M4000 Insulation Analyzer User Guide
72A-1230 Rev. F 4-3
July 22, 2005
Isolating Trouble
The first step in pinpointing a problem is to determine whether the problem
lies with the M4200c (or third-party controller) or the M4100. Consult
Table 4.3 to determine which is the malfunctioning unit and what to do next.
Table 4.2 M4000 Troubleshooting Resources
Resource Description M4100
Reference
Symptoms The most basic troubleshooting tool is the
observation of a symptom of trouble by the M4000
operator. It is often the starting point for more
detailed diagnostics.
page 4-12
Error Messages The M4000 Insulation Analyzer automatically
recognizes certain exception conditions and
displays corresponding error messages to the
operator. A Help button is also available in each
displayed message box to provide guidance on
suggested causes and cures.
page 4-16
Diagnostics The M4000 supports automated self-diagnostic tests
that are useful in validating system operation and
troubleshooting problems that may occur.
Diagnostics should be run on a regular basis to
ensure that the M4000 Insulation Analyzer is
functioning properly. The Diagnostics should also
be used to investigate potential causes of error
messages. Test results should be sent to Doble if
Doble assistance is being requested.
page 4-21
Other Tests Certain relatively simple external and internal tests
can be performed to characterize a problem and
point to a specific solution. In some cases these tests
can avoid the need for component swapping as a
diagnostic tool.
page 4-42
and
page 4-50
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