temperature probe Pt1000 class A. On this basis, the microprocessorbuilt into the measurement transmitter computes the actualhumidity conditions in the process. In addition to 4 to 20 mA (4-wire), theversions 0 to 20 mA and 0 to 1/0 to 10 V are available as analog outputs.T[°C]BAPsychrometric chart“Micro-climate”probe conditionsafter heating5 Ke.g. 73 %RHProcess conditionshigh humidityMist100 %RHx[g/kg]

45Easy on-site monitoring and adjustment of all hygrotest transmittersEasy on-site monitoringWith the help of the portable reference measuring instruments testo 400 or testo 650, checking whether the humidity and temperature readings of thehygrotest are within acceptable levels is very quick and easy. To do this, the reference probe and the hygrotest probe are subjected to the sameconditions (in a process or a laboratory). The hygrotest and the testo 400/650 communicate with each other via a ribbon cable. The reference readingsare presented clearly opposite each other in the display of testo 400 or 650. One can now see at a glance whether the readings are correct.One-point adjustment (offset)A one-point adjustment can be carried out at the touch of a button, also using the reference measuring instrument testo 400 or 650 (reference setincludes the precision humidity probe). Via the ribbon cable, the humidity and the temperature characteristic curve of the hygrotest is corrected at theworking point (the current humidity or temperature) by an offset. This adjustment method is always recommended if the process remains in theproximity of the working point, for instance in the range 20...60 %RH where the working point is at 40 %RH.DeviationWP = Working point= Error at WP = OffsetafterWPbefore%RHWorking rangeTwo-point adjustment with re-usable salt solutionsAdjustment using two salt solutions is also possible on site. In the outer chamber of these “control/adjustment containers” is a saturated salt solution.After a period of adjustment, the air in the inside chamber forms equilibrium humidity. In the two standard solutions this is 11.3 % and 75.3 %RH. Theaverage error is smaller in a two-point adjustment than in a one-point adjustment, especially when working in a greater range. The testocontrol/adjustment containers are also re-usable, so that the costs are kept at a minimum. Cannot be used with hygrotest 650 HP (because of sensorheating).DeviationbeforeafterControl and humidity adjustment set11.3 %RH/75.3%RH, incl. adapter forhumidity probe, fast checks oradjustment of humidity transmitterPart no. 0554 066011.3% 75.3%%RHCalibration with traceable calibration standardsTesto additionally offers calibration in accredited Testolaboratories. Where quality assurance requirements must bemet, (ISO 9001, QS9000, GMP, FDA, HACCP,...), ISOcalibration is the ideal solution (laboratory accreditedaccording to ISO 17025). Where the highest reliability isrequired, for example in production standards, assessors,public authorities or for critical applications, DKD calibration isrecommended.

46hygrotest 650 G8-H8/H9: The solution...Dry sterilization places high demands on the humidity transmitter. The hygrotest 650version G8 H8 works optimally in this tough environment.The manufacture of sterile products is becoming more and more important. With thehygrotest 650 version G8 H8, humidity and temperature values in the H 2O 2environment can be measured continuously.The sterile processing of products is playing an increasingly important part in production processes. Hydrogen peroxide (H 2O 2) is a substance which isused for this kind of application, largely in the food and beverage industry, as well as in pharmaceuticals. The H 2O 2is vaporized in order to keep theproducts in the processing chamber sterile. In order to carry out this process optimally, it is important to know, and if necessary to regulate, thehumidity in the sterilization process. Condensation of the goods to be sterilized usually has to be avoided.The patent-pending Testo solutionAs the newest innovation, the humidity transmitter testo hygrotest 650with the newly developed sensor cap G8 and the display version H8 cannot only “survive” the tough H 2O 2environment undamaged, it can alsocontinue to measure humidity during the H 2O 2phases.Special protective cap for H 2O 2(G8); for testo 6681: Code M08The special protective cap G8 isdesigned for use in an H 2O 2environment. Particularlyadvantageous is the fact that, owing to the filtration, a reduction does nottake place, so that saturation of the filter cannot occur. The protectivefunction is permanently guaranteed. Owing to an innovative concept, themixture dewpoint can be determined.Display version H 2O 2(H8 and H9)Different concentrations of H 2O 2are used for thesterilization of products. The specification of the(liquid) hydrogen peroxide is made in percentageby weight. With the display version H8, thisconcentration can be entered directly in thedisplay menu.The mixture dewpoint [°Ctm/°Ftm] or the mixturehumidity [%rF] is then given via a third analogoutput.Ordering variantsThe combination G8-H8/H9 is available for the instruments 650 WHT,DHT and PHT, as long as the adjustment option “F2” (1% adjustment) isselected.For phases without H 2O 2presenceFor phases with H 2O 2presenceChannel 1: Channel 2:Channel 3:Physical units:Input: 0 to 65 % H 2 O 2°C, °FPhysical units:%RH, °Ctd, g/kg,g/m³, °Cwb,°FwbSignal: 0 to 20mA4 to 20mA0 to 10V0 to 1VFreely scalableSignal:0 to 20mA4 to 20mA0 to 10V0 to 1VFreely scalablePhysical units:°Ctm, °Ftm%rF (Mix)ppm H 2 O 2}H9Signal:0 to 20mA4 to 20mA0 to 10V0 to 1VFreely scalableFor the high-end version “H9”, the same details apply as for “H8”,however additionally_– selectable output parameters ppm H 2O 2and %RH (mix.) of the mixtureatmosphere,– 2 analog input channels for reading in the input variables for the H 2O 2calculation online.1) % by weight of H2O2 in the liquid starting solution2) Process pressure

47... for continuous humidity measurement in hydrogen peroxide atmospheresDewpoint distanceA serious danger in sterilization consists in the condensation of the H 2O 2vapour. This happens when the process temperature falls below thedewpoint. The difference between process temperature and thedewpoint is referred to as the dewpoint distance.Example: At a process temperature of 50 °C/122 °F and a dewpoint of40 °C/104 °F, the dewpoint distance is 10 Kelvin.Mixture dewpointMixture dewpoint (°Ctm/°Ftm) is the dewpoint resulting from the partialvapour pressure mixture of water (H 2O) and hydrogen peroxide (H 2O 2).This is the (only) relevant humidity value during the H 2O 2phases.The testo hygrotest 650 version combination G8 H8 allows themeasurement of the mixture dewpoint directly in the production process,so that the dewpoint distance (channel 2 minus channel 3) can bemonitored even during the H 2O 2phases.Accuracy spiralThe measurement inaccuracy of the mixture dewpoint results dependent on the proportion by weight in the liquid solution, the process temperatureand the dewpoint distance (process temperature minus mixture dewpoint). This can be seen in the illustrating graphic.Dewpoint distances in therings increasing from themiddle to the outside from 0to 20 K respectively:20 K15 K10 K5 K0 KDotted lines fordewpoint distances89888790868584Example 1:At a processtemperature of91°C, 40% H 2O 2solution and adewpoint distance of10 K there is ameasurementinaccuracy of ±4-5Kelvin.91839392828194809598979679787776103 104 105 30 31 3280 33 34 353699 100101102 7037386060507574734035302060504030201010057271 70 6905102030666568 6735406450

48Compact transmitter for humidity and temperatureCompact transmitterThe compact transmitter isparticularly suitable for stationaryhumidity measurement in heatingand air conditioning ducts. Theoutput signal 0 to 10 Vcorresponds to 0 to 100%RH.The humidity reading istemperature-compensated overthe entire range.• Splash-proof plastic housing (IP54)• Easy and fast installation on thewall or in a duct with pipeclamp screws• For continuous high humidityapplications, please select theheated version (see below)• Temperature output (Pt100)connectedTesto humidity probe,accurate, long-termstable, temperatureresistant, robustHumidity measurements in HVAC ductsCompact transmitterCompact transmitter, humidity andtemperaturePart no. 6337 9741Quantity discounts availableAccessories Ordering dataPart no.Pipe clamp connection for wall mounting 0554 0093Pipe clamp connection for duct mounting 0401 6331Teflon sintered filter, Ø 21 mm, for corrosive substances, highflow velocities 0554 0666ISO calibration certificate humidity, Calibration points 11.3 %RHand 75.3 %RH at +25°C 0520 0006Technical dataMeas. range 0 to +100 %RH Oper. temp. -20 to +70 °C /-4 to +158 °FAccuracy ±2 %RH (+2 to +98 %RH) Storage temp. -40 to +80 °C/-40 to +176 °FAccuracy/Humidity: at rated temperature of +25°CTemperature compensation: 0.03%RH/°COutput/Humidity: 0 to 10 V/0 to 1 V/0 to 0.5 V, on requestMax. load: voltage output: RL greater than 10 KOhmPower supply: 18 to 28 V DC, 1.6 m cable for clampingA Pt100, DIN IEC 751, Cl. B in 4-wire version (connected), is available to measuretemperature

Notes49

50Differential pressure transmitter: the product line testo 6340Measuring 1 PapreciselyWolfgang Eiche,Product ManagerPa. Hats off to our highlyaccurate sensor!To be clear ofwhat 1 Padifferentialpressure means:our atmosphericpressure is100,000 Pa! Abutterfly flyingpast causes achange inpressure of 2.5Even the standard modeltesto 6342 possesseshighest stabilityPa0 PaTimetesto 6341/6343 haveabsolutely no zero pointdriftPaTimetesto 6341/6343 provideoptimum protectionagainst pressure peaksProcessComSoftRS4854...20 mAThe Trendows-Xp softwareenables convenient onlinemonitoring, see pages 88 – 90

51The testo 6340 product linetesto 6341 and 6343 - the high-end solutionamong the low ∆P transmitters• Zero point drift = 0 due to automatic zeroing• Very good long-term stability and reproduceability• No temperature dependency: thanks to the automatic zeroing,the zero point is regularly adjusted at process temperature• Overload-proof (at >130 % of the measurement range, themagnetic valves close; the sensor is ventilated on both sides• Optional display (testo 6343)testo 6341:0 to 10 Pa, with automatic zero pointadjustment, without displaytesto 6343:0 to 10 Pa, with automatic zero pointadjustment, with displaytesto 6342 and 6344 – the reliable transmittersamong the low ∆P transmitters• Very low zero point drift as well as very good long-termstability and reproducibility thanks to the optimizedsensor• Very low temperature dependency (temperaturecompensated sensor)• Optional display (testo 6344)testo 6342:0 to 50 Pa, without displaytesto 6344:0 to 50 Pa, with displaytesto 6349 – the variants of the above described typesOn the basis of the testo 6341 to 6344 instruments, allmeasurement ranges between -1000 mbar and +1000 mbar(also in other pressure units, e.g. in H 20 or bar), other pressureand wire connections, as well as an RS232 digital output and ametal housing (in testo 6341/43) are available on request. Forinstruments on the basis of the 6342/6344 technology, thesmallest customer-specific measurement range is -50...+50 Pa;instruments on the basis of the 6341/6343 technology can alsohave smaller measurement ranges, e.g. -10...+10 Pa.Freely selectable measurement ranges between-1000 mbar and + 1000 mbar-1000 mbar 0 mbar+1000 mbare.g. 4 mA = 0 hPa; 20 mA = +200 hPae.g. 4 mA = -500 mbar; 20 mA = +500 mbar-100.000 Pa 0 Pa +100.000 PaInductive sensorPressure connection P1Copper-beryllium membraneCoil L1Core with magnetic coating on bothsidesPressure connection P2The differential pressure sensor in the testo6340 transmitter operates completely withoutfriction and wear. A core, with a magneticcoating on both sides, is located in themiddle of the concentrically undulatingcopper-beryllium membrane. Any deflectioncauses sensitive changes in the inductancesof both coils L1 and L2. The smallestpressure differences in the sub-Pascal rangeare thus recorded.Coil L2

52testo 6340 – Highest stability even at lowest pressuresWhether cleanroom, greyroom, operating theatre or filling system:Lowest differential pressures between the different rooms or zones must be sustained in orderto avoid the in-flow of contaminated air.Continuous measurement and control of these low differential pressures are required(according to ISO 14644: 5 to 20 Pa).This must be proven annually in accordance with ISO 14644 (against zero potential andagainst neighbouring rooms).Supply air via HEPA/ULPA filterLaminar flowe.g. 0.5 m/sNormal zoneCritical zoneOuter zoneOutlet air: (50 to 500 airexchanges / h)Application: Maintenance of pressure in cleanroomsNormal operationtesto 6341/6343Highly accurate processes take place in cleanrooms.testo 6340 guarantees continuous positive pressure inthe lower Pascal range.Zero point stability plays a particularlyNormal zoneMeasurementtesto 6341/6343Critical zoneimportant role at lowest pressures (10 Pa or50 Pa measurement range).Automatic zero-pointadjustmentVentilationFunctionality of the automatic zero point adjustmentWhile conventional ∆P transmitters requirefrequent recalibration, the testo 6341/6343 isequipped with automatic zero pointadjustment. The solenoid valves vent bothsides of the pressure differential pressuresensor in an hourly cycle (or every 20 minutesfollowing start-up). Consequently, themicroprocessor automatically corrects thezero signal - highest stability is the result.testo 6342/44e.g. “filternotification”at ∆p>150 mbar(2,18 psi)Application: Monitoring filters in air ducts

53testo 6340 – Technical Data / Ordering Datatesto 6340Mains unit (rail mounting) 90to 264 VAC/ 24 VDC (2.5A)(0554 1749)RS485 for onlinemonitoring (cf. p. 88 - 90)with testo 54-7testo 6342To theprocess5 m silicone hose(0554 0440)24 VDC4 to 20 mA forregulation90...260 VAC2 x relay outputs(up to 300 V AC, 3 A)DISPLAY AND SWITCHtesto 54-2 AC (5400 7553) page 54testo 54-7 AC /5400 7555) incl. RS485Technical datatesto 6344Option LCD(testo 6343 only)testo 6341/6343Pa0 PaModel testo 6341/6343 testo 6342/6344Automatic zero-point yesnoadjustmentDisplay Only with testo 6343 Only with testo 6344Meas. range * 0 to 10 Pa (= 0.1 mbar/0.04 inch H 2O) 0 to 50 Pa (= 0.5 mbar/0.2 inch H 2O)Meas. ranges on request On request between -1000 mbar and +1000mbar (-14.5 psi and +14.5 psi)*On request between -1000 mbar and +1000mbar; minimum range -50 to +50 Pa *Usable measurement range -5% to +110 % of fsv -5% to +105 % of fsvMeasuring medium Air, non-aggressive gases Air, non-aggressive gasesHousing (ABS plastic) 6341: 120 x 122 x 85 mm 6342: 80 x 120 x 73 mm6343: 120 x 122 x 105 mm 6344:120 x 122 x 75 mmOverload200 times/from ∆P >_ 25 mbar (0.36 psi):6 bar (87 psi) overload10 times/from ∆p > 200 mbar (2.9 psi):2 bar (29 psi) overloadMeasurement inaccuracy 0.35 Pa + 0.5% of fsv 0.35 Pa + 0.6% of fsvZero point drift None (automatic zero point adjustment) 0.5 % of full scale value/yearHysteresis 0.1% of fsv 0.1% of fsvPower supply 24 VDC (20.5 to 28.5 VDC) 24 VDC (20.5 to 28.5 VDC)Output size Linear to differential pressure Linear to differential pressureOutput signal 4 to 20 mA (load max. 500 Ohm, at 20 VDC, 4wire) 0 to 20 mA/0 to 10 V can be adjusted;RS232 on requestTime constant/signal delayOper. temp.Storage temp.0/1/2.5/5/10/20/30/40 s can be adjustedstandard setting 2.5 s0 to +60 °C (32 to +140 °F)-10 to +70 °C (14 to +158 °F)4 to 20 mA (load max. 500 Ohm, at20 VDC, 4 wire)Can be set by factory if requiredstandard setting 2 s.0 to +60 °C (32 to +140 °F)-10 to +70 °C (14 to +158 °F)Protection classIP 65 with installed pressure and electriccablesIP65 with installed pressure and electric cablesCable screw connections 2 x PG9 2 x PG7Pressure connections 2 x d 6.5 for hoses ø 4 or 5 mm 2 x d 6.5 for hoses ø 4 or 5 mmWeight1000 g 6342: 300 g , 6344: 700 g* Measurement range cannot be altered locally, please define when orderingTimetesto 6341/6343 have absolutely no zero-point driftOrdering dataPart no.testo 6341 ∆P transmitter 0 to 10 Pa, automatic zeroing, without display 0555 6341testo 6342 ∆P transmitter 0 to 50 Pa, without display 0555 6342testo 6343 ∆P transmitter 0 to 10 Pa, automatic zeroing, with display 0555 6343Patesto 6344 ∆P transmitter 0 to 50 Pa, with display 0555 6344ISO calibration with 5 points (0/25/50/75/100/0 % of full scale value) 0520 0005ISO calibration at freely selectable points, 0 to 1 bar (0 to 14,5 psi)0520 0105Timetesto 6341/6343 provide optimum protection frompressure peaks5 m silicone hose 0554 0440testo 54-2 AC process display, 2 relay outputs (to 250 VAC/300 VDC, 3 A), mains supply:90 to 260 VAC5400 7553testo 54-7 AC process display, 2 relay outputs (to 250 VAC/300 VDC, 3 A), mains supply 90 to 260 VAC,RS485 output for online monitoring and with totalizer display, cf. pages 88 - 90 5400 7555Mains unit (desk-top) 110 to 240 VAC/24 VDC (350mA) 0554 1748Mains unit (rail mounting) 90 to 264 VAC/ 24 VDC (2.5A) 0554 1749

54testo Saveris – Measurement data monitoringIn industrial processes, exacttemperature and humidity valuesare crucial.In a number of applications, testoSaveris helps to collect thesevalues wirelessly by Ethernet, tostore them securely and topresent them. A selection ofalarms which can be usedflexibly, support those responsiblefor the system in keeping thevalues in the required range.Typical applications:• Monitoring of storage andproduction climate• Monitoring of humidity values,e.g in climate cabinets• Monitoring of temperatures,e.g. in heat treatment or inclimat cabinetsThe testo Saveris wireless probes standout thanks to their easy, fully automaticcommissioning and absolutely safetransfer of measurement data.The testo Saveris base saves allmeasurement values in its long-termmemory, and sends optical and audiblealarm reports, e.g. by SMS or as a popupon a running PC.The testo Saveris Ethernet probes areable to use the LAN infrastructure, andtransfer the measurement data safelyover large distances.Note on the radio frequencies868 MHz: EU countries andcertain other countries(e.g. CH, NOR)2.4 GHz: non-EU countries(country list can becalled up underwww.testo.com/saveris)The network-capable testo Saverissoftware offers a central overview of themeasurement data, and uninterrupteddocumentation.

55for climate applications in industrial processesSaveris set 1Set 1: 868 MHz, consisting of base0572 0120, 3 NTC radio probeswithout display 0572 1110, mains unitfor base 0554 1096 and SBE software0572 0180 incl. USB cableSet 1, 868 MHzPart no. 0572 0110Set 1: 2.4 GHz, consisting of base0572 0160, 3 NTC radio probeswithout display 0572 1150, mains unitfor base 0554 1096 and SBE software0572 0180 incl. USB cableSet 1, 2.4 GHzPart no. 0572 0150Saveris set 2Set 2: 868 MHz, consisting of base0572 0120, 5 NTC radio probes withdisplay 0572 1120, router 0572 0119,2 mains units for base and router 05541096 and SBE software 0572 0180incl. USB cableSet 2, 868 MHzPart no. 0572 0111Number fieldStart Edit Options TemplateSet 2: 2.4 GHz, consisting of base0572 0160, 5 NTC radio probes withdisplay 0572 1160, router 0572 0159,2 mains units for base and router 05541096 and SBE software 0572 0180incl. USB cableDataCopy OpenPaste RenameOrganizingClipboardCloseEditGroup 0DeleteOnlineOfflineOperating modeOnline startOnline stopControl measurementOnlineDayMonthEvaluationDiagramHistogramNumber fieldViewGraphicTableAlarmsSet 2, 2.4 GHzPart no. 0572 0151DataGroup 0°C°C°CGroup 1°C°C21 °C48 %RHSaveris set 3Set 3: 868 MHz, consisting of base0572 0121 incl. GSM module for SMSalarm, aerial with magnetic base 05540525, 5 NTC radio probes with display0572 1120, router 0572 0119, 2 mainsunits for base and router 0554 1096and SBE software 0572 0180 incl.USB cableSet 3, 868 MHzPart no. 0572 0112DataArchiveSystemAlarms41 °C22 %RH26 °C38 %RHSet 3: 2.4 GHz, consisting of base0572 0161 incl. GSM module for SMSalarm, aerial with magnetic base 05540525, 5 NTC radio probes with display0572 1160, router 0572 0159, 2 mainsunits for base and router 0554 1096and SBE software 0572 0180 incl.USB cableSet 3, 2.4 GHzPart no. 0572 0152

56testo Saveris System overviewtesto Saveris radio probetesto Saveris basetesto Saveris softwareProbe versions with internal and externaltemperature and humidity sensors allow theadaptation to every application. The radioprobes are available with or without a display asan option. The memory in the probe ensuresthat the measurement data is not lost in theevent of an interference in the radio link. Currentmeasurement data, the battery status and thequality of the radio link are shown in the display.The base is the heart of testo Saveris and cansave 40,000 readings per measurement channelindependent of the PC. This corresponds toaround one year of memory capacity at ameasuring rate of 15 minutes. The system dataand alarms are visible via the display of theSaveris base.The testo Saveris software offers simpleoperation and an intuitive user interface. TheSaveris software is available in two differentversions: as the basic version SBE (SmallBusiness Edition) or the PROF (Professional)software version with diverse additional options.If external access to the measurement data fromoutside the location is required, Internet accessfor the display of all measurement data can beset up.testo Saverisbasetesto Saverisradio probeEthernetUSB or Ethernettesto Saverissoftwaretesto Saverisradio probetesto Saverisradio probetesto Saveris radio probeOverview of software versionstesto SaverisrouterSimple installation and configurationDiagrams/tables/alarm overview/PDF reportsCalendar managementRepresentation of probe groupTransmission of alarms (e-mail, SMS, relay)Comprehensive alarm managementConstant monitoring in PC continuous operationMeasurement data on background photo of locationsIntegration into network (client-server)testo Saverisconvertertesto SaverisEthernet probetesto SaverisEthernet probetesto Saveris Ethernet probeSBEPROF• •• •• •• •• •••••testo Saveris Ethernet probeIn addition to the wireless probes, probes canbe used which are directly connectable to theEthernet. This allows the existing LANinfrastructure to be used, making data transferfrom the probe to the base possible, even overlong distances.By connecting a converter to an Ethernetsocket, the signal from a wireless probe can beconverted to an Ethernet signal. This combinesthe flexible positioning of a wireless probe withthe use of the existing Ethernet even over longtransfer distances.testo Saveris routerThe radio link can be improved or lengthenedwith poor structural conditions by using a router.Naturally several routers are possible in the testoSaveris system, but several routers are notconnected in series.Through the connection of a converter to anEthernet jack, the signal of a radio probe can beconverted into an Ethernet signal. Thiscombines the flexible connection of the radioprobe with the use of the existing Ethernet evenover long transmission paths.

