RMO-H Series Handheld Micro Ohmmeters - Beijing Kanggaote Instruments and Equipment

Product introduction

The RMO-H series – battery-operated and handheld micro-ohmmeters are unique solution for the contact resistance measurement of switchgears according to international standards (e.g. IEC 62271-100). RMO-H can be used for number of applications where non-inductive resistance is checked, during factory inspections or testing in the high-induction field environments. The set is equipped with the overcurrent protection.

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Handheld – only 0,95 kg / 2.1 lbs
▪ Powerful – regulated current up to 300 A DC
▪ No rest time needed between the tests
▪ High-capacity Li-Po battery (2 types available):
- 8800 mAh, 3,8 V DC (RMO-H1, -H2, -H3)
- 4400 mAh, 7,6 V DC (RMO-H21, -H22, -H23)
▪ Measuring range 0,1 μΩ – 3000 mΩ
▪ Typical accuracy ± (0,1 % rdg + 0,1 % FS)
▪ Both Sides Grounded Measurement

Typical application is accurate low resistance measurement during manufacturing, commissioning and
maintenance inspections on:
▪ High and medium voltage Switchgears and Circuit Breakers (as per IEC 62271-100 standards)
▪ High and medium voltage Disconnecting Switches (as per IEC 62271-100 standards)
▪ High-current Busbar joints
▪ Terminals of the conductors on HV power lines
▪ Bonding of Lighting conductors
RMO-H instruments are also ideal testing tool for quality control checking during production process of
high-voltage equipment and equipment used in railway and aircraft industry:
▪ Welding joints
▪ Cable splices and cable resistance
▪ OLTC contacts checking (off-line, not connected to transformer)
▪ Railway joints, lines and conductor rails
▪ Bonds and joints checking in aircraft manufacturing industry

RMO-H Series Handheld Micro Ohmmeters