IET Labs, Inc. 1864-1644, User And Service Manual

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CONTENTS, FIGURES, AND TABLES
1864-1644 Positive Polarity Megohmmeter
i
Contents
Condensed Operating Instructions ..........................................................iv
Specifi cations .............................................................................................v
1864-1644 Speci fi cations ............................................................................................... v
Chapter 1: INTRODUCTION .......................................................................1
1.1 Description ............................................................................................................... 1
1.2 Opening and Tilting the Cabinet .............................................................................. 1
1.3 Controls, Connectors and Indicators ........................................................................ 1
1.4 Symbols.................................................................................................................... 5
1.5 Connections .............................................................................................................. 5
Chapter 2: INSTALLATION .........................................................................7
2.1 Initial Inspection ...................................................................................................... 7
2.2 Dimensions .............................................................................................................. 7
2.3 Repackaging for Shipment ....................................................................................... 7
2.4 Storage ..................................................................................................................... 8
2.5 Bench Setup ............................................................................................................. 8
2.6 Rack Mounting ......................................................................................................... 8
2.7 Power Connections .................................................................................................. 8
Chapter 3: OPERATION .............................................................................9
3.1 Measurement Setup ................................................................................................. 9
3.1.1 Ground-Link Connection ............................................................................... 9
3.1.2 Test Voltage Selection .................................................................................... 9
3.1.4 Connection of Unknown ................................................................................ 9
3.2 Measurement Procedure ................................................................................... 10
3.2.1 General ........................................................................................................... 10
3.2.2 Search Procedure ........................................................................................... 10
3.2.3 Sort Procedure ............................................................................................... 10
3.2.4 Shock Hazard ................................................................................................ 10
3.3 Output Jack .............................................................................................................. 11
Chapter 4: APPLICATIONS ........................................................................13
4.1 Insulation Testing ..................................................................................................... 13
4.2 Test Sample Resistivity Measurements .................................................................... 14
4.3.1 General ........................................................................................................... 14
4.3.2 Charging Time Constant ................................................................................ 14