The MOM690 micro-ohmmeter with on-board test control has been made to supplement our family of microhmmeters. In addition to high current capacity, the MOM690, features microprocessor-based measurement, storage, and reporting. The built-in software enables you to carry out an individual test or an entire series of tests and store the results. With the optional MOMWin software you can also export the test results to a PC for further analysis and reporting.


With the MOM690, ranges are set automatically, resistances are measured continually, and test results can be automatically captured at a preset test current - what could be simpler?


After testing a breaker with a CT mounted in its current circuit, e.g., dead tank and GIS circuit breakers, some standards recommended that the CT is demagnetized. This troublesome task can be accomplished quickly and easily thanks to the MOM690's AC output. The AC output can also be used as a general multi-purpose current source for different applications.

Ammeter

Range: 0 – 800 A

Resolution: 1 A

Inaccuracy: 

100 – 800 A, ±1% of reading + 1 digit

50 – 99 A, ±(2% of reading + 2 digits)

0 – 49 A, not specified


Measurement 

Range:  0 – 200 mΩ, > 200 mΩ not specified

Resolution: 1 μΩ

Inaccuracy: 

100 – 800 A, ±1% of reading + 1 digit

50 – 99 A, ±(2% of reading + 2 digits)

0 – 49 A, not specified


Output, 115 V model

Current: 0 – 600 A DC

Open circuit voltage: 5.2 V DC

Current shunt output: 

10 mV / 100 A ±0.5%, max 60 mV out, max 10 V to protective earth (ground)


Output, 230 V model

Current: 0 – 600 A DC

Open circuit voltage: 9 V DC

Current shunt output: 

10 mV / 100 A ±0.5%, max 60 mV out, max 10 V to protective earth (ground)


Max. load capacity, 115 V model (Current adjustment set to 100%)

Output current | Min. output voltage | Max. load

time | Rest time | Input current

100 A DC | 4.6 V DC | -- | -- | 8 A

300 A DC | 3.8 V DC | 1.5 min. | 15 min. | 20 A

600 A DC | 2.6 V DC | 10 s | 5 min. | 38 A


Max. load capacity, 230 V model (Current adjustment set to 100%)

Output current | Min. output voltage | Max. load

time | Rest time | Input current

100 A DC | 8.3 V DC | -- | -- | 6 A

300 A DC | 7.2 V DC | 2.5 min. | 15 min. | 16 A

600 A DC | 5.6 V DC | 15 s | 5 min. | 32 A





MOM600A datasheet


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