M4000 Insulation Analyzer User Guide
72A-1230 Rev. F 4-17
July 22, 2005
33 One or both safety
switch cables
disconnected
1. Clean all cable terminations.
2. If the problem persists, replace the I/O
Protection Board (see”Replacing the I/O
Protection Board” on page 4-83)
34 1. Check the AC power source for
abnormally low voltage.
2. If this message was reported when
running a specimen test, run
”Subsystem Diagnostics” on page 4-34.
3. If the problem is still unresolved,
replace the Amplifier Assembly and
rerun its diagnostic. Rerun the original
specimen test at rated voltage
(see”Replacing the Amplifier
Assembly” on page 4-63).
35 Overcurrent on
Power Amp Output
The instrument’s output current limit has
been exceeded.
1. Repeat the test at a lower voltage.
2. Check all test connections.
3. Check for an inadvertently grounded
specimen.
36 Power Amp DC
Supply High
Check the AC power source for abnormally
high voltage.
37 Power Amp DC
Supply Low
1. Check the AC power source for
abnormally low voltage.
2. Try a heavier gauge or shorter AC line
cord to the M4100.
3. Replace the Amplifier Assembly (see
”Replacing the Amplifier Assembly”
on page 4-63).
Table 4.5 Error Messages (Continued)
# Error Message Suggested Action
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