BA364D Counter, timer,tachometer, clock - BEKA Associates

Hazardous areaSafe areaBA364DCounter, timer,tachometer, clockInputsProximity detector,magnetic pick-offvoltage pulse,open collector orswitch contactVSNABZener barriers orgalvanic isolatorsPower24VResetOptionalbacklight24VOptionalalarmoutputsOptionalpulseoutputOptional4/20mAoutputIntrinsically safe for usein gas and dusthazardous areasu Separate 8 digit and6 digit displays.u Two inputsShown with optional backlightThe BA364D is an intrinsically safe multifunctioninstrument which may be programmedto perform a host of counting and timingfunctions. Easy to use menus allow theinstrument to be configured as a counter,timer, tachometer or as a clock. Both of theinputs will operate from 2-wire proximitydetectors, switch contacts, magnetic pick-offs,open collectors or voltage pulses. Optionalalarm/control outputs further extend the manyapplications.Counting may be from one or both inputs.The pulses at each input can be added to, orsubtracted from each other, and the result maybe scaled to provide a display in engineeringunits. Alternatively, pulses on one input canincrement or decrement the total countdepending upon the state of the other input.From two inputs electrically 90° out of phase(quadrature), the BA364D can display thedirection of movement and position of a shaftor a cable. The total display may be reset tozero via the instrument controls or by a remotecontact closure.As a timer the BA364D may be started andstopped by one or both inputs or from theinstrument push-buttons. Elapsed or remainingtime may be displayed in hours, minutes andseconds, or in just hours and minutes. Whenfitted with optional control outputs theinstrument can control any process which isrequired to operate for a fixed time.Rotational speed may be measured using thetachometer function which will displayrevolutions per second, minute or per hour.The instrument contains a run-time counterwhich can show the total operating time of themonitored machinery on the second display.When fitted with optional alarms, over andunder speed warnings can be generated.Configuration as a digital clock enablestime to be displayed in twelve or twenty fourhour format within a hazardous area. Theinstrument may operate as a stand-aloneclock, or may be synchronised via the resetterminals with an external reference. Twooptional control outputs enable hazardous orsafe area loads to be turned on and off atpre-set times twice in each twelve or twentyfour hour period.Control and programming of the BA364D isperformed via four push-buttons which areprotected from damage and tampering behinda sealed cover. For applications requiringfrequent adjustment, the instrument can besupplied with a robust external membranekeypad. All the programme functions arecontained in easy to understand menus whichmay be protected by a user definable securitycode. To simplify calibration the scaling factorsemploy floating decimal points.Intrinsic safety certification allowsinstallation in most hazardous areas, separateversions are available with ATEX gas andATEX gas plus dust certification allowinginstallation throughout Europe. For applicationsin the USA, a new version having FM intrinsicsafety and nonincendive approvals hasrecently been introduced.The enclosure, which is moulded in glassreinforced polyester (GRP), has stainless steelfittings, silicone gaskets and an armouredglass window. Its robust construction providesIP66 protection. A separate terminalcompartment allows the BA364D to be installedand terminated without exposing the displayelectronics. To further simplify field wiring andsubsequent inspection, the terminal cableentries and clamping screws are forwardfacing.Backlighting is available as an option toimprove readability when the BA364D isinstalled in a poorly illuminated area. Highefficiency amber LEDs provide an even glow toenhance display contrast.Optional alarm/control outputs provide twogalvanically isolated solid state outputs each ofwhich is a separate intrinsically safe circuit andcomplies with the requirements for simpleapparatus. Almost any certified intrinsicallysafe load such as a solenoid valve or soundermay be controlled by these outputs.Free of charge programming and calibrationto customers requirements is performed priorto despatch, although the BA364D can easilybe reconfigured on-site without the need forany test equipment or programming aids.u Intrinsically safeATEX gasor ATEX gas & dustor FM & ATEX gasu IP66 enclosurefor surface, pipeor stem mounting.u Optional:Display backlightAlarmsPulse and 4/20mAoutputsu 3 year guaranteewww.beka.co.uk/ba364dBEKA associates Ltd. Old Charlton Rd.Hitchin, Hertfordshire, SG5 2DA, U.K.Tel. (01462) 438301 Fax (01462) 453971e-mail sales@beka.co.uk www.beka.co.uk

