MI 2088 Earth –Insulation Tester Table of contents
3
1. Introduction............................................................................................................4
1.1. General description...........................................................................................4
1.2. Warnings...........................................................................................................5
1.3. List of parameters measurable by the Earth - Insulation Tester........................6
1.4. Standards applied..............................................................................................6
2. Instrument description..........................................................................................7
2.1. Front panel........................................................................................................7
2.2 Connector panel.................................................................................................9
2.3. Bottom side......................................................................................................10
2.4. Standard accessories......................................................................................11
2.5. Optional accessories.......................................................................................11
2.6. Ways of carrying the instrument......................................................................11
3. Measurement instructions..................................................................................12
3.1. Insulation Resistance......................................................................................12
3.2. Voltage............................................................................................................16
3.3. Continuity of Protection Conductors................................................................18
3.4. Continuity........................................................................................................22
3.6. Specific Earth Resistance................................................................................31
3.7. Current (True RMS).........................................................................................34
3.8. Varistor Over-voltage Protection Devices........................................................36
4. Memory and other operations.............................................................................39
4.1. Storing of test results.......................................................................................39
4.2. Recalling of stored results...............................................................................40
4.3. Erasing of stored results..................................................................................42
4.4. RS 232 communication...................................................................................42
4.5. Reset of the instrument...................................................................................43
4.6. General setings...............................................................................................44
5. Maintenance.........................................................................................................45
5.1. Batteries..........................................................................................................45
5.2. Fuses...............................................................................................................46
5.3. Cleaning..........................................................................................................46
5.4. Periodic calibration..........................................................................................47
5.5. Service............................................................................................................47
6. Technical specification........................................................................................48
6.1. Functions.........................................................................................................48
6.2. General characteristics....................................................................................50
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