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Megger MFT70-US User Manual

Megger MFT70-US
40 pages
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MFT70-US
Multifunction Tester
With On - board memory
User Manual

Table of Contents

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Megger MFT70-US Specifications

General IconGeneral
TypeMultifunction Tester
Insulation Resistance MeasurementYes
Continuity TestingYes
Loop TestingYes
RCD TestingYes
DisplayLCD with backlight
BatteryRechargeable Li-ion
Frequency Range45 Hz to 65 Hz
RCD Trip Time Range0 ms to 2000 ms
IP RatingIP54
Safety RatingCAT III 600 V, CAT IV 300 V
RCD Trip Time0 ms to 2000 ms
Operating Temperature-10 °C to +55 °C
Storage Temperature-20 °C to +60 °C
Continuity Range0.01 Ω to 2000 Ω
Insulation Resistance Test Voltages50 V, 100 V, 250 V, 500 V, 1000 V
Insulation Resistance Range0.01 MΩ to 1000 MΩ
Loop Impedance Range0.01 Ω to 2000 Ω
PSC/PFC Range20 A to 20 kA
RCD Test Currents30 mA, 100 mA, 300 mA
Resistance Range0.01 Ω to 2000 Ω
Insulation Test Voltage250 V, 500 V, 1000 V
RCD Trip Current10 mA, 30 mA, 100 mA, 300 mA

Summary

SAFETY WARNINGS

General Safety Warnings

Important safety warnings and precautions for using the instrument.

Live Ground Safety Precautions

Precautions for working with 'live' grounds and ensuring proper isolation.

Introduction

Battery and Fuse Location and Replacement

Details on locating, fitting, and replacing batteries and fuses.

Operation

General Operation

Basic steps for turning the instrument on/off and using general features.

Test Inhibit Conditions

Details conditions that prevent testing in various modes (Insulation, Continuity, GFCI, Ground).

Voltage Measurement

Procedure for making voltage measurements using test leads or mains plug lead.

Continuity and Resistance Measurement

How to perform continuity and resistance measurements, including lead nulling.

Making Insulation Measurement

Step-by-step guide to performing insulation resistance tests.

GFCI Testing Overview

Introduction to GFCI testing, including function button options and ramp test.

GFCI Measurement and Touch Voltage

Details on GFCI trip current, touch voltage display, and calculation.

Ground Resistance Measurement

Explanation of ground resistance measurement methods and connection terminals.

Setup options

Configuration Options

Details on various setup options for configuring the instrument's functions.

General Information

Repair, Warranty, and Service

Information on instrument repair, warranty, and returning for service.

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