57testo Saveris Components: Base, Router, Converter and accessoriesBasePart no.Saveris routerPart no.Saveris base, radio frequency 868 MHz 0572 0120Saveris base, radio frequency 868 MHz, GSM moduleintegrated (for SMS alarm) 0572 0121Saveris base, radio frequency 2.4 GHz 0572 0160Saveris base, radio frequency 2.4 GHz, GSM moduleintegrated (for SMS alarm) 0572 0161No mains units or aerials with magnetic base are contained in this ordering data.Power supplyPart no.Battery for radio probe (4 AA alkali manganese mignonbatteries) 0515 0414Battery for radio probe for use below -10 °C(4 Energizer L91 Photo lithium) 0515 0572100-240 V DC mains unitfor testo Saveris base, router, converter, Ethernet probe 0554 1096Mains unit (rail mounting) 90 to 264 VAC/ 24 VDC (2.5A) 0554 1749Saveris router, 868 MHz, radio transmission medium 0572 0119Saveris router, 2.4 GHz, radio transmission medium 0572 0159Saveris converterPart no.Saveris converter, 868 MHz, converts the radio transmissionmedium to Ethernet 0572 0118Saveris converter, 2.4 GHz, converts the radio transmissionmedium to EthernetNo mains units are contained in this ordering data.Software0572 0158Part no.SBE software, incl. USB connecting cable base-PC 0572 0180PROF software, incl. USB connecting cable base-PC 0572 0181Saveris adjustment software incl. connection cable for wirelessand Ethernet probes 0572 0183Measurement data view via Internet 0572 0184Mains unit (desk-top) 110 to 240 VAC/24 VDC (350mA) 0554 1748Other featuresPart no.Magnetic foot aerial with 3 m cable, for base with GSM module(not suitable for USA, Canada, Chile, Argentina, Mexico) 0554 0524Magnetic foot aerial (quadband) for base with GSM module 0554 0525Alarm module (visual + acoustic), can be connected to basealarm relay, diam. 70 x 164 mm, 24 V AC/DC or 320 mA,steady on: red, steady tone: buzzer approx. 2.4 kHz0629 6666ID-Nr. 0699 6111/1Progamming adapter ( from mini-DIN to USB) for Ethernetprobe and converter (necessary if no DHCP server available) 0440 6723Calibration CertificatesPart no.ISO calibration certificate/temperaturetemp. data logger; calibration points -18°C; 0°C; +60°C 0520 0151DKD calibration certificate/temperaturetemp. data logger; cal. points -20°C; 0°C; +60°C 0520 0261ISO cal. cert./humidityhumidity data logger; calibration points 11.3%RH and 0520 007675.3%RH at +25°C/+77 °F; per channel/instrumentDKD calibration cert./humidityhumidity data logger; cal. points 11.3%RH and 75.3%RH at 0520 0246+25°C; per channel/instrumentTechnical dataMemoryDimensionsWeightProtection classMaterial/HousingRadio frequencyPower supply (absolutelynecessary)Rech. batt.Oper. temp.Storage temp.DisplayInterfacesConnectable radio probeSaveris-Base40,000 values per channel (total max. 10,160,000 values)225 x 150 x 49 mmApprox. 1510 gIP42Diecast zinc / plastic868 MHz / 2.4 GHz6.3 V DC mains unit; alternatively via 24 V AC/DC plugin/screwterminals, power consumption < 4 WLi-ion battery (for data back-up and for emergency SMS ifpower supply fails)-10 to +50 °C-40 to +85 °Cgraphical display, 4 control keysUSB, radio, Ethernetmax. 15 probes can be directly connected via radio interface,max. 150 total via radio / router / converter / Ethernet, max.254 channelsTechnical dataDimensionsWeightPower supplyOper. temp.Storage temp.Material/HousingProtection classInterfacesConnectable radio probeWall bracketSaveris routerApprox. 85 x 100 x 38 mmApprox. 180 g6.3 V DC mains unit;alternatively via 24 V AC/DCplug-in/screw terminals,power consumption < 0.5 W-20 to +50 °C-40 to +85 °CPlasticIP54Radiomax. 5includedSaveris converterApprox. 85 x 100 x 35 mmApprox. 190 g6.3 V DC mains unit;alternatively via 24 V AC/DCplug-in/screw terminals,power consumption < 2 W-20 to +50 °C-40 to +85 °CPlasticIP54Radio, Ethernetmax. 15includedAlarm relaymax. 1 A, max. 30 W, max. 60/25 V DC/AC, NC or NO contactGSM module850 / 900 / 1800 / 1900 MHznot valid for Japan and South KoreaSet upTable base and wall bracket included

58testo Saveris Components: Radio probesProbe versions with internal and external temperature sensors and with humidity sensors allow the adaptation to every application. The radio probesare available with or without a display as an option. Current measurement data, the battery status and the quality of the radio link are shown in thedisplay.NTCinternal81 mmNTCinternal81 mm°C %RH, °CPtNTCTC100%RH NTCexternalexternalexternalinternal81 mm81 mmRadioSaveris T1Radio probe with internal NTCSaveris T2Radio probe with externalprobe connection and internalNTC, door contactSaveris T32-channel radio probe with 2external TC probe connections(Choice of TC characteristics)Saveris PtRadio probe with 1 externalPt100 probe connectionSaveris H3Humidity radio probeInternal sensorExternal probeProbe typeMeas. rangeAccuracyResolutionProbe typeMeas. range(Instrument)Accuracy (Instrument)NTC-35 to +50 °C±0.4 °C (-25 to +50 °C)±0.8 °C (remaining range)0.1 °CNTC-35 to +50 °C±0.4 °C (-25 to +50 °C)±0.8 °C (remaining range)0.1 °CNTC-50 to +150 °C±0.2 °C (-25 to +70 °C)±0.4 °C (remaining range)TC type K TC type J Pt100-195 to +1350 °C -100 to +750 °C -200 to +600 °CTC type T TC type S-200 to +400 °C 0 to +1760 °C±0.5 °C or 0.5% of mv at 25 °C±0.1 °C (0 to +60 °C)±0.2 °C (-100 to +200 °C)±0.5 °C (remaining range)NTC-20 to +50 °C±0.5 °C0.1 °C / 0.1 °C tdHumiditysensor0 to 100 %RH±3 %RH0.1%ResolutionConn.0.1 °CNTC via mini-DIN socket, doorcontact connection cableincluded in delivery (1.80 m)0.1 °C / TC type S 1 °C2 TCs via TC socket, max.difference in potential 2 V0.01 °C1 Pt100 via mini-DIN socketDimensions (housing):WeightBattery typeBattery lifeMaterial/HousingProtection classRadio frequencyMeasuring rateConformity with standardsOper. temp.Storage temp.Display (optional)Transmission distanceWall bracketIP6880 x 85 x 38 mmApprox. 240 g4 AA batteriesBattery life at +25 °C, 3 years; for freezer applications, 3 years with L91 Photo lithium Energizer batteriesPlasticIP68IP54IP68IP42868 MHz / 2.4 GHzStandard 15 min, 1 min to 24 h can be setDIN EN 12830-35 to +50 °C-20 to +50 °C-40 to +55 °CLCD, 2 lines; 7-segment with symbolsapprox. 300 m free field at a frequency of 868 MHz, approx. 100 m free field at a frequency of 2.4 GHzincludedOrdering data RadioPart no.Part no.Version without display868 MHz 2.4 GHzPart no.Part no.Version with display868 MHz 2.4 GHzSaveris T1 Radio probe with internal NTC0572 11100572 11500572 11200572 1160Saveris T2 Radio probe with external probe connectionand internal NTC, door contactSaveris T3 2-channel radio probe with 2 external TCprobe connections (Choice of TC characteristics)Saveris Pt Radio probe with 1 external Pt100 probeconnection0572 11110572 11510572 11210572 11610572 9112 0572 9152 0572 9122 0572 91620572 7111 0572 7151 0572 7121 0572 7161Saveris H3 Humidity radio probe 0572 6110 0572 6150 0572 6120 0572 6160The AA alkali manganese mignon batteries (0515 0414) are contained in this ordering data.

59testo Saveris Components: Ethernet probesThe existing LAN infrastructure can be used through the Ethernet probe. This allows the data transfer from the probe to the base, even over longdistances. Ethernet probes have a display.°C %RH, °CPt100TC%RH NTCexternaexternaexternalll%RH NTCexternal100 mm100 mmØ 12 mmØ 12 mmEthernetExternal probeProbe typeMeas. range(Instrument)Accuracy (Instrument)ResolutionConn.Dimensions (housing):WeightPower supply (absolutelynecessary)Buffer batteryMaterial/HousingProtection classMeasuring rateOper. temp.Storage temp.DisplayWall bracketOrdering data EthernetSaveris Pt EEthernet probe with externalPt100 probe connectionPt100-200 to +600 °Cat 25 °C±0.1 °C (0 to +60 °C)±0.2 °C (-100 to +200 °C)±0.5 °C (remaining range)0.01 °C1 Pt100 via mini-DIN socketApprox. 220 gSaveris T4 E4-channel Ethernet probe with4 external TC probeconnectionsTC type T-200 to +400 °CTC type KTC type S0 to +1760 °CTC type J-195 to +1350 °C -100 to +750 °C±0.5 °C or 0.5% of mvSaveris H2 EHumidity Ethernet probe 2 %Humidity sensor0 to 100 %RH*to 90 %RH: ±2 %RH> 90 %RH: ±3 %RHNTC-20 to +70 °C±0.5 °C0.1 °C / TC type S 1 °C 0.1% / 0.1 °C td 0.1 °CMini-DIN service interface is accessible externally4 TCs via TC socket, max.difference in potential 50 VSaveris H1 EHumidity Ethernet probe 1%Humidity sensor0 to 100 %RH*Approx. 85 x 100 x 38 mmApprox. 220 gApprox. 230 gApprox. 230 g6.3 V DC mains unit; alternatively via 24 V AC/DC plug-in/screw terminalsLi-ionPlasticIP542 s to 24h-20 to +70 °C-40 to +85 °CLCD, 2 lines; 7-segment with symbolsincludedto 90 %RH: ±(1 %RH +0.7 % of mv) at ±0.2 °C (0 to +30 °C)+25 °C±0.5 °C (remaining> 90 %RH: ±(1.4 %RH +0.7 % of mv) range)at +25 °C0.1% / 0.1 °C td0.1 °C*not for continuous high-humidity applicationsPart no.NTC-20 to +70 °CSaveris Pt E Ethernet probe with external Pt100 probe connection (With display) 0572 7191Saveris T4 E 4-channel Ethernet probe with 4 external TC probe connections (With display) 0572 9194Saveris H2 E Humidity Ethernet probe 2 % (With display) 0572 6192Saveris H1 E Humidity Ethernet probe 1% (With display) 0572 6191Progamming adapter ( from mini-DIN to USB) for Ethernet probe and converter (necessary if no DHCP server available) 0440 6723No mains units are contained in this ordering dataSintered caps for Saveris H1 E and H2 E Ethernet probesMetal protective cap (open), fast reaction time at flow velocities < 7 m/s (not suitable for dusty atmospheres), formeasurement in flow velocities of less than 10 m/sWire mesh filter, probe protection from coarse particlesTeflon sintered filter, Ø 12 mm, for corrosive substances, high humidity range (long-term measurements), high velocitiesStainless steel sintered filter, pore size 100 µm, probe protection in dusty atmospheres or higher flow velocities, formeasurements at high flow velocities or in contaminated airtesto saline pots for control and humidity adjustment of humidity probes, 11.3 %RH and 75.3 %RH with adapter for humidity probe, quickchecks or calibration of humidity probePart no.0554 07550554 07570554 07560554 06470554 0660

60testo Saveris Accessories: External temperature probesPt100Plug-in probesIllustrationMeas. rangeAccuracyt99Part no.Robust, Pt100 stainless steel food probe(IP65)125 mmØ4 mm15 mmØ3 mm-50 to +400 °C Class A (-50 to +300 °C),Class B (remaining range)10 s0609 2272Conn.Fixed cableRobust, waterproof Pt100immersion/penetration probe114 mmØ5 mm50 mmØ 3.7 mm-50 to +200 °C Class A (-50 to +300 °C),Class B (remaining range)12 s0609 1273Conn.: Fixed cableConnection cable for unlimited Pt100 stationary probes with screw terminals (4-wire technology)0554 0213TCPlug-in probesIllustrationMeas. rangeAccuracyt99Part no.Stationary probe with stainless steel sleeve,TC Type K40 mmØ6 mm-50 to +205 °C Class 2*20 s0628 7533Conn.: Fixed cable 1.9 mRobust air probe, T/C Type K115 mmØ4 mm-60 to +400 °C Class 2*25 s0602 1793Conn.: Fixed cable 1.2 mMagnetic probe, adhesive force approx. 20N, with magnets, for measurements on metalsurfaces, TC Type K35 mmØ 20 mm-50 to +170 °C Class 2*150 s0602 4792Conn.: Fixed cableMagnetic probe, adhesive force approx. 10 N,with magnets, for higher temp., formeasurements on metal surfaces, TC Type K75 mmØ 21 mm-50 to +400 °C Class 2*0602 4892Conn.: Fixed cable 1.6 mPipe wrap probe for pipe diameter 5 to 65mm, with exchangeable measuring head.Meas. range short-term to +280°C, TC TypeKPipe wrap probe with Velcro strip, fortemperature measurement on pipeswith diameter up to max. 120 mm,Tmax +120°C, TC Type KThermocouple with TC adapter, flexible,800mm long, fibre glass, TC Type K395 mm800 mmØ 1.5 mm20 mm-60 to +130 °C Class 2*5 s-50 to +120 °C Class 1*90 s-50 to +400 °C Class 2* 5 s0602 4592Conn.: Fixed cable 1.2 m0628 0020Conn.: Fixed cable 1.5 m0602 0644Thermocouple with TC adapter, flexible,1500mm long, fibre glass, TC Type K1500 mmØ 1.5 mm-50 to +400 °C Class 2* 5 s0602 0645Thermocouple with TC adapter, flexible,1500mm long, Teflon, TC Type K1500 mmØ 1.5 mm-50 to +250 °C Class 2* 5 s0602 0646500 mm-200 to +1000 °C Class 1* 5 s 0602 5792Immersion tip, flexible, TC Type KØ 1.5 mmImmersion measurement tip, flexible, formeasurements in air/exhaust gases (not1000 mm-200 to +1300 °C Class 1* 4 s 0602 5693suitable for measurements in smelters), TCØ3 mmType K*According to standard EN 60584-2, the accuracy of Class 1 refers to -40 to +1000 °C (Type K), Class 2 to -40 to +1200 °C (Type K), Class 3 to -200 to +40 °C (Type K).NTCPlug-in probesIllustrationMeas. rangeAccuracyt99Part no.Stub probe, IP 5435 mmØ3 mm-20 to +70 °C ±0.2 °C (-20 to +40 °C) 15 s±0.4 °C (+40.1 to +70 °C)0628 7510Stationary probe with aluminium sleeve, IP 6540 mmØ6 mm-30 to +90 °C ±0.2 °C (0 to +70 °C)±0.5 °C (remaining range)190 s0628 7503*Conn.: Fixed cable 2.4 mAccurate imm./pen. probe, 6m cable, IP 6740 mmØ3 mmØ3 mm-35 to +80 °C ±0.2 °C (-25 to +74.9 °C)±0.4 °C (remaining range)5 s0610 1725*Conn.: Fixed cable 6 mAccurate immersion/penetration probe,cable: 1.5 m long, IP 6740 mmØ3 mmØ3 mm-35 to +80 °C ±0.2 °C (-25 to +74.9 °C) 5 s 0628 0006*±0.4 °C (-35 to -25.1 °C)±0.4 °C (+75 to +80 °C) Conn.: Fixed cable 1.5 mWall surface temperature probe, e.g.to prove damage in building material-50 to +80 °C ±0.2 °C (0 to +70 °C)20 s0628 7507Conn.: Fixed cable 3 mStainless steel NTC food probe (IP65) withPUR cable125 mmØ 4 mm15 mmØ3 mm-50 to +150 °C 2) ±0.5% of mv (+100 to +150 °C) 8 s 0613 2211*±0.2 °C (-25 to +74.9 °C)±0.4 °C (remaining range) Conn.: Fixed cable 1.5 mWaterproof NTC immersion/penetrationprobe115 mmØ5 mm50 mmØ4 mm-50 to +150 °C ±0.5% of mv (+100 to +150 °C) 10 s 0613 1212±0.2 °C (-25 to +74.9 °C)±0.4 °C (remaining range) Conn.: Fixed cable 1.2 mPipe wrap probe with Velcro for pipe diameterto max. 75 mm, Tmax. +75°C, NTC300 mm30 mm-50 to +70 °C ±0.2 °C (-25 to +70 °C)±0.4 °C (-50 to -25.1 °C)0613 4611Conn.: Fixed cable 1.5 mThe specified accuracy class of the Saveris radio and Ethernet probe is achievedusing these external probes.* Probe tested to EN 12830 for suitability in the transport and storage sectors2) Long-term meas. range +125°C, short-term +150°C (2 minutes)

61testo Saveris Examples of applicationsDocumentation and alarmsDuring production and quality assurance, temperatures and humidityvalues must be recorded in many applications using a monitoringsystem:· Heating cabinets· Refrigerators· Conditioning chambers/cabinet· Storage climate· Production climate...When limit values are exceeded, an alarm should be issued; in additionthe data should be safely stored and centrally compiled into reports forevaluations and proof. testo Saveris is ideally suited for theserequirements.Avoiding incorrect humidity values in productionand storageReiner Lippert, Technical DirectorTechnocell Dekor GmbH & Co. KG“With the testo Saveris measurement system, I amcertain the the storage of our valuable products isalways performed in the appropriate climate. I amimmediately alarmed in the event of a breach of limitvalues.”Protect valuable investmentsWhen storing sensitive goods, like in the area of server rooms, it isimperative to ensure ideal temperatures (and often also humidity values).testo Saveris monitors the limit values, sends an SMS or e-mail in theevent of an alarm and centrally saves all values.Thanks to the radio probes, no complex cabling is required. Alternatively,Ethernet probes are also available that rely on the existing IT network forthe transmission.Recording of series of measurements· in Research & Development· in Production & Quality assuranceJan Konietzny, Head of Department forProduct Development, Irmscher Automobilbau GmbH & Co. KG“With testo Saveris, I have the perfect overview overall temperature and humidity data in processes andin the environment. This saves valuable time.”

62Stationary temperature measurementNo competentcustomer servicewithoutconsultation!ClemensHaberstroh,Product ManagerStationaryMeasurementTechnologyTesto of coursemanufacturesstandardmeasurementtransmitters andtemperatureprobes which areself-explanatory,but ourexperience isoften helpful infinding thespecifically rightsolution.Whether in the field ofmeasurement transmitters orstationary temperature probes:speak to us about your individualproduct wishesStandard probes, specialmade-to-measure probes,the individual completesolutionYour choice of wires andfittingsBecause of the wide range oftypes, finding the righttemperature probe to meet thedemands of the process quicklyand easily, is usually very difficult.The selection help “Testo celsius”on Testo’s homepage soves thisproblem in a particularlycustomer-friendly way, by guidingthe user through the selctionpossibilities with simple questions.Displays, alarms, networkingwith the processdisplays testo 54Process:4 to 20mAComSoftRS485The configurator can be found atwww.testo-celsius.comJust click in!Online monitoring forcontinuous storage andcontrol

63Selecting the right type of standard probeTesto offers a wide range of standard temperature probes. Use the characteristics listed below to choose the one that is suitable for yourprocess media:in airin gasesin liquidson surfacesnon-aggressive gasesType 04 (p.66)Process temperature probe, fixed lineconnection, very small probe shaftdiameter possible.aggressivemediaType 09 (p. 68)Sheathed thermocouple probe, with TCconnector for extremely rapidtemperature recording. Probe materialInconelType 02 (p. 66)Cable probe, probe shaft diameter 3mm, connected directly to the signal line.Type 15 (p. 70)Screw-on surface TC probe (metal ring)thermocouple Type KType 11 (p. 68)Robust process temperature probe.Connected via plug-in connection(connector Tmax 80 °C/176 °F))aggressivemediaType 10 (p. 68)Robust process temperature probe withprecision coupling (Tmax. 200 °C/392°F)).Type 03 (p. 66)Cable probe, probe shaft diameter 6mm, connected directly to the signal line.Type 17 (p. 70)Rapid-response surface probe (crossbandwith probe shaft), thermocoupletype K, also for rough surfacesType 20 (p. 72)Ambient temperature probe, plastichousing (also available with integratedtransmitter)aggressivemediaType 08 (p. 66)Immersion probe for extremelyaggressive media, probe shaft and lineinsulation PFA Tmax. 260°C/500 °F, IP67Type 04 (p. 66)Cable probe. Fixed line connection, verysmall probe shaft diameterType 18 (p. 70)Robust surface probe (cross-band), withthread M12x1, thermocouple Type K,also for rough surfacesType 23 (p. 72)Air duct temperature probeType 14 (p. 70)Screwed probe (thread at front) for hardto-reachmeasuring points. Pressuretightup to 500 bar (7252 psi)Type 06 (p. 66)Immersion probe with connecting head,not for use as transmitter (connectionclamps to loop through signal)Type 19 (p. 72)Magnetic surface probe (cross-band)with PTFE handle, thermocouple Type K,also for rough surfacesType 24 (p. 72)Cold store and storage roomtemperature probe, with terminals in IP65housingType 30 (p. 74)Protection sheath with connecting head(for insert type 31)Type 12 (p. 68)Immersion probe with screw threadM8x1, metal precision plug-in coupling(Tmax. 200°C/392 °F), pressure-tight to500 bar.Type 21 (p. 72)Rapid-response surface probe (crossband)flush front thread M 14x1.5 withlock nuts, thermocouple Type K, also forrough surfacesType 31 (p.74)Insert with terminals or transmitter (forprotection sheath type 30)Type 13 (p. 68)Robust immersion probe with threadM8x1, plug-in connection secured bymeans of thread, connecting line (Tmax.80 °C/176 °F), pressure-tight to 500 bar.Temperature probe selection made easy: www.testo-celsius.com

64Selection of the probe components and output devicesThis brochure will help you find the right solution quickly. The entire measurement process (from probe to signal output/display) has beenbroken down into six components (1-6), as the following graphic shows. Each component is assigned a colour that is always used for thatcomponent throughout the brochure.The six components of the temperature probe solution: Probe and sensor elementSignal line and insulationSignal output Probe shaftOpen wire endsTransmittertesto 54 display and control units.Display, switching, onlinelogging Screw connectionsPlug-in connectionstesto handheld units andoffline loggers- See below forguides - Guides: The quickest way of finding the right solution for components 1, 2 and 3StartStandard probesCustom probesProbe request formIf no standard probe is suitableSpecify hereStandard probesuitableDetail selection ofcustom probesStandard probe optionsAdvice on selecting stationary probesDetail selection of standard probes with selection advice

65Custom temperature probesCustom temperature probesDo none of the standard temperature probes shown meet your requirements? Or do you already have a clear idea of what your solutionshould look like? Then open the flap behind page 83 (probe enquiry). Your selection will be assisted by the help and advice offered on pages80-83. Return the completed probe enquiry to our specialists or ask for advice from our sales team. We will design the stationary probe toyour specific measuring requirement. Some examples are shown on this page.Example from mechanical engineeringIn order to create a secure fitting between a gear wheel and a shaft,the gear wheel is heated in a furnace until it has reached a certaintemperature. The gear wheel is then fitted onto the shaft, to whichthey remain securely joined after cooling down (so-called shrink fit).During this process, the temperature of the gear wheel is checked,for example using a temperature probe attached to a robot arm, inorder to achieve optimum results.The spring-loaded tip of the probe ensures optimal contact.Stationary surface probe with spring-loaded tipMeasuring range -230 to +280 °C(-328 to +536 °F)Special castingT/C Type KMeasuring objectGlass fibre-insulatedcompensating lineStainless steel internal threadCeramic shaftSpring-loaded tipGear wheels are shrunk ontoshaftsSurface measurement inproduction linesMeasuring probe for immersion in waterSimilar to type 03standard probe100 m PUR connectinglineTemperature measurement in very deep waterand liquids (lakes, seas and tanks)Example from chemistry and researchThis stationary probe can be immersed in liquid to a depth of100 metres. This means that temperature layers in seas, lakes andeven tanks can be recorded. The special probe shaft, the weight andthe connected compensating line are very robust in design. Thechoice of sensor and thermal conduction paste allows precisemeasurement even with rapid changes in position.Weight (500 g)Raw material explorationTanksThermocouplesensorThermal conductive pasteClimate and marine researchMeasurement probes for immersion in water 0699 4153Example from automotive engineeringRecording the temperature of brake disks during travel demands veryrobust materials. It is also extremely important to have excellentcontact with the measuring object so that the actual temperature isrecorded. This requirement is met optimally by soldering thethermocouple wire into a nickel turned part by means of a flush frontsolder.Temperature probe for measuring the brake disc temperatureAll nickel for a long life of up to4,000 kmMeasuring objectProbe data• Type K (class 1) thermocouple• All-nickel turned part• Tmax 400 °C (752 °F)• Glass fibre-insulated steel wirebraidedsignal lineTemperature probe for measuring brake disctemperature0699 3472The thermoelectric wires are soldered in. The solder isdirectly on the measuring object to guaranteeoptimum temperature recordingApplicationMeasuring brake disctemperature during travelTemperature probe selection made easy: www.testo-celsius.com

66Overview of probe types 02 / 03 / 04 / 06 / 08Standard temperature probes can be tailored to your own specific measuring requirements. Just choose the relevant options. You can usethe slection assistance to help you choose the options.Type 02 Cable probe, probe shaft (Ø 3 mm), connected directly to the lineIP 67 1.430540 ±1Insulated silicone connecting line, standard length 2m70 ±2Ø 6 mmProbe shaft Ø 3 mmTemperature range: Pt100/Type K/Type J:-50 to +180 °C(-58 to +356 °F)NTC: -50 to +150 °C(-58 to +302 °F)Fixed e.g. by clamp screwconnectionProcess: liquidsType 03Cable probe, probe shaft (Ø 6 mm), connected directly to the lineIP 67 1.4571/1.4403Temperature range:Pt100/Type K/Type J:-50 to +180 °C(-58 to +356 °F)NTC: -50 to +150 °C(-58 to +302 °F)Fixed e.g. by screwed bushInsulated silicone connecting line, standard length 2 m Probe shaft length from 48 (±2)Probe shaft Ø 6 mmProcess: liquidsType 04Process temperature probe, probe shaft (Ø very small), connected directly to the lineIP 42 1.4305/nickel-plated CuZnInsulated PVC connecting line, standardlength 2 m40Ø 3Probe shaft on Pt100 made from1.4571/1.4403 Sheathed thermocouple Inconel(2.4860)Probe shaft length 100 ±5Probe shaft Ø 0.25 to 3 mm (for TC)Temperature range: Pt100: -50 to +400 °C(-58 to +752 °F)TC Type K: -200 to +1200 °C(-328 to +2192 °F)TC Type J: -200 to +700 °C(-328 to +1292 °F)NTC: -50 to +150 °C(-58 to +302 °F)Liquids and gasesFixed e.g. by clamp screw connectionType 06Immersion probe for monitoring in containers, pipelines etc., with connecting headTemperature range: cf. Type 0456Tmax 80 °C (176 °F)57Diecast aluminium connecting head*Protection class IP 54Probe shaft on Pt100 made from 1.4571/1.4403WAF 12Sheathed thermocouple Inconel (2.4860)PG 9Probe shaft length100 ±5Probe shaft Ø 3 or 6 mmConnecting head withclamps (not possiblewith transmitter), cf. p.66 - 67Process: liquidsFixed e.g. by clampscrew connectionType 08Immersion probe for extremely aggressive media, max. temperature +260 °C (+500 °F), IP67Temperature range: Pt100: -50 to +260 °C(short-term to +300 °C)(-58 to +500 °F, +572 °F)PFA insulationIP 67PFAConnecting lineLength 2 m=standardProbe shaft length60 ±2Probe shaft Ø 5 mmAggressive liquids

67Ordering information for types 02 /03 /04 /06 /08Selection advice: Light-blue fields cannot be combined with dark-blue fieldsOrder no.6000 6000 6000 6000 60000000 0000 0000 0000 0000Type 02 Type 03 Type 04 Type 06 Type 08Measuring sensors:Pt100 class BPt100 class APt100 1/3 class BPt100 1/10 class BType K (NiCr-Ni) class 1Type K (NiCr-Ni) class 2Type J (Fe-CuNi) class 1Type J (Fe-CuNi) class 2NTC 5 kOhm (e.g. for testo handheld units)NTC 10 kOhm (e.g. for testo 171 logger)Probe shaft Ø:Ø 0.25 mmØ 0.5 mm (for TC only)Ø 1.0 mmØ 1.5 mmØ 1.6 mm (Pt100 class B only)Ø 3.0 mmØ 5.0 mmØ 6.0 mm (for Type 06 Pt100 and NTC only)A 01 A 01 A 01 A 01A 02 A 02 A 02 A 02 A 02A 03 A 03 A 03 A 03A 04 A 04 A 04 A 04A 05 A 05A 06 A 06 A 06 A 06A 07 A 07A 08 A 08 A 08 A 08A 09 A 09 A 09 A 09A 10 A 10 A 10 A 10B 01B 02B 03B 04B 05B 06 B 06 B 06B 09 B 09B 08Please refer to page 80for more information onmeasuring sensors andranges.Probe shaft length48 mm60 mm70 mm100 mm200 mm300 mm400 mm500 mmPlease indicate other probe shaft lengths in mmC 03 C 03 C 03C 04 C 04 C 04 C 04C 05 C 05 C 05 C 05C 06 C 06 C 06C 08 C 08 C 08C 09 C 09 C 09C 10 C 10 C 10C 11 C 11 C 11C 99 C 99 C 99Please refer to page 81when selecting probeshaft length.Connecting line for Pt100 and NTCInsulated PVC, Ø 4.5 mm, 4 x 0.14 mm 2Insulated PVC, shielded, Ø 5 mm, 4 x 0.14 mm 2Insulated silicone, Ø 4.5 mm, 4 x 0.25 mm 2Insulated FEP, Ø 4 mm, 4 x 0.22 mm 2 , shieldedInsulated glass fibre, external wire braiding, Ø 4.5 mm, 4 x 0.25 mm 2Insulated PFA, Ø 4 mm, 4 x 0.25 mm 2Connecting line for thermocoupleInsulated PVC, Ø 4 mm, 2 x 0.22 mm 2Insulated PVC, shielded, Ø 5 mm, 2 x 0.25 mm 2Insulated silicone, Ø 4 mm, 2 x 0.25 mm 2Insulated FEP, Ø 4.5 mm, 2 x 0.22 mm 2Insulated glass fibre, external wire braiding, Ø 3.6 mm, 2 x 0.22 mm 2D 01 D 01 D 01D 02 D 02 D 02D 03 D 03 D 03D 04 D 04 D 04D 05 D 05 D 05D 06 D 06 D 06 D 06D 11 D 11 D 11D 12 D 12 D 12D 13 D 13 D 13D 14 D 14 D 14D 15 D 15 D 15Please refer topages 81-82 for moreinformation.Please indicate length of line (standard = 2 m)E___m E___m E___mE___mMiscellaneous (omit code, if not selected):Pt100, NTC “vibration-proof” in thermal conductive paste, Tmax = 200 °C (+392 °F)Metal antikink springConnector (for open wires: omit code “G”)8-pin DIN connector on testo instrument (not for TC)Miniature TC connectorMiniature TC couplingTC connectorTC couplingPrecision plug-in connector for testo 171, (only with Code A10)DIN round connector Pt100/NTCDIN round connector TC, 8-pin, with reference junction for type K onlyF 01 F 01 F 01 F 01 F 01F 02 F 02 F 02G 02 G 02 G 02 G 02G 03 G 03 G 03G 04 G 04 G 04G 05 G 05 G 05G 06 G 06 G 06G 07 G 07 G 07G 08 G 08 G 08 G 08G 09 G 09 G 09Please refer topages 77 - 82 for moreinformation on plug-inconnections.Sample order: Order code 6000 0000/Type 04/A 05/B 02/C 99/600/D 12/E 2.5 m/G 03Process temperature probe type 04, TC type K, class 1, Ø 0.5 mm, probe shaft 600 mm, 2.5 m long cable (PVC shielded), mini TC connectorTemperature probe selection made easy: www.testo-celsius.com

68Overview of probe types 09 /10 /11 /12 /13The standard temperature probes can be tailored to your own specific measuring requirements. Just choose the relevant options. You canuse the selection assistance to help you choose the options.Type 09Sheathed thermocouple probe, with TC connector for extremely rapid temperaturerecording. Probe shaft material InconelMiniature TC connectorTmax +200 °CSheathed thermocoupleInconel (2.4860)Insulated measuring pointTemperature range:TC Type K: -200 to +1000 °C(-328 to +1832 °F)TC Type J: -200 to +700 °C(-328 to +1292 °F)Fixed e.g. by means ofscrewed bush1621Probe shaft length100 ±5Probe shaft Ø 0.5...3 mmMax. bend radius 15xdMini TCconnectorAccessory: miniTC couplingcodeG 03 (page 52)Type 1011.5Process temperature probe with precision coupling (Tmax. 200 °C). Probe shaft materialInconelPrecision coupling withlock Tmax +200 °CProbe shaft length40 100 ±5Probe shaft on Pt100 made from 1.4571/1.4403Sheathed thermocouple Inconel (2.4860)Probe shaft Ø 0.5... ..3 mmTemperature range: Pt100: -50 to +400 °C(-58 to +752 °F)TC Typ K: -200 to +1000 °C(-328 to +1832 °F)TC Typ J: -200 to +700 °C(-328 to +1292 °F)Fixed e.g. by screwed bushPrecision couplingAccessory:precision connector0220 0352Type 11Process temperature probe, connected via plug-in connection (connector Tmax 80 °C)Temperature range:Pt100: -50 to +400 °C(-58 to +752 °F)Ø 7Plug-in connection IP 67IP 67 Tmax +80 °C1.4571/1.4403Plug-in connection securedby means of threaded sleeveConnecting lineinsulated PUR, standard length 2 m21Probe shaft length100 ±2Probe shaft Ø 3 mmFixed e.g. by clamp screw connectionType 12Immersion probe with internal thread M 8x1, pressure tight to 500 barPrecision plug-in connection with lockTmax +200 °C, mating connector (accessory) code G071.4305Thread M 8x1Wrench size 171.4571/1.4403Temperature range: Pt100: -50 to +400 °C(-58 to +752 °F)NTC: -50 to +150 °C(-58 to +302 °F)Internal precision couplingØ 1742Probe shaft length40 ±2Installation length50 ±2Probe shaft 3 mmPrecision connector,accessory 0220 0352Type 13Immersion probe with thread M 8x1, plug-in connection secured via thread, connectingline, pressure tight to 500 barPlug-in connectionIP 67 Tmax +80 °CConnecting lineinsulated PUR, standard length 2 m Screw M 8x1 Wrench size 131.430542 +0.2Probe shaft length40 ±2Installation length50 ±21.4571/1.4403Probe shaft Ø 3 or 4 mmTemperature range:Pt100: -50 to +400 °C(-58 to +752 °F)NTC: -50 to +150 °C(-58 to +302 °F)Plug-in connection secured bymeans of thread

69Ordering information for probe types 09 /10 /11 /12 /13Selection advice: Light-blue fields cannot be combined with dark-blue fieldsOrder no.6000 6000 6000 6000 60000000 0000 0000 0000 0000Type 09 Type 10 Type 11 Type 12 Type 13Measuring sensors:Pt100 class BPt100 class APt100 1/3 class BPt100 1/10 class BType K (NiCr-Ni) class 1Type K (NiCr-Ni) class 2Type J (Fe-CuNi) class 1Type J (Fe-CuNi) class 2NTC 5 kOhm (e.g. for testo hand-held instruments)NTC 10 kOhm (e.g. for testostor 171 logger)A 01 A 01 A 01 A 01A 02 A 02 A 02 A 02A 03 A 03 A 03 A 03A 04 A 04 A 04 A 04A 05 A 05A 06 A 06A 07 A 07A 08 A 08A 09 A 09 A 09 A 09A 10 A 10 A 10 A 10Please refer to page 80for more information onmeasuring sensors andranges.Probe shaft Ø:Ø 0.5 mmØ 1.0 mm(only for TC)Ø 1.5 mmØ 1.6 mm (Pt100 class B only)Ø 3.0 mmØ 4.0 mmØ 5.0 mmB 02 B 02B 03 B 03B 04 B 04B 05B 06 B 06 B 06 B 06 B 06B 07 B 07B 08 B 08Probe shaft length40 mm100 mm200 mm300 mm400 mm500 mmPlease indicate other probe shaft lengths in mmConnecting line for Pt100 and NTCInsulated PUR with free end, length 2.0 mInsulated PUR with free end, length 5.0 mInsulated PUR with free end, length 7.5 mInsulated PUR with free end, length 10.0 mMiscellaneous (omit code, if not selected):Pt100, NTC “vibration-proof” in thermal conductive paste, Tmax = 200 °C (+392 °F)C 02 C 02 C 02 C 02 C 02C 06 C 06 C 06 C 06 C 06C 08 C 08 C 08 C 08 C 08C 09 C 09 C 09 C 09 C 09C 10 C 10 C 10 C 10 C 10C 11 C 11 C 11 C 11 C 11C 99 C 99 C 99 C 99 C 99D 07 D 07D 08 D 08D 09 D 09D 10 D 10F 01 F 01 F 01 F01Please refer to page 81when choosing theprobe shaft length.Please refer topages 81/82 for moreinformation.Connector (for open wires: omit code “G”)8-pin mini DIN connector on testo instrument (not for TC)Precision plug-in connector (for testo 171 only, Code A10)DIN round connector Pt100/NTCG 02 G 02G 07** G 07**G 08 G 08Please refer to pages 77- 82 for moreinformation on plug-inconnections.Sample order: Order code type 6000 0000/Type 12/A 03/B 06/C 11Probe type 12 with precision coupling Pt100, 1/3 class B, probe shaft Ø 3 mm, 500 mm length** no coupling, withconnector onlyTemperature probe selection made easy: www.testo-celsius.com

70Overview of probe types 14 /15 /17 /18The standard temperature probes can be tailored to your own specific measuring requirements. Just choose the relevant options. You canuse the selection assistance to help you choose the options.Type 14Screwed probe for hard-to-reach measuring points, pressure tight to 500 barTemperature range:Pt100/NTC: -50 to +80 °C(-58 to +176 °F)IP 42WAF 101.43059M 6Insulated PVC connecting lineStandard length = 2 m 24Type 15Screw-on surface T/C probe (metal ring)Temperature range:TC Type K/Type J:-200 to +400 °C(-328 to +752 °F)1.43051.5 mm high4.28Insulated glass fibre thermocoupleStandard length = 2 mType 17Surface probe (cross-band) with probe shaftTemperature range:TE Typ K: -50 to +180 °C/-58 to +356 °F(short-term 5 sec. to +400 °C/+752 °F)Connecting lineinsulated PUR, standard length 2m1.4571 1.43056 mmProbe shaft length200 ±53010Fixed e.g. by clamp screwconnection with Teflon clamp ringfor repeated positional adjustmentType 18Surface probe (cross-band) with thread M 12x1 (e.g. robot arm)Temperature range: cf. Type 17M 12x1Nickel-plated CuZn12Internal threadInsulated silicone connecting lineStandard length = 2 m1831.5Measuring objectMeasuring object Measuring object Measuring objectAssembly line

71Ordering information for types 14 /15 /17 /18Selection advice: Light-blue fields cannot be combined with dark-blue fieldsOrder no.6000 6000 6000 60000000 0000 0000 0000Type 14 Type 15 Type 17 Type 18Measuring sensors:Pt100 class BPt100 class APt100 1/3 class BPt100 1/10 class BType K (class 1)Type K (class 2)Type J (class 1)NTC 5 kOhm (e.g. for testo hand-held instruments)NTC 10 kOhm (e.g. for testostor 171 logger)A 01A 02A 03A 04A 09A 10A 05A 07A 06 A 06Please refer to page 80for more information onmeasuring sensors andranges.Probe shaft length100 mm200 mm300 mm400 mm500 mmPlease always indicate other probe shaft lengths in mmC 06C 08C 09C 10C 11C 99Please refer to page 81when choosing theprobe shaft length.Connecting line for Pt100 and NTCInsulated PVC, Ø 4.5 mm, 4 x 0.14 mm 2Insulated PVC, shielded, Ø 5 mm, 4 x 0.14 mm 2Insulated silicone, Ø 4.5 mm, 4 x 0.25 mm 2Insulated FEP, Ø 4 mm, 4 x 0.22 mm 2 , shieldedInsulated glass fibre, external wire braiding, Ø 4.5 mm, 4 x 0.25 mm 2Insulated PFA, Ø 4 mm, 4 x 0.25 mm 2Connecting line for thermocoupleInsulated PVC, Ø 4 mm, 2 x 0.22 mm 2Insulated PVC, shielded, Ø 5 mm, 2 x 0.25 mm 2Insulated silicone, Ø 4 mm, 2 x 0.25 mm 2, shieldedInsulated FEP, Ø 4 mm, 2 x 0.22 mm 2Insulated glass fibre, external wire braiding, Ø 3.6 mm, 2 x 0.22 mm 2D 01D 02D 03D 04D 05D 06D 11 D 11D 12 D 12D 13 D 13D 14 D 14D 15* D 15 D 15Please refer topages 81/82 for moreinformation.Please indicate length of line (standard = 2 m)Miscellaneous (omit code, if not selected):Pt100, NTC “vibration-proof” in thermal conductive paste, Tmax = 200 °C (+392 °F)Metal antikink springE___m E___m E___m E___mF 01F 02 F 02 F 02Connector (for open wire ends: omit code “G”)8-pin mini DIN connector on testo instrument (not for TC)Miniature TC connectorMiniature TC couplingTC connectorTC couplingPrecision plug-in connector (for testo 171, Code A10)DIN round connector Pt100/NTCDIN round connector TC, 8-pin, with reference junction for type K onlyG 02G 07G 08G 03 G 03 G 03G 04 G 04 G 04G 05 G 05 G 05G 06 G 06 G 06G 09 G 09 G 09Please refer topages 77 - 82 for moreinformation on plug-inconnections.Sample order: Order code 6000 0000/Type 18/A 06/D 11/E 2.0/G 03Surface probe type 18 with sensor TC type K, class 2 and internal thread, PVC connecting line (length 2.0 m) and mini TC connector*without external wirebraidingØ oval 1.8 x 1.2 mm,2 x 0.2 mmTemperature probe selection made easy: www.testo-celsius.com

72Overview of probe types 19 /20 /21 /23 /24The standard temperature probes can be tailored to your own specific measuring requirements. Just choose the relevant options. You canuse the selection advice to help you choose the options.Type 19Magnetic surface probe (cross-band) with PTFE handlePTFE handleHousingmade from aluminiumTemperature range: TC Type K: -50 to +180 °C(-58 to +356 °F)Ø 20PTFE handleInsulated silicone connecting lineStandard length = 2 m 37MagnetType 20Ambient temperature probe, plastic housing, cast probeTemperature range: Pt100/NTC: -50 to +80 °C(-58 to +176 °F)For outdoor installation = inshade of roof, line from belowIndoor versionopen (Code F51)Burner(Code F50)8585Design height 33 mmLineAlso available withbuilt-in transmitter*55*55* In housing:Connecting terminalsfor cable connectionsType 21Surface probe (cross-band), flush front thread M 14x1.5 with lock nutsWAF 22 M 14x1.51.4305Temperature range: TC Type K: -50 to +180 °C(-58 to +356 °F)Fixing with lock nuts(included)Insulated silicone connecting lineStandard length = 2 m 31.5Type 23Air duct temperature probeConnecting lineLength 2 m1.4571/1.4403Temperature range: Pt100/Type K/Type J:-50 to +400 °C(-58 to +752 °F)NTC: -50 to +150 °C(-58 to +302 °F)6AirFixed by screwed bush200Type 24Cold store and storage room temperature probe, with terminals in IP65 housingTemperature range: Pt100/NTC: -40 to +70 °C(-40 to +158 °F)1.4571/1.4403Design height 45 mm53650 55

