Insulation testing

This series will find applications in electrical contracting, both on domestic and industrial systems, as well as site maintenance and service departments.



0,25k/0,5kV/1kV d.c. pocket sized insulation and continuity tester


Model: Serie MIT200

Producer: Megger

country of origin: United Kingdom


This device is useful for testing transformers, motors, generators, sweitcgear, panel building, domestic applicacnes, power tools, etc, as wel as fixed electrical wiring systems.

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Key features
Insulation testing to 1000 MΩ
Continuity testing at 200 mA down to 0.01 Ω
Live circuit warning (voltage display) and test inhibit
Digital/analogue display
Alkaline or rechargeable batteries
–10 °C to +55 °C operating temperature
CAT III 600 V
Conforms to EN 61557


Description

The MIT200 is one of the most compact insulation testers available on the market today. With options of one, two and three test voltage instruments, the MIT200 series offers a surprising range of safety and operational features.The display offers a combination of digital readout and analogue display, using Megger’s patented DART technology, so includes the benefits of an LCD display such as clear, accurate measurement and precise readings, with an analogue pointer response for evaluating circuit charge and discharge characteristics.The instrument housing is in tough ABS , designed to withstand the rigours of hard day-to-day use, and is small enough to drop into your pocket or toolbag Battery requirements are 6 AA batteries of either standard alkaline or nickel metal hydride (NiMH) rechargeable type. A low battery warning indicator gives advanced warning of exhausted batteries






Features

Automatic continuity testing is performed at 200 mA to ensure compliance with international requirements. The convenient autostart feature means there is no need to press the test button to begin the test -both hands can be used to hold the test lead probes.All instruments will measure up to 100 Ω on continuity, with 0-10 Ω using 200 mA so meeting international electrical testing requirements.Lead null is possible up to 9.99 Ω of test lead resistance, providing the ability to null fused, extended or standard test leads.

A buzzer provides a means of rapid cable testing and circuit continuity identification, with voltage protection should you accidentally touch a live circuit. The buzzer operates at a 2 Ω threshold.

There are four instruments in the range offering range configurations shown in the table on page 2, providing an ideal entry-level solution to most low voltage insulation testing applications. Insulation test ranges include 250 V; 500 V and 1000 V depending on model. Auto discharge ensures all circuits under test are safely discharged after testing.Note: the 1000 V insulation test range provides a high voltage warning prior to test voltage being applied.

Every Megger instrument is designed with safety as its primary objective. There are in-built safety checks to warn of inadvertent connection to a hazardous live supply on all ranges, and all instruments meet or exceed the requirements of safety directive IEC 61010 and EN 61557 for insulation and continuity testing

A built-in voltmeter is automatically activated and displays the system voltage when the instrument is connected to a circuit with an a.c. or d.c. voltage greater than 25 V.

Circuits in excess of 25 V will generate a voltage warning as above. The instrument will inhibit testing on circuits over 50 V on both continuity and insulation test ranges, protecting the operator and the instrument from injury or damage.

The MIT200 series has been designed for use on applications up to 600 V CAT III.






Specifications
Digital/Analogue Insulation and continuity testers
MIT200
MIT210
MIT220
MIT 230
Insulation testing
250V
Yes
Yes
500V
Yes
Yes
Yes
1000V
Yes
Yes
1000 MΩ range
Yes
Yes
Yes
Auto-ranging
Yes
Yes
Yes
Yes
Auto-discharge
Yes
Yes
Yes
Yes
Test inhibit
Yes
Yes
Yes
Yes
Live circuit voltage display
Yes
Yes
Yes
Yes
Continuity testing
Continuity @ >200mA
Yes
Yes
Yes
Yes
Continuity @ 0,01 Ohm
Yes
Yes
Yes
Yes
Teste lead null (9,99 Ohm)
Yes
Yes
Yes
Yes
Automatic continuity test
Yes
Yes
Yes
Yes
Continuity buzzer with 2Ω threshold
Yes
Yes
Yes
Yes
Default volts warning
Yes
Yes
Yes
Yes
General
Digital display + arc
Yes
Yes
Yes
Yes
Battery condition
Yes
Yes
Yes
Yes
Auto power down
Yes
Yes
Yes
Yes
Tough carry case
Yes
Yes
Yes
Yes
Test leads
Yes
Yes
Yes
Yes
CATIII 600V
Yes
Yes
Yes
Yes
Environmental
Operation temperature
-10 °C - +55 °C
Storage temperature
-20 °C - +65 °C
Protection rating
IP 40



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