WIKA MH-4, Operating Instructions Manual, Page: 5 / 92

5 WIKA operating instructions pressure sensor, model MH-4
14170805.01 06/2020 EN/DE/FR/ES
EN
2. Design and function
2. Design and functionn
2.1 Overview
 Electrical connection (depending on version)
 Case, spanner flats
 Case
 Process connection, spanner flats (option)
 Process connection, thread





2.2 Signal clamping
The output signal of a pressure sensor can be above the nominal maximum signal
value, if no signal clamping has been set. Likewise, the output signal can also be below
the nominal minimum signal value. This undefined condition can cause an error in
the machine (software) of the customer. Signal clamping limits the output signal to a
minimum or maximum value which is to be defined by the customer.
2.3 Diagnostic function
By means of the output signal, fault conditions can be detected and evaluated via
software. Thus it is possible to differentiate between permanent and temporary faults.
2.4 Scope of delivery
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Pressure sensor
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Operating instructions
Cross-check scope of delivery with delivery note.