Megger DET Series - User Manual

DET Series
EARTH GROUND ELECTRODE TESTERS
USER GUIDE

Summary

Safety Warnings

Live Earth Safety Precautions

Specific warnings and precautions for handling live earth connections safely.

General Operating Instructions

Instrument output voltage selection

Description of Tests

Suitable applications

Principle of operation (two-terminal resistance measurement)

Explains the method used for measuring resistance between two earth points.

Principle of operation (three-terminal resistance measurement)

Principle of operation (three-terminal resistance measurement using ART)

Details the Attached Rod Technique (ART) for measuring resistance without disconnecting the electrode.

Principle of operation (two-clamp stakeless resistance measurement)

Principle of operation (four-terminal resistivity measurement)

Describes the four-terminal method for soil resistivity measurement.

Measurement of ground noise voltage (DET3 TC, DET3 TD, DET4 TD2, DET4 TR2, DET4 TC2 and DET4 TCR2)

Measurement of ground noise voltage (DET3 TA)

Two-terminal resistance measurement (DET3 TC, DET3 TD, DET4 TD2, DET4 TR2, DET4 TC2 and DET-4 TCR2)

Two-terminal resistance measurement (DET3 TA)

Three-terminal resistance measurement (DET3 TC, DET3 TD, DET4 TD2, DET4 TR2, DET4 TC2 and DET4 TCR2)

Three-terminal resistance measurement with lead null (DET4 TD2, DET4 TR2, DET4 TC2 and DET-4 TCR2)

Four-terminal resistivity measurement (DET4 TD, DET4 TR2, DET4 TC2 and DET4 TCR2)

Measurement of ground current (DET3 TC, DET4 TC2 and DET4 TCR2)

Three-terminal resistance measurement using ART (DET3 TC, DET4 TC2 and DET4 TCR2)

Two-clamp stakeless measurement (DET4 TC2 and DET4 TCR2)

MCC CLAMP calibration (DET3 TC, DET4 TC2 and DET4 TCR2)

Technical Specification DET3 Tx & DET4 Tx

MCC CLAMP SPECIFICATIONS

MVC CLAMP SPECIFICATIONS

Repair and Warranty

Calibration, Repair and Spare Parts

Contact information for calibration, repair, and spare parts services.

Returning your product to Megger - UK and USA service centres

Megger DET Series Specifications

General

Operating Temperature	-10°C to +50°C
Storage Temperature	-20°C to +60°C
Ingress Protection	IP54
Resistance Range	0.01 Ω to 200 kΩ
Voltage Range	Up to 50 V
Test Frequency	128 Hz
Display	Digital LCD
Safety Standard	IEC 61010-1