KYORITSU KEW 6010B Instruction Manual page 26

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3． Set the phase angle to indicate 0°in the display.
(The initial value is 0°)
4．Set the UL value 50V or 25V.
(The initial value is 50V)
5． Connect the instrument to the RCD to be tested either via a suitable
socket outlet (see Fig 11) or using the Model 7133B (OMA DIEC) test lead
set (see Fig 12).
6． Make sure that the P-E and P-N wiring check LEDs are lit and the wiring
incorrect LED is not lit. If they are not, disconnect the tester and check
the wiring for a possible fault.
7． If the LEDs are correctly lit, press the test button to apply half the rated
tripping current for 2000 ms, when the RCD should not trip. The P-E and
P-N LEDs should remain on indicating and be displayed "OL", the RCD
has not tripped.
8．Change the phase angle to 180°and repeat the test.
9．In the event of the RCD tripping, the trip time will be
displayed, but the RCD maybe faulty.
10． Set the function switch to "X1
time taken for the RCD to trip with the set residual current.
11．Set the phase angle to indicate 0°in the display.
12． Make sure that the P-E and P-N wiring check LEDs are lit. If they are not,
disconnect the tester and check the wiring for a possible fault.
13． If the LEDs are lit, press the test button to apply full rated tripping current
and the RCD should trip, the tripping time being shown on the display. If
the RCD has tripped the P-E and P-N LEDs should be off. Check this is
so.
14．Change the phase angle to 180°and repeat the test.
15．MAKE SURE TO KEEP CLEAR OF EARTHED METAL
DURING THE OPERATION OF THESE TESTS.
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