Insulation Resistance Testers Offer Precision and Accuracy

Description

A series of insulation resistance testers are now capable of safely testing high- and low-voltage equipment. These four models (MIT515, MIT525, MIT1025 and MIT1525) can easily test voltage power cables and buses, large motor/generator windings as well as line and substation transformers for insulation resistance.

 

Each tester is lightweight with a lithium-ion battery that continuously tests for up to six hours on a single battery charge.  The unit can also keep taking measurements when the battery is fully discharged as long as the unit is still connected to line power. This is designed to obtain an optimal charge in minimal time.

 

All of the models can deliver short circuit current with Megger’s max power regulation technology, which ensures maximum power transfer at 3 mA for any load until the desired test voltage is reached.

 

The MIT525, MIT1025 and MIT1525 perform a variety of tests for QA testing in manufacturing processes, diagnostic testing to isolate faulty components for repair, and routine preventative/predictive maintenance testing after an installation. 

Specs

MIT515, MIT525:

  • Both of these 5 kV units offer 5% accuracy up to 1 TΩ

MIT1025:

  • This 10 kV unit offers 5% accuracy up to 2 TΩ

MIT1525:

  • This 15 kV unit offers a 5% accuracy with a maximum resistance up to 3 TΩ

 

All Models

  • Rated for use at an altitude of 3,000 meters and still maintain CAT IV 600 V safety rating
  • Noise filter that can reject up to 3 mA on the 5 kV and 10 kV models and 6 mA on the 15 kV model
  • Additional user-defined test voltage that can be set by the operator and a voltage lock to guard against excessive test voltages being applied to sensitive equipment
  • Voltmeter function ranging from 30 V to 660 V to check for induced voltages
  • A rotary switch dial that makes selecting test voltage, test mode, memory and other functions easy.
  • Enhanced driver technology that provides plug-and-play when connected to the internet
  • High quality, flexible silicon test leads that meet safety regulations of IEC 61010-31:2008
  • Large backlit LCD screen
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