Conventional test set-up
For conventional tests (measurements), the surge protective devices to be tested are adapted via
terminals, connecting leads or connectors. The safety test clips included in delivery have to be used
for surge protective devices with connecting leads or connectors (see figure, test set-up 3)! It is
recommended to use standard clamp test probes for testing surge protective devices with screw
terminals (see figure, test set-up 3). Depending on the connection technique, the protective devices
to be tested have to be adapted to the relevant connections and have to be connected to the PM
20 tester via the two test cables (see figure, test set-up 3).
1. Connection of the test cables
The PM 20 SPD tester, which has to be switched off, is connected via the test cables included
in delivery:
-
Test cable (red)
to the output socket (
red
) of the PM 20
-
Test cable (black)
to the output socket (
black
) of the PM 20
(see figure, Test set-up 3)
Attention:
When establishing the test location, ensure that it is set up on an insulating surface and that
no external devices are located in the area of the two test cables!
1.1 Connection of the power supply unit
The power supply unit is connected to the PM 20 via the phone jack adapter included in delivery
(see figure, Test set-up 3). Alternatively, the PM 20 tester can be operated via a 9 V battery.
Test set-up 3
connection
power supply unit;
230 V AC/9 V DC
phone jack adapter
test cable (black)
test cable
(red)
standard clamp
test probe
safety test
clamp
standard clamp
test probe
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DEHNguard...
protection
module
8. Test set-up 3, conventional test
safety test
clamp
safety test
clamp
safety test
clamp
X
X
