Technology for Environmental Protection - Measuring. Controlling. Monitoring.
Dual pressure measurement
Pressure transducer with local display DMU 13




The AFRISO DMU 13 pressure transducer with local display provides dual information on the pressure: via a 4–20 mA output signal and an easy-to-read analogue display. Even in the case of a malfunction, one value is still available. It is very unlikely that both measuring instruments fail at the same time.
The AFRISO DMU 13 pressure transducer with local display, consisting of a transducer with a piezo-resistive stainless steel measuring cell plus mechanical Bourdon tube measuring element, provides dual pressure measurement: The integrated pressure transducer allows for accurate measurements (< ± 0.5 FSO) and delivers a proportional 4-20 mA output signal; the analogue local display (class 1,0) is easy to read and independent of electrical power. Due to this redundancy, the current measured values remain available even in the case of malfunctions. The DMU 13 transducer is supplied with DC 12-36 V; it is available for relative pressure measuring ranges from 0/0.6 bar to 0/40 bar. It provides a bottom process connection G½B – AF 22 (EN 837-1/7.3). Other process connections can also be implemented. DMU 13 features a robust stainless steel 304 safety housing with a baffle wall and a laminated safety glass window. The measuring instrument is optionally available with a filling (paraffin oil), with a chemical seal for process separation or with an electrical contact for switching tasks. A junction box allows for easy electrical connection.