User Manuals: Megger DET5/4D Ground Resistance Tester

Manuals and User Guides for Megger DET5/4D Ground Resistance Tester. We have 1 Megger DET5/4D Ground Resistance Tester manual available for free PDF download: User Manual

Megger DET5/4D User Manual

Megger DET5/4D User Manual (72 pages)

Digital Earth Testers

Brand: Megger | Category: Test Equipment | Size: 0 MB

Table of Contents

Safety Warnings
2
Table of Contents
3
Contents
3
Illustrations
4
General Description
5
Applications
7
Fig.1 DET5/4 Features and Controls
8
- Live Earth Safety Precautions
  9
- Conditions May Occur
  9
Features and Controls
8
Fig.3 Low Battery Voltage Indication
10
Operation
10
- General Testing Procedure
  10
- Display Symbols
  10
Fig.4 High Current Spike Resistance Warning
11
Fig.5 Excessive 'Noise' Warning
11
- Setting-Up the Test Spikes Etc
  12
Fig.6 Reverse Polarity Indication
12
- Basic Test Procedure
  13
- Battery Charging (DET5/4R)
  14
- Fitting or Replacing the Battery Cells
  14
- (Det5/4D)
  14
MEASURING TECHNIQUES Testing Earth Electrodes
15
- Fall-Of-Potential Method
  15
- The 61,8% Rule
  16
- Electrode and Current Spike
  17
Fig.10 the 61,8% Rule Method
17
- The Slope Method
  18
Fig.12 Resistance Curve from Slope Method
19
Tests
20
Fig.13 Possible Results from Several Slope Method Tests
20
- Method Using 'Dead' Earth
  21
Fig.14 'Dead' Earth Testing
21
- BS7671 (16Th Edition IEE Wiring Regulations) Requirements
  22
- Other Methods
  22
Fig.15 Test Spike Positions for BS7671
22
- Determining 'Touch' Potential
  23
Fig.16 Determining 'Touch' Potential
23
- Determining 'Step' Potential
  24
Fig.17 Determining 'Step' Potential
24
- Typical Variations in Soil Resistivity
  25
- Line Traverse
  26
Fig.18 Soil Resistivity Measurement
26
- Calculation of Resistivity
  27
Fig.19 Resistivity Calculation Nomogram
27
- Continuity Testing
  28
Fig.20 Continuity Testing
28
Fig.21 Block Diagram of Instrument Circuit
29
Circuit Description
29
Specifications
30
Fig.22 Instrument Accessories
34
Accessories
34
Chart for Use with Slope Method
35
Repair and Warranty
40
Guide de L'utilisateur
42
Gebrauchsanleitung
52
Guía del Usuario
62

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