Chapter 4. Troubleshooting
24
DewPro MMR101 User’s Manual
Note:
The instrument settings and calibration data are retained in the event of a power failure thanks to storage in
non-volatile memory.
No power
Incorrect instrument
connection.
Check the voltage and
polarity at the + and -
connection terminals. The
voltage should be between
12 and 28 VDC.
Contact GE Sensing if there
is no current flow even
though the voltage and
polarity are correct.
Instrument
response too
slow
The protective filter is
soiled.
Remove the instrument from
the process. Unscrew the
protective filter and clean it
with a solvent (e.g. hexing,
cleaner's naphtha). If
possible, blow clean air (oil-
and dust-free) through the
filter to loosen dirt.
Table 9:
Failure
Possible Cause
Remedy
