Dr. Livingstone, I Presume WELDWISE 2400 - Manual (Page 134)

PROBLEM POSSIBLE CAUSE OR
SYMPTOM
POSSIBLE FIX
Inspect electrical connections for damage, poor connections
and/or corrosion. Replace connectors and/or cable.
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. (Refer to Chapter 9,
FAQ for additional information about the displacement
window). Try flexing different areas of the sensor cable looking
for any area that causes the readings on the Input Monitor to
"jump". Replace the cable if flexing any part of it causes
intermittent readings.
CALIBRATED
DISPLACEMENT
SIGNAL IS INDICATING
A FROZEN (static)
READING
CONT'D
Sensor Cable or weld monitor failure.
CONT’D
If the displacement window cannot be found then the sensor OR
the sensor cable may be failing. To check the sensor cable, refer
to Section 6, Possible Sensor Cable Failure or refer to Trouble
With Hardware. If the cable and weld monitor appear to be
OK, replace the sensor.
FROZEN A/D READING
(ALL): The Input Monitor
indicates a constant (static)
A/D reading for the
displacement sensor. This
value never changes; the
other sensor channels do not
change or update either. Weld Monitor problem If other channel readings are not changing, the data may not be
updating. Shutdown and Restart the weld monitor. If problem
persists contact Livingston Service.
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