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Contents
Introduction .........................................................................1
Verifying Package Contents ..............................................1
Safety Information .............................................................. 4
Operating Precautions ....................................................... 8
1 Overview 13
1.1 Product Overview ..........................................13
1.2 Names and Functions of Parts ....................14
2 Preparing for Measurement 21
2.1 Replacing Batteries or Fuse .........................22
2.2 Using the L9788-10 Test Lead with
Remote Switch (Red) ....................................25
2.3 Installing the Z3210 Wireless Adapter
(IR4057-50 only) .............................................27
3 Measurement 29
3.1 Pre-measurement Inspection ....................... 29
3.2 Auto Power Save (Power-Saving Function) 30
3.3 Auto Backlight-off (Automatic Light-off
Function) ........................................................ 30
3.4 Comparator Function ....................................31
Setting the Comparator .............................................32
Canceling the Comparator ........................................ 33
3.5 Insulation Resistance Measurement ...........34
Lock Function ...........................................................35
Measuring Insulation Resistance .............................. 36
Displaying 1-minute Values (IR4057-50 only) ...........37
Voltage Characteristics of Measurement Terminals ..38
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Appx.
索引