SCHMIDT Thermal Flow Sensor - SS 20.400
This report is an evaluation of a SCHMIDT thermal mass flow sensor SS 20.400 with direction detection. The overall objective of this test report is to confirm some specific data stated and published by the manufacturer is correct and valid. This, in combination with statistical testing and functional tests should be seen as a guide for the selection of sensors for a specific application. The investigated thermal mass flow sensor is able to show (besides the velocity via the analogue output) the flow direction via two switching outputs. In addition, the threshold values of these switching outputs can be configured by using a programming kit provided by SCHMIDT. During the test programme, the analogue output (4 – 20 mA) was connected to a Moore Industries Safety Trip Alarm (STA) and the alarm outputs were monitored.
3.6 - Mass flow meters
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