User manual

4 GMC-I Messtechnik GmbH
Contents Page
1 Safety Features and Precautions ..................................................................................5
2 Applications ...................................................................................................................6
3 Operating and Display Elements ...................................................................................6
3.1 Error and Limit Value Messages ....................................................................................................... 8
4 Mains Connection ..........................................................................................................9
4.1 Connecting the Tester ...................................................................................................................... 9
4.2 Testing Protective Conductor Potential ............................................................................................. 10
4.3 Measuring Mains Voltage ................................................................................................................ 10
4.4 Connecting the Device Under Test to the Test Instrument ................................................................. 11
4.4.1 DUT with protectiv conductor ( Safety Class I) and Mains Plug .......................................................... 11
4.4.2 Safety Class II DUT ........................................................................................................................ 11
4.4.3 DUT Without Mains Plug or Safety Class III DUT ............................................................................... 11
4.4.4 3-Phase DUT ................................................................................................................................. 11
4.5 General Measuring Procedures ....................................................................................................... 12
4.6 Residual Current Monitoring ............................................................................................................ 12
5 Testing Devices per DIN VDE 0701-0702 ....................................................................13
5.1 General ......................................................................................................................................... 13
5.2 Visual Inspection ............................................................................................................................ 14
5.3 Measuring Protective Conductor Resistance ..................................................................................... 14
5.3.1 Special case: permanently connected instruments ...........................................................................15
5.4 Measuring Insulation Resistance ..................................................................................................... 16
5.5 Measurement of protective conductor current ................................................................................. 17
5.5.1 Measuring Equivalent Leakage Current ............................................................................................ 18
5.5.2 Measuring Residual Current ............................................................................................................ 18
5.6 Measuring Contact Current ............................................................................................................. 19
5.6.1 Measuring Equivalent Leakage Current ............................................................................................ 19
5.6.2 Measuring Residual Current ............................................................................................................ 20
5.6.3 Direct Method ................................................................................................................................ 21
6 Measuring Load Current from the Mains Outlet ..........................................................22
7 Technical Data ............................................................................................................23
8 Maintenance – Calibration ..........................................................................................26
9 Repair and Replacement Parts Service
Calibration Center and Rental Instrument Service ......................................................27
10 Product Support ..........................................................................................................28