Operation Manual

GMC-I Messtechnik GmbH 17
Initial Start-Up – Setup
3.4 Switching the Instrument Off
Switching the Instrument Off Manually
Ð Press the ON / OFF | LIGHT key until 0FF appears at the display.
Shutdown is acknowledged with a brief acoustic signal.
Automatic Shutdown
The instrument is switched off automatically if the measured value
remains unchanged for a long period of time (maximum measured
value fluctuation of approximately 0.8% of the measuring range
per minute or 1° C or 1° F per minute), and if none of the keys or
the rotary switch have been activated before a selected period of
time in minutes has elapsed (see “APoFF” parameter on page 55).
Shutdown is acknowledged with a brief acoustic signal.
Exceptions include:
Transmission and memory mode operation, continuous operation
and whenever a dangerous voltage is applied to the input
(U > 15 V AC or U > 25 V DC).
Disabling Automatic Shutdown
The instrument can be set to continuous operation.
Ð Simultaneously press the
and keys to this end.
The “Continuous On” function is indicated at by means of the
ON display to the right of the battery symbol.
The “Continuous On” setting can only be cancelled by changing the
respective parameter, and not by switching the instrument off
(see “APoFF” on page 57).
ON / OFF
LIGHT
FUNC
ENTER
ON / OFF
LIGHT
Auto-Range
8.8.8.8
Illumination On
00.00
ON / OFF
LIGHT
Illumination Off
00.00
ON / OFF
LIGHT
0ff
ON / OFF
LIGHT
long
(1 s)