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4.2 Function Test and Availability
Press the red switch button at the indicator and keep it pressed until
the
yellow
and
green
light is illuminated
the
green
light switches to
red
and
the
red
light is switched off.
As soon as the red light is off, release the button. The yellow light is illuminated
permanently and indicates availability.
During this test cycle, the electronics are tested as well as the lights and the state of
the battery (see Fig. 4.2).
Note:
A device, which is ready for operation, has always one of the three visual indications
illuminated.
The device is ready for operation for 2 minutes and is switched off automatically, if
no phase comparison is carried out.
Fig. 4.2
yellow
red
switch button
green
yellow light is illumi
nated permanently,
availability
yellow
yellow