• CAT IV 600V applications
• TRMS & DC Voltage measurement
• Insulation testing up to 1000V and 200Gohms
• Continuity testing at 200mA or 20mA down to 0.01ohms
• Pass/Fail limit alarms
• Combined Analog and dual digital display
• PI/DAR and Timer function
  

* The MIT400 Series replaces th BM400 Series, BM80/2, BMM503, BM2000 Series and BM2500 Series

The new Megger MIT400, MIT410, MIT420, MIT430, MIT480, MIT481, MIT485, and MIT40X industrial insulation and continuity testers combine the latest range of measurement techniques with new instrument design to provide a state-of-the-art tester that is compact and comfortable to hold. The MIT400 series directly replaces the well established BM400 and BM80, given greater functionality with simplified operation, greater application range and increased safety.

Every tester is designed to meet the stringent international requirements of IEC1010-2 as well as those for EN61557,and sealed to IP54, providing a weatherproof case to reduce the chances of water ingress, including the battery and fuse compartment.

Rubber over molding combines the tough shock absorbing outer protection with excellent grip, on a strong modified ABS housing, providing an almost indestructible case.

Operation

Operation of all instruments is kept simple. All functions are displayed on the range selector, with additional push-buttons under the display.

The display has a major and minor 3 1/2 digit readout, plus an analogue arc. All primary results are displayed in the larger digits. Additionally, auxiliary test information such as frequency, leakage current, insulation or circuit voltage etc is displayed in the smaller secondary 3 1/2 digit display within the main window.

Insulation Testing

The insulation test voltages available range from 50 V to 1000 V depending on model, with a special 10V to 100 V tester for awkward low test voltages. Insulation resistance measurement extends from 20 G½ to 200 G½,with the option to display the insulation test voltage or leakage current on the secondary display.

Timed insulation testing of 30/60 seconds and 1min/10min for DAR/PI testing is also available on the MIT400, MIT410, MIT420, MIT430, MIT40X, but excludes the MIT480. A general timed measurement is also available with selectable 1 minute steps up to 10 minutes.

A buzzer threshold permits an operator to set a minimum buzzer limit. If the insulation resistance exceeds the mini-mum limit the buzzer sounds without the operator having to check the actual measured value.