Model: MOM-100A Micro Ohmmeter for HV Switch Circuit Breaker Contact Resistance Testing
I.Overview
Contact Resistance Meter 100A Portable loop resistance tester (micro Ohