Dr. Livingstone, I Presume WELDWISE 2400 - Manual (Page 139)

PROBLEM POSSIBLE CAUSE OR
SYMPTOM
POSSIBLE FIX
Voltage applied to leads is above 9.9 volts. A reading of +/-32767 indicates that the input channel is
saturated and reading its maximum value. It is possible that the
voltage leads were connected too close to the transformer.
Typical readings are between 10V to 15V at the transformer
and depending on the size of the secondary loop will be
approximately 3 to 0.5 volts out at the electrodes. This variation
is due to the voltage drop along the secondary loop. If it is not
possible to connect any closer to the electrodes, inline resistors
can be used to attenuate the incoming voltage.
PEGGED A/D READING:
The Input Monitor
momentarily indicates a
voltage channel A/D
reading of +/- 32767 during
a weld.
Weld monitor has a problem with the
voltage channel. If the A/D reading remains at maximum value when not
welding (zero volts on the secondary), refer to Section 8,
Trouble With Hardware.
FROZEN A/D READING
(ALL): The Input Monitor
indicates a constant (static)
A/D reading for voltage.
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.
WELDS ARE
RECORDED WHEN THE
WELDER IS NOT
WELDING
. The transformer secondary is not properly
grounded Check the transformer for grounding issues. The transformer
secondary should be grounded either directly or through a
grounding inductor. A 1megaOhm resistor in parallel with a
.01microFarad/600V capacitor may also be used.
10-23
0455
-INS-4
00
Re
v.
C