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PAT400 Series
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3.12 WARNINGS
3.12.1 Power-On tests
Running a leakage or load test will operate the asset under test. Some assets, such as vacuum cleaners, disc cutters etc can draw high
initial load currents (Inrush current). The PAT400 will under these circumstances report the asset has a short circuit.
If this warning is displayed, it is recommended the following actions are taken:
1)
Where possible check the asset does not have a short circuit (the fuse would normally be blown in such circumstances, prior to
it being replaced).
2)
Proceed ONLY if you believe the asset is not a true short circuit, but has a high inrush current.
3.12.2 Reversed supply
UK instruments:
The PAT400 will detect a reversed polarity (Phase – Neutral) supply and abort the initialisation.
The display will show the warning:
ERROR 82:
Mains polarity reversed
European instruments:
The instrument will pass initialisation and display the Home screen. The supply polarity will be shown as “Reversed”.
3.12.3 Supply earth fault
The PAT400 will test for a good supply earth during initialisation. A faulty or missing earth will return the error:
Error 73 – Mains supply Earth Fault
3.12.4 Parallel earth paths
If the PAT400 detects more than one earth path, the warning:
Unable to verify earth connection,
Parallel paths may exist.
Refer to user guide.
The PAT400 has detected more than one earth path during the Earth continuity, Earth bond, Insulation or Earth leakage tests. Refer to
Appendix A.8 for further details.
3.12.5 Database full
Exceeding the storage capacity of the database will create the following warning:
Error - Database Full. Unable to save data!
Press OK to continue
The test result will NOT be saved.
To free up memory for further test results:
1.
Backup the existing database to a USB storage device.
2.
Delete records from the PAT400.
See Section 4 for further information on PAT400 memory.
