11. Test procedure, commissioning
Page
31
Switch on the PM 20 tester,
which is supplied by an
external voltage supply
source, by means of using
switch 1 of the device.
If the PM 20 tester is switched off:
-
Establish a connection to the test adapter, insert the device under test and close the cover.
-
Directly connect the device under test to the test voltage output (3 and 4).
Please observe the safety and application notes!
Testing is not possible
any more, switch off
tester and disconnect
all lines!
Display
Switch on
the battery-supplied
PM 20 tester by means of
using switch 1 of the
device.
ATTENTION!
Replace battery or
operate battery by means
of external voltage supply
or check its output
voltage/performance. See
Safety and application
notes, page 3.
At first, the version of the
device PM 20 v1 is displayed
for a short period of time
before the ready state
V is displayed
.
If low BATT is displayed,
check the power supply, battery
or power supply device.
Set the required test programme at the adapter (polarity selector
switch, test selector switch and test step selector switch)
depending on the test scheme and evaluation table.
Measurement is started by briefly pressing the Test button.
>>> The test voltage rises with 1000 V/s, value of the test
voltage is displayed.
>>> The integrated response detection completes testing automatically and the result is
displayed:
V
x x xV
> 1100 V
The testing range has
been exceeded
GA 230 V
sparkover d.c. voltage
e.g. 230 V
VR 404
1 mA reference
voltage e.g. 404 V
low BATT
Check power
supply!
Continue with next test step.
Is a test adapter used ?
Switch off PM 20 tester!
Further tests are possible! If no test
adapter is used, the PM 20 tester has
to be switched off for exchanging the
device under test!
YES
NO
Are all individual measurements carried out
according to the test scheme?
Protective device/
protection module is
damaged and has to be
replaced
Check test set-up and/or
selector switch and
repeat measurement if
necessary
or use as result
GOOD/POOR evaluation of the
measurement result determined
for the protective device/protection
module by means of the reference
values stated in the evaluation table.
Are all individual measurements carried out
according to the test scheme?
YES
YES
NO
NO
Protective device/
protection module is ok
and can be used in the
system!