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Ground Resistance Tester Model 6471
Table of Contents
1. INTRODUCTION ............................................................................... 6
1.1 International Electrical Symbols ...........................................................7
1.2 Definition of Measurement Categories
.................................................7
1.3 Receiving Your Shipment
.....................................................................7
1.4 Ordering Information ............................................................................8
1.4.1 Kits, Accessories and Replacement Parts ..............................8
2. PRODUCT FEATURES .................................................................... 10
2.1 Description .........................................................................................10
2.2 Key Features ......................................................................................11
2.3 Control Features ................................................................................12
2.4 Display ...............................................................................................13
2.5 Button Functions ................................................................................15
3. SPECIFICATIONS........................................................................... 16
3.1 Reference Conditions.........................................................................16
3.2 Electrical .............................................................................................16
3.2.1 Frequency Measurements ....................................................16
3.2.2 Voltage Measurements .........................................................16
3.2.3 Current Measurements .........................................................17
3.2.4 DC Resistance Measurements .............................................18
3.2.5 AC Earth/Ground Resistance Measurements .......................19
3.2.6 Soil Resistivity Measurement ρ
............................................21
3.2.7 Earth/Ground Measurements with 2 Clamps ........................22
3.3 Data Storage ......................................................................................22
3.4 Power .................................................................................................23
3.5 Mechanical .........................................................................................23
3.6 Environmental
....................................................................................24
3.7 Safety .................................................................................................24
4. OPERATION .................................................................................. 25
4.1 General Operating Instructions ..........................................................25
4.1.1 Automatic Mode ....................................................................25
4.1.2 Manual (Expert) Mode ..........................................................25
4.2 Instrument Configuration (SET-UP mode)
.........................................26
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