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3. OPERATION
3.1. Description of Indicators
The EZ165 & EZ365 use two rows of LED's to indicate wiring
condition, mains voltage level and earth loop impedance.
The top row of three tricolour LED's marked LOOP TEST
indicates the range within which the measured earth loop
impedance falls.
The bottom row of three tricolour LED's indicates the condition
of the wiring, or if the mains supply is <195V or >270V, or if the
neutral to earth voltage is >30V.
Note 1: The loop test will not be performed, and the loop test
indicators will not illuminate if there is a wiring fault or
the mains voltage level is outside limits.
Note 2: The level of the mains supply is only indicated if the
wiring is correct.
3.2 Buzzer
Table 1 shows the buzzer response for the various wiring and
RCD test conditions when using the EZ365.
Table 1.
Continuous tone
Fast pulsed tone
Slow pulsed tone
5
Wiring correct, loop impedance <10Ω
Wiring correct, loop impedance
between 10Ω and 500Ω
Faulty wiring
Supply voltage out of tolerance
RCD did not trip following RCD test
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