73Ordering information for probe types 19 /20 /21 /23 /24Selection advice: Light-blue fields can not be combined with dark-blue fieldsOrder no.6000 6000 6000 6000 60000000 0000 0000 0000 0000Measuring sensors:Pt100 class BPt100 class APt100 1/3 class BPt100 1/10 class BType K (class 1)Type K (class 2)Type J (class 1)Type J (class 2)NTC 5 kOhm (e.g. for testo hand-held instruments)NTC 10 kOhm (e.g. for testostor 171 logger)Probe shaft Ø:Ø 4.0 mmØ 5.0 mmØ 6.0 mm (Pt100 only)Type 19 Type 20 Type 21 Type 23 Type 24A 01 A 01 A 01A 02 A 02 A 02A 03 A 03 A 03A 04 A 04 A 04A 05A 06 A 06 A 06A 07A 08A 09 A 09 A 09A 10 A 10 A 10B 07B 08B 09 B 09Please refer to page 80for more information onmeasuring sensors andranges.Probe shaft length40 mm200 mmPlease indicate other probe shaft lengths in mmC 08C 99C 02Please refer to page 81when choosing theprobe shaft length.Connecting line for Pt100 and NTCInsulated PVC, Ø 4.5 mm, 4 x 0.14 mm 2Insulated PVC, shielded, Ø 5 mm, 4 x 0.14 mm 2Insulated silicone, Ø 4.5 mm, 4 x 0.25 mm 2Insulated FEP, Ø 4 mm, 4 x 0.2 mm 2 , shieldedInsulated glass fibre, external wire braiding, Ø 4.5 mm, 4 x 0.25 mm 2Insulated PFA, Ø 4 mm, 4 x 0.25 mm 2Connecting line for thermocoupleInsulated PVC, Ø 4 mm, 2 x 0.22 mm 2Insulated PVC, shielded, Ø 5 mm, 2 x 0.25 mm 2Insulated silicone, Ø 4 mm, 2 x 0.25 mm 2 , shieldedInsulated FEP, Ø 4 mm, 2 x 0.22 mm 2Insulated glass fibre, external wire braiding, Ø 3.6 mm, 2 x 0.22 mm 2D 01 D 01D 02 D 02D 03 D 03D 04 D 04D 05 D 05D 06 D 06D 11 D 11 D 11D 12 D 12 D 12D 13 D 13 D 13D 14 D 14 D 14D 15 D 15 D 15Please refer topages 81/82 for moreinformation.Please indicate length of line (standard = 2 m)Miscellaneous (please select 1):Outdoor versionIndoor versionE___m E___m E___m E___mF 50F 51Connector (for open wire ends: omit code “G”)8-pin mini DIN connector on testo instrument (not for TC)Miniature TC connectorMiniature TC couplingTC connectorTC couplingPrecision plug-in connector (for testo 171, code A10)DIN round connector Pt100/NTCDIN round connector TC, 8-pin, with reference junction for type K onlyG 02 G 02G 03 G 03 G 03G 04 G 04 G 04G 05 G 05 G 05G 06 G 06 G 06G 07 G 07G 08 G 08G 09 G 09 G 09Please refer topages 77 - 82 for moreinformation on plug-inconnectionsSample order: Order code 6000.0000 /Type 23/ A 02 / B 09 / C 99 / 250 / D 03 / E 12.5 / G 08Air temperature probe type 23, Pt100 probe (class A), probe shaft Ø 6 mm, probe shaft length 250 mm, 12.5 m silicone line, with DIN round connectorTemperature probe selection made easy: www.testo-celsius.com

74Overview of probe types 30 / 31: Protection sheaths and insertsThe many different advantages that protection sheaths offer have made them an “industrial standard”. They are particularly used formonitoring purposes in vessels and pipelines.Advantages- Insert (type 31) can be exchanged without interrupting the process- Transmitters (optional component of insert type 31) are accomodated directly in the connecting head- Used without compensating or thermocouple linesDesignSelection of connecting heads75 mmIP 65PG 16Mounting threaddbNeck (Code F 03)Screw-inthread G½”Standard head BOrder code K01, materialaluminium, Tmax 80 °Ca6 mmType 31Insert with terminals (code H01)or transmitter (code H02)ac9x1 mmType 30Protection sheath with connectinghead (without insert)9x1 mmType 30Protection sheath includingoptional neck (F03) (without insert)Order code K02, materialpolyamide(chemistry/food)Types with (code F03) or without neck extension can be ordered:Order code Neck code Dimensions Type 30 (mm) Type 31 (mm)a b c dOrder code K03, materialstainless steel(chemistry/food)C07 –C08 –C09 –C07F03C08F03C09F03160250400160250400000120120120160250400280370520205295445315405555Order code K04, materialaluminiumhead transmitter (code H02)and insert (type 31)can be replaced independently ofeach other

75Ordering information for protection sheaths and insertsProtectionsheathType 306030 9999InsertType 316031 9999Measuring sensors:Pt100 Class BPt100 Class AType K (Class 1)Type K (Class 2)Type J (Class 1)Type J (Fe-CuNi) Class 2Insert with two sensors on requestA 01A 02A 05A 06A 07A 08Further information onmeasuring sensors andmeasurement rangeson page 80Probe shaft Ø:Ø 6.0 mm (= Standard for Type 31)Ø 9.0 mm (= Standard for Type 30)B 12B 09Probe shaft length (PSL) 1)Type 30: Length a=160 mm; Type 31: Length d=205 mmType 30: Length a=250 mm; Type 31: Length d=295 mmType 30: Length a=400 mm; Type 31: Length d=445 mmOther (please state)Miscellaneous (without neck: omit code “F”)with neck optional (Type 30: Length c = a + 120 mm additional; Type 31: Length d = 110 mm additional)C 07 C 07C 08 C 08C 09 C 09C 99 C 99F 03 F 03Please orderType 30 and 31,accordingly, e.g..C 08 - C 08 andF 03 - F 03Signal processed in connecting headConnection base with terminalsTransmitter 4...20 mA (2-wire system)Connecting heads (cf. photos left)Standard head B version (light metal)Form B-KU (plastic)Form B-VA (stainless steel)Form BA-KLH (light metal)K 01K 02K 03K 04H 01H 022)2) Please always indicatethe exact temperaturerange (°C) in cleartext (see example). Informationon selectionof temperature rangessee page 79Sample order: Order code 6030.9999 / B 12 / C 08 / F 03 / K 01Stationary fitting type 30, installation length 250 mm, with neck, standard head BSample order: Order code 6031.9999 / A 02 / B 09 / C 08 / F 03 / H 02 / 50 / 150Insert type 31, Pt100 Class A, fits into stationary fitting I=250 mm with neck, with transmitter 4 to 20 mA, temp. range +50 to +150 °C(here: Length c = a + b = (250 + 120) mm = 370 mm • Length d = (295 + 110) mm = 405 mmPositive pressure (bar)Stress resistance of protection sheath (st. steel 1.4571)60PSL 1) = 160 mmAirPSL 1) = 250 mm40PSL 1) = 400 mm20Saturated steam curveThe permitted stress of theprotection sheaths is a function ofthe temperature, the installationlength and the flow velocity of themedium (see diagram taken fromDIN 43763)Permitted flow velocityAirSuperheated steamWater25 m/s25 m/s3 m/sWaterSuperheated steam0100200 300 400Temperature (°C)Example: At 300 °C/30 bar(point 2) installation lengths of 160mm or 250 mm are permitted, butnot 400 mm.

76LinesThermal and equalising lines for thermocouple probesEqualising lines (AGL) are used to extend thermocouples and must be laid from the probe connection to the reference point(equalising socket, measurement location switch, measuring instrument). Equalising lines consist of plus and minus conductorswhich have the same thermoelectric property as the thermocouple in the range from -50 °C to +200 °C (-58 to +392 °F) . Athermocouple line (TCL) should be used for higher temperatures.Probe lines with sheath are used:- for large distances between probe and measuring instrument- if there are strong alternating fields near the probe lineProbe lines without sheath are used:- for short connections between probe and measuring instrument- if there is no risk of electrical interference on the probe line.Thermal and equalizing lines (cut goods)Corresponding to DIN IEC 584, white limb minus, colour limb (in TC code colour) plusIllustrationDescriptionType Part no. Standard probecodeAGLPVC insulation, separately and together,Outer diameter ~4mm, flexible lead 2x 0.22mm 2 Tmax. +105°C (+221 °F)Type K (NiCr-Ni) 0230 2009D 11AGLPVC insulation, separately and together, sheathedOuter diameter ~5mm, flexible lead 2x 0.25mm 2 Tmax. +80°C (+176 °F)Type K (NiCr-Ni) 0230 2011D 12AGLSilicone insulation, separately and togetherOuter diameter ~4mm, flexible lead 2x 0.25mm 2 , Tmax. +180°C (+356 °F)Type K (NiCr-Ni) 0230 2015D 13AGLTeflon insulation, separately and together, sheathedOuter diameter 4mm, flexible lead 2x 0.22mm 2 , Tmax. +205°C (+401 °F)Type K (NiCr-Ni) 0230 2025D 14TELTELTELTELTELDouble fibreglass insulation, sheathedOuter diameter ~3.6mm, flexible lead 2x 0.22mm 2 , Tmax. +400°C, Class 2(+752 °F)Fibreglass insulation, separately and together, outer diameter ~1mm,oval 1.4 x 0.9mm, wire diameter 2 x 0.2mm, Tmax. +400°C, Class 1(+752 °F)Fibreglass insulation, separately and together, outer diameter ~2mm,oval 2.1 x 1.2mm, wire diameter 2 x 0.5mm, Tmax. +400°C, Class 1(+752 °F)Teflon insulation, separately and together, outer diameter 1.4 x 2mm,wire diameter 2 x 0.2mm, Tmax. +260°C (+500 °F)Teflon insulation, separately and together, outer diameter ~2mm,oval 1.5 x 2.3mm, cores 2 x 0.13mm, Tmax. +260°C, Class 1 (+500 °F)Type K (NiCr-Ni) 0362 0230D 15Type K (NiCr-Ni) 0362 0221 On RequestType K (NiCr-Ni) 0362 0222 On RequestType K (NiCr-Ni) 0362 0240 On RequestType K (NiCr-Ni) 0362 0236 On RequestCaution! A supplement will be charged for small quantities.Other thermocouples and equalising lines (Type J, L, T and S) available on request.Please specify type of cable and quantity.Measurement and control lines (cut goods) for Pt100/NTCIllustrationDescriptionTeflon (FEP)insulation, separately and together, sheathed,Outer diameter ~4.0mm, wires: 4x 0.22mm 2 , Tmax. +205°C (+401 °F)Type Part no. Standard probecodeCopper 0230 0031 D 04Separately Teflon insulation, together silicone insulationOuter diameter ~4.5mm, wires: 4x 0.25mm 2 , Tmax. +180°C (+356 °F)PVC insulation, separately and together, sheathed,Outer diameter ~5.0mm, wires: 4x 0.14mm 2 , Tmax. +80°C (+176 °F)Separately PVC insulation, together PUR insulationOuter diameter ~4.5mm, wires: 4x 0.14mm 2 , Tmax. +80°C (+176 °F)Copper 0230 0022Copper 0230 0024Copper 0230 0025D 03D 02D 01Separately PVC insulation, together PUR insulationOuter diameter ~5.0mm, wires: 8x 0.14mm 2 , Tmax. +80°C (+176 °F)Separately PVC insulation, together PUR insulation, sheathed,Outer diameter ~5mm, wires: 8x 0.14mm 2 , Tmax. +80°C (+176 °F)Copper 0230 0033 On RequestCopper 0230 0035 On RequestCaution! A supplement will be charged for small quantities.

77Plug-in and screw-in connectionsPlug-in and screw-in connectionsPrecision plug-in connections for temperature and low-voltage measuring chainsSee also the help for selecting screw and plug-in connections provided on page 48.Clamp screw connectionsTo install thermocouple and Pt100 probes; pressure-tight with Teflon clamp ring to 6 bar (87 psi); pressure-tight with stainless steel tapered ring up to 50bar (725 psi)IllustrationMaterialThreadDiameter(L/EL)ClampingPart no.ØELLStainless Steel M 8x11.5mm (26/8) Teflon clamp ring 0400 6181Stainless Steel M 8x13mm (26/8) Teflon clamp ring 0400 6183Stainless Steel G 1/4”6mm (37/12) Teflon clamp ring 0400 6186Stainless Steel M 8x11.5mm (26/8) St. steel clamp ring 0400 6191Stainless Steel M 8x13mm (26/8) St. steel clamp ring 0400 6193Stainless Steel G 1/4”6mm (37/12) St. steel clamp ring 0400 6196Zinc-coated steel M 8x11.5mm (26/8) Teflon clamp ring 0400 6161Zinc-coated steel M 8x13mm (26/8) Teflon clamp ring 0400 6163Zinc-coated steel G 1/4” 6mm (37/12) Teflon clamp ring 0400 6166Zinc-coated steel M 8x11.5mm (26/8) St. steel clamp ring 0400 6171Zinc-coated steel M 8x13mm (26/8) St. steel clamp ring 0400 6173Zinc-coated steel G 1/4” 6mm (37/12) St. steel clamp ring 0400 6176Spare clamp or Teflon rings available on request. Please specify type of screw-in connection and quantity.Screw-in socketsTo weld sheathed thermocouplesIllustrationMaterialThreadLELPart no.Stainless SteelM 8x118mm10mm 0170 6080ELLStainless SteelStainless SteelG 1/4”G 1/2”18mm23mm10mm 0170 608413mm 0170 6086ReducersTo adapt screw-in connections to thread availableIllustrationMaterialThread (R1 x R2)ELPart no.R1Stainless SteelStainless SteelM 8x1 G 1/4”M 8x1 G 3/8”18mm 0170 023818mm0170 0239LStainless SteelM 8x1 G 1/2”23mm0170 0240R2Stainless SteelStainless SteelG 1/4” G 3/8”G 1/4” G 1/2”23mm23mm0170 02410170 0242Thermocouple plug-in connections, Type KMade of nylon reinforced with fibreglass; for higher temperatures; Tmax. +200 °C/+392 °F (-100 °C/-148 °F); ceramic plug on requestIllustrationDescriptionPart no.(For TC Type K only)Standard probecode1625.320301625.3 505915 Plug for miniature TC plug-in connection Coupling for miniature TC plug-in connection Connection clip for miniature TC plug-in connection Plug for standard series TC plug-in connections Coupling for standard series TC plug-in connections DIN round plug, 8 pin (plastic housing, black); Pt100/NTC DIN round plug, 8 pin (plastic housing, black); TC, Type K with reference point Precision plug-in connector for type 10/12 (for Pt100/NTC*), ill. page 380220 00940220 2094On request0220 00930220 20930220 00590409 01600220 0352G 03G 04G 05G 06G 08G 09

78Signal output with temperature transmitter testo 55Thermocouples and Pt100 can offer standard signal output 4 to 20 mA with the help of transmitters. 4 mA corresponds to the lower end ofthe scale, 20 mA to the upper end. This “2-wire technology” supplies both power and signal transmission simultaneously via just two cores.The output signal for Pt100 is linear in relation to the temperature and for thermocouples linear in relation to the thermoelectric voltage (in mV)according to DIN IEC 584-1. Choose the ordering options (right) which optimally meet your requirements . An RS484 version (Code L04) isalso available.Specifications Head transmitter DIN rail transmitterInputPt100, 3-conductor terminalTC Type T/C, J, L, T, K, NPt100, 3-conductor terminalTC Type J, L, T, K, NMeasuring range (p. 49)range within -50...550 ° C-5 mV...55 mVrange within -50...550 °C-5 mV...55 mVAccuracy± 0.15 % of working range± 0.5 % to ± 1.0 % of working range± 0.15 % of working range± 0.5 % to ± 1.0 % of working rangeOutput4...20 mA, 2 wire4...20 mA, 2 wire4...20 mA, 2 wire4...20 mA, 2 wireLinearitytemperature-linear outputmV linear outputtemperature-linear outputmV linear outputPower supply6.5 to 32 VDC6.5 to 32 V DC6.5 to 32 V DC6.5 to 32 V DCInstallationin DIN B or larger connecting head orin DIN B or larger connecting head orDIN rail EN 50022, 35 mmDIN rail EN 50022, 35 mmwith clip on DIN rail, see below centrewith clip on DIN rail, see below centre33 mm44 mm45 mm90 mm1017 mm59 mmPt 100Zero adjustmentWorking range adjustment4 to 20 mAZero adjustmentWorking range adjustmentPt 1004...20 mAPosition of headtransmitterPt100DIN railClip15ThermocoupleZero adjustmentWorking range adjustment4 to 20 mA15Position of headtransmitterZero adjustmentWorking range adjustmentTC4 to 20 mADIN railClip- +TCCode L 01, head transmitterCode L 02, head transmitter with clipfor assembly on DIN railCode L 03, DIN rail transmitter

79Signal output with temperature transmitter testo 55Definition of transmitter scalesThe transmitters offered here are configured specifically for your measuring requirements using your parameters. Please observe the “scalingrules”.Pt 100 transmitterPossible options (indicate when ordering): Zero point between -50...+50 °C (-58...+122 °F), working ranges 50 to 500 KabExample: Zero point 10 °C, working ranges 50 to 500 KMeasuring range +10 °C to +210 °C (+50 to +410 °F)Example: Zero point -25 °C, working range 300 KMeasuring range -25 °C to +275 °C (-13 to +527 °F)aZero point ZP+50 °C/+122 °F+200 °C/+392 °F+300 °C/+572 °F+400 °C/+752 °F+550 °C/+1022 °FPrecision adjustment:The zero point and range can be adjusted on site by upto 10 % of the range per potentiometer.0 °C/+32 °Fb-50 °C-58 °F+100 °C/+212 °F+200 °C/+392 °F+300 °C/+572 °F+450 °C/+842 °F+500 °C/+932 °FThermocouple transmittersThe measuring ranges of thermocouples are defined in 5 mV steps from 10 mV...50 mV according to thermoelectric voltages. Thetemperature range you choose (e.g. 0 to 800 °C for type K) is adapted and expanded on the basis of these 5 mV steps (in this example to840 °C which corresponds to 35 mV). The zero point is generally 0 °C.0 mV +50 mVRange*min: 215 °C/419 °Fmax: 405 °C/761 °F0 °C/+32 °FType T500 °C/+932 °F1000 °C/+1832 °F1500 °C/+2732 °F-5 mV +55 mV*min: 185 °C/365 °Fmax: 870 °C/1598 °FType JThe maximum values in °C correspond to the maximum inputvoltages (-5 mV...+55 mV) which the transmitter can process.(Thermoelectric voltage according to IEC 584-1)Precision adjustment:The zero point and range can be adjusted bypotentiometer on site to ± 5 mV.*min: 245 °C/473 °Fmax: 1230 °C/2246 °FExample:840 °C = 35 mV(+1544 °F)Reserve for precisionadjustmentType K* possible meas. rangeSelecting and ordering transmitters testo 55 (Part no. 6055 9999)Give a measuring range that is as precise and as small as possible, as the accuracy of the signal output depends on the working range.Please remember not to utilise the whole of your measuring range for the working range, as it must still be possible to make adjustments tothe transmitter up to the maximum values of the measuring range.Input signal sensorelementModelHousing for head or RS485 transmitter*Pt 100 class BPt 100 class APt 100 1/3 class BPt 100 1/10 class BA 01A 02A 03A 04Head transmitterHead transmitter with clipDIN rail transmitterRS485 transmitter*L01L 02L 03L04No housingPlastic housing* a metal housing is also available onrequestM 01M 0290 mmType K class 1A 05Type K class 2A 06Type J class 1*Type J class 2*0 to 1 V0 to 10 V0 to 20 mA4 to 20 mAA 07A 08A 91A 92A 93A 94only for RS484 (Code L04)Please give temperature range from.../to... °C in clear text118 mmHousing for RS485 transmitter90 mmPlease note: The transmitter testo 55 includes neither the temperature probe nor a connection cable.Sample order: Order code 6055.9999/A 02/50/150/L 02/M 01Head transmitter for Pt 100 Class A probe with DIN rail clip, temperature range +50 to +150 ° -122 to +302 °F), no housing69 mmHousing for head transmitter

80Selection assistance temperature probes and overviewOverview of probe components 1-6The following pages give some advice for when you come to choose each of the temperature probe components. For an overview ofcomponents (1 - 6), see also the graphic below. You can optimally select from both the standard probes and the custom temperature probes.The codes D01, G08 etc. will help you define the different versions quickly and correctly. Probe and Signal line and insulationsensor elements (p. 46) Probe shaftOpen line endsSignal outputTransmittertesto 54 display and control units(p. 50). Display, switching, onlinelogging - See below for guides Screw connectionsPlug-in connectionstesto hand-held instruments andoffline loggersa Measuring range of sensor element+ 1800+ 1600+ 1400+ 1200+ 1000+ 800+ 600+ 400+ 2000- 100- 200° CBelow -50 °CAbove +400 °COn requestIdeal measuring rangeNTC Pt 100 TC type T TC type J TC type K TC type S (TC = thermocouple)Example:Your process requires a measuringrange from 0 to 350 °C (32 to 662°F). Pt 100 and thermocouple typeJ or K are suitable.b Accuracy and response timesOrder codeA 01On requestMeasuring sensorPt 100Range °C-50...+400-200...+600ClassBBTolerances± 0.3 °C± 0.3 °C± 0.005 x ItI± 0.005 x ItIResponse times t99**10 s in water (probe shaft Ø 1.6 mm)10 s in water (probe shaft Ø 1.6 mm)* NTC are not standardizedA09: 5K Ohm, e.g. for testo hand-held instrumentsA10: 10K Ohm, e.g. for logger 171A 02Pt 100-50...+400A± 0.15 °C± 0.002 x ItI15 s in water (probe shaft Ø 3 mm)On requestPt 100-200...+600A± 0.15 °C± 0.002 x ItI15 s in water (probe shaft Ø 3 mm)A 03A 04On requestA 05A 06On requestType TType KType KTCType K-50...+2000...+100-40...+350-40...+1000-40...+1200-200...+401/3 B1/10 B1123± 0.1 °C± 0.03 °C± 0.5 °C or 1)± 1.5 °C or 1)± 2.5 °C or 1)± 2.5 °C or 1)± 0.0017 x ItI± 0.0005 x ItI± 0.001 x ItI± 0.004 x ItI± 0.0075 x ItI± 0.015 x ItI130 s in air (probe shaft Ø 1.6 mm)150 s in air (probe shaft Ø 3 mm)1.5 sec. in water (probe shaft Ø 0.5 mm)3 s in water (probe shaft Ø 3 mm)40 s in air (probe shaft Ø 0.5 mm)** TemperatureprobeType 14Type 15Type 17Type 18Tye 19in water in air on a surface68 s 90 sapprox. 45 sapprox. 3 sapprox. 3 sapprox. 150 sA 07A 08On requestType JType JType S-40...+750-40...+7500...+1500122± 1.5 °C or 1)± 2.5 °C or 1)± 2.5 °C or 1)± 0.004 x ItI± 0.0075 x ItI± 0.0025 x ItI70 s in air (probe shaft Ø 3 mm)Type 20Type 21Type 23approx. 20 sapprox. 15 sapprox. 3 s-50...-25.1-± 0.4 °C-A 09/A10NTC (Standard)*-25...+74.9-± 0.2 °C-+75...+150-± 0.5 %Of value7 s in water (probe shaft Ø 3 mm)-30...-20.1-± 1 °C-66 s in air (probe shaft Ø 3 mm)On requestNTC (high temp.)-20...0-± 0.6 °C-+0.1...+75-± 0.5 °C-+75.1...+275-± 0.5 °C + 0.2 % Of value1) the higher value applies

81Selection assistance temperature probesSelecting probe shaftsa Probe shaft materialsMaterialStainless steelMaterial no.1.4305Temp. range in cont.operation-200...+550 °CApplicationLimited resistance to chemicals. Used in the paint, soap, paper and textile industries.Stainless steel1.4571-200...+700 °CResistant to non-oxidising acids and media containing chloride.Inconel 600Teflon2.4816(PTFE)/PFA-200...+1150 °C-190...+260 °C(briefly 300 °C)150 °CAreas of application include furnace construction, chemical industry, food industry,plastics industry. Very resistant to halogens and chlorine.Teflon (PTFE)/PFA is resistant to almost all chemicals. The surface is non-adhesive.Halar coatingA special plastic coating for the probe shaft is available for applications involvingparticularly aggressive media. The coating offers optimal protection against organic andinorganic substances and corrosion. The coating is impermeable (gas-tight) to steam andgases. Heat resistance up to 150 °C is guaranteed. b Probe shaft/Installation length dimensionsSince the medium to be measured normally hasa lower temperature at the process wall, theinstallation length should be correspondinglylong in order to avoid incorrect readings.Probe shaft without fixed threadShown here: Type 03Also applies to Type 02, 04, 06, 08,09, 10, 11, 17, 23Probe shaft lengthCable/connectorProbe shaft with fixed threadShown here: Type 13Applies also to Type 12 and 24Probe shaft lengthCable/connectordInstallationlength(Cutting ring)screw connectiondInstallationlengthSelecting lines and insulation (see page 76 for all lines including article numbers)a Connection typeFour-wire technology (Pt100/NTC)Standard probes are supplied in four-wire technology. This means that a wire-related influence cannot affect the parameter. Two-wire andthree-wire formats can be achieved by wiring cores locally in parallel or are available on request.4-wire connectionStandard3-wire connection2-wire connectionFor thermocouples onlyCompensating lines (AGL) are sufficient where wire temperatures are between -50 °C and 200 °C (-58 to +392 °F).Thermocouple lines (TEL) are required for wire temperatures below -50 °C or above 200 °C (-58 to +392 °F).

