Operation Manual

GMC-I Messtechnik GmbH 29
Function Test with Line Voltage
Prerequisites
• It is only permissible to execute the function test after the
device under test has passed the safety test, i.e. all safety
measurements must first be executed and passed.
• The device under test must be connected to the test socket.
If no device under test has been connected, momentary line
voltage are measured if the measuring
instrument is connected to the mains.
• No short-circuits may exist at the DUT.
Attention!
!
Starting the Function Test
For reasons of safety, the device under test must be
switched off before the function test is started. This
precaution prevents inadvertent start-up of a device under
test which may represent a hazard during operation, e.g. a
circular saw or a disc grinder.
Ending the Function Test
After completion of the function test, devices under test
must be turned off with their own switch – especially
devices with relatively high inductivity.
Sequence
Ð Select the test: ↑↓ keys.
Ð Connect the DUT to the test socket.
Ð Start the test: Press the START⏐STOP key.
Ð All measured values are displayed.
Ð End the test: Press the START⏐STOP key.