77 Zero Signal Too Low
Thezerosignaltoolowmessageisdisplayed
during calibration when the sensor zero
signalisbelowthepre-conguredlevelsand
azerocalibrationcannotbeachieved.
For catalytic sensors this would typically
signify there is a large imbalance between
the two detecting elements of the sensor.
The sensor installation should be checked
for loose wires or the sensor replaced.
For mA sensors this would typically signify
that the mA output from the sensor requires
calibrating.
76 Zero Signal Too High
The zero signal too high message is
displayed during calibration when the
sensor zero signal is above the pre-
conguredlevelsandazerocalibrationcan
not be achieved.
This is typical of the sensor detecting its
targetgasandzerogasshouldbeapplied
to the sensor. Alternatively, for catalytic
sensors, this would typically signify there
is a large imbalance between the two
detecting elements of the sensor. The
sensor installation should be checked for
loose wires or the sensor replaced.
For mA sensors this would typically signify
that the mA output from the sensor requires
calibrating.
75 Calibration Signal Too Low
The calibration signal too low message
is displayed during calibration when the
sensor span signal is below the pre-
conguredlevelsandaspancalibrationcan
not be achieved.
Error Error Code Meaning Software Card Fault Latch
Code Version Status Signal
All Active No No
All Active No No
All Active No No
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