82Selection assistance temperature probes b Line insulation. A shielded line is normally recommended (see page 76 for photos and how to order by the metre)MaterialTemperature rangeTemperature rangeMechanicalOther propertiesOrder code, Pt100/NTC linesOrder code, thermocouple linesInsulation staticInsulation movingpropertieswithout shieldingwith shieldingwithout shieldingwith shieldingPVC/PUR-20 to +80 °C +5 to +70 °C(-4 to +176 °F) (+41 to +158 °F)-20 to +105 °C (for D11*) +5 to +90 °C (at D11*)Moderate protectionStandard applications,low costD 01D 02D 11D 12Silicone-50 to +180 °C-25 to +180 °CFlexible, easy to seal,Resistant to moisture andD 03on requestD 13on request(-58 to +356 °F)(-13 to +356 °F)susceptible to damagetemperatureFEP-100 to +205 °C-30 to +205 °CVery robust, less flexibleResistant to moisture,on requestD 04on requestD 14(-148 to +401 °F)(-22 to +401 °F)temperature and chemicalsPFA/PTFE-100 to +260 °C-30 to +250 °CVery robust, less flexibleResistant to moisture,D 06on requeston requeston request(Teflon)(-148 to +500 °F)(-22 to +482 °F)temperature and chemicalsGlass fibre-25 to +400 °C+20 to +400 °CBest high temperatureSusceptible to moistureon requestD 05on requestD 15(-13 to +752 °F)(+68 to +752 °F)properties Selecting plug-in connections and couplingsThe plug-in connections shown can be selected according to the type of stationary probe (cf. ordering overviews in the probe options). Thecodes (e.g. G07) are indicated for these plug-in connections and for selecting custom stationary probes (see query for customizedtemperature probes). If only a single part or replacement part is to be ordered, please refer to the order numbers on page 77.G 06G 02G 03G 04G 05G 06G 07G 08G 09on request8-pin mini DW plugMiniature TC connector, glass fibre-reinforced (up to +200 °C/+392 °F)Miniature TC coupling, glass fibre-reinforced (up to +200 °C/+392 °F)TC connectorTC couplingPrecision plug-in connector, 5-pin, for testo 171 (NTC 10KΩ)DIN round connector (8-pin) Pt100/NTCDIN round connector (8-pin), TC type K with reference junctionCeramic connectorG 05G 07G 03G 04G 08/09/02 Clamp screw connections and screwed bushesThere are two basic options for mechanical installation: using a clamp screw connection or by welding in a probe. The order numbers areshown on page 77.Clamp screw connectionFor pressure-tight installation of TC andPt100/NTC probes (not for types 08,14, 15, 17, 18, 19, 20, 21)Screwed bushFor welding in, glueing in and solderingof probes (not for types 08, 14, 15, 17,18, 19, 20, 21)Reducing pieceFor adapting screw connections to theexisting threadTeflon clamp ring (pressure-tight to 6 bar)*Stainless steel cutting ring (pressure tight to50 bar)Probe shaftStainless steel or galvanised steel(M 8x1 and G 1/4“, see page 47)Stainless steel(M 8x1 and G 1/4”, G 1/2”)Probe shaftInternal threadM 8x1, G 1/4”External threadG 1/4”, G 3/8”, G 1/2”* The Teflon clamp ring can be sealed tight and reopened several times. The stainless steel cutting ring, however, only shuts tight once (due to deformation).

83Selection assistance temperature probes Selecting the signal outputTemperature readings can be output in a variety of ways: using a transmitter, a display with or without alarm outputs, a hand-held instrumentor a logger. Below is a summary of the options.Temperature probePt100/TC/NTCConnectors,page 82Hand-heldmeasuringinstrumentsData loggerstesto 950for NTC, Pt100, TCtype Ktesto 175-T3, -T4for TC type Ktesto 935for TC type Ktesto 922, 925for TC type Ktestostor 171-4for NTC probesAnalysis by taking areading/printout (handheld)or via data stick andComSoft analysisprogram (offlinelogging)Head transmitters, page 78/794 to 20 mAHead transmitters with housing,page 78/794 to 20 mATemperature probePt100/TCDIN rail transmitters, page78/794 to 20 mASignal processing inPLC control circuitsSignal linewith freeendsRS485 transmitter with housingsee page 75RS485Display and switching outputs,see page 84testo 54-5-digit LED display- 2 programmable limit values- optional RS485Display and switching outputswith wall panel, page 78/79testo 54- as above, with housingDisplay, alarm oronline logging via RS485 and ComSoftanalysis program,page 118Display, alarm or online logging viaRS 485 and ComSoft analysisprogram, page 118testo 54- as above, with housing- alarm signal (optical & acoustic)- ready wired

84Process display with testo 54: display, switch and network, online logging, alarmDoes the reading have to be available in legible form immediately beside the location or even on a remote switch cabinet? Is an alarm to betriggered or an assembly activated when a certain alarm level is reached?The resistance thermometers (Pt100 and others) and thermocouples (types K, J, T, S and others) can be displayed directly on the testo 54displays. All you need to do to see the reading in a clear, legible form is select the input type and scale on site in the well structured usermenu. Other types (54-2, -4, -7) are used for displaying analog signals (4 to 20 mA or 0 to 10 V DC)Overview of types Inputs Supply MemoryTypesOrder no.Thermocouple type B/E/J/K/N/R/S/Tresistance thermometer0...400 / 0...4000 Ohmmillivolt input 0...100/-100...+100 mV4...20mA0...20 mA0...10 V-10...+10 V+2...+10 VVoltage Min./Max.readingsmemoryTotaliser(sumfunction)ideal forflowthroughapplication2 relay *outputsOutputs24 V DC/50mA **auxiliarypoweroutputRS485outputfor onlinemonitoringcf. page 8854-1DC5400 6551—————54-1AC5400 7551————54-2DC5400 6553————54-2AC5400 7553———54-3DC5400 6554————54-3AC5400 7554———54-4DC5400 6529—————54-5DC5400 6531Pt100 only—————54-6DC5400 6532TC only—————54-7DC5400 6555——54-7AC5400 7555—54-8DC5400 6556———54-8AC5400 7556——••••••••• 20 to 30 VDC 100 to 250 VAC, 50/60 HzFeaturesOptimal illumination even in dark surroundings (engine rooms etc.)* Relay outputs (54-2, 54-3, 54-7, 54-8) can be activated directly with 90 to 250 V AC/300 V DC, max. 3 A, min. 30 mA** Auxiliary energy output 24 V DC: replaces mains unit in two-wire transmitters (4 to 20 mA) or supplies power to alarm light, for exampleData saved for 10 years (EEPROM): scaling limits, input type and other parameters stored securelyIP 65 from front (when installed))Key locking possibleVery easy installation (see illustration below)Load testo 54: 225 ΩThe process displays testo 54 have 5-figure 7-segment displaysFront view (here testo 54-2AC)Very easy installation(Dimensions for testo 54-1, -2, 3-, -7, -8)Terminal stripFront of switch cabinet(cut-out size 92x45 mm)1. Push Testo 54 in from front(front size 96x48 mm, mountingframe included; slot: 92 x 54 mm)Rear view (here testo 54-2AC)2. Slide mounting frame on from rearDimensions testo 54-4, -5, -6:- Front size 48 x 24 mm, slot 45 x 22.2 mm- Depth 59 mm

85Process display with testo 54: display, switch and network, online logging, alarmConvenient operating menu (testo 54-1/-2/-3/-7/-8), key locking possibleWhat isparameterable?– Input signal type– Scale– Decimal places– Characteristic curves(e.g. root function)Store yes /no– 2 limit values– 2 hystereses– Deactivation automatic oracknowledgement by button/MPI input– Suppression of leak flow volume*– Conversion factor*– Decimal places*– Deactivation manual/MPI input*Further parameters– Address RS485 */**– Reset to default valuesWhat isdisplayed?Actual valueMin./max. Limit value 1/2(also programmable in display mode)Totaliser*Actual valuePChange by pressing button*for testo 54-7 / ** for testo 54-8 MPI = Multi Purpose InputEasy wall mountingWall panel mounting is not always possible or practicable. The wall panel or alarm columnallows the testo 54 displays to be mounted directly beside the measuring point or at othersuitable locations. The alarm column is supplied fully wired incl. clamp connection block(duplicated switch outputs for external alarm) and a 3 m power cable. The initial alarm is anoptical signal, the main alarm an acoustic signal. Both alarm levels can be acknowledgedusing the keys or the MPI input (digital).The two relay outputs of the testo 54 enabledecentralized alarms when limit values are exceeded,e.g. with the help of the alarm columnWall panel* (180x130x100)inc. 3x cable entryM 20x1.5Alarm column with integratedaudible and visual alarmIdeal for integration in a wall panel: testo 54

86The optimum process units for every applicationApplication230VACSupply24VDC24 V mainsunit0.5 A 2.5 A WHousing in mmHDConnectioncableCablelengthSensorSupply of a 2-wire measurement transmitter, measurement valuedisplay, LV-signalling180 130 100 2.5 m 2-core5 mSupply of a testo 6740, measurement value display, LV-signalling180 130 1002.5 m8-core5 mTemperature measurement Pt100 or TC, measurementvalue display, LV-signalling180 130 1002.5 mTemperature measurement Pt100 or TC, measurementvalue display, LV-signalling, online monitoring180 130 1002.5 mAlarmSupply of a 2-wire measurement transmitter, measurement valuedisplay, LV-signalling, online monitoringAlarm lamp 230 VACSupply of a 2-wire measurement transmitter, measurement valuedisplay, LV-switching180 130 100180 130 100180 130 1002.5 m2.5 m2-core5 mProcessunitsunitsSupply of a 2-wire measurement transmitter, measurement valuedisplay, LV-signalling, mA-switchSupply of a 2-wire measurement transmitter, measurement valuedisplay, LV-switchingSupply of a 4-wire measurement transmitter, measurement valuedisplay, LV-signallingSupply of 4-wire hygrotest, collective alarm via hygrotest displaySupply of a 4-wire hygrotest 650, measurement value display ofboth channels, LV-switching plus acknowledgementTemperature Pt100 or TC, measurement value display, LVsignallingplus acknowledgement, online monitoringSupply of a 4-wire hygrotest 650, individual signalling of thehygrotest display alarmsMeasurement value display, measurement value forwarding180 130 100180 130 100180 180 125180 130 100255 180 125180 180 125180 130 100280 190 1802.5 m2.5 m2.5 m2.5 m2.5 m2.5 m2.5 m2-core2 x 5 m2-core2 x 5 mMeas.Pt100 or TC, measurement value displayMeasurement value display, measurement value forwardingMeasurement value display, measurement value forwarding100 180 100130 180 125130 180 1502.5 m2.5 munitsVolume measurement and accumumlation, measurement valuedisplayTemperature measurement Pt100 or TCTemperature measurement Pt100180 130 150280 190 180180 180 125M-bus adapter for testo 6440130 180 150

87QuantityDisplay unitTypeAlarm processingBuilt-in alarmAcknowledgementMeasurement valueforwardingmA V RS485MiscellaneousOrder no.1 testo 54 - 2ACLampredHorn0699 5811/011testo 54 - 2ACLampredHornAdditional alarm board0554 33020699 5811/021testo 54 - 3ACLampredHorn0699 5811/031testo 54 - 8ACLampredHorn0699 5811/041testo 54 - 7ACLampredHorn0699 5811/05LampredHornCombi-product0699 5811/070699 5811/061testo 54 - 2ACLampredHornAlarm forwarding toexternal via 230 VAC0699 5811/071testo 54 - 2ACLampredHorn0699 5811/081testo 54 - 2ACLampHornAlarm forwarding viapotential-free contact0699 5811/091testo 54 - 2ACLampHornHornAlarm forwarding toexternal via 24 VAC0699 5811/10LampredHorn0699 5811/112testo 54 - 2ACLampHornHornAlarm forwarding toexternal via 24 VAC0699 5811/121testo 54 - 8DCLampHornHornAlarm forwarding toexternal via 24 VAC0699 5811/13LampHornLamp colours red, yellow,blue, green0699 5811/142testo 54 - 2DC4-wire temperaturemeasurement transmitterbased0699 5715/012testo 54 - 1ACbased0699 58101testo 54 - 2DC2-wire temperaturemeasurement transmitterbased0699 5870/011testo 54 - 2DC4-wire temperaturemeasurement transmitterbased0699 5870/021testo 54 - 7ACCumulative value reset viabuttonbased0699 58974testo 54 - 3ACbased0699 5820/014testo 54 - 5DCbased0699 5820/020699 5887/02

88Modular flow velocity transmittersThe versatile flow velocity transmitterThe flow velocity transmitter can be used in conjunction with the airflow velocity probes of the Testo reference class (vane, hot bulb, andhot wire probes). In addition to this, the instrument offers very highflexibility, especially in the selection of the measurement ranges andthe field of application. This makes it ideal for test benches, forexample. The air flow velocity as well as the air volume flow,expressed in different units, are available to the user. This means thatthe possibility of a consumption measurement is also given. Variablenorm signals 0(4) to 20mA or 0 to (10)V offer the ideal interface forconnection to superordinate controls.Two display versions with, among other things, switch outputs and anRS485 interface are optionally available. Output channels for flowvelocity and temperature with a common earth complete thespectrum ( for thermal probes and vanes with thermocouples only).The transmitter thus offers the ideal solution for your air flow velocity(HVAC) applications.Technical dataVoltage supplyCurrent consumptionAnalog outputsAnalog interface24VDC (15 to 30VDC)50...120mA (depending on probe connected)Two outputs (temperature optional), with commonearth, defined according to NAMUR NE430(4) to 20mA; 0 to 10V customer-specificallyconfiguredGalvanic isolationYes (supply to analog output)Resolution~5µA (12 Bit PWM)Accuracy0.02mA / 1.5mV or 15mVDrift analog outputtypically 0.3µA/KHousingABS, grey RAL 7035, 130x105 (140)x52mmProtection classIP65 (on request), IP 54 (with probe connected)EMCAccording to guideline 89/336 EECAmbient temperature0 to 60 °C (+32 to +140 °F)All data are based on an ambient temperature of approx. 22 °CThe transmitter for air flow velocity – flexible and customer-specificFlow velocity transmitterFlow velocity transmitter withoutdisplay for plug-in probesPart no. 0699 5100/1Optional displays:There are two display versions, similar to the H2 (programmabledisplay only), and H5 (additional RS485 and switch outputs) versionsin the hygrotest transmtter.The transmitters can also be programmed (probe type, scaling, unit,absolute pressure input etc.)0699 5100/10 Display similar to H20699 5100/11 Display similar to H5

89Flow velocity transmitter including probesPrices for flow velocity transmitters including probe on requestThe flow velocity transmitter is offered and sold as a complete unit,consisting of basic instrument, probe cable and the respective probe.This is due to the configuration and the final test, which must becarried as a unit.The flow velocity transmitter is fully equipped with a temperatureoutput and is available with the following probes.ProbesIllustrationProbe typeMeas. rangeAccuracyPart no.Vane probe, Ø 12 mm, can be attached tohandle 0430 3545 or telescopic handle0430 0941180 mmØ 12 mmVane+0.6 to +20 m/sOper. temp.-30to +140 °C(-22 to +284 °F)±(0.2 m/s ±1% ofmv)(+0.6 to +20 m/s)0635 9443*Vane/temperature probe, Ø 16 mm,attachable to 0430 3545 handle or 0430 0941telescopic handle180 mmØ 16 mmVaneType K (NiCr-Ni)+0.4 to +60 m/s-30 to +140 °C(-22 to +284 °F)±(0.2 m/s +1% of mv)(+0.4 to +40 m/s)±(0.2 m/s +2% of mv)(+40.1 to +50 m/s)0635 9540*Bendable vane probe (can be bent by 90°), Ø60 mm, attachable to handle 0430 3545 ortelescopic handle 0430 0941, for meas. onventilation outletsØ 60 mmVane+0.25 to +20 m/s ±(0.1 m/s ±1.5% ofOper. temp. mv)0 to +60 °C (+0.25 to +20 m/s)(32 to +140 °F)0635 9440*Bendable vane probe (can be bent by 90°), Ø100 mm, attachable to handle 0430 3545 ortelescopic handle 0430 0941, formeasurements on ventilation outletsVane probe, Ø 16 mm, for stationaryassembly, 3 m cable (PVC)Shell anemometer, 3 m cable, formeteorological wind measurementØ 100 mmØ 16 mm250 mmVaneVane+0.1 to +15 m/sOper. temp.0 to +60 °C(32 to +140 °F)+0.4 to +60 m/sOper. temp.0 to +70 °C(32 to +158 °F)+0.7 to +30 m/s±(0.1 m/s ±1.5% ofmv)(+0.1 to +15 m/s)±(0.2 m/s ±1% of mv)(+0.4 to +60 m/s)±(0.3 m/s ±5% of mv)(+0.7 to +30 m/s)0635 9340*0628 00360635 9045Robust hot bulb probe, Ø 3 mm, formeasurements in the lower velocity range, 2mcable (PVC)150 mmØ3 mm0 to +10 m/s-20 to +70 °C(-4 to +158 °F)±(0.03 m/s ±5% ofmv)(0 to +10 m/s)0628 0035Robust hot bulb probe, Ø 3 mm, with handleand telescopic handle for measurements inthe lower velocity range850 mmØ3 mmHot bulbNTC0 to +10 m/s-20 to +70 °C(-4 to +158 °F)±(0.03 m/s ±5% ofmv)(0 to +10 m/s)0635 1049Quick-action hot wire probe, Ø 10 mm, withtelescopic handle, for measurements in thelower velocity range with direction recognition760 mmØ 10 mmHot wireNTC0 to +20 m/s-20 to +70 °C(-4 to +158 °F)±(0.03 m/s ±4% ofmv)(0 to +20 m/s)0635 1041Vane/temperature probe, Ø 25 mm, can beattached to 0430 3545 handle or 0430 0941telescopic handleAffordable, robust hot bulb probe, Ø 3 mm, formeasurements in the lower velocity range,with handle180 mm150 mmØ4 mmØ 25 mmØ3 mmVaneType K (NiCr-Ni)Hot bulbNTC+0.4 to +40 m/s-30 to +140 °C(-22 to +284 °F)0 to +10 m/s-20 to +70 °C(-4 to +158 °F)±(0.2 m/s ±1% of mv)(+0.4 to +40 m/s)±(0.03 m/s ±5% ofmv)(0 to +10 m/s)0635 9640*0635 1549Comfort level probe for measuring degree of turbulence, withtelescopic handle and stand. Fulfills EN 13779 requirements0628 0009* Attention: can only be used in connection with handle 0430 3545, telescope 0430 0941 or plug-in head cable 0409 0045Option: metal housingAccessories: Vane probesPart no.Professional telescopic handle for plug-in vane probes, max. 1 m long 0430 0941Cable, 1.5 m long, for connecting vane probes with plug-inhead to the measuring instrument0409 0045Handle for plug-in vane probes 0430 3545Order code (example)The order code results from the following components:1) Basic number 0555 44442) Flow velocity transmitter 0699 5100/1 as well as the information onthe analog output (V or mA) and the scaling3) Probe order number, e.g.. 0628 00354) Order number accessories vane probes, e.g. 0430 0941The total price results from the individual positions.

90testo 6721 Pressure Dewpoint Guard: Ideal for compressed air cooling driersMonitoring coolingdryers ...ChristophEdelmann,BusinessDevelopmentManager EuropeParameterizning, adjustment andanalysis software (P2A software):optimum procedures and time-saving incommissioning and maintenance... is only now reallyeconomically possible: thanksto the testo 6721 with its twoswitch outputs.Prefilterfor oily, contaminatedcompressed air (formeasurement chamber)Cooling coilfor process temperatures> 35 °C/> 950 °F (alwayswith measurementchamber)Measurement chamberfor ideal flow onto sensor(up to 15 bar/217 psi,POM material)

91testo 6721 – The pressure dewpoint guard for everyoneAvoid moisture damage:– Corrosion– Ice– Water hammer2 x switch output foralarm signals if toohumidtesto 6721From compressor: Humidcompressed airCooling drierAvoid moisture damage by monitoring the cooling drierExcessive moisture in compressed air results in expensivedamage: ice, corrosion, material sticking together, waterhammer (mechanical damage caused by acceleratedwater build-up), etc. A good reason for using compressedair driers.Up to now, monitoring a “simple” compressed air coolingdrier continuously was often not economical. This safetygap is now finally closed thanks to testo 6721: Thepressure dewpoint guard for everyone! Whetherintegrated as a component in a cooling drier orpneumatics machine or built-in by the customer, testo6721 helps you avoid moisture damage!Aim: Protect valuable compressedair usersParameterisation, adjustment and analysis software (P2Asoftware): optimum operations and time-saving duringinitial operation and maintenanceP2ARegardless of whether you are at the measurement site,in your office or lab, your notebook or PC cancommunicate with testo 6721 through the externalinterface and a USB adapter (included with P2A package0554 6020).P2A software =P arameterisationA djustmentA nalysisThe parameterisation, adjustment and analysis software(P2A software) offers clarity and supports all informationand options with graphics:– Unit parameterisation (°C tpd/ °F tpd)– Sets two limit values as well as hysteresis– Adjustment (1-point): accurate reference required– Reset to factory setting– Test switch outputs– Call up min/max values– Parameterisation and adjustment history (all P2Asoftware procedures are recorded on PC, withoutsaving in instrument)– Serial number and firmware version can be called upYou can also save entire parameter files; parameterisationof spare pressure dewpoint guards is thus possible withminimum time spent.

