122770 06 18-09-2007 31
Error: The RTD input is not measuring
Error message:
-
Likely cause: Solution:
The current source is
not working
Set up the input measuring RTD 3-wire
measurement.
Check that the current between the lowest
red terminal and the lowest black terminal is
between 0.40 mA and 0.44 mA.
With a short circuit between these
terminals, check that the current between
the lowest red terminal and the upper black
is within 2.5% from the first current.
If these are not correct change the Main
PCB and re-calibrate the unit.
A/D-converter is
defective.
With a sensor connected check that the
A/D-converter readings in the Service Menu
are normal.
If not change the Main PCB and re-calibrate
the unit.
Error: The reference input is not measuring.
Error message:
-
Likely cause: Solution:
The current source is
not working or the A/D-
converter is defective.
With a sensor connected check that the
A/D-converter readings in the Service Menu
are normal.
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