MI 3102(H) BT EurotestXE Measurements
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5.5.4 RCD Auto-test
RCD auto-test function is intended to perform a complete RCD test (trip-out time at different
residual currents, trip-out current and contact voltage) in one set of automatic tests, guided by
the instrument.
Additional key:
Toggles between top and bottom part of results field.
RCD Auto-test procedure
Select the RCD function using the function selector keys.
Set sub-function to AUTO using UP / DOWN keys.
Set test parameters (if necessary).
Connect test cable to the instrument.
Connect test leads to the item to be tested (see Figure 5.20).
Press the TEST key to perform the test.
Test with I
N
, 0 (step 1).
Test with I
N
, 180 (step 2).
Test with 5I
N
, 0 (step 3).
Test with 5I
N
, 180 (step 4).
Test with ½I
N
, 0 (step 5).
Test with ½I
N
, 180 (step 6).
Trip-out current test, 0 (step 7).
Trip-out current test, 180 (step 8).
Trip-out current test, + DC (step 9).
Trip-out current test, - DC (step 10).
Store the result by pressing the MEM key (optional).
1) Steps 9 and 10 are performed for EV RCD or MI RCD only.
Result examples: