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.
Key Features
AC output
Easy-to-use
Automatic range settings
Specification
Specifications are valid at nominal input voltage and an ambient temperature of Plus 25°C, (77°F). Specifications are subject to change without notice.
CE-marking
LVD 2014/35/EU
EMC 2014/30/EU
RoHS 2011/65/EU
General
Mains voltage 115 / 230 V AC, 50 / 60 Hz
Power consumption (max) 115 V, 5980 VA (at 600 A output)230 V, 9660 VA
Protection Miniature circuit breaker, thermal fuse, software
Dimensions Instrument 350 x 270 x 220 mm(13.8” x 10.6” x 8.7”)
Transport case 610 x 290 x 360 mm(24.0” x 11.4” x 14.2”)
Weight, 115 V model 24 kg (52.9 lbs)38.9 kg (85.7 lbs) with accessories and transport case
Weight, 230 V model 23.7 kg (52.2 lbs)38.6 kg (85.1 lbs) with accessories and transport case
Available languages English, French, German, Spanish, Swedish
Measurement section
Ammeter
Range 0 – 800 A
Resolution 1 A
Inaccuracy 100 – 800 A, ±1% of reading + 1 digit50 – 99 A, ±(2% of reading + 2 digits)0 – 49 A, not specified
Resistance
Range 0 – 200 mΩ, > 200 mΩ not specified
Resolution 1 μΩ
Inaccuracy 100 – 800 A, ±1% of reading + 1 digit50 – 99 A, ±(2% of reading + 2 digits)0 – 49 A, not specified
Max. load resistance / current, 115 V model
| Cable set | Standard | Standard + Ext. 1 | Standard+ Ext. 2 | 2 x 15 m 95 mm² |
| At 300 A | 10 mΩ | 6 mΩ | 3 mΩ | 10 mΩ |
| Max. current | 575 A | 420 A | 360 A | 540 A |