92testo 6721 – Long-term stable and reliableHumidity sensorElectrical connectionOrder codes0555 6721 AxxFxxKxxA01A02Process connection G½Process connection NPT ½”F01F02Pressure dewpoint °C tpd/ GW 1 / GW2 / hysteresisPressure dewpoint °F tpd/ GW 1 / GW2 / hysteresisTesto’s humidity sensor: longtermstable, unaffected bycondensation and traceable tointernational humiditystandards (ILAC / PTB / NISTetc.). It is adjusted using ahighly accurate dewpointmirror.K01K02K03K04K05K06K07IM German-EnglishIM French-EnglishIM Spanish-EnglishIM Italian-EnglishIM Dutch-EnglishIM Japanese-EnglishIM Chinese-EnglishLanguage versionsof InstructionmanualsOrder example: Pressure dewpoint monitor with G½ thread, pressure dewpointin °C tpd, lower limit value at 5 °C tpd, upper limit value at 14 °C tpd, hysteresis = 1K, German-English Instruction Manual 0555 6721 / A01 / F01 / 5 / 14 / 1 / K01Limit values: Without specification, default limit values are +5 °C tpd/ +10 °C tpd, at1 Kelvin hysteresis (for unit °F: 45 °F tpd/ 55 °F tpd/ 2 °F hysteresis). They can beset to customer requirements with the help of the Order code, cf. Order example.Accessories for process integrationABFor process temperatures < 10°C/< 50 °F or > 35 °C/> 95 °F (to200 °C/to 392 °F): use coolingcoil (0554 3304) andmeasurement chamber (05543303)Use measurement chamber(0554 3303) for fast mounting (nodepressurisation prior toinstallation) and better responsetime of sensor...or decentrally in front ofcritical consumerABPipeG½G½G½Pressure dewpoint guardtesto 6721 / A010554 6720 cable (5 m),with special plug oninstrument sideOther on-site alarmdevices (light, hornetc.)PLC digital inputs(digital messages)Alarm box 0554 6722G½A+BFor oily/contaminated media:add prefilter (0554 3311)CNPT ½“testo 6721 / A0290 x 118 mmCIf neither A nor B is needed:simply screw directly into the G½or NPT½“ threadDepressurized pipe is requiredduring installation.In main line:behind drier...= Compressed air quick-release device, diameter 7.2 (can be replaced by othertypes in measurement chamber, inner thread G1/4“)With terminal formains cable and 5 mcable, 2 alarm lights(with coloursgreen/red), 2 x cablescrew-in connectionM16 x 1.5

93testo 6721: Technical data/Ordering dataTechnical dataSensorOutput parameterMeasurement range/Pressure dewpointProcess conditions (measurement medium,temperature, pressure)Switch outputsLimit values (2x) and switch hysteresis (1x)Power supplyMeasurement inaccuracyInterfaceSensor protection (filter)Process connectionHousing material, dimensions, IP protection,weightAmbient temperatureStorage temperatureEMCTesto humidity sensor (with special trace humidity adjustment) and NTC temperature sensorPressure dewpoint (°C tpdor °F tpd) over two switch outputs-30 to +30 °C tpd(-22 to +86 °F tpd)Compressed air (filtered and dry, ISO 8573 Classes 2-4-2), process temperature: 0 to 50 °C (32 to +122 °F), idealbetween 10 and 35 °C, pressure: max. 20 bar (abs.)2 x potential-free, switch voltage 24 VDC / VAC, switch current 0.5 A, optional wiring as NC contact or NO contact,resolution 0.1 °C tpdor 0.1 °F tpd, measuring rate 1/sFree selection within measurement range through Order code, or set using P2A software24 VAC / VDC (20 to 30 VAC / VDC max.), power consumption 50 mA±4 K > -30 °C tpd(-22 °F tpd)±3 K > -20 °C tpd(-4 °F tpd)±2 K > -10 °C tpd(+14 °F tpd)±1 K > 0 °C tpd(32 °F tpd)Mini DIN interface (serial) for parameterisation/adjustment/analysis through P2A softwareStainless steel sintered filter (12 mm)G½ thread (Order code A01) or NPT½“ thread (Order code A02)Plastic PAA GF30, 167 x 33 x 33 mm, IP 65 (with adapter attached or with protective plate at interface), 240 g inweight0 to +50 °C (32 to +122 °F)-40 to +70 °C (-40 to +158 °F)In accordance with EU guideline 89/336/EECScale drawingRating plate33 42.1 91.8 5 Approx. 466 17Process thread G½ orNPT ½“1218.233Stainless steel sintered filterMini DIN interfaceProtective plate56Wrench size WS27Special plug (without cable)includedAccessories Ordering data5 m cable with special plug for testo 6721 as well as open line endsP2A software (parameterization, adjustment and analysis software for PC), with USB cable (for PC) to mini DIN (instrument)Prefilter, protects measurement chamber and sensor from dirt particlesMeasurement chamber for optimum flow on humidity sensor (standard compressed air connection / G ½), up to 15 barCooling coil, for process media below 10 °C or above 35 °C (to be added to measurement chamber)Alarm box for testo 6721 pressure dewpoint monitor, without cable (cf. page 3)Stainless steel sintered filter, pore size 100 µm, probe protection in dusty atmospheres or higher flow velocitiesMains unit (desk-top) 110 to 240 VAC/24 VDC (350mA)Mains unit (rail mounting) 90 to 264 VAC/ 24 VDC (2.5A)ISO calibration certificate with freely selectable adjustment point between -30 and 0 °C tpd, at 6 barISO calibration cert./humidity Calibration points freely selectable: +15 °C/-24.4 °C tpdor +25 °C/-7.49 °C tpdor +25 °C/+20.26 °C tpdPart no.0554 67200554 60200554 33110554 33030554 33040554 67220554 06470554 17480554 17490520 01160520 0106

94Monitoring trace humidity professionally with testo 6740Reliabletechnology –professionalintegrationBernd Rombach,ApplicationConsultationOur customersin industryappreciate ourreliabletechnology.Most customers,especially the“Key Accounts”of course, alsoexpectprofessional userconsultation. We help to integrateour products optimally into thecustomer’s process.testo 6740 can bescrewed directly into theprocessThe measuring chamberprovides optimum flowand fast installation anddeinstallationFor process temperaturesup to +200 °C: pre-fittingof the cooling coil and themeasurement chamberOptimum dryer monitoringand humidity regulation ofadsorption dryers

95Optimal for trace humidity measurementThe testo humidity probe is generally adjusted at several points, so thatonly minimal deviations occur. In addition to this, for trace humiditymeasurement an adjustment is carried out and documented at -40°Ctpd/-40 °Ftpd (pressure dewpoint) with the help of a highly accuratereference measurement (dewpoint mirror). Reliable and exactmeasurement values are thus available to the user in the relevant range (to-60 °Ctpd/-76 °Ftpd).Monitoring trace humidity, avoiding damageCompressed air, air and gases are used in all areas of industry. Humidity isusually undesired here, as it causes damage, or can also reduce thequality of the end product, as the diagram below shows.Production Distribution UserCompressor>>DryerCorrosion in pipes &functional componentsPneumatic drives:- interruption of lubrication- mechanical damageFormation of ice inrefrigerated and outsideareasThat’s why: reliable trace humidity measurement with testo 6740!e.g. Transport airfor pharmaceuticalpowdere.g. medicalcompressed airdamp powdersticks togetherBacterial growth(European druglegislation)In critical applications, testo 6740 monitors thecompressed air humidity directly before the user – e.g.in electronics production.NEW!For professional trace humidity measurement, see testo 6681 withprobe 6615• highest accuracy and very good long-term stabilty• exchangeable, adjustable probes• probe version specially for trace humidity• robust metal housing• option for Profibus DP interface• early warning reports/self-diagnosis• operation using the P2A software from Testo or directly via 4 buttons• traceability of all settings/reports via internal record• all common designs and signal outputs can be custmer-specificallyorderedIn high and medium voltage, SF 6is used to avoidswitch sparking. testo 6740 constantly monitorshumidity – this way, the exchange cycles of theexpensive gas can be maximized; damage is avoided.

96Assuring quality - lowering costsWhat is compressed air quality?The international norm ISO 8573 determines seven classes ofISO 8573Trace humidityTypical applicationcompressed air quality, and prescribes which humidity, which oilcontent, which particle content etc. the compressed air maycontain. Class 1 makes the highest demands. Class 4 isClass1°Ctpd °Ftpd g/m 3 ppm v(at 7 bar)-70-940.0030.37Semicond. prod.fulfilled, for example, when the pressure dewpoint does notexceed 3 °Ctpd or 37 °Ftpd or an absolute humidity of 6 g ofwater vapour per m 3 or 1083 ppm v(parts per million by23-40-20-40-40.120.8818147Granulate dryersTransport airvolume). The principle step taken to comply with a quality classconsists in the installation of a suitable dryer. Its monitoring and,43375.511083if needed, regulation, is dealt with by testo 6740.57447.281432Working/energy air610508.9317567––––Blow airHow can costs be lowered?The main purpose of the use of the testo 6740 consists in themonitoring and avoidance of excessively high humidity innetworks, in order to avoid damage. This damage leads toEquipmentMonitoring/regulationCompressed air dryertesto 6740considerable costs, especially if the quality of the end product isaffected. In addition to this, with the use of adsorption dryers,running costs can be considerably lowered.Pressure dewpoint(°Ctpd)Adsorption dryers:If chamber switchover is humidity-Alarm e.g. at-30 °Ctpdcontrolled using the testo 6740 ratherthan time controlled, (see diagram onthe right), the dry phases (blue) are85%Drycompressed airChamber switchovere.g. at -35 °Ctpdnormally considerably longer than theContainer Aregeneration phases (red). During thistime no regeneration air must be15%Dryingproduced, so that the compressorsRegenerationcan be reduced from 100% to about85% volume flow. This results insignificant savings in operating costs.Humidcompressed airContainer BDryingRegenerationTimeCooling dryers and membraneCooling dryerMembrane dryerdryers:Whether cooling dryers ormembrane dryers, withoutcontinuous monitoring of the dryer,damage can hardly be avoided.Blocked condensate drainageDrycompressed airHumidcompressed airCoolingcircuitExpansion of purge air(e.g. 6 => 1 bar)=> %RH -Humidcompressed airHumidpurge airDiffusion of watermolecules throughhollow fibremembranespipes and badly sealed by-passpipes are directly detected by toohigh humidity values.Dry compressed airTypical: -30 to -20 °Ctpde.g. 20 %RHe.g. 0.02 %RHCondensateBranching offof purge air

97testo 6740 – Features and Benefits• Highest relability- long-term reliable testo humidity sensor, tried and tested 100,000times- demonstrably correct indication of measurement ranges and data- highest manufacturing quality• Calculation of the most important trace humidity variables- e.g. °Ctpd, °Ctd atmospheric (°CtA), ppm vand absolute humidity• Factory adjustment report• Convenient operation- via the display without additional aids- without display via the internal interface and scaling adapter software- local 1-point calibrationBrightly lit 7-segment display (opt.)- housing can be rotated by 350°The optional switch outputplug (0554 3302) enables twooutputs to be used, whosestatus is displayed by twoLEDs, in addition to the 4...20mA output.• Analog output 4...20 mA (-wire)• 2 limit signal outputs (optional)- pre- and main alarmas potential-free contact- 2 LEDs display alarm statusThe long-term reliableTesto humidity sensorwith documentable finecalibration at a tracehumidity of -40 °Ctpd/-40 °FtpdIn adsorption dryers, testo 6740 monitors not only thetrace humidity highly reliably, it additionally serves theoptimal regulation – resulting in lower operating costs.The right process connection- G1/2 or NPT1/2“- pressure-tight up to 50 bar (725 psi)- optional with measurement chamberEasy menu operation via buttons- select humidity unit- alter scaling- set alarms incl. hysteresis- carry out 1-point calibration locally- test analog signal and alarm outputs- call up historical min./max. valuesTechnical data testo 6740HousingMaterialPlastic, polyacrylamideDimensions199.5x37x37 (analog output plug)203.5x37x37 ( limit signal output plug)Ambient temperature-20 to +70 °C (-4 to +158 °F)Storage temperature-40 to +80 °C (-40 to +176 °F)Protection class IP 65Rotation of housingby 350° (to align display)Sensor and sensor protectionHumidity sensorTesto humidity sensor with documentedtrace humidity adjustment at -40 °Ctpd (-40 °Ftpd)Temperature sensorNTCSensor protectionStainless steel sintered filterMeasurement inaccuracyHumidity+/- 1 K at 0 °Ctpd (32 °Ftpd)+/- 3 K at -20 °Ctpd (-4 °Ftpd)+/- 4 K at -40 °Ctpd (-40 °Ftpd)Temperature+/- 0.5 K (0 to 50 °C/32 to 122 °F)Limit signal outputs (optional alarm plug 0554. 3302)ContactsSwitch thresholds2 NO contacts, potential-free, max. 30 V/0.5 AStandard: 6°/12° Ctpd, display freely programmableMeasuring rangePressure dewpoint temperature(Trace humidity)TemperatureAtmospheric dewpointpsi)(cf. diagram p.70)psi)psi)Pressure resistance(217 psi)Analog outputSignalScaling-45 to +30 °Cptd (-49 ... +86 °Ftpd)at pressure dewpoints < 0 °Ctpd display offrost point, at > 0 °Ctpd of dewpoint0 to 50 °C (32 to +122 °Ftpd)- 80 to -15 °Ctpd (-112 to -5 °Ftpd) (at 30 bar rel./435-70 ... +10 °Ctpd (-94 to +50 °Ftpd) (at 3 bar rel./43.5-60 to +30 °Ctpd (-76 to +86 °Fptd) (at 0 bar rel./0testo 6740: Up to 50 bar absoluteMeas. chamber 0554.3303: up to 15 bar absolute4 to 20 mA, 2-wire technologyFreely scalable via display/buttonsStandard: 4 to 20 mA = -60 to +30 °CtpdOutput units °Ctpd, °Ftpd, °CtA, °FtA, %RH, ppm v, mg/m 3 , °C, °FResolution12 bitAccuracy +/- 40 µASupplyVoltage 24 V DC (10 to 30 V DC permitted); with alarm plug (0554 3302) 20 to 28 VDCCurrent21 mA (without alarm plug)65 mA (with alarm plug)Max. load10 V DC: 100 Ohm, 30 VDC: 950 OhmEMCAccording to guideline 89/336 EWG

98testo 6740: System components, ordering dataCustomer-specifically combinableEach measurement cell can be optimally equipped. Whetherwith or without display, with a European G ½ thread or anAmerican NPT ½” thread. Whether with or without switchoutput. Directly mounted, with a measurement chamber orcooling coil. All combinations are possible, ideal for yourrequirements.The 4 types of the testo 6740 lineG ½NPT ½”without display0555 67410555 6742Standard: analog output4 to 20 mA (2-wire)pressureproof up to 50 bar*(Online monitoring via testo 54-7 possible, cf. page 88-90)Optional alarm plug (0554 3302):2 switch output built-inanalog output 4...20 mA (2-wire)+ 2 switch outputs (potential-free)+ 2 LEDPush-in pressureconnection(plug NW 7.2)G ¼insidethreadG ½ insidethreadwith display0555 67430555 6744Measurement chamber (05543303)for optimum flow past theprobe (valve can be adjustedinfinitely) and for fast(de)installation (up to 15 bar).Preset at 1 l/min at 7 bar.Ordering data testo 6740Part no.Basic instrument (incl. plug for output analog signal)testo 6741, G½ thread, without display 0555 6741testo 6742, NPT½ thread, without display 0555 6742testo 6743, G½ thread, with display 0555 6743testo 6744, NPT½” thread, with display 0555 6744AccessoriesAlarm plug: Cable connection plug for power supply/analog output 4 to 20 mA, with 2floating switch contacts (standard: NO / optional: NC) and 2 LEDsMeasurement chamber for optimum flow on humidity sensor (standard compressedair connection / G ½), up to 15 bar (217 psi)Cooling coil for process temperatures above 50 °C/122 °F (up to 200 °C), withmeasurement chamber onlyScaling adapter for testo 6741/6742 incl. software => RS232 (on PC)ISO calibration certificate/pressure dew point, two adjustment points -10/-40 °C tpd at 6 barISO calibration certificate/humidity, Pressure dewpoint meters; calibration points freelyselectable from -40 to 0 °Ctpd at 6 bar (-40 to 32 °Ftpd) at 87 psiBasic priceper calibration pointtesto 54-2 AC process display, 2 relay outputs (to 250 VAC/300 VDC, 3 A), mainssupply: 90 to 260 VACtesto 54-7 AC process display, 2 relay outputs (to 250 VAC/300 VDC, 3 A), mainssupply 90 to 260 VAC, RS485 output for online monitoring and with totalizer display2 m Teflon hose with compressed air connections up to +140 °C/+284 °F (max. 9bar/130 psi), with measurement chamber onlyMains unit (desk-top) 110 to 240 VAC/24 VDC (350mA)Mains unit (rail mounting) 90 to 264 VAC/ 24 VDC (2.5A)testo 650, reference humidity measuring instrument 0563 6501 with precision pressuredewpoint probe 0636 9841 and connecting line 0430 01432 pressure adjustment device, for on-site adjustment of testo 6743 (from model June07. Otherwise firmware update necessary), also without reference measurementCustomer-specific instrument parameterization, incl. parameterization protocolSelection assistance: choose the right components for your applicationA For process temperatures > 50 °C (up C If neither A nor B are required: simplyto 200 °C), use cooling coil (0554 3304) screw directly into the G½ or NPT ½”& measurement chamber (0554 3303) thread. Pipe must be pressureless duringinstallationB Use measurement chamber (05543303) for fast installation (no need toswitch the system pressureless) and for D For dry air, (e.g. granulate dryers,a better probe reaction time (infinite max. 140 °C), a Teflon hose is used andadjustment of flow past probe)the measurement chamber’s valve isopenedA B Use a 40 µm filter for oily or dirtymediaPart no.0554 33020554 33030554 33040554 33050520 01360520 01160520 01160520 01165400 75535400 75550699 2824/40554 17480554 17490554 33140699 5889/1Cooling coil (0554 3304)Dtesto 6741for process temperatures 50to 200 °C/122 to 392 °F (onlywith measurement chamber)AG ½testo 6743with displayPush-in pressureconnection(socket NW 7.2)Push-in pressureconnection(plug NW 7.2)BTeflon hose (0699 2824/4)testo 6742for dry air up to +140 °C/284°F (only with measurementchamber)CCG ½ threadNPT ½” threadIn main pipe:behind dryerNPT ½” testo 6744with display

99testo 6740: The best operating conceptOptimum operation, whether with or without displayThe unit needs to be changed from °Ctpd to ppm vor the switching limit values corrected? These and many other settings are easily configured via thedisplay. Or, and this is particularly of advantage for OEM customers such as the manufacturers of compressed air dryers, these settings can be madeusing the scaling software 0554 3305 on a PC.With display, testo 6743, testo 6744 Without display, testo 6741, testo 6742Display and menu enable easy menu use at the highestcomfort for the userThe scaling software enables mobile access, perfect forOEM solutions or maintenance staff• Change unitscf. below “The• Set absolute pressure• Firmware version• Change scalingdisplay menu”• Display min./max. value• Digital values• One-point adjustment• Test analog output• Keyboard test etc.• Reset• Set/test analog output etc.• Further informationThe display menuCompletely practice-oriented. Changing display values and units, switching off the display, password protection, the choice of units etc. Try it out. Weare certain you will like it.Alternating display 1Measure value 6 s Unit 2 sMeasuring modeSET3CODESETUNITPROGALARMADJRSTNo displayDisplay canbe switched off2Select unit°Ctpd°Ftpd°Ctd**°Ftd**%RHppm v**mg/m 3°C°F321Min. valuesMax. valuesUser codeTime delayOn/offOn/offAnalog signal testAbs. pressure**Low alarmHigh alarmHysteresisTest switchoutputsReferencevalue inputThe optimumone-pointadjustment. Adewpoint mirrorisrecommendedas a reference.ResetDefine scale4 mA *20 mA ** testo 6740 prescribes typical scale default values for the selected UNIT.These can be freely altered.** Process pressure input only required if ppm vor °Ctd/°Ftd selected asstarting unit. For all other humidity parameters, the testo 6740 requiresabsolutely no pressure compensation – exact measurement even withfluctuating process pressure!

100Pressure dewpoint or atmospheric dewpoint? - Wiring (testo 6740)Pressure dewpoint or atmospheric dewpoint?Atmospheric air is able to store more water vapour thancompressed air. If compressed air is cooled down, it alreadyreaches its dewpoint (“pressure dewpoint” in °Ctpd or °Ftpd)at higher temperatures, whereas atmospheric air can becooled down further before condensate is first precipitated(atmospheric dewpoint in °Ctd or °Ftd).Only the pressure dewpoint is relevant to the monitoring ofcompressed air systems for trace humidity, because thisindicates how far away the “danger threshhold” (= dewpoint)is. Since some users are accustomed to working with anatmospheric dewpoint, however, the testo 6740 allows thechoice of the outputs pressure dewpoint and atmosphericdewpoint ( the absolute process pressure is input for thelatter).Pressure dewpoint [°Ctpd]0,0036050403020100-10-20-300,0110,0381Absolute humidity [g/m 3 ] at 1 bar abs / 25 °C0,1170,3300,690Positive pressure p 0[bar]702,1563524,868149,356742,5017.14830,07850,672-4012Compressed air (35 bar) is relieved to 4 bar. The pressuredewpoint thus falls from 10 °Ctpd to -23 °Ctpd.Compressed air (7 bar) has a pressure dewpoint of 20°Ctpd. This corresponds to an atmospheric dewpoint ofof -8 °Ctd.-50-60-70-70 -60-50 -40 -30 -20 -10 0 10 20 30 40Atmospheric dewpoint [°Ctd]The electrical wiring What is the load R L?The total resistance of the 2-wire connenction,4 to 20 mAconsisting of the wire, display and control.ASignal +Standard plug (4 to 20 mA, 2-wire)With switch contact plugOrder Nr. (0554 3302)(4 to 20 mA, 2-wire plus 2potential-free switch contacts):8-core cableBSignal - U=12 to 30VDCR L4 to 20 mASignal +Signal -U=20 to 28VDCR LSupply +Supply -ON, if value is > US+HYSUS ±OFF, if value < US-HYSR L= Load impedance, external loadU10 V24 V30 VBA300 Ohm650 Ohm950 OhmB–650 Ohm–LS = Lower Switch US = Upper SwitchOFFLSHYSONOFFUSHYSON°CtpdLS ±ON, if value > LS+HYSOFF, if value < LS-HYS

101Measurement accuracy depends on process temperatureMeasurement uncertainty atdiverse process temperatures-20-25Display value 6740 / °Ctpd-30-35-40-45-50-5525 °C35 °C50 °CDisplay = Target value25 °C35 °C50 °CTarget Sollwert val./°td / 25°C35°C50°C-60-60 -55 -50 -45 -40 -35 -30 -25 -20Target value/ °Ctpd (process pressure dewpoint)Example:At -30 °Ctpd and25 °C processtemperature ±3 KuncertaintyAs can be seen in the diagram, measurement accuracy depends on the process temperature and pressure dewpoint range. To achieve the bestmeasurement results using testo 6740, a process temperature range of preferably 25 °C and a pressure dewpoint range of greater than -45 °Ctpdshould be ensured.

