MI 3309 DeltaGT
Single test
45
Trip-out time measurement procedure
Measuring PRCD
Select the RCD test function.
Select
test
mode.
Set test parameters.
Connect tested PRCD / device to an external voltage socket. Connect the IEC cord
to the instrument’s MAINS terminal and PRCD (see
Figure 5.36b
).
Depending on the type of PRCD, it may be necessary to manually switch it on.
Press the TEST key to perform measurement.
If both starting polarities are selected:
Reactivate tested PRCD.
Store the result by pressing MEM key (optional).
or
Select the PRCD test function.
Select
test
mode.
Set test parameters.
Connect tested PRCD between test socket and IEC connector of the DeltaGT (see
Figure 5.36c
), and connect instrument’s MAINS terminal to an external voltage
socket.
Depending on the type of PRCD, it may be necessary to manually switch it on.
Press the TEST key to perform measurement.
If both starting polarities are selected:
Reactivate tested PRCD.
Store the result by pressing MEM key (optional).
Measuring RCD
Select the RCD test function.
Select
test
mode.
Set test parameters.
Connect the DeltaGT MAINS terminal to mains socket protected by tested RCD
(see Figure 5.36a).
Depending on the type of PRCD, it may be necessary to manually switch it on.
Press the TEST key to perform measurement.
If both starting polarities are selected:
Reactivate tested RCD.
Store the result by pressing MEM key (optional).
Figure 5.37: Examples of (P)RCD single test results
Displayed results:
Main result(s) ......... trip out time(s) at selected starting polarity
U ............................ voltage U
L-PE
5.2.10.2 Automatic (P)RCD test
