GMC-I Gossen-Metrawatt GmbH
7
GB
Repair, Parts Replacement and Balancing
When the instrument is opened, voltage conducting parts may be
exposed. The instrument must be disconnected from the measur-
ing circuit for repair, replacement of parts or balancing. If repair or
balancing of a live, open instrument is required, this may only be
carried out by trained personnel who are familiar with the dangers
involved.
Errors and Extraordinary Strains
If it may be assumed that the instrument can no longer be operated
safely, it must be removed from service and secured against unin-
tentional use.
Safe operation can no longer be relied upon,
• if the instrument demonstrates visible damage,
• if the instrument no longer functions,
• after a long period of storage under unfavorable conditions.
2
Initial Start-Up
Battery
We have already installed a 9 V flat cell battery in accordance with
IEC 6 LR 61 into your instrument. The instrument is ready for oper-
ation.
Refer to chapter 18.1 „Battery“, before placing your instrument into
service for the first time, or after it has been in storage.
Switch the Instrument On
➭
Press the
ON |OFF
key.
Activation is acknowledged with an acoustic signal. As long as
the key remains pressed, all segments of the liquid crystal display
(LCD) are active. The LCD is shown on page 2.
After the key is released, the instrument is ready for operation.
After the instrument has been switched off, it cannot be switched
back on for at least 3 seconds.
Note:
Electrical discharge and high frequency interference can
cause incorrect displays, and may block the measuring sequence.
To reset, switch the instrument off, and then back on. If this proce-
dure is unsuccessful, briefly disconnect the battery from the con-
tact terminals.
Before opening the instrument, disconnect it from the measuring circuit
and refer to chapter 18 „Maintenance“!
Automatic Shut-Off
The instrument is switched off automatically if the measurement
value remains constant for a period of approximately 10 minutes
(measurement value fluctuation
≤ ±
2 digits), and if none of the keys
or the rotary switch are activated during this time.
Disabling Automatic Shut-Off
The instrument can also be switched to “CONTINUOUS ON”.
Simultaneously press the
ON|OFF
key and the multifunction key
FUNC
when switching the instrument on. The “CONTINUOUS ON” func-
tion is indicated at the LCD with the
(8) symbol.
Switching the Instrument Off
Press the
ON |OFF
key.
