PS 27

Compact differential pressure transmitter for positive or negative differential pressures in basic applications

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Technical data
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Compact differential pressure transmitter for positive or negative differential pressures in basic applications

Special features

  • ± measurement ranges and asymmetric measurement ranges
  • Either with 1 fixed measurement range or toggling between 4 different measurement ranges (can be selected via DIP switches, optional)
  • Suitable for top-hat rail mountingand wall surface installation
  • Selectable output signal 0/2 .. 10 V, 0/4 .. 20 mA or 0 .. 5 V
  • Can be calibrated
  • Zero-point calibration via an external signal reduces maintenance costs
  • The adjustable limit switch permits the connection of, e.g. ventilators or signalling devices, and saves additional wiring (optional)

This compact differential pressure transmitter is particularly suited to filter and pressure monitoring applications in the heating, air-conditioning and ventilation industries. 

Options

  • The instrument is available with an ISO factory calibration or DAkkS-accredited calibration certificate.
  • An optional display allows measurement values to be read directly on-site in Pa or kPa. 
  • An optional time constant (up to 4s) allows the instrument to generate an attenuated output signal, even under fluctuating pressure conditions.
  • To reduce wiring costs, the instrument is also available in a version with two-wire technology (optional).
  • Pressure ports also as push-in fittings on request
Measurement ranges
50 / 100 / 200 / 500 Pa1 / 2.5 / 5 / 10 / 20 / 50 / 100 kPaOthers available upon requestOptional: toggles between: 100 / 250 / 500 / 1000 Patoggles between: 50 / 500 / 1000 / 2000 Patoggles between: 1 / 2.5 / 5 / 10 kPatoggles between: 10 / 25 / 50 / 100 kPaalso ± measurement ranges
Margin of error (0,3 Pa for the reference)
± 2 % of the set value for measurement ranges ≥ 100 Pa± 3 % of the set value for measurement range ≤ 50 Pa
Output (signal)
0 .. 10 V (RL ≥ 50 kΩ)2 .. 10 V (RL ≥ 50 kΩ)0 .. 5 V (RL ≥ 50 kΩ)0/4 .. 20 mA (RL 500 Ω)The output signal can be configured using DIP switches
Display

4-digit (optional)

Protection class

IP 65

Tubing connectors

Standard for 4 and 6 mm tubing, push-in fittings on request

Contact points
1 relay (changeover contacts) max. 230 V AC, 6 A
Supply voltage
15 .. 32 VDC two-wire24 VAC/DC, ± 10 % without galvanic separation
Technical drawing

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