It is important to measure low resistance in order to ensure that a device is still within its optimum resistance range.To measure low resistance, a digital low resistance Ohmmeter or DLRO is used. Protective devices and relay contacts are some components often tested for resistance problems, as these components are exposed to vibration, corrosion, electrical and thermal stress. Ideally, the contact points should have a resistance of a few microOhms to ensure maximum transfer of power. When the resistance of relay or circuit breaker contacts increase due to carbon deposition, corrosion and other contaminants, the contact points may heat up during operation. This can cause further degradation of the components and lead to eventual failure.
The Megger DLRO10HD 10A Digital Low Resistance Ohmmeter is a heavy duty Digital Low Resistance Ohmmeter model that combines simplicity of operation with selected high power ranges and the ability to simultaneously make measurements and charge the battery from line power. The Megger DLRO10HD provides five test modes each of which is selected via a rotary switch. Controls are simple and easy to operate in all weather conditions and with gloved hands operation.
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