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The Megger MOM2 is designed to measure the resistance of circuit breaker contacts, bus-bar joints and other high-current links. The Megger MOM2 is designed with safety, ease of use and versatility in mind.
The MOM2 200A ductor uses an ultra capacitor to generate the high output current. The ultra capacitor is able to store a huge amount of energy compared to conventional capacitors and can deliver very high current during the discharge thanks to its very low internal resistance. The microhmmeter can be used anywhere to measure a low resistance value with high accuracy.
FEATURES
Breaker contact testing according to IEC and IEEE.
Up to 220 A (Initial current).
Battery powered (rechargable).
Up to 2200 measurements per charge.
Safe test - DualGround.
Reliable data log: data is stored with real time clock time stamp.
Pass / Fail function.
BluethoothPC communication (data transfer).
Display backlight.
High contrast LCD display.
All weather, all environment, all industry usage.
Megger MOM2 Product Video
Megger MOM2 Specifications
Specifications are valid at fully charged batteries and an ambient temperature of +25°C.
Measurement Specs
Minimum Current Guarantee
Selectable 50 A/100 A
Valid at resistance ?2 mΩ.
PASS/FAIL
Settable from 1 µΩ to 1999 mΩ.
Number of Measurements on Fully Charged Batteries
Typical 2200 at I min = 50 A and 0.1s
Typical 800 at I min = 100 A and 0.1s.
Interference Supression
Range
0 to 1000 mΩ.
Resolution
0 to 999 µΩ: 1 µΩ
1.0 to 9.99 mΩ: 0.01 mΩ
10.0 to 99.9 mΩ: 0.1 mΩ
100 to 1000 mΩ: 1 mΩ.
Inaccuracy
0 to 1999 µΩ: +1% of reading + 1 digit
2 to 500 mΩ: +2% of reading + 1 digit
500 to 1000 mΩ: +4% of reading + 1 digit.
Outputs
Range
>100 A DC (R < 2 mΩ).
Output Voltage (max)
2.5 V DC.
Generation Duration
Selectable: 0.1s, 0.6s, 3s.
Generation Time
0.1s
Max: 10s, Typical: 8s.
0.6s
Max: 20s, Typical: 16s.
3s
Max: 130s, Typical: 100s.
Inputs
Sense (+/-)
Connector: 4 mm banana jack
Voltage: +3 V DC.
Trigger Input
Threshold 8 V DC.
DC IN
12 to 24 V DC, 2 A max.
Logger
Data
Label, Timestamp, I max, i min, I limit, Resistance, Meas. Time, P/F Limit.
Labelling Schemes
Circuit breaker oriented or running numbers.
Capacity
104 measurements.
Environmental Specifications
Application Field
For use in high voltage substations and industrial environments.
Operating Temperature
-20 to +50°C (-4 to +122°F).
Storage Temperature
-40 to +70°C (-40 to +158°F).
Relative Humidity (%RH)
5 to 95%, non-condensing.
Pollution Degree
2.
Shock
IEC 60068-2-27.
Vibration
IEC 60669-2-6.
Transport
ISTA 2A.
CE Marking
EMC - 2004/108/EC.
LVD - 2006/95/EC.
General Specs
Battery Power
Five AA (HR6) 2700 mAh NiMH cells.
Recharge Time
<12h.
Typical Recharge Time at 25°C
3h.
Battery Charger Mains Voltage
100 to 250 V AC, 50/60 Hz.
Battery Charger Power Consumption
60 W.
Battery Charger Protection
Against wrong battery type, low/high temperature.
Real Time Clock Battery Life
? 10 years.
Audible Feedback
Different buzzer sounds
User Presets
3.
Field Calibration
Encapsulation
IP54.
Dimensions (excluding binding posts)
217 x 104 x 72 mm (8.5 x 4.1 x 2.8 inches).
Weight
1.0 kg (2.2 lbs) instrument only
5.0 kg (11 lbs) with accessories and carrying case.
Megger MOM2 warranty
1 year.
For more information on Megger MOM2 with 5m Kelvin Clamps talk to Cuthbertson Laird Group
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