102On-site trace humidity adjustment – Now without reference instrumentDiagram of 2-pressure adjustment90°P10554 3314testo 6743P2Why adjust on-site?Pressure dewpoint transmitters, such as testo 6743, monitorcompressed air driers continuously. Is the compressed air dryenough? Is there any moisture damage to the compressed aircomponents? Is the final product protected from moisture?To guarantee long-term accurate and reliable monitoring, pressuredewpoint transmitters are adjusted regularly, i.e. compared with areliable reference and corrected.Up to now, this adjustment was usually carried out using a dewpointmirror. This method requires time-consuming and costly measures:deinstallation of transmitter, purchase and connection of a dewpointmirror, reference measurement and corrections to the transmitter.With some products, it is even necessary to send the unit to themanufacturer.Patented Testo solution: On-site 2-pressure adjustmentTesto recognises the problem and has developed a cost-savingalternative which does not compromise on accuracy.%RH%RH 1%RH 2This patented procedure makes use of the fact that different humidityvalues result from different pressure values. The 2-pressureadjustment device 0554 3314 is simply mounted between processand testo 6743* (compressed air quick couplings). Using the built-invalve, a pressure divider is created which lowers testo 6743* fromprocess pressure P1 at humidity value %RH 1 to a defined lowerpressure level P2. This results in a defined, lower humidity value%RH 2.P2P1PAdjustment is then simply confirmed using the operating menu oftesto 6743*. The result is a fast and cost-saving adjustment which istotally convincing on account of its accuracy!*From model June 07. For older models, a firmware update isnecessary, please consult Testo.Scale drawingG½ thread for testo 6743199 mm ±2 mmValve handleQuick couplingDiameter: 7.253 mm±2 mmBenefits?– No reference instrument necessary (dewpoint mirrors are veryexpensive)– No need to dismantle instrument or send to manufacturer– One adjustment device is sufficient for any number of measurementpoints– High accuracy is achieved quickly

Notes103

104Compressed air counter testo 6440Saving costs withconsumptionmeasurementFrank Peichl,Area ManagerAlmost all ourcustomers areforced to save.In somecompanies, thismeans thatnecessaryinvestments arepostponed.Other, futureorientedcompanies invest insavings. A classical example ofthis is compressed airconsumption measurement: Onlywhen leakage is detected andconsumption is allocated to itsoriginator can high compressedair costs be gradually lowered.And the investment incompressed air counters isquickly paid back in reducedoperating costs.The easy-to-use operatingmenu enables everyparameterizationSensitive and robust atthe same time – theceramic flow-throughsensorWhether leakagedetection or costdistribution by originator:The testo 6440 helps tosave operating costsAll required signalsintegrated – from theanalog output up to thetotaliser

105Saving compressed air costs with testo 6440Why does industry need compressed air counters?For media such as current, water or gases, completetransparency is guaranteed in every industrial company:Central counters reflect the quantities used; decentralizedcounters show how consumption is distributed.The medium compressed air however, is produced anddistributed internally, without knowing how much is usedin total and in the individual departments. Without thisknowledge, there is no motivation to eliminate leakages orachieve more economical use.Current, water, gasCost transparency through metersClear allocation of costs to– departments– products...Compressed airCosts “disappear” in– electricity costs– maintenance costs– often: overhead costsCompressed air =“creeping assets-consumer”Leakage - a high cost factorIndependent investigations, for example by theFraunhofer Intitute in the course of the measurementcampaign “Compressed air efficiency”, have proven thatbetween 25 and 40% of compressed air produced iswasted through leakage. Leakage holes with a diameterof 3 mm already lead to costs amounting to 3,000Euro/annum.If the necessary extra investments are added to theoperating costs, the wastage adds up to over 100,000Euros per year in an average industrial company.Leakage-share: 25...40 %225...360 MWhà 15 cents / KWh= 33,750...54,000 Euros= leakage-share of operatingcosts150 kW6,000 h= 900,000 kWhElectrical energyLeakagesProcessingLeakage detection with the testo 6440Over 96% of leakages occur in pipes DN50 and smaller.Leaky hoses, fittings, couplings and maintenance unitsare mainly responsible for this.Installed in front of a machine or a machine group, thetesto 6440 detects the smallest compressed air volumeflows. These indicate leakages if they occur when thesystem is inactive.It is also an indicator for leakage when known max.-volume flows are exceeded when the user profile isunchanged. The integrated switch outputs of the testo6440 are thus the best leakage detector in practice.ConsumerSuspicion of leakagesif...... despite downtime: Flow rate > 0... despite unchanged application: Increasing flow rateDetection and elimination (continuously, not 1x annually)

106Saving compressed air costs with testo 6440PreparationSystem A$96,500Lowering costs by consumer-allocationCompressed air is a profitable, but also very costly energysource. If the high costs are only allocated as a “costblock”, those responsible for the systems have nomotivation to try and lower costs.Investment, operation and staffTotal compressed air costs: $245,000consumer allocationSystem B$63,500System C$85,000• Motivation to save costs• Basis of figures for energy management or eco-audit according to ISO 14.000However, if the compressed air consumption of eachsystem is recorded individually, the person responsible forthe system is motivated to reduces leakage and toemploy consumption-saving measures.The testo 6440 provides optimal support here, in that ithas a built-in totaliser function. The total consumptioncan be read directly from the instrument or registered inthe regulating system via consumption impulses.Consumption-dependant switch outputs are alternativelyalso available, which can monitor consumptiondependently or independently of time.Nm 3 /hNm 3 /hPeak loadcapacity ofexistingcompressorsPeak load management helps to avoid extendedinvestmentsGrowth can be expensive: Expanding industrialenterprises (example: new system D) are forced toexpand their compressed air production too.A peak load analysis on the basis of compressed aircounters helps to avoid such investments. Since it isknown when which consumption occurs, the distributioncan be specifically regulated so that the existing capacityof compressed air production is sufficient. The result isconsiderable savings in the compressors as well as in thepipe system.Daily profile of compressed air production(Valuable) compressed air consumerProtecting valuable compressed air consumers from toohigh or too low supplyCompressed air consumers require a minimal supply inorder to provide the desired performance.Nm 3 /hInvestment protectionOK rangeLoss of warrantythrough overload orundersupplyEarly alarmSome consumers additionally have to be protected fromtoo high a supply. In some cases, the warranty of thesystem’s manufacturer is even dependent on this.The testo 6440 performs both tasks optimally thanks toits two switch outputs. For the continuous protection ofyour investment.Time

107Compressed air counter testo 6440: The measurement principleThe optimal measurement principle......for compressed air norm volume flow measurement isthermal mass flow measurement. Only this– is independent of process pressure and temperature– causes no permanent loss of pressureHeating of R hNo heating; R T assumesgas temperatureTwo glass-coated ceramic sensors developed speciallyfor demanding compressed air application are exposed tothe process temperature and switched with aWheatstone bridge.m[kg/h]MassflowWheatstonebridgem smallm large27 °C 20 °CControl: constant over-temperatureI h must deliver only slight heatingperformance (= R h * I h2)I h must deliver high heatingperformancei.e. I h is a function for mass flowWhy is the measurement of mass flow pressure andtemperature independent?Volume is compressed with rising pressure. The mass,however, remains unchanged, as the adjacent ill. shows.It follows that only mass flow measurement is suitable foruse in fluctuating pressure conditions. An influencing bythe temperature can also be avoided by means of acompensation. This way, the measurement value can beused optimally in the entire range of process temperature.P = 1 barV = 10 m 3rho = 1.4 kg/m 3m = 14 kgCompression lowers the volume, but not the mass:P = 5 barV = 2 m 3rho = 7 kg/m 3m = 14 kg14 kg/h Mass flow measurement14 kg/h10 m 3 /hVolume flow measurement2 m 3 /h Only mass flow measurement gives correct values, if pressurizedHow does mass flow become norm volume flow?For the compressed air consumer, norm volume flow isthe most important flow function. It refers not to thecurrent ambient conditions, but to fixed values; accordingto ISO 2533, these are the values15 °C /1013 hPa / 0 %RH. The testo 6440 divides themass flow value by the norm density, which is generally1.225 kg/Nm 3 . The result is the pressure and temperatureindependent norm volume flow value. When comparingmeasurements made with other measurement systems, itmust be ensured that all values refer to the same normconditions; otherwise a conversion calculation isnecessary.m[kg/h]Massflow1rho Nf (T), i.e. temperature independentf (P), i.e. pressure independentNorm density,constant valueMeasurementprincipletesto 6440according to ISO 253315 °C / 1013 hPa / 0 %RHi.e. rho N= 1.225 kg/Nm 3[Nm 3 /h]Norm volumeflowf (T), also temperature independentf (P), also pressure independentOutputparametertesto 6440

108Compressed air counter testo 6440: Instrument and featuresTesto offers four compact modelsfor the four most common compressed air DN in industryFor all important diameters: the compressed air countertesto 6440In four diameter sizes, the testo 6440 offers a compactdesign coupled with integrated high-performancetechnology, which provides all necessary signal outputs.The built-in inflow and outflow pipes allow optimumaccuracy.The thermal, glass-coated ceramic sensor offersrobustness at the same time as fastest reaction times.2,3 to 700 Nm 3 /htesto 6444(DN 50) (2”)1,3 to 410 Nm 3 /htesto 6443(DN 40) (1½”)0,75 to 225 Nm 3 /htesto 6442(DN 25) (1”)0,25 to 75 Nm 3 /htesto 6441(DN 15) (½”)With its superior design, the testo 6440 offers an optimal flow profileExact positioning ofthe sensor in themeasurement pipeNo unevenness inside the measurementpipe (e.g. flange recesses)Superior design from the sensor to the housingIn contrast to the penetration probes used bycompetitors, the sensor in the testo 6440 has a positionin the pipe which is exactly known and always the same.With penetration probes, a tilt out of the vertical of 5°already leads to a measurement inaccuracy of 5%.Measurement pipe: sensorintegrated in inflow/outflowNo sensor tiltingIn the testo 6440, not only are the inflow and outflowpipes integrated (reduced lengths in DN40/DN50), theyalso have completely even surfaces (i.e. no flangerecesses etc.)Many clever details in the design of testo 6440 ensurethat the flow profile remains constant and that anoptimum of accuracy can be achieved.Flow stabilization withstraight pipe sectionstilted by 5° > 5%inaccuracyConventional measuring solutionsInterior diameter can vary widelylarge measurement errorSource: VDI report 1681/2002Nominaldiameterknowntesto 6440:exactly known interior diameterDefined interior diameter and volume flow adjustment forhighest accuracyEspecially in small diameters, the exact knowledge of theinterior diameter plays a deciding part in achievingaccurate measurements of norm volume flow.Commercially available penetration probes measure theflow velocity and calculate the volume flow bymultiplication with the cross-section area. As shown inthe illustration, even normed pipes can vary in interiordiameter to such a degree that inaccuracies of up to 50%are possible.The testo 6440 has an exactly known diameter – and isadjusted directly according to norm volume flow, and notflow velocity!

109Compressed air counter testo 6440: Operation and signal outputsThe optimal operation menu: simple - and complete!You wish to change the physical unit (Nm 3 /h, Nl/min,Nm 3 , °C)? Signal outputs need to be parameterised?Min./max. values need to be read? The signal is to bedampened or delayed? You want to reset the totaliser? Allthese functions and many more are combined in oneeasy-to-use menu.Practice is our yardstick – the LED display is easily legibleeven in machine halls, it can be rotated by 180°, and thedisplay/operation menu can additionally be switched offor locked.Simple operation via only 2operating buttonsEasily legible LED display(Rotatable by 180°)Menu overviewMeasuringmodeOutput 1(OUT 1)Output 2(OUT 2)extendedfunctionsMeasuringmode... ( s. above)= Nm 3 before last resetHighest versatility: testo 6440 offers the required signalsfor every applicationTwo signal outputs can be parameterized specific toapplication (see ill. right and below). This way, allapplications can be represented:– Consumption measurement (pulse output)– Consumption monitoring (pre-selection counter, i.e.quantity-dependent switch output, time-dependent ortime-independent)– Leakage monitoring (volume flow-dependent switchoutput or analog output)– Flow-through measurement (analog output)Signal outputs suited to applicationApplicationSignaloutputs1Leakdetection4 to 20 mA +limit valuemonitoringin PLCorRelay outputtimedependent(ON, if LVis reachedbefore Time T)2Consumptionmeasurement4 to 20 mA +Σ in PLCorPulse +counting inPLC3Peak loadmanagement4 to 20 mA4Min/MaxmonitoringNm 3 /h Nm 3 Nm 3 /h Nm 3 /h Nm 3MAX4 to 20 mA +limit valuemonitoringin PLCor1 switchoutput MIN1 switchoutput MAX5DosageStopMINt t t t0 24 h4 to 20 mA +Σ in PLCorPulse +counting inPLCorSwitchoutput(ON, once LVis reached)Totaliser without additional evaluation unitThe testo 6440 is equipped with integrated totaliserfunctions (consumption quantity, e.g. in Nm 3 ), which canbe used either in the display or as pulse outputs or switchoutputs. Make the comparison for yourself: otherproviders need additional, external evaluation units forthese important functions. You can save these costly andtime-consuming investments and wirings with the testo6440.testo 6440 M12plugSwitchoutputSwitchoutput4 alternatives (freely parameterable)SwitchoutputPulseoutput*Pulseoutput*Switch4...20 mA 4...20 mAoutput* Alternatively usable as sum-dependent switch ouput (pre-selection counter)

110Compressed air counter testo 6440: Dimensional drawingtesto 6441DN 15 (for 1/2“ pipes)testo 6442DN 25 (for 1“ pipes)DN 40 (for 1 1/2“ pipes)testo 6443DN 50 (for 2“ pipes)testo 644410000Area of excessive flowvelocity (>120 Nm/s)Nm 3 /hV100010010DN200DN150DN100DN80DN50DN40DN2510,1 01 10 100 1000DN15Example:A nominal pipe diameter of DN40 can still beused at 100 Nm 3 /h.This results in approx. 21 Nm/s.At P = 8 bar (116 psi), this corresponds to anactual flow velocity of 2.6 m/s.Nm/sP 0P absT 0T absm/sT abs= Process temperature (°C) +273.15 T 0= Norm temperature, here 15 °CP 0= Norm pressure, here 1013.25 hPa P abs= Process pressure, here (hPa)Note: the nominal diamter was used as the respective inner diamter.

111Compressed air counter testo 6440: Technical data and ordering data / Ordering dataTechnical data compressed air counter testo 6440Part no.Pipe diametertesto 64410555 6441DN 15 (for 1/2“ pipes)testo 6442 testo 6443 testo 64440555 64420555 64430555 6444DN 25 (for 1“ pipes)DN 40 (for 1 1/2“ pipes) DN 50 (for 2“ pipes)Measuring range (1:300)0.25 to 75 Nm 3 /h0.75 to 225 Nm 3 /h1.3 to 410 Nm 3 /h2.3 to 700 Nm 3 /hMax. display value90 Nm 3 /h270 Nm 3 /h492 Nm 3 /h840 Nm 3 /hMeasuring stretch: Thread (bothsides) / MaterialR 1/2, outer threadStainless steel 1.4301R1, outer threadStainless steel 1.4301R1 1/2, outer threadStainless steel 1.4401R2, outer threadStainless steel 1.4401Length measurement pipe300 mm475 mm475 mm (shortenedmeasurement stretches)475 mm (shortenedmeasurement stretches)Weight0.9 kg1.1 kg3.0 kg3.8 kgSensorThermal glass-coated ceramic sensorAccuracyReaction timeTemperature displayDisplay, operationDisplay unitsElectrical connectionPower supplyOutput signalsPulse outputAnalog outputSwitch outputProcess conditionsAmbient temperatureStorage temperatureResource contactHousingEMCStandard referencefor compressed air quality classes (ISO 8573: particles – humidity – oil) 1-4-1: ±3% of reading ±0.3% of final valuecf. Compressed air qualityfor compressed air quality classes (ISO 8573: particles – humidity – oil) 3-4-4: ±6% of reading ±0.6% of final valuep. 96< 0.1 sec (for damping parameter = 0), delay via operating menu (0 s to 1 s)0 to +60 °C, inaccuracy ±2K (32 to +140 °F)4-figure alpha-numeric display, two operation buttons, operating menu, LED (4x green for phys. units, 3x yellow for “display x1,000” or switch status)Nm 3 /h, Nl/min, Nm 3 , °C (selected unit displayed by green LED)M12x1 plug, load to 250 mA, short circuit-proof (synchronized), reverse polarity-proof, overload-proof.Testo recommends accessory cable Part no. 0699 339319 to 30 VDC, current consumption < 100 mAVia operating menu, 4 combinations are parameterable, s. page 85Consumption meter (value available after reset or power loss due to non-volatile memory),value 1 or 10 Nm 3 , pulse length 0.02 s to 2 s, 24 VDC level4 to 20 mA (4-wire), max. load 500 Ohm, freely scalable from 0 to end of measuring range2 switch outputs, parameterable, (dependent on consumption or volume flow, NO contact, NC contact, hysteresis, window),loadable with max. 19 to 30 VDC or 250 mA each, switch status is displayed via 2 LEDs0 to +60 °C (32 to +140 °F), PN 16 (max. 16 bar/232 psi), rel. humidity < 90 %RH, air quality ISO 8573: recommended classes 1-4-10 to +60 °C (32 to +140 °F)-25 to +85 °C (-13 to +185 °F)Materials: stainless steel or zinc coated, PEEK, polyester, viton, anodized aluminium, ceramicPBT (GF 20%), zinc diecast, IP65 / IIIIn accordance with guideline 89/336 EECStandard flow (e.g. Nm/s) and standard volume flow (e.g. Nm 3 /h) are based on DIN ISO 2533, 15 °C, 1013.25 mbar, 0 %RHOrdering dataPart no.testo 6441 Compressed air counter DN 15 / ½" *0555 6441testo 6442 Compressed air counter DN 25 / 1" * 0555 6442testo 6443 Compressed air counter DN 40 / 1½" * 0555 6443testo 6444 Compressed air counter DN 50 / 2" * 0555 6444Connection cable 5 m long, with M12x1 socket / open wire ends 0699 3393testo 54-2 AC process display, 2 relay outputs (to 250 VAC/300 VDC, 3 A), mains supply: 90 to 260 VAC 5400 7553testo 54-7 AC process display, 2 relay outputs (to 250 VAC/300 VDC, 3 A), mains supply 90 to 260 VAC, RS485 output for onlinemonitoring and with totalizer display5400 7555Customer-specific instrument parameterization, incl. parameterization protocol 0699 5889/1Compressed air paddle switch for detecting the compressed air flow direction 0699 5913/1Mains unit (desk-top) 110 to 240 VAC/24 VDC (350mA) 0554 1748Mains unit (rail mounting) 90 to 264 VAC/ 24 VDC (2.5A) 0554 1749ISO calibration at 5 measurement points, to 250 Nm3/h (testo 6441 / 6442) 0520 0174DKD calibration at 5 measurement points, to 250 Nm3/h (testo 6441 / 6442) 0520 0274ISO calibration at 5 measurement points, to 1600 Nm3/h (testo 6443 / 6444) 0520 0184DKD calibration at 5 measurement points, to 1600 Nm3/h (6443 / 6444) 0520 0284* a connection cable, e.g. part no. 0699 3393, is required for operation

112Compressed air counter testo 6446/47: for large pipe diameterstesto 6446 – The convincing standard solutionThere are a number of compressed air counters for larger diameterson the market which use a inserted probe. At first glance, thesesolutions appear attractive because installation is comparatively easy.However, if the probe is turned by just a few degrees, it causes hugemeasurement errors. As a result, there are far greater inaccuracies inthe field than would appear from looking at the technical data.Testo has solved this problem with testo 6446: thanks to amechanically highly accurate measurement block, the thermal sensoris always properly positioned – horizontally, vertically and as regardsthe tilt angle.testo 6447 – With probe removal under pressureThis version offers everything the testo 6446 offers but with proberemoval as an extra.Particularly with large diameters, important compressed air pipelinesor even the main line after preparation are involved. System availabilityis therefore very important. While for this reason for othermeasurement solutions a bypass is required, in testo 6447 thepatented screw connection is simply applied – and the entire sensorincluding the electronics can be removed, even under pressure.Recalibration, cleaning, replacement – no system downtime... andthat’s without a bypass!6446Two outputs can be used simultaneously:– Pulse output– Analog output– Switch output63All versions with display– Display Flow and– Display ConsumptionMechanical protectionfrom unauthorizeddismantling or turning6447149 mm(removal:174 mm)Probe removal underpressure thanks topatented screw fitting,tightly closing to PN16DDefined, positionedprobe assembly Minimum measurementerrorsHMounting: Weldingconnection to Compacwelding neck flange,depressurized process100 mm FDiameter DataDN*mmDNinchLengthInlet pipe mm(without obstructions)Length (mm)testo 0699644xDmmFmmHmmLengthOutlet pipe mm(without obstructions)Weight(g)*PulsevalueNm 3 /Pul.Measurement rangeNm 3 /h652½97512470,3121253259.30016 to 2.000803120013082,51514140011.56019 to 2.75010041500130107,11516550013.7401015 to 4.44012551875136131,71820562521.6201023 to 7.00015062250140159,32023575026.4001033 to 10.00020083000140207,320290100036.9801058 to 17.500250103750148260,424335125049.4001092 to 27.500*The weights stated refer to testo 6447, for testo 6446, subtract 1400 g.

