Trust the High Current Capability of the Megger DLRO 600 Digital Micro-Ohmmeter

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  • 3 min read

The resistance of a correctly installed electrical device increases over time due to temperature, cycling, fatigue corrosion and vibration. As gradual degradation builds up, the electrical device will reach a point where it cannot operate properly anymore. Testing the resistance changes of the joints and metal contacts can help give a picture of the condition of your device.

Air, moisture, mechanical and electrical stress can affect an electrical device’s connections. This can weaken metal contact points of circuit breakers, relays and terminal connectors of electrical devices.

Mechanical stress caused by vibration while it is operating can also degrade a connection. Electrical connections can overheat due to the increased resistance between the connections. It can also cause significant power loss in your electrical system that adds to your operating costs. All of these factors can cause an electrical system to eventually fail.

Megger-DLRO600DLRO or digital low resistance ohmmeter can measure the resistance of these devices. The resistance should be within a certain range depending on the material being tested. Any additional resistance above the expected value is an indicator of a degrading joint or connection.

The Megger DLRO 600 Digital Micro-Ohmmeter provides test currents from 10 amps up to 600 amps subject to the load resistance and supply voltage.

The high current capability and compact design make the Megger DLRO 600 suitable for testing circuit breaker contacts, switch contacts, busbar joints or other applications where high current is needed.

Megger DLRO 600 Digital Micro-Ohmmeter features:

– Small and weighs less than 33 lbs (15 kg)
– Test currents from 10 A to 600 A dc
– 0.1 µohms best resolution
– On board memory for up to 300 test results and notes
– RS232 port to download stored results or for real time output to a printer
– Supplied complete with 16.4 ft (5 m) test leads and download software

Megger is one brand you can count on, and Protec offers for rent, lease or purchase, all the electrical testing equipment you need to get the job done. 



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