SPECIFICATION DIMENSIONS (mm)Power supplyVoltageCurrentInputs A and BSwitch contactClosedOpenProximity detectorMagnetic pick-offVoltage pulseLowHighOpen collectorClosedOpenFrequencyswitch contactother inputsDisplayTypePrimaryDecimal pointSecondaryDecimal pointRemote resetThe BA364D must be powered via a Zenerbarrier or galvanic isolator.10V min betweenterminals 1 and 212mA max., plus proximity detector currentswhen used.Less than 100ΩGreater than 1kΩ2-wire NAMUR40mV peak to peak typicalLess than 1VGreater than 3V; 30V maxLess than 2kΩGreater than 10kΩ100Hz max5kHz max. Reduced to 2kHz for quadrature inputLiquid crystal8 digits 14mm high1 of 7 positions or absent; colons for h:m:s6 digits 9.5mm high1 of 5 positions or absent; colons for h:m:sContact closure with resistance less than 1kΩProgrammable functionsCounterA; A+B or A-BA direction controlled by BA and B Quadrature (90° out of phase)Total scale factor Adjustable between 0.001 & 99999999Grand total10 16 max countRate scale factor Adjustable between 0.001 & 99999999TimerMaximum durationDirectionElapsed time displayed as hh:mm:ss or hh:mm99 hours:59 minutes: 59 secondsUp or downTachometerRevolutions displayed per sec, per minor per hour.Rate scale factor Adjustable between 0.001 & 99999999Run-time display Resolution 1 /10 hourClockSet time displayed in 24 or 12 hour format.External synchronisation Once per 12 or 24 hoursIntrinsic safetyEurope ATEXCodeGroup II Category 1G, Ex ia IIC T5(Tamb = -40 to 60°C)or Group II Category 1GD, T80°C IP66Ex ia IIC T5 (Tamb = -20 to 60°C)Certificate number ITS01ATEX2003Location Gas Zone 0, 1 or 2: Dust Zone 20, 21 or 22Dust option,see Howto order21291TAG NUMBER141PSCALESeparateterminalcompartmentTERMINAL CONNECTIONSCase1 2+PowerScale legendTag legend3 4 5 6E7 811772Two M6 clearance holesfor surface mountingThree cable entriesATEX certification M20 x 1.5 tapped.Supplied with two IP66 stopping plugsand one temporary hole plug.FM certification 22.25 Ø plain holesB1 B2A1 A2 A3 A4+ + + + + +Input A Input B Reset Terminals Alarm 1 Alarm 2for optionalbacklightVoltage,magneticpick-off,switch,proximitydetector oropen collectorTerminalsfor optionalalarmsP1 P2C1 C2+ +Terminals Terminalsfor optional for optionalpulse output 4/20mAoutputUnits of measurement marked onto displayescutcheon. *Tag number or applicational information markedonto display escutcheon. *USA FMOption, see How to orderStandard3610 EntityCodeCL I, II, III: Div 1: GP A, B, C, D, E, F & GT4 @ 60°CFile 3022309Stainless legend platePipe mounting kitStainless steel plate secured to front ofinstrument, etched with tagging orapplicational information. *2 kits are available BA392D and BA393.*Standard3611 NonincendiveCode CL I: Div 2: GP A, B, C & D, T4 @ 60°CCL II, III: Div 2: GP E F & G, T4 @ 60°CFile 3022309EnvironmentalOperating temperature -20 to 60°C (ATEX gas certification -40 to 60°C)Storage temperature -40 to 85°CEnclosureIP66 see ITS test report C87IV0383AEMCIn accordance with EU Directive 2004/108/EC.ImmunityLess than 1% error at 10V/mEmissionsUndetectable above background noise.Class B equipmentMechanicalTerminalsWeightAccessoriesAlarms/control outputsOutputsOnOffDisplay backlightingScrew clamp for 0.5 to 2.5mm ² cables.1.6kgTwo independent outputs.Isolated solid state switchLess than 5Ω +0.6VGreater than 180kΩCertified as simple apparatusLED backlight powered from 28V 300ΩZener barrier or galvanic isolator.* See accessory datasheet for detailsHOW TO ORDERplease specifyModel numberBA364DCertificationATEX gasNote: Cable entries differor ATEX gas & dustfor FM & ATEX modelsor FM & ATEX gasConfigurationCounter; timer; tachometer or clock.Inputs Proximity detector; switch contact; magneticpick-off, open collector or voltage pulse.Calibration information Settings required #AccessoriesAlarms/control outputsDisplay backlightRe-transmitted pulse output4/20mA outputEscutcheon markingScaleTagStainless legend platePipe mounting kitplease specifyAlarmsBacklightPulse output4/20mA outputScale legend requiredTag legend requiredLegend requiredBA392D or BA393Re-transmitted pulse4/20mA outputVoltage dropPulse sink certified as simple apparatus.Galvanically isolated current sink5V max.# If calibration information is not supplied, instrument will be conditioned as acounter; input A + input B; for open collector inputs; rate & total scale factors of 1.11