Operation Manual
2 GMC-I Messtechnik GmbH
Contents Page
1 Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2 Safety features and safety precautions . . . . . . . . . . . . . . . . . 3
2.1 Meaning of the symbols on the unit . . . . . . . . . . . . . . . . . . . . . . 5
3 How to test insulation meters . . . . . . . . . . . . . . . . . . . . . . . . 6
4 How to test measuring instruments
for low-ohmic resistances . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
5 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
5.1 Measuring resistors for testing insulation meters . . . . . . . . . . . 11
5.2 Measuring resistors for testing measuring
instruments for low-ohmic resistances . . . . . . . . . . . . . . . . . . . 11
5.3 Nominal range of use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
5.4 Environmental conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
5.5 Electrical safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
5.6 Mechanical configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
6 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
6.1 Case . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
6.2 Device Return and Environmentally Compatible Disposal . . . . . . 13
7 Product Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
8 Repair and Replacement Parts Service
Calibration Center and Rental Instrument Service . . . . . . . . 14
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