DV Power RMO200 - DV Power RMO200 High DC Current Resistance MicroOhmMeter on ElectricityMetering.com

RMO200 is a micro-ohmmeter based on state of the art technology, using the most advanced switch mode technique available today. RMO200 generates true DC current with automatically regulated test ramps. During the test RMO200 ramps with increasing current before measuring and decreasing current after the measurement. This eliminates magnetic transients.

After the test current has been set, the automatic test procedure is started by pressing the Ω-button. The test result is displayed as R=U/I. There is enough memory in RMO200 to store 100 measurements. All measurements are time and date stamped. They can also be exported to a PC with RMO-Win software. The software connects a PC to RMO200 with a RS232 cable. The RMO-Win makes it easy to report and analyse all results.

The set is equipped with thermal and overcurrent protection. RMO200 has very high ability to cancel electrostatic and electromagnetic interference in high HV electric fields. It is achieved by very efficient filtration. The filtration is made utilizing appropriate hardware and software.

Output Ratings

The full output is available from the RMO200 at 230V Mains Supply. A reduced output is available from lower supply voltages.

Supply Voltage       Output Current       Full Load Voltage

230 V AC                   200 A DC              6,0 V DC
115 V AC                   200 A DC             6,0 V DC

Output current is filtered and has a ripple of less then 1%.

The RMO200 output is rated at 200 A for 2 minutes and 100 A continuously at 25°C ambient.

CONT Mode

RMO200 can generate DC current continuously using the CONT menu. In this menu the current can be chosen the same way like in the SINGLE menu, but the duration of the test can be preset. The test is started pressing the Ω-button. During the test, a new result is shown on the display each second.

Typical application is measuring resistance of:

high, middle and low voltage circuit breakers
high, middle and low voltage disconnecting switches
high-current bus bar joints
cable splices
welding joints

More Information

See the DV Power RMO200 Brochure

Home > DV Power RMO200 High DC Current Resistance MicroOhmMeter

DV Power RMO200 High DC Current Resistance MicroOhmMeter