Dr. Livingstone, I Presume WELDWISE 2400 - Manual (Page 136)

PROBLEM POSSIBLE CAUSE OR
SYMPTOM
POSSIBLE FIX
Sensor failure. A reading of +/-32767 indicates that the input channel is
saturated and reading its maximum value. There may be a
problem with the sensor, sensor cable, or weld monitor.
Disconnect the sensor from the sensor cable. If the A/D reading
changes to a value of less than 100, the sensor may be
malfunctioning. Repair or replace the sensor. If the A/D reading
remains at maximum value then the sensor may be OK and the
sensor cable or weld monitor may be malfunctioning. Refer to
Section 6, Possible Sensor Cable Failure.
Sensor cable failure. Disconnect the sensor from the cable, if reading remains the
same. Disconnect cable from the weld monitor. If the A/D
reading changes to a value within +/- 100 from 0, the sensor
cable should be repaired or replaced. If the A/D reading remains
at maximum value, refer to Section 8, Trouble With Hardware.
INACCURATE A/D
READINGS: The Input
Monitor indicates the
displacement sensor A/D
readings are changing but the
readings may not be correct.
Weld monitor failure. Try using a spare weld monitor. Use the Input Monitor screen
to observe the displacement channel readings. Mechanically
disconnect one end of the sensor and slowly extend/retract until
you are reading within the window of the displacement channel.
(See Displacement Sensor Overview) See if the A/D input
readings compare to what the sensor readings should be. If the
values are still incorrect then there may be a problem with the
sensor or the sensor cable. Refer to Section 6, Possible Sensor
Cable Failure.
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