3
Contents
Introduction .......................................................................................... 7
Checking Package Contents ...............................................................8
Options (Sold Separately) ...................................................................9
Symbols and Abbreviations ............................................................... 11
Safety Information .............................................................................13
Precautions for Use ...........................................................................15
1 Overview 17
1.1 Product Overview ............................................................17
1.2 Features .......................................................................... 19
1.3 Part Names and Functions .............................................20
2 Preparing for Measurement 27
2.1 Inserting/Replacing Battery ............................................. 27
2.2 Installing the Z3210 Wireless Adapter ............................31
2.3 Setting and Checking Date and Time .............................33
Setting date and time ...............................................................33
Checking date and time ...........................................................34
2.4 Connecting Test Leads ...................................................35
3 Making Measurements 37
3.1 Measurement Procedure ................................................37
3.2 Pre-Operation Inspection ................................................38
3.3 Measuring Insulation Resistance ....................................41
Retention of the measured value .............................................45
3.4 Automatic Discharge Function ........................................46
3.5 Filter Function .................................................................47
3.6 Use of GUARD Terminal .................................................48
Measurement unaected by surface electrical resistance ....... 48
Measurement using G (GUARD) terminal grounding...............49
3.7 Measuring Voltage ..........................................................50
3.8 Negative Voltage Notication Function (IR5051 Only) ....52
3.9 PV Insulation Resistance Measurement Function
(IR5051 Only) ..................................................................53
IR5050A961-00
Contents