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3.3.3 Incoming Supply Cross Polarity Check
Where the polarity of the incoming mains supply has been
reversed (i.e., Supply Line is connected to Neutral & Earth,
Supply neutral & earth are connected to Line) then as with all
standard socket testers EZ165 will not detect this fault. The
EZ365 can detect this fault using the additional supply cross
polarity check.
To check for supply cross polarity on EZ365, an additional
test is required which is easily activated by touching the blue
POLARITY CHECK touch pad with a finger.
If the incoming supply wiring polarity is correct, the three LED's
will flash GREEN and the buzzer indicating correct socket wiring
will continue.
If the wiring polarity is reversed, the wiring LED's will flash RED
and the buzzer will emit a pulsed tone. The EZ365 will continue
to indicate this fault condition once the finger has been removed
from the touch pad.
In the event of a fault being indicated, investigation should only
be carried out by a suitably qualified electrician.
3.3.4 RCD Trip Check (EZ365 only)
To check the functioning of a 30mA RCD in the circuit under
test, press down on the red RCD TRIP CHECK press button
pad for >2s.
The lower LED's will flash AMBER and the buzzer will emit a
pulsed tone that will speed up to a continuous tone at which
point the 30mA test current will be activated.
10
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