MI 2087 Instaltest 61557
Measurement instructions
35
Step 4
•
Connect test cable
to tested object (mains outlet or other test terminals),
according to the figure 21. (Plug commander) or figure 22. (Universal test cable).
Step 5
Press the
START
key and release it. Measurement will start to run, partial results will
be currently displayed as follows:
The following presentation is valid for Standard RCD type; see additional information
about the procedure for Selective one on page 33.
1
st
test
Trip-out time measurement, using test current Itest = I
∆
n/2, at positive start polarity of
test current (0°). Tested RCD should not trip, the following display message will
appear for a while:
Fig. 27.
First test is running
Successfully ended first test (RCD does not trip) will automatically be followed by the
second one.
2
nd
test
Trip-out time measurement, using test current Itest = I
∆
n/2, at negative start polarity of
test current (180°). Tested RCD should not trip, the following display message will
appear for a while:
Fig. 28.
Second test is running
Successfully ended second test (RCD does not trip) will automatically be followed by
the third one.
t1
.........Test 1
t2
.........Test 2
