Differential pressure sensor halstrup walcher GmbH
± 100 Pa / ± 250 Pa

PUC 24 Process monitoring device for clean rooms
Sensitive measurement technology

Demands for increased quality in nearly every area of industry have led to more and more processes being conducted under clean-room conditions. Ensuring these conditions means monitoring room pressure, temperature and humidity. The new PUC 24 process monitoring device from halstrup-walcher has been specially designed for just such applications.

In essence, the PUC 24 is a differential pressure transducer that utilizes an inductive measurement principle to provide very high resolution of 0.1 Pa at a retest precision of 0.1%. Cyclical self-calibration of the zero point ensures proper measurement stability. The measurement range of ±100 Pa is freely scalable. Also available are inputs for temperature and humidity sensors; these can be set from 0-10 V or from 0/4-20 mA. All measurement values can be clearly read on a graphic LCD. Additional contact outputs are available for separate alarm signals. The device communicates with the master control module via a Profibus. The housing designed for front-flush installation is particularly innovative. Function keys are integrated into a stainless-steel keypad that forms a single smooth surface along the front of the housing. A mounting frame put in place when setting up the clean room makes the PUC 24 easier to install – four screws are all you need. This solution is the product of practical experience and simplifies more than just installation: the simple mounting system makes it possible to remove units quickly and effortlessly for calibration purposes or when switching units to accommodate changes in the process.

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