Measurement Solutions for Refrigeration Technology

51Pressure meters for all measurement rangestesto 521Highly accurate with internaldifferential pressure sensor, idealfor inspecting extraction unitsand ventilators and for monitoringpressure drops in filters.The instrument also has twoprobe sockets to connectexternal temperature probes orpressure probes, for example, forsimultaneous monitoring ofcondensation and evaporationpressure.• Temp. compensated differentialpressure sensor 0 to 100 hPaintegrated in instrument• 2 probe sockets for pressureand temperature• Long-term analysis with internaldata memory• Printout on-siteSave data according tosite and analyse onPC/notebookMonitors filters using the external 100 Pa probetesto 521-1testo 521-2Accuracy 0.2% of fsvDifferential pressure meter 0 to 100hPa incl. battery and calibrationprotocolPart no. 0560 5210Accessories Ordering dataAccuracy 0.1% of fsvDifferential pressure meter 0 to 100hPa incl. battery and calibrationprotocolPart no. 0560 5211Part no.Connection hose, silicone, 5m long, max. load 700 hPa (mbar) 0554 0440Connection hose set, 2 x 1 m, coiled, incl. 1/8" screw connection,pressure-tight up to 20 bar, for probe 0638 1647 0554 0441Cable, 1.5 m long, connects probe with plug-in head to meas.instrument, PUR coating material0430 0143Connection cable, 2.5 m long, for pressure probes0638 1741/1841/19410409 0202TopSafe (protection case), incl. carrier strap, bench stand andmagnet. Protects instrument from dust, impact, scratches 0516 0446Testo printer with wireless infrared interface, 1 roll ofthermal paper and 4 AA batteries0554 0547ComSoft 3 - Professional with data management, incl. database, analysisand graphics function, data analysis, trend curve 0554 0830RS232 cable, connects instrument to PC (1.8 m) for datatransfer0409 0178Transport case, for measuring instrument, probes, Prandtl Pitottube, accessories0516 0527Differential pressure probesPrecision pressure probe, 100 Pa, in robust metal housing withimpact protection, incl. magnet for fast attachment, to measuredifferential pressure and flow speeds (in combination with Pitottube)Pressure probe, 10 hPa, in robust metal housing with impactprotection incl. magnet for fast attachment, to measure differentialpressure and flow speeds (in combination with Pitot tube)IllustrationMeas. rangeTechnical dataProbe typeMeas. rangeAccuracy±1 digitResolutionOverloadStatic pressureAccuracy0 to +100 Pa ±(0.3 Pa ±0.5% of mv)Piezoresistive pressure sensor(internal)0 ... 100 hPa±0.2 % of fsv(testo 521-1)±0.1 % of fsv(testo 521-2)0.01 hPa300 hPa2000 hPaConn.Plug-in head. connectioncable 0430 0143 or 04300145 required0 to +10 hPa ±0.03 hPa Plug-in head. connectioncable 0430 0143 or 04300145 requiredPressure sensor for externalpressure probes0 to 2000 hPa (piezoresistive)0 to 40 bar (ceramic)±0.1 % of mv (piezoresistive)±0.2 % of fsv (ceramic)0.1 Pa (0638 1347)0.001 hPa (0638 1447)0.1 hPa (0638 1647)0.01 bar (ceramic)Oper. temp. (compensated) 0 to +50 °C Dimensions 219 x 68 x 50 mmStorage temp. -20 to +70 °C Weight 300 gMemory 25,000Display LCD, 2 linesPCRS232 interfaceBattery type 9 V (6LR61)Part no.0638 13470638 1447Pressure probe, 1000 hPa, measures differential pressure, inrobust metal housing with impact protection, incl. quick-closingcoupling (M8 x 0.5), magnet for fast attachment0 to +1000 hPa ±1 hPa (0 to 200 hPa)±0.5% of mv (200 to1000 hPa)Plug-in head. connectioncable 0430 0143 or 04300145 required0638 1647Temperature probesIllustrationMeas. rangeAccuracyt99Part no.Pipe wrap probe for pipes with diameter ofup to 2", for flow/return temp. meas. inhydronic systems-60 to +130 °C Class 2 5 s0600 4593Highly accurate air probe for air and gastemperature measurements with bare,mechanically protected sensor150 mmØ9 mm-40 to +130 °C To UNI curve 60 s0610 9714Relative pressure probesIllustrationOverloadMeas. rangeAccuracyConn.Part no.Low pressure probe, refrigerant-proofstainless steel, up to 10 bar, screw-inthread 7/16" UNF25 bar -1 to +10 bar ±1% of fsv Plug-in head, connectioncable 0409 0202 required0638 1741High pressure probe, refrigerant-proofstainless steel, up to 30 bar, screw-inthread 7/16" UNF120 bar -1 to +30 bar ±1% of fsv Plug-in head, connectioncable 0409 0202 required0638 1841High pressure probe, refrigerant-proofstainless steel, up to 40 bar, screw-inthread 7/16" UNF120 bar -1 to +40 bar ±1% of fsv Plug-in head, connectioncable 0409 0202 required0638 1941