Hioki IR4051 - Page 3

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Contents
2.5.1 Lock Function ................................ 28
2.5.2 Measuring Insulation Resistance... 30
2.5.3 Switching the Number of
Display Digits ................................ 32
2.5.4 Displaying 1-min. Values .............. 34
2.5.5 Voltage Characteristic of Measuring
Terminals ....................................... 35
2.6 Discharging Function ................................ 36
2.7 Voltage Measurement............................... 37
2.7.1 Negative Voltage Detection .......... 39
2.8 Low Resistance Measurement ................. 40
2.9 PVΩ Measurement ................................... 42
2.10 Auto power save (power-saving function) . 50
2.11 Auto-backlight-off ...................................... 50
Chapter 3 Specifications 51
Chapter 4 Maintenance and Service 63
4.1 Troubleshooting ........................................ 63
4.2 Replacing Batteries or Fuse...................... 68
4.3 Replacing the Pin (Option)........................ 71
4.4 Cleaning.................................................... 72
Appendix A1
HIOKI IR4051A981-09