Process monitoring device PUC 28 / PUC 28 K

Process panel for displaying air-conditioning data for cleanrooms


The PUC 28 process monitoring system is especially suitable for pressure monitoring applications in cleanrooms, laboratories, pharmaceutical plants and operating theatres. The system has two electrical inputs for humidity, temperature or external pressure transmitters. Two optional contact points allow the user to connect visual or audible alarms that are triggered any time values rise above or fall below specified limits. These threshold values can be set as parameters both for the internal differential pressure sensor and for the external humidity, temperature or pressure transmitter. The transmitter can be configured easily via an RS 232 interface (optional) with software. A selectable time constant allows the transmitter to be adjusted perfectly to the pressure conditions . Calibration ports are available on the front of the instrument for on-site calibration (optional with the PUC 28 K). There is therefore no need to remove the instrument from its position on-site.

Precision measuring instruments
  • pressure sensor
  • pressure transmitter
  • pressure transducer

Product features

Measurement ranges ± 100 Pa or ± 250 Pa freely scalable within this range
Margin of error ± 0.5 % of max. value (0.3 Pa margin of error for the reference)
Data interface (optional) PROFIBUS DP, RS 232
Output 0 .. 10 V or 0/4 .. 20 mA (adjustable)
Supply voltage 24 VDC, ± 10 % smoothed
Protection class IP 65 (recessed in the wall)

Additional product literature


Overpressure control in cleanrooms by halstrup-walcher

PDF documents

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