DPIA Differential Pressure Sensor Data Sheet - Trend

DPIA2-WIRE DIFFERENTIAL PRESSURE TRANSMITTERSCURRENT OUTPUTSPECIFICATION DATA & MOUNTING INSTRUCTIONSFEATURES• Monitoring gaseous, non-aggressive media• Piezo-resistive pressure transducer• Up to 40 kPa overload capacity• Rugged design; protection class IP54• Easy installation and wiring connection• Measurement range adjustable by jumper• Response time adjustable by jumper• Pushbutton zero adjustmentGENERALThe differential pressure transmitters of the DPIA series areused for measuring differential pressure, positive pressure,and vacuum. The transmitters are suitable for:• air-conditioning,• building automation,• environmental protection,• valve and damper control,• filter and blower monitoring,• control of air flows.Modelsorder no.pressure range1 2overloadcapacityburstingpressureDPIA-100-250 0...100 Pa 1) 0...250 Pa 20 kPa 40 kPaDPIA-250-500 0...250 Pa 1) 0...500 Pa 20 kPa 40 kPaDPIA-500-1000 0...500 Pa 1) 0...1 kPa 20 kPa 40 kPaDPIA-1000-2500 0...1 kPa 2) 0...2.5 kPa 40 kPa 70 kPa1) ≤ ± 5% of FS; 2) ≤ ± 2.5% of FSSupplied complete with connection kit comprising 2 m tubing,2 connection tubes, and 4 screwsSPECIFICATIONSupply voltageOutput signalMaximum loadPressure medium15 to 30 Vdc4...20 mA, two-wire≤ 500 ΩAir and non-aggressivegasesWorking temperature 0...50 °CLinearity and hysteresis error ≤ ± 1.0% of FSTemperature error at 0...50°C ≤ ± 1.0% of FS1)≤ ± 5.0% of FS2)≤ ± 2.5% of FSStorage temperature -10...+70 °CHumidity0...95% rh, non-condensingLong-term stability, typicalDPIA-100-250 to DPIA-500-1000≤ ± 2.5% of FS per yearDPIA-1000-2500 ≤ ± 1.5% of FS per yearRepetition accuracy≤ ± 0.2% of FSPosition dependence ≤ ± 0.02% of FS per gResponse time1s (switchable to 100 ms)Process connection6 mm hose pipeElectrical connectionScrew terminal block for wireup to 1.5 mm²Housing materialABS and POMCable entryM20x1.5 (polyamide)Protection classIP54 as per EN60529EMCEN60770, EN61326Weightapprox. 130 gDPIA Data Sheet TA200879 Issue 1/E 04/09/07 1EN0B-0467GE51 R0707

DPIAData SheetFUNCTIONThe DPIA Two-Wire Differential Pressure Transmitters areequipped with an integrated piezo-resistive pressuretransducer designed so that the pressure to be measured isapplied to a thin membrane made of monosilicon, thusdeflecting it. The semiconductor resistors on the membranedetect this mechanical deflection and generate an electricaloutput signal. The arrangement of the resistorssimultaneously compensates for the temperature response.The signal of the pressure transducer is converted into theoutput signal by high-gain operation amplifiers.The electrical output signal changes within the specified errorlimits in proportion to the applied pressure.NOTE: All DPIA Two-Wire Differential PressureTransmitters are factory pre-set to a response timeof 1s (slow).NOTE: All DPIA Two-Wire Differential PressureTransmitters are factory pre-set to the lowerpressure range 1.WIRINGresistive load (ohms)permissible Vdc loadpermissible Vac load800600400200016 18 20 22 24 26 28 30supply voltage (2-wire versions: Vdc, only)Fig. 2. Permissible load vs. supply voltageMOUNTING32storage positionsfor pin plugsDefault: links fittedRange lowResponse slowhighfastJumper yesJumper noDifferential Pressure TransmitterDPIA-100-250Pressure range 0 ... 100 Pa / 0 ... 250 PaOverload capacity25 kPaLinearity and hyst. Error