Plug the extension lead into the appropriate socket on the
instrument front panel.
Circuit Test
1. Press and hold the Circuit Test switch. The
Circuit screen is displayed.
For an unterminated extension lead a reading of
should be displayed. Any other reading indicates a faulty
lead and must be investigated.
2. Release the Test switch.
Polarity Test
Plug Extension Lead Tester ELT1 into the socket end of
the Extension lead (use the adaptor for 110 V leads).
1. Press the Circuit Test switch twice.
2. Check the polarity of the extension lead against
the following display options:
- Polarity Correct
- Connections reversed
- Short Circuit
- Open Circuit
Earth Bond Test
1. Connect the Earth Bond test lead to the 2 5 A
terminal.
2. Firmly connect the crocodile clip to the E LT1
metal stud.
3. Press and hold the 25A Test switch. The Earth
Bond screen is displayed.
4. Earth Bond resistance is displayed directly in
m .
5. Release the Test switch.
6. Disconnect the Earth Bond test lead.
Insulation Test (Class I leads only)
1. Press and hold the Insulation Test switch. The
Insulation screen is displayed.
2. Insulation resistance value is displayed directly
in M .
3. Release the Test switch.
Extension Lead Testing (UK)
– ELT1 Required
14
Do not plug the ELT1 into a live circuit
If fault(s) are indicated, cease testing
and rectify. Re-commence testing from
the start of the test sequence.
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