Bestech Australia offer P26 differential pressure transmitter, from Halstrup-Walcher. In addition to differential pressure data, the P26 differential pressure transmitter/ transducer records positive and negative overpressures. Measurement ranges between 100Pa and 100kPa are scalable from 10 to 100%.
Two optional contact points allow the user to connect visual or audible alarms that are triggered when values exceed certain limits. The P26 differential pressure transmitter can, if necessary, communicate with a master control unit through an RS232 interface. An adjustable time constant (up to 60s) allows the instrument to produce a calm output signal, 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% + 0.3Pa and outputs include 0-10V, ±5V, 0-20mA and 4-20mA.
The P26 differential pressure transmitter can be mounted either on a wall or on top-hat rails. An LCD display is optional and can display results in pressure units other than Pa or kPa, such as mmH2O. The menu comes in four different languages (English, German, Italian and French).The P26 differential pressure transmitter/transducer is useful 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.