Differential pressure transmitter

In addition to differential pressure data, the P26 differential pressure transmitter from Halstrup-Walcher also records positive and negative overpressures. Measurement ranges between 100 Pa and 100 kPa are freely scalable from 10 to 100%.

Two optional contact points allow the user to connect visual or audible alarms that would be triggered when values exceed certain limits. This pressure transmitter can, if necessary, communicate with a master control unit via an RS232 interface. An adjustable time constant (up to 60 s) allows the instrument to produce a calm output signal, even under fluctuating pressure conditions.

The automatic zero-point calibration prevents zero-point drift. An integrated valve also provides a high level of overpressure protection. Margin of error is approximately 0.5% +0.3 Pa and outputs include 0-10 V, ±5 V, 0-20 mA and 4-20 mA.

The pressure transmitter can be mounted either on a wall or on top-hat rails. An LCD is optional and can display results in pressure units other than Pa or kPa, such as mm H₂0.

The pressure transducer is suitable for monitoring pressure in clean rooms, for use in special mechanical engineering applications or for monitoring a sterile environment such as a laboratory, pharmaceutical plant or an operating room.