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4.5.2 Check for interference voltage
With the connection of load, inductive and capacitive
interference voltages can be suppressed:
- Test the line / neutral conductor that applies as
disconnected. The tester indicates an interference
voltage (e.g. 120 V)
- Press both rear push-buttons
- The tested voltage is supplied. In case of a
coupled interference voltage, the tested voltage
will break down recognizable. In case of an
opperating voltage the initial test value remains
(e.g. 120 V).
Attention!
Interference voltage must be grounded before
further work.
4.5.3 Capacitor discharge
With the connection of load, capacitors can be
discharged:
- Test the capacitor voltage
- Press both rear push-buttons
- The capacitor will be discharged
4.5.4 Testing electricity meters
The MultiSafe DSP 5 is suitable to perform start-up
test of digital electricity meters:
- Test the voltage between phase and neutral.
The tester shows 230 V.
- Press both rear push-buttons and hold them
pressed.
- The electricity meter display indicates app. 6 - 15 W
load.
This process has to be repeated for every phase.
Furthermore the rotating field has to be checked.
(see 4.6)
