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GMC-I Gossen-Metrawatt GmbH
• Make certain that the measurement cables are in flawless condi-
tion, e.g. no damage to insulation, no interruptions in cables or
plugs etc.
• Special care is required when measurements are made in HF
electrical circuits. Dangerous pulsating voltages may be present.
• Measurements under moist ambient conditions are not allowed.
• Be absolutely certain that the
measuring ranges are not overloaded
beyond their allowable capacities
. Limit values can be found in the
table in chapter 17 „Characteristic Values“.
Measuring Categories and their Meaning per IEC 61010-1
The measurement category and the relevant maximum rated volt-
age (e. g. 300 V CAT III) which are shown on the instrument casing
apply to your measuring instrument.
Meanings of Symbols on the Instrument
Warning concerning a point of danger
(Attention: observe documentation)
Earth
Continuous, doubled or reinforced
insulation
VDE testing authority approval mark
CSA approval mark
(North American test authority)
Indicates EC conformity
This device may not be disposed of with the
trash. Further information regarding the
WEEE mark can be accessed on the Internet
at www.gossenmetrawatt.com by entering
the search term
’WEEE’.
DKD calibration mark (red seal):
CAT
Definition
I
Measurements in electrical circuits
not directly connected to the mains system:
e. g. power systems in motor vehicles or aeroplanes, batteries ...
II
Measurements in electrical circuits
directly connected to the low-voltage system:
via plug, e.g. in households, offices, laboratories ...
III
Measurements in facility installations:
stationary consumers, distributor connections, devices attached to a
distributor
IV
Measurements at the source of low-voltage installations:
Meters, main terminal, primary overcurrent protection devices
!
Consecutive number
GMC-I Gossen-Metrawatt GmbH calibration laboratory
Date of calibration (year – month)
German calibration service calibration laboratory
B0730
01-07
DKD-K-
19701
