Megger MOM2 Micro-ohmmeter

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The Megger MOM2 Micro-ohmmeter is a lightweight, handheld unit designed to deliver up to 240 Amps and measure the resistance of circuit breaker contacts, bus-bar joints, and other high-current links. This product is designed with safety, ease of use and versatility in mind.

The Megger MOM2 can be used anywhere to measure a low resistance value with high accuracy. With the MOM2, it is possible to make measurements according to the DualGround™ method. This means that the test object will be grounded on both sides throughout the test giving a safer, faster and easier workflow.

Its ruggedness and light weight make the MOM2 very suitable for field work, such as in substations. The unit comes with a strong rubber holster accessory which makes it extra durable. The MOM2 is capable of testing for a full day without recharge. It can store 190 test values and transfer test data to a PC via Bluetooth. The Bluetooth feature can also be used in conjunction with the wireless headset to provide an audible pass/fail signal against user-adjustable limits as tests are performed.

The MOM2 uses an ultra capacitor to generate the high-output current. Ultra capacitors are able to store huge amounts of energy compared to conventional capacitors. In addition, they can deliver very high currents during discharge as a result of their very low internal resistance.

While testing, the capacitor is discharged through the test object. The voltage drop across and the current flow through the test object are continuously and synchronously sampled. The resistances calculated from the individual samples are then averaged to obtain the final value.