Major Megger Insulation Testers

Major Megger Insulation Testers

 Major Megger Insulation Testers are available for Megger Distributor Sales, Megger Repair and Megger Calibration services.

 We offer repair for ALL the current Megger Meters and the discontinued Megger Meter Test Instruments.

 Major Megger Insulation Testers include the Megger 212159, Megger 212359, Megger 212459, Megger 212559, Megger 212160.

Some Key Features for the Major Megger Insulation Testers:

• No scale multipliers

• Multiple test voltages for spot and step voltage testing

• Guard terminal to eliminate surface leakage current

 The Megger MJ459 and Megger MJ159 replace the Megger BM12 and Megger MJ10.

 Contact us today for your confidential Major Megger Insulation Tester sales quote or your Megger Insulation Tester Repair or Calibration Service!

Four Megger – MajorMegger Insulation Tester models are available for general purpose testing which include a low-voltage model. All are portable, self-contained instruments designed to give rapid and accurate measurements.

Four of the Megger – MajorMegger insulation tester models feature an analog display having four selectable test voltages of 100, 250, 500 and 1000 V dc, measuring insulation resistance up to 2000 M-Ohms, and an ohm range to 5000 ohms. The other model has four test voltages of 50, 100, 250 and 500 V dc measuring insulation resistance up to 1000 M-Ohms.

The only other difference between the five analog models is the type of power source. Power forMegger MJ159 andMegger MJ160 is derived from a low-voltage, hand cranked generator which has been designed to be easy to turn even under full load conditions. The low-voltage generator is connected to an electronic inverter to provide a very stable test voltage. Accuracy of measurement is unaffected by variations in the generator cranking speed and the test voltage is maintained at its rated value. Power for model Megger MJ359 is provided by 120 V ac 50/60 Hz or low-voltage generator. Megger MJ559 is also 120 Vac 50/60 Hz or internal rechargeable batteries andMegger MJ459 is powered by 6 replaceable “AA” alkaline cells. As a safety feature, the ac voltage range becomes effective as soon as the instrument is connected to the circuit under test. Therefore, a warning is given that the circuit under test is not de-energized before the instrument is operated. Though calibrated for ac voltage, this range also monitors the automatic discharge feature so that after equipment having capacitance (i.e. a cable), has been tested, an indication can be given that the voltage has discharged to a level that is safe for removing the test leads. EachMegger instrument has a guard terminal which may be used to prevent the effects of surface leakage from influencing the readings. This is achieved by diverting the leakage current through the guard terminal and away from the instrument’s measuring circuit. Each majorMegger insulation tester instrument is built into a strongABSplastic case with a fold down carrying handle.