Megger PAT32 Series, User Manual

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Insulation Test
Checks the integrity of the insulation. For class
I
appliances, the test voltage is applied to the main supply
plug between Phase and Neutral (shorted together) and
the Earth pin, which is held at earth potential.
For Class
II appliances, the Earth Bond lead is used to
make the return connection from the appliance to the
instrument earth bond terminal.
The PAT 32 develops 500 V d.c. into 0.5 M
Ω
and
complies with the 1mA load current requirement.
Caution:- If an Insulation test fails, there will be a
leakage path to earth somewhere on the appliance.
Any metal parts of the appliance could become ‘Live’
and give the user an electric shock. Do not touch
the appliance when applying the test.
Extension Lead Test
Using the Megger
ELT1 or ELT2 optional accessory,
the PAT 32 checks Continuity, Earth Bond and Insulation
of both 230 V and 110 V extension leads. (110 V adaptor
required).
ELT1
(UK version) also checks the Polarity of
the extension lead connections.
Error displays
Internal faults within the instrument are indicated by error
messages consisting of the letter ‘ ‘ followed by a 2 digit
number. Continuous testing on the Earth bond ranges
may cause the display of , and the analogue pointer
to move off the left hand end of the scale. Cease testing
and allow the instrument to cool for about 15 minutes.
If any error message displays, and the instrument will not
re-set itself, return the instrument for service. See Repair
and Warranty.
Test Mode Summary
8