The Loop Current Is Out Of Range; There Is No Current - GE DewPro MMY31 Installation And Operation Manual

The Loop Current is Out
of Range
Solution

There Is No Current

Solution
Troubleshooting
The loop current is outside the range of 4-20 mA, as shown on the
display or the current meter. For an example of error current at 22mA,
see below.
The process dewpoint is out of range. If the dewpoint is above +10°C
(+50°F), the current will go to 22 mA. Apply dry air for 20 minutes.
If the dewpoint doesn't decrease, consult the factory.
If the dewpoint is below –90°C (–130°F), the current will go below
4 mA and then go to the error current, e.g. 22 mA. Expose the
DewPro to ambient air for several minutes. If the error remains, the
cause may be a defective sensor assembly or an electronics
malfunction. Consult the factory.
Check the voltage and polarity across +/- terminals with a DC
voltmeter. If the voltage is within 12-28 VDC, consult the factory.
September 2005
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