Datasheet
GMC-I Messtechnik GmbH  5
• Make certain that the measurement cables are in flawless condition, 
e.g. no damage to insulation, no interruptions in cables or plugs 
etc.
For the application of measuring cables see chapter 8.2.
• No measurements may be performed with this instrument in elec-
trical circuits with corona discharge (high voltage).
• Special care is required when measurements are made in HF elec-
trical circuits. Dangerous pulsating voltages may be present.
• Measurements under moist ambient conditions are not permitted.
• Be absolutely certain that the measuring ranges are not over-
loaded beyond their allowable capacities. Limit values can be 
found in the “Measuring Ranges” table in chapter 5 „Technical 
Data“.
Meaning of symbols on the instrument
Warning concerning a point of danger
(Attention: observe documentation!)
Earth
Continuous doubled or reinforced insulation
CAT II / III  Measurement category II 600 V / III 300 V device
Indicates CE conformity
fuse
This device and the inserted (rechargeable) batteries may not be 
disposed of with the trash. For further details on the WEEE mark-
ing, please refer to our website www.gossenmetrawatt.de and 
enter search key ’WEEE’.
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