Safe Pressure Measurement for Hygienic Processes

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Digitalised safety with new diaphragm seal system

Measurement & Instrumentation

Safe Pressure Measurement for Hygienic Processes
Safe Pressure Measurement for Hygienic Processes

WIKA developed a new diaphragm seal system that meets the requirements of digitalised sterile processes. The model DMSU21SA consists of process transmitter, diaphragm monitoring and works with HART®7 protocol. It has approvals for all common hygiene standards and is available in a version with explosion protection.

Double diaphragm for safety

The complete measuring arrangement is parameterised via a single cable outlet and HART®7. The communication protocol transmits the measured values as well as the alarm signal from the diaphragm monitoring. The patented safety function is based on a double diaphragm with evacuated intermediate space and a pressure switch. In the event of a rupture of the process-side diaphragm, the switch sends an immediate damage message while the second diaphragm continues to monitor the pressure. The new diaphragm seal system measures pressures between -1 bar and 25 bar with an accuracy of 0.1 % of span. The model DMSU21SA is available with all sterile connections and the application-specific system fill fluids.
 

Posted on August 4, 2021 - (2999 views)
WIKA Alexander Wiegand SE & Co. KG
Alexander-Wiegand-Strasse 30
63911 Klingenberg am Main - Germany
+49-9372-132-0
+49-9372-132406
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