High DC Current Resistance Meter
Description
RMO600G is a Micro Ohmmeter based on a state of the art technology, using the most advanced switch mode technique available today. RMO600G generates a true DC ripple-free current with automatically regulated test ramps. During a test the RMO600G 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 RMO600G 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 RMO600G and a PC is through an USB (as standard) or an RS232 cable (as an option). Using the DV-Win the result can be arranged as an Excel spreadsheet 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 RMO600G has a very high ability to cancel electrostatic and electromagnetic interference in HV electric fields. It is achieved by very efficient filtration. The filtration is made utilizing a proprietary hardware and software.
Output Ratings
The full output is available from the RMO600G at 230 V Mains Supply. A reduced output is available from lower supply voltages.
The output current is filtered and has a ripple of less than 1 %. The RMO600G current output is rated at 600 A for 20 seconds, at 300 A for 90 seconds and 200 A for 2,5 minutes at 25°C ambient temperature.
CONTIN Mode
RMO600G can generate a DC current continuously using the CONTIN menu. In this menu the current can be chosen the same way as 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 and stored into the PC (DV-Win) each second. Using DV-Win the result can be arranged as an Excel spreadsheet which can be later shown as a diagram and printed for a report.
Application
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
Malaysia