113Compressed air counter testo 6446/47: Technical data/ordering dataTechnical data of all versionsSensorResourceAccuracyPressure dependencyTemperature dependencyReaction timeTemperature displayDisplay, operationDisplay unitsElectrical connectionPower supplyOutput signalsPulse outputAnalog outputSwitch outputProcess conditionsAmbient temperatureStorage temperatureResource contactHousingEMCStandard referenceThermal, glass passivated ceramic sensorCompressed air (process conditions, see below), also CO 2or N 2on requestfor compressed air quality classes (ISO 8573: particle – humidity – oil) 1-4-1: ±3 % of reading ±0.3 % of full-scale valuefor compressed air quality classes (ISO 8573: particle – humidity – oil) 3-4-4: ±6 % of reading ±0.6 % of full-scale valueDoes not apply on account of thermal measurement principle (mass flow base)Minimized by stored temperature coefficients< 0.1 sec (for damping parameter = 0), delay via operating menu (0 s to 1 s)0 to +60 °C, inaccuracy ±2K (32 to +140 °F)4-figure alpha-numeric display, two operation buttons, operating menu, LED (4x green for phys. units, 3xyellow for “display x 1,000” or switch status)Nm 3 /h, Nl/min, Nm 3 , °C (selected unit displayed by green LED)M12x1 plug, load to 250 mA, short circuit-proof (synchronized), reverse polarity-proof, overload-proof.Testo recommends accessory cable Part no. 0699 339319 to 30 VDC, current consumption < 100 mAVia operating menu, 4 combinations are parameterable, cf. page 3Consumption meter (value available after reset or power loss due to non-volatile memory),value 1 or 10 Nm 3 , pulse length 0.02 s to 2 s, 24 VDC level4 to 20 mA (4-wire), max. load 500 Ohm, freely scalable from 0 to end of measuring range2 switch outputs, parameterable, (dependent on consumption or volume flow, NO contact, NC contact, hysteresis,window), loadable with max. 19 to 30 VDC or 250 mA each, switch status is displayed via 2 LEDs0 to +60 °C (32 to +140 °F), PN 16 (max. 16 bar/232 psi), rel. humidity < 90 %RH, air quality ISO 8573: recommended classes 1-4-10 to +60 °C (32 to +140 °F)-25 to +85 °C (-13 to +185 °F)Materials: stainless steel or zinc coated, PEEK, polyester, viton, anodized aluminium, ceramicPBT (GF 20%), zinc diecast, IP65 / IIIIn accordance with guideline 89/336 EECStandard flow (e.g. Nm/s) and standard volume flow (e.g. Nm 3 /h) are based on DIN ISO 2533, 15 °C, 1013.25 mbar, 0 %RHOrdering data for Testo Compressed Air MeterDN*mmVersionsDNinchMaterial Steel,Zinc coated0699 6446 / ...(standard solution)MaterialStainless steelMaterial Steel,Zinc coated0699 6447 / ...(with probe removal under pressure)MaterialStainless steel65801001251502002502½3456810... / 1... / 2... / 3... / 4... / 5... / 6... / 7... / 11... / 12... / 13... / 14... / 15... / 16... / 17... / 1... / 2... / 3... / 4... / 5... / 6... / 7Order example: A compressed air meter DN 150 with probe removal under pressure and stainless steel has Part no. 0699 6447 / 15*Customer-specific diameters between 65 mm and 250 mm are available on requestAccessories Ordering dataConnection cable 5 m long, with M12x1 socket / open wire endstesto 54-2 AC process display, 2 relay outputs (to 250 VAC/300 VDC, 3 A), mains supply: 90 to 260 VACtesto 54-7 AC process display, 2 relay outputs (to 250 VAC/300 VDC, 3 A), mains supply 90 to 260 VAC, RS485output for online monitoring and with totalizer displayMains unit (desk-top) 110 to 240 VAC/24 VDC (350mA)Mains unit (rail mounting) 90 to 264 VAC/ 24 VDC (2.5A)Replacement sensor for testo 6446Replacement sensor for testo 6447Sealing plug for testo 6446Cable for potential separation, length 5 mISO calibration certificate 2-point basis (DN65 to DN250)ISO calibration certificate: additional pointDKD calibration certificate: 2-point basis (DN65 to DN250)DKD calibration certificate: additional point... / 11... / 12... / 13... / 14... / 15... / 16... / 17Part no.0699 33935400 75535400 75550554 17480554 17490699 6446/310699 6447/310699 6446/410699 6446/420699 6447/210699 6447/220699 6447/230699 6447/24

114Compressed air counter 6445ApplicationWhy does industry need compressed air counters?Media such as current, water and gas have complete transparency inevery industrial company: main meters reflect the quantities used,while decentralised meters show how consumption is distributed.Compressed air, on the other hand, is generated internally anddistributed without it being known as to how much is consumed intotal and in individual areas. Without having this knowledge, however,there is no motivation to repair leaks or to aim for more economicalconsumption.In addition, compressed air meters offer the possibility of continuousmonitoring for leakage, which accounts for approx. 35 percent of allcompressed air consumption.Current, water, gasClear cost allocation to- departments- products ...Compressed air:“creeping assets consumer”Compressed airCosts “disappear” in- electricity costs- maintenance costs- often: overhead costsFeatures4 510699 6445/1 (standard compressed aircounter)All relevantsignal outputs on boardor214 to 20 mA/pulse42340699 6445/2 (up to 150 Nm/s)0699 6445/3 (display, optional)· Totaliser function (volume display)· Normalized velocity or vol. flow display· Physical units selectable via software [4]0699 6445/4(distributor box, cable and software)· IP 65 distributor box, wall mountingpossible· RS-232 jack for programming· CD with programming software· Two cable entries + signal cable (10 m)· Internal screw connectors· Analog output 4 to 20 mA (4-wire)= normalized velocityvalue or normalized volumeflow value· Pulse output (consumption)· Voltage supply 12 to 24 VDC· RS232 output forparameterisation [4]· 5-point calibration certificateincluded (standard)50699 6445/5 (10 m cable)3Safety chain(included in delivery)Precision connectorsocketRobust, thermal siliconchip sensor (mass flowprinciple)Clamp ring screw connection (included in delivery)Standard length = 400 mm(also ideal for 1/2“ ball valve)Stainless steel probe diameter 1/2“ (12.7 mm)

115Compressed air counter 6445Selecting a compressed air counter1 2· How high is the maximumnominal volume flow in yourprocess?· Select appropriatecompressed air counter1 0699 6445/124 mA = 0 Nm/s,20 mA = 80 Nm/s0699 6445/24 mA = 0 Nm/s,20 mA = 150 Nm/sExampleAt 1000 Nm3/h and with anominal pipe diameter of DN150,a flow velocity of approx. 15Nm/s follows. Here, the standardversion 0699 6445/1 (up to 80Nm/s)can be used. Select model0699 6445/2 between 80 and150 Nm/s.Caution!The respective nominal diameterwas used as the internal diameterin the calculationNm 3 /hArea of toohigh flowvelocity(>150 Nm/s)Nm/sMechanical assembly(Observe the operating instructions! These areonly brief schematic instructions)1. Observe straight pipe lengths forupstream/downstream obstacles 20x DN(upstream), 5x DN (downstream)2. Any desired installation position allowed; min. 2Nm/s with vertical pipes3. Depressurize pipe4. Install the 1/2“ clamp ring screw-connection ora 1/2“ ball valve5. Measure the pipe internal diameter forconversion later on:πFlow velocity (Nm/s) x x4(internal diameter) 2x blocking factor= volume flow [Nm 3 /s]6. Guide in probe up to the middle of the pipe7. Align exactly; observe volume flow directionarrow8. Safeguard with clamp screw connection andsafety chainDimensionsElectrical connectionIllustration of socket assignment on instrument(precision connector socket)56471382Signal Wire colour Colour Contact0 Volt Brown 2+12 to 24 Volt Red 8RX White 1TX Green 34 to 20 mA - Blue 74 to 20 mA + Yellow 4Pulse + Orange 6Pulse - Grey 5Shield – x

116Compressed air counter 6445Technical dataSensorThermal silicon chip sensor, mass flow principleMediaCompressed air, air, nitrogen, non-corrosive gases (attention: not approved for use in explosive areas)DisplayOptional, order no. 0699 6445/3, two-lineMeasuring range 0 to 80 Nm/s, min. 1 Nm/s (0699 6445/1) or 0 to 150 Nm/s, min. 2 Nm/s (0699 6445/2)Accuracy+/- 3 % of reading +/- 0.4 % of final valuePressure dependencyMeasuring principle independent of pressure (mass flow measurement). For flow rates < 10 Nm/s: pressure influence 0.3 % of reading per barTemperature dependencyCompensated at 25 °C (+77 °F), for deviating temperatures: 0.1 % of reading/KelvinResponse timet 90approx. 5 secondsVoltage supply12 to 24 VDC +/- 10 %, power consumption < 100 mA (starting current briefly 500 mA)Electrical connection Precision plug connection for distributor box,(0699 6445/4) or for cable (0699 6445/5)Analog output4 to 20 mA = 0 to 80 Nm/s or 0 to 150 Nm/s, 4-wire, max. load = 500 W, max. length 250 m (use shielded cable!)Pulse outputFloating contact, 12 to 24 V DC switching voltage from external meter, corresponding to S0 meter signal (DIN 43864). Pulse rate ispreset, depending on the internal diameterDigital output RS232, max. cable length 15 meters, easily accessible in conjunction with distributor box 0699 6445/4Process conditions0 to +50 °C/32 ... +122 °F (ideal at 20 to 30 °C), PN 16 (max. 16 bar/232 psi), rel. humidity < 90 % RH (no remaining effect after redrying),air quality (ISO 8573: Classes 1/4/1)Ambient temperatureStorage temperatureNormalization reference-10 to +60 °C (-14 ... +140 °F)-40 to +80 °C. Avoid ice build-up (-40 ... +176 °F)Standard flow velocity (e.g. Nm/s) and normalized volume flow (e.g. Nm 3 /h) are in reference to DIN ISO 2533, 15 °C, 1013.25 mbar, 0 %RHWeightCompressed air counter: 840 g, display: 140 g, 10 meter cable: 640 g, clamping screw connection: 100 gHousingAluminium, enamelled. IP 65, however only permitted for use in indoor installationsEMC EN 50082-1Ordering dataProduct and accessories selection aidCompressed air counter12Compressed air counter to 80 Nm/s(for features, see graphic page 84)Compressed air counter to 150 Nm/s(for features, see graphic page 84)Part no.0699 6445/10699 6445/2Customer request0 to 80 Nm/sProducts0699 6445/..1 5+1 + 3 + 41 + 42 + 52 + 3 + 42 + 41 + 3 + 61 + 62 + 3 + 62 + 6Accessories34Display with sum indicator (directly on compressed aircounter), order together with no. 1 or 2Distributor box for programming (via RS232), with softwareCD and 10 m of cablePart no.0699 6445/30699 6445/40 to 150 Nm/swithout display5 10 m cable with precision plug connection (in instrument) 0699 6445/5with display6Parameterisation in factory, according to the adjusted innerdiameter (please state physical units and inner diameter)testo 54-2 AC process display, 2 relay outputs (to 250 VAC/300VDC, 3 A), mains supply: 90 to 260 VAC0699 6445/65400 75534 to 20 mA = flow velocity(Nm/s)4 to 20 mA = Norm volumeflow (Nm 3 /h)testo 54-7 AC process display, 2 relay outputs (to 250 VAC/300VDC, 3 A), mains supply 90 to 260 VAC, RS485 output for onlinemonitoring and with totalizer displayCustomer-specific instrument parameterization, incl.parameterization protocol5400 75550699 5889/1Mains unit (desk-top) 110 to 240 VAC/24 VDC (350mA) 0554 1748Pulse output for ext. countersCustomer-perf.parameterisationParameterisation in factoryMains unit (rail mounting) 90 to 264 VAC/ 24 VDC (2.5A) 0554 1749ISO calibration at 5 measurement points, to 250 Nm3/h(testo 6441 / 6442)DKD calibration at 5 measurement points, to 250 Nm3/h(testo 6441 / 6442)ISO calibration at 5 measurement points, to 1600 Nm3/h(testo 6443 / 6444)DKD calibration at 5 measurement points, to 1600Nm3/h (6443 / 6444)0520 01740520 02740520 01840520 0284Example order:Compressed air meter 0 to 150 Nm/s with display; one analog output withparameters velocity or volume flow; pulse output; customer-performedparameterisation.Order no.: 0699 6445/2 + 0699 6445/3 + 0699 6445/4If 0699 6445/4 is ordered, the customer can additionally perform a totaliserreset or enter the correct internal diameterFurther options (on request)Calibration in technical gases (e.g. CO 2 , argon, nitrogen etc.)Version for low flow velocity (max. 20 Nm/s) or higher pressures (

117Direction switch for loop pipelinesThe suitable accessory for directional information in compressed air pipesThis compressed air paddle switch 0699 5913/1 is used for detecting the flow direction, e.g.especially for the measurement of compressed air consumption in ring pipes.The directional information in the form of a switch contact is passed on to a control orbuilding control system, which then, in combination with the volume flow information of thetesro 6440, decides whether the cumulative consumption should be added or subtracted.• For pipe cross-sections: DN ½“, ¾“, 1“, 1 ¼“, 1 ½“ and 2“ (can be shortened by customer)• Temperature range: -40 to 60 °C (-40 to +140 °F)• Maximum pressure: 50 bar (725 psi)• Process thread: ½“ NPT outer thread (brass)• Switch type: hermetically shielded reed contact adjustable in the application range toworking and resting contact position• Electrical data: 1.5 A at 24 VDC, single-pole reed switch• Connection via wiring housing, polycarbonate with cable screw fitting M16 x 1.5 mm2 max.connection cross-section of the wires• Easy installationCompressed air paddle switch fordetecting the compressed air flowdirectionPart no. 0699 5913/1

118Current/voltage data logger with displaytesto 175-S2Logs current and voltage inindustrial processes. testo 175-S2 can be connected, forexample, to the supply line of atransmitter to log and monitorcurrent signals.The testo 175-S2 current/voltagedata logger shows the scaledsignal from the transmitter directlyon the display. Scaling is viaComSoft. The display supplies atesto 175-S2Current/voltage data logger withdisplay, 1 channel, with externalterminal clips, wall holder andcalibration protocolfast overview on site of thecurrent reading, the last valuesaved, Min/Max values and thenumber of values exceeded.• Easy operation, convenientanalysis• Non-volatile memory for securedata even if battery is spent• Data is read out withoutinterrupting the measurementseriesOn site: Fast noncontactdata collection(400 data/s), read outcentrally on PC andanalysis with testo 580Part no. 0563 1761Accessories Ordering dataPart no.Fast testo 575 printer, incl. 1 roll of thermal paper and batteries,infrared thermal line printer with graphics function 0554 1775Spare thermal paper for printer (6 rolls) 0554 0569Spare thermal paper for printer (6 rolls), measurement datadocumentation legible for up to 10 years 0554 0568Label thermal paper (Testo patent) for testo 575 printer (6 rolls),can be applied directly 0554 0561testo 580 data collector set with RS232, readout holdersincluded, for testo 175/177 data loggers 0554 1778testo 581 alarm signal output, floating, for testo 175/177,forwards information efficiently when limits are exceeded to e.g.horns, lamps, PLC etc.ComSoft 3 - Basic Set with RS232 interface for testo 175,Basic software with diagram and table function, incl. desk-topholder, PC connection cable0554 17690554 1759Logging current of a transmitter signalRecommended Set: testo 175-S2, starter set with alarm switchoutputCurrent/voltage data logger with display, 1 channel, with external terminal clips, wallholder and calibration protocoltesto 581 alarm signal output, floating, for testo 175/177Lock for wall holder for testo 175/177 data loggers0563 17610554 17690554 1755testo 580 data collector set with USB, readout holdersincluded, for testo 175/177 data loggers 0554 1764ComSoft 3 - Basic Set with USB interface for testo 1750554 1766ComSoft 3 - Basic Set with USB interface for testo 175, Basicsoftware with diagram and table function, incl. desk-topholders, PC connection cableComSoft 3 - Professional with data management, incl.database, analysis and graphics function, data analysis, trendcurveComSoft 3 - For requirements to CFR 21 Part 11, incl.database, analysis and graphics function, data analysis, trendcurve (w/o interface)RS232 interface for testo 175/177 incl. desk-top holders, PCconnection cable, (please also order for ComSoft 3 -Professional)0554 17660554 08300554 08210554 1757USB interface, for testo 175/177 incl. desk-top holders, PCconn. cable, (Please order with ComSoft 3 - Professional) 0554 1768Ethernet adapter, RS232 - Ethernet incl. software driver, mainsunit, facilitates data communication in network 0554 1711Lock for wall holder for testo 175/177 data loggers 0554 1755Battery, 3.6 V/0.8 Ah 1/2 AA, for testo 175-T3/175-H1/175-H2/175-S1 0515 0175Transport case for up to 5 testo 175 data loggers, testo 575printer, testo 580 data collector and accessories 0516 1750Calibration CertificatesPart no.ISO calibration certificate/electrical, calibration in measurementranges 0 to 20 mA; 4 to 20 mA; 0 to 1 V; 0 to 10 V 0520 1000Technical dataExt. chann. (fixed) 1Meas. range 0 to +1 V0 to +10 VAccuracy±1 digitResolution±0.002 V (0 to +1 V)±0.02 V (+1 to +10 V)0.001 V (0 to +1 V)0.01 V (+1 to +10 V)Memory 16000Oper. temp. -10 to +50 °CStorage temp. -40 to +70 °CBattery type Lithium batteryWeight80 gDimensions 82 x 52 x 30 mm0 to +20 mA+4 to +20 mA±0.05 mA (0 to +20 mA)±0.05 mA (+4 to +20 mA)0.01 mA (0 to +20 mA)0.01 mA (+4 to +20 mA)Battery life: 2.5 years with measuring cycle of 15 min (-10 to +50 °C)Measuring cycle: 1s to 24 hSoftware: Microsoft Windows 95b / 98 / ME / NT4-Sp4 / 2000 / XP

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Testo: At Your ServicePlease send for more information:Monitoring Instruments for Food Production, Transport and StorageMeasurement Engineering for Restaurants, Catering andSupermarketsMeasurement Engineering for Air Conditioning and VentilationMeasurement Engineering for Heating and InstallationMeasurement Solutions for Emissions, Service and ThermalProcessesMeasurement Solutions for Refrigeration TechnologyStationary Solutions for Air Conditioning and ProcessMeasurement Solutions for Production, Quality Control andMaintenanceMeasurement Solutions for Climate Applications in IndustryReference Measurement Technology for IndustryMeasuring Instruments For TemperatureMeasuring Instruments for HumidityMeasuring Instruments For VelocityMeasuring Instruments for Pressure and RefrigerationMulti-Function Measuring InstrumentsMeasuring Instruments for Flue Gas and EmissionsMeasuring Instruments for RPM, Analysis, Current/VoltageMeasuring Instruments For Indoor Air Quality, Light And SoundStationary Measurement Technology Humidity / DifferentialPressure / TemperatureStationary Measurement Technology Compressed AirStationary Measurement Technology Process Displays / OnlineMonitoring / General Information0981 5234/msp/AC/A/07.2008 Subject to change without notice.

ContentsHumidity transmitters testo 6621, 6651, 6681, an overview 8testo 6621The air conditioning humidity transmitterfor indoor applications orin air conditioning ducts 10testo 6651Humidity transmitter forcritical climate applications 14, 18testo 6681Industrial humiditytransmitter 14, 24P2A software and accessories for testo 6621, 6651, 6681 33hygrotest Humidity transmitter 38hygrotest 600Standard humidity transmitterfor air conditioning and process 40hygrotest 650High performance humidity transmitterfor air conditioning and process 42hygrotest 650 HP Special transmitter forhigh humidity applications 44hygrotest 650 G8 H8 Continuous humidity measurement inhydrogen peroxide atmospheres 46Compact transmitter (%RH Pt100) 48testo 6340 Differential pressure transmitter 50testo Saveris TM Measurement data monitoring system 54Stationary temperature measurement 62Overview of standard probes 63Customized temperature probes 65Probe type 02 / 03 / 04 / 06 / 08 66Probe type 09 / 10 / 11 / 12 / 13 68Probe type 14 / 15 / 17 / 18 70Probe type 19 / 20 / 21 / 23 / 24 72Probe type 30 / 31 (stationary probes and inserts) 74Lines 76Plug-in and screw connections 77Temperature transmitter testo 55 78Selection assistance temperature probes and overview 80Signal output 83Special temperature probe request Flap 83testo 54Process displays: displays, switching,online logging, alarm 84Modular flow velocity transmitter 88testo 6721 Pressure dewpoint guard 90testo 6740Profesional monitoring of trace humidity(compressed air etc.) 94testo 6440Compressed air counter(Types DN 15–DN 50) 104testo 6446/47Compressed air counter(Types DN 65–DN 250) 112testo 6445Compressed air counter(Types DN 50–DN 300) 114Current/voltage data logger with display 118

More service with• Commissioning on site• First calibrations• Recalibrations• Advice, seminars, training• Custom-designed solutions• 10 year service guarantee• Highly specialised service expertsworldwideMore assurance with• Highly qualified, individually trainedstaff• 50 years’ experience, more than onemillion measuring instruments in use• DIN EN ISO 9001 certification• Worldwide presence andaccessibilityMore user-friendliness with• Convenient operation menus• Easy on-site adjustment

Request form for custom temperature probesContact:Company/departmentContact personStreetPostcode/town/countryTelephone/faxe-mailtesto sales partnerCustomer numberDateMeasuring requirements:Measuring task (please describe briefly):Measuring conditions: (please indicate medium)AirGasLiquidSurfaceTemperature range fromto°C Accuracy ±°CPressurebarComponents: Sensor elementSee p. 80 for sensor informationThermocouple Pt100 NTCType K class 1Type K class 2Type K class 3Type J class 1Type J class 2Type SType TPt100 class BPt100 class APt100 1/3 class BPt100 1/10 class BNTC Standard (5 KOhm)NTC Standard (10 KOhm)Other: Probe shaftDesign similar to standardprobe typeSee p. 81 for materialinformation Connections/linesMore information on lines(p. 81/82)Probe material1.43051.45712.4816Halar coatingOtherConnection type2-wire format3-wire format4-wire formatOtherProbe shaft dimensions (cf. p. 81 centre)Probe shaft Ø mmProbe lengthmmInstallation length mmPlease enclose a drawing or sketchLinesOrder code(page 82, e.g. D03) or order no. p. 76Line lengthm Plug-in connectionsOrder code (page 82, e.g. G03) or Order no. (page 77) Screw connectionsMore information on plug-inconnections, page 82Order no. (page 77) Signal output Signal outputwith free soldered endsHand-held instrumentLoggertesto 54Transmitter (4 to 20 mA, page 78)OtherRequest details Quantity Approx. price(Net unit price)Previous supplier/type(Please enclose drawing if possible)

Drawing area for custom temperature probe enquiriesPlease use both flap pagesSketch (please dimension in as much detail as possible)SenderTel.:Fax:Preferred delivery period:StandardExpress (4 working days)*Special Express (2 working days)*I would like:AdviceTelephone callA quoteOn-siteExpress service:*In many cases prompt delivery is essential if machine shutdowns and the like are to be avoided.That is why testo offers an express service with:- Delivery within 4 working days from receipt of order: 35 % surcharge on price of probe- Delivery within 2 working days from receipt of order: 50 % surcharge on price of probe* These times are relevant for Germany. For other countries the specific logistics times are added. Please contact us for advice.