Table Of Contents - AEMC 3640 User Manual

1. INTRODUCTION ............................................................................... 3
1.1 International Electrical Symbols ................................................3
1.2 Definition of Measurement Categories .....................................4
1.3 Receiving Your Shipment ..........................................................4
1.4 Ordering Information .................................................................4
1.4.1 Kits, Accessories and Replacement Parts ....................5
2. PRODUCT FEATURES ...................................................................... 6
2.1 3640 Control and Connector Identification ...............................6
2.2 4610 Control and Connector Identification ...............................7
2.3 Fault Indicator LEDs .................................................................8
2.3.1 X-Z Fault .......................................................................8
2.3.2
2.3.3 X-Y High Noise
2.4 Over-range Indication ...............................................................9
2.5 Fault LED Indication - Tips and Solutions ................................9
3. SPECIFICATIONS........................................................................... 10
3.1 Electrical .................................................................................10
3.2 Mechanical .............................................................................. 11
3.3 Environmental ......................................................................... 11
3.4 Safety Specifications .............................................................. 11
3.5 Auto-ranging ...........................................................................12
4. OPERATION .................................................................................. 13
4.1 Grounding Electrode Resistance ............................................13
4.1.1 Effect of Ground Electrode Size and Depth
4.1.2 Effects of Soil Resistivity on Ground Electrode
4.1.3 Factors Affecting Soil Resistivity .................................17
4.1.4 Effect of Ground Rod Depth on Resistance ................19
Digital Ground Resistance Tester Model 3640 and 4610

Table of Contents

X-Y High Resistance
Xv-Y High Resistance
Xv-Y High Noise
on Resistance .............................................................15
Resistance ..................................................................16
(3640)
(4610) ............................................... 8
(3640)
(4610) ...................................................8
1