MP 26 Transmitter Installation and Calibration Manual
Minebea Intec
6.3. Detection and Display of Sensor and Wiring errors
1) Break in the supply measuring or sense lines: "FAIL" is displayed on the process value
display and “FbF.1" in the error list.
(A substitute value (In.F ) can be entered in the event of a sensor error.)
2) Wrong polarity of supply, sense and input signal lines: "FAIL" appears on the process
value display and "POL.1" in the error list. Detection of wrong polarity of sense takes
place during instrument start-up.
Subsequent correction of the sense wiring is detected only after instrument re-start (i.e.
the instrument must be switched off and on again.)
3) Short circuit of supply and sense lines ==> behavior as with break in supply lines: "FAIL"
appears on the process value display and "FbF.1" in the error list.
4) Short circuit of measuring lines: measuring signal = 0
5) Overshoot of measurement input: “FAIL” appears on the process value display and
"FbF.1" in the error list.
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