GMC-I Messtechnik GmbH
3
Table of Contents
Page
1
Applications .................................................................................................................... 4
2
Safety Precautions ......................................................................................................... 4
3
Standard Equipment and Accessories ............................................................................ 6
4
Connecting the Test Case to the Mains and Testing the Mains Connection ..........................6
4.1
Connecting the Test Case ................................................................................................................. 6
4.2
Testing Protective Conductor Potential ............................................................................................... 6
4.3
Measuring Line Voltage .................................................................................................................... 7
5
Connecting the DUT to the Test Case ............................................................................. 8
5.1
Protection Class I Devices ................................................................................................................. 8
5.2
Protection Class II and III Devices ...................................................................................................... 9
5.3
Devices with Single or Multi-Phase Connection without Plug ............................................................... 9
5.4
Stationary Devices for Protective Conductor Testing via the Supply Mains .......................................... 10
5.5
Data Processing Equipment ............................................................................................................ 10
5.6
Extension Cables with the VL2 E Accessory ..................................................................................... 11
5.7
Setting the Switches at the Test Case .............................................................................................. 11
5.8
Setting the Switches at the Device Under Test ................................................................................. 11
6
Testing Devices in Accordance with DIN VDE 0701-0702 ............................................ 12
6.1
Measuring Protective Conductor Resistance for Protection Class I Devices ......................................... 12
6.2
Measuring Insulation Resistance ..................................................................................................... 13
6.3
Measuring Protective Conductor Resistance ..................................................................................... 15
6.3.1 Equivalent Leakage Current ............................................................................................................ 15
6.3.2 Differential Current Measurement for Protection Class I Devices ........................................................ 16
6.4
Measuring Contact Current ............................................................................................................. 17
6.4.1 Contact Current Measurement – Differential Current ........................................................................ 17
6.4.2 Testing in Accordance with the Direct Method ................................................................................. 17
6.5
Measuring Load Current and Voltage at the Consumer ..................................................................... 18
7
Testing Extension Cables with the VL2 E Accessory .................................................... 19
7.1
DIN VDE Tests for Extension Cables ................................................................................................. 19
7.2
Function Test for Extension Cables .................................................................................................. 19
8
Continuity Test with Extra-Low Voltage ........................................................................ 20
9
Display and Indicators at the Test Instruments ............................................................ 20
9.1
Indication of Errors and Limit Values ................................................................................................ 20
10
Technical Data .............................................................................................................. 21
10.1 Test case ...................................................................................................................................... 21
10.2 METRATESTER 5+ Test Instrument ................................................................................................. 22
11
Maintenance – Recalibration ........................................................................................ 25
11.1 Housing Maintenance ..................................................................................................................... 25
11.2 Recalibration .................................................................................................................................. 25
11.3 Periodic Self-Test of the Connector Cable for Protective Conductor Continuity .................................... 26
11.4 Testing the Integrated RCD (residual current circuit breaker) ............................................................. 26