8
GMC-I Gossen-Metrawatt GmbH
Meaning of symbols on the instrument
Warning concerning a point of danger
(Attention: observe documentation)
Earth
Continuous, doubled or reinforced
insulation
CAT III / IV
Instrument for measurement category III or IV
VDE testing authority approval mark
CSA approval mark
(North American test authority)
Indicates EU conformity
DKD calibration mark (red seal):
Repair, Parts Replacement and Balancing
When the instrument is opened, voltage conducting parts
may be exposed. The instrument must be disconnected
from the measuring circuit for repair, replacement of parts
or balancing. If repair or balancing of a live, open instru-
ment 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 unintentional 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 condi-
tions.
2
Initial Start-Up
Battery
Please refer to chapter 26.1 regarding correct battery
installation.
Attention!
!
Before opening the instrument, disconnect it from
the measuring circuit!
!
Serial number
GOSSEN METRAWATT Calibration Laboratory
Date of calibration
German Calibration Service – Calibration Laboratory
B0730
99-02
DKD-K-
19701