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Differential pressure transmitter

PU/PI

 
 
 
 

Differential pressure transmitter with linear curve for air-conditioning applications



 

Differential pressure transmitter available in a range of precision classes for measurement of positive or negative differential pressures

Special features

  • High level of accuracy
  • Little zero point drift or hysteresis; largely independent of temperature
  • LCD display (optional)
  • Output signal: 0 .. 10 V (PU),  0/4 .. 20 mA (PI)
  • Factory-adjusted attenuation of the output signal of up to 5 s possible (optional)
  • Can be calibrated

These differential pressure transmitters are available in a wide range of precision classes and therefore suitable for applications in the heating, air conditioning and ventilation industries as well as sophisticated laboratory applications. An optional display allows measurement values to be read directly on-site in Pa, kPa or mmH2O. An optional time constant (up to 5s) allows the instrument to generate an attenuated output signal, even under fluctuating pressure conditions. The instrument is available with an ISO factory calibration or DAkkS-accredited calibration certificate (optional).

Measurement ranges
50 / 100 / 250 / 500 Pa
1 / 2.5 / 5 / 10 / 20 / 50 / 100 kPa
(others available on request)

Margin of error (0.3 Pa margin of error for the reference)
± 0.2 % FS (only for measurement ranges ≥ 250 Pa) or
± 0.5 % FS (min. 0.3 Pa) or
± 1 % FS

Output
PU: 0 .. 10 V (RL ≥ 2 k Ω)
PI: 0/4 .. 20 mA (RL ≤ 500 Ω)

Supply voltage

24 VDC, +20 % / -15 %
24 VAC, +6 % / -15 %
115 VAC, +6 % / -15 %
230 VAC, +6 % / -15 %

Display (optional)
3 1/2 digit
4 1/2 digit

The instrument is available with an ISO factory calibration or DAkkS-accredited calibration certificate (optional).