Instruction manual

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Page 11
Integrated Tests
Information
SUPPLY MAINS TEST
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A-N, A-E
If the N-E (red) light is on and you need to conduct load/leakage tests
DO NOT CONTINUE. If you are carrying out standard Insulation and
Earth Bond tests, it is generally safe to continue.
This light will glow if a voltage difference lies between the neutral and
the earth, or if no earth is connected to the TnT-el supply. (If working
with a generator or inverter, this is most likely to occur and you may
need to consult an electrician before proceeding).
If both the A-E & A-N (green) lights are on but not the N-E (red);
Mains Supply is OK.
Continue to Test.
If both of the N-E (red) & A-E (green) lights are on,
Consult an Electrician, as there is a fault with the Mains Supply.
N
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E
A
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E
A
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N
A
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E
N
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E
A
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N
The Supply Mains TEST checks the Polarity & Connectivit
y of the mains
supply by LED’s (see below). This test is also a part of all of the testing
functions of this unit.