METREL MI 3205 - Page 4

MI 3205 TeraOhm XA 5kV Table of contents
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5.1.3 Typical insulation tests ......................................................................... 30
5.1.4 Electrical representation of insulating material .................................... 31
5.2 Some application examples ........................................................................ 32
5.2.1 Basic Insulation resistance test ........................................................... 32
5.2.2 Voltage dependence test – Step Voltage Test ..................................... 32
5.2.3 Time dependence test – Diagnostic Test ............................................. 32
5.2.4 Withstanding Voltage Test ................................................................... 34
5.3 Guard terminal ............................................................................................ 35
5.4 Averaging options ....................................................................................... 36
5.4.1 The purpose of averaging .................................................................... 36
5.4.2 Example of averaging .......................................................................... 37
5.5 Measurement menu .................................................................................... 38
5.6 Insulation Resistance Measurement ........................................................... 39
5.6.1 Set Limit ............................................................................................... 41
5.7 Diagnostic test ............................................................................................ 42
5.7.1 Dielectric Absorption Ratio (DAR) ........................................................ 44
5.7.2 Polarization Index (PI) ......................................................................... 44
5.7.3 Dielectric Discharge Testing (DD) ........................................................ 45
5.8 Step Voltage testing .................................................................................... 47
5.9 Withstanding Voltage Test .......................................................................... 49
6 Communication ................................................................................................. 51
7 Maintenance ...................................................................................................... 52
7.1 Batteries insertion and replacement ........................................................... 52
7.2 Cleaning ...................................................................................................... 54
7.3 Periodic calibration...................................................................................... 54
7.4 Service ........................................................................................................ 54
8 Technical specifications ................................................................................... 55
8.1 General data ............................................................................................... 58
Appendix A – Remote Control ............................................................................... 59