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Megger MIT400/2 User Manual

Megger MIT400/2
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MIT400/2 Series
Insulation and continuity testers
User guide

Table of Contents

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Megger MIT400/2 Specifications

General IconGeneral
BrandMegger
ModelMIT400/2
CategoryTest Equipment
LanguageEnglish

Summary

Introduction to Megger MIT400/2 Series

Safety Warnings and Symbols

Safety Symbols on the Instrument

Explains symbols marked on the instrument for user instructions, shock risk, and protection ratings.

WEEE Directive Compliance

Details the WEEE Directive regarding product disposal and Megger's registration.

Battery Disposal Guidelines

Provides instructions for disposing of batteries according to regulations.

General Description and Contents

Unpacking the Carton

Information regarding important documents to read and keep after unpacking.

Case Contents for All Instruments

Lists the items included in the instrument's case for various models.

Preparations for Use

Battery Installation and Checks

Information on fitting batteries and warnings regarding their cover.

Preliminary Test Lead Verification

Details functional verification steps for test leads before measurement.

Instrument Overview and Functions

General Functions and Controls

Describes rotary knob and keypad button functions for instrument operation.

Display Contents and Symbols

Explains the meaning of various symbols and readouts on the instrument display.

Terminal Overview for Connections

Illustrates and describes the input terminals for 2-terminal and 3-terminal configurations.

General Operating Instructions

Input Terminals and Connections

2 Terminal Test Lead Connection

Guide for connecting test leads to the instrument for 2-terminal measurements.

2-Terminal + Guard Connection

Details the use of the GUARD terminal for error reduction in specific tests.

3 Terminal Test Lead Connection

Explains how to connect and use 3 terminals for electrical and telecom applications.

3 Terminal Operation Modes

Describes how to switch between measurement pairs in 3-terminal operation.

SP5 Switched Probe Usage

Instructions for using the optional SP5 switched probe for hands-free testing.

Voltage and Frequency Measurements

2 Terminal AC/DC Voltage Measurement

Step-by-step guide for measuring AC Trms and DC voltage with 2 terminal instruments.

3 Terminal Voltage Measurement (2 Leads)

Procedure for measuring voltage using 2 leads on 3-terminal models.

3 Terminal Voltage Measurement (3 Leads)

Details measurements using all three test leads with 3-terminal instruments.

Result Storage for Measurements

Instructions on how to store measured results for specific instrument models.

Insulation Resistance Testing

Basic Insulation Testing (2 Terminals)

Step-by-step guide for performing insulation resistance tests using 2-terminal connections.

Buzzer and PASS/FAIL Indicators

Covers buzzer thresholds, ON/OFF control, and PASS/FAIL display for measurements.

Advanced Insulation Test Features

Explains Insulation Test LOCK and displaying leakage current.

Variable Voltage and PI/DAR Tests

Details variable voltage testing and PI/DAR test procedures for specific models.

Continuity Testing

Continuity Test Operation

Explains continuity test ranges, test current, and automatic start.

Single and Bi-directional Testing

Describes the default single direction test and how to enable bi-directional testing.

Test Lead Null Value

Procedure for removing test lead resistance from measurements.

Buzzer and PASS/FAIL Settings

Covers buzzer PASS/FAIL threshold, ON/OFF, and PASS/FAIL limit alarms.

Test Current Options

Details the configurable test current options for continuity testing.

Visual Fast Continuity (Silent Buzzer) Mode

Enables silent mode with PASS/FAIL indication and visual cues.

REL Mode for Resistance Measurement

Explains REL mode for relative resistance measurements.

Capacitance Measurements

Capacitance Measurement (2 Terminals)

Procedure for measuring capacitance using 2-terminal connections.

Distance Measurement by Capacitance

Details measuring cable length using capacitance on specific models.

Capacitance Measurement (3 Terminals)

Refers to section 7.3 for 3-terminal capacitance measurement.

Saving, Recalling, and Downloading Test Results

Saving Test Results

Procedure for storing measured results in the instrument's memory.

Recalling Test Results

Instructions on how to recall stored test results from the instrument.

Deleting Test Results

Procedure for deleting single or all stored test results.

Downloading Test Results via Bluetooth

Prepares instrument for Bluetooth communication to download results to a PC.

Pairing MIT to PC via Bluetooth

Step-by-step guide for pairing the instrument with a PC using Bluetooth.

Downloading Data to PC

Instructions for downloading test results from the instrument to a computer.

SETUP Configuration Options

SETUP Navigation and Options

Details the process of entering SETUP and configuring various options.

Technical Specifications

Insulation and Continuity Specifications

Lists accuracies and ranges for insulation and continuity measurements.

Frequency, Capacitance, and Storage Specs

Details specifications for frequency, capacitance, storage, and data download.

Power Supply, Dimensions, and Safety

Covers power supply, battery life, dimensions, weight, fuse, and safety standards.

Environmental and IP Rating Specs

Details operating/storage conditions, altitude, and IP rating.

Battery and Fuse Replacement

Battery Condition and Replacement

Explains the battery indicator and the procedure for replacing batteries.

Blown Fuse Indicator and Replacement

Describes the blown fuse indicator and the procedure for fuse replacement.

Preventive Maintenance

Guidelines for preventive maintenance, including test lead checks and cleaning.

Repair and Warranty Information

Repair, Warranty, and Service

Covers instrument repair, warranty terms, and calibration services.

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