Micro Ohmmeters

  • Product No:RMO-G Series
  • Manufacturer:IBEKO Power AB (DV-Power)

RMO-G series of Micro Ohmmeters (hereafter referred to as “RMO-G”) is based on a state of the art technology, using the most advanced switch mode technique available today.RMO-G generates a true DC ripple-free current with automatically regulated test ramps. During a test the RMO-G ramps with increasing current before measuring and decreasing current after the measurement. This eliminates magnetic transients.


The RMO-G instrument can store internally up to 500 measurements. All measurements are time and date stamped. Using the DV-Win software a test can be performed from a user’s PC, and the results can be obtained directly on the PC. Communication between the RMO-G and a PC is through an USB (as standard) or an RS232 cable (as an option). Bluetooth communication interface is also available as an option.Using the DV-Win the result can be arranged as an Excel spread-sheet which can be later shown as a diagram and printed for a report.


The set is equipped with a thermal and an overcurrent protection. The RMO-G has a very high ability to cancel electrostatic and electro-magnetic interference in HV electric fields. It is achieved by very efficient filtration. The filtration is made utilizing a proprietary hardware and software.


  • Power circuit breakers (including dead-tank circuit breakers)

  • Disconnecting switches

  • Interrupters

  • Bar installation

  • Cable splices

  • Welded joints

  • Groundings


ModelsRMO100G, RMO200G, RMO300G,RMO400G, RMO500G, RMO600G, RMO800G
Current Range5 A – *800 A

 

*800A for RMO800G model, 100 A for RMO100G

Resistance Range0,1 µΩ – 999,9 mΩ
Resolution0,1 µΩ
Accuracy± (0,1 % rdg + 0,1 % FS)
SINGLE / CONTIN testYES
DTRtest modeYES
Both Sides GroundedYES (with current clamps)
Demagnetization featureNO
Built-in thermal printerYES (optional)
Pass/Fail criteriaYES (Rmax feature)
Communication portsUSB
RS232 (optional)
Bluetooth (optional)
PC SoftwareYES (DV-Win software)


RMO-G series contain 7 models of powerful and lightweight micro ohmmeters:

  •    
  • RMO100G
  • – test current from 5 to 100 A, weighs only 8 kg / 17.6 lbs

  •       
  • RMO200G
  • – test current from 5 to 200 A, weighs only 8 kg / 17.6 lbs

  •       
  • RMO300G
  • – test current from 5 to 300 A, weighs only 8 kg / 17.6 lbs

  •       
  • RMO400G
  • – test current from 5 to 400 A, weighs only 9 kg / 20 lbs

  •       
  • RMO500G
  • – test current from 5 to 500 A, weighs only 9 kg / 20 lbs

  •       
  • RMO600G
  • – test current from 5 to 600 A, weighs only 11 kg / 24.3 lbs

  •       
  • RMO800G
  • – test current from 5 to 800 A, weighs only 11,5 kg / 25.4 lb


  • Measuring range: 0,1 μΩ – *999,9 mΩ (*499,9 mΩ for RMO800G)
  • Resolution: 0,1 μΩ
  • Typical accuracy: ± (0,1 % rdg + 0,1 % FS)
  • Remote Control Unit (optional)
  • Both Sides Grounded Unit (optional)
  • SINGLE / CONTIN / BSG / DTRtest modes