User guide

M4000 Insulation Analyzer User Guide
72A-1230 Rev. F 4-25
July 22, 2005
• Measurement error uncertainty (1% Capacitance relative and 0.15%
Power Factor absolute)
• Retest failure in Subsystem Diagnostics
Field Reference
Status Disabled
Non-critical: This condition must be corrected before Calibration
Verification can be performed.
Corrective Procedure: Replace the Field Calibration Reference.
The consequences of continued testing in the uncorrected state are:
• Calibration Verification cannot be performed
• Calibration Reference (Calref) failure in Subsystem Diagnostics
Factory Status
Disabled
Non-critical: This condition may be caused by any of the following:
1. A calibration dependent assembly has been changed.**
Corrective procedure: Run the Calibration Verification.
2. Guard Mode Switch IDPROM checksum test failed.
Corrective procedure: Replace the Guard Mode Switch Board and run the
Calibration Verification.*
3. Either the Guard status or Main Reference status is disabled.
Corrective procedure: Refer to the foregoing results and run the Calibration
Verification.
* It may be possible to correct an ID PROM checksum failure without
replacing the Guard Mode Switch Board; call Doble.
** Calibration dependent assemblies are:
•- Guard Board
• - Main Reference Assembly
• - Guard Modeswitch Board
• - System BackPlane
The Consequences of continued testing in this state are:
- Calibration Verification Test can be performed if the cause is due to
changed assembly
- Subsystem Diagnostics will fail bptest Test
- Measurement error uncertainty (.25% Capacitance relative and .04%
Power Factor absolute.)