KYORITSU 6011A - Manual (Page 27)

― 25 ―
display.
6．Press the phase selector switch to indicate 180
™
in the display and repeat
the test.
7．MAKE SURE TO KEEP CLEAR OF EARTHED METAL DURING THE
OPERATION OF THIS TEST.
8.7 Testing time delayed RCDs
RCDs with a built-in time delay are used to ensure discrimination, that is, that
the correct RCD operates first. Testing is carried out in accordance with item 8.3
above, except that the displayed tripping times are likely to be longer than those
for a normal RCD. Since the maximum test time is longer, there may be danger
if earthed metal is touched during the test.
MAKE SURE TO KEEP CLEAR OF EARTHED METAL DURING THE
OPERATION OF THIS TEST.
Note：If the RCD does not trip the tester will supply the test current for a
maximum of 2000ms on the X1/2 and X1 ranges. The fact that the RCD
has not tripped will be evident because the PN and PE LEDs will still be
on.
8.8 Testing DC sensitive RCDs
Model 6011A has a facility to test RCDs that are sensitive to DC fault currents.
This test can be performed on all Test Current ranges.
Note:Phase angle is positive(0 ﾟ) only.
Proceed as follows:
1．Set the RCD rated tripping current to 30mA.
2．Set the function switch to DC test position.
3．Make sure that the P-E and P-N wiring check lamps are lit. If they are not,
disconnect the tester and check the wiring for a possible fault.
4．If the lamps are lit, press the test button to apply rated tripping current and
the RCD should trip, the tripping time being shown on the display.
MAKE SURE TO KEEP CLEAR OF EARTHED METAL DURING THE OPERATION
OF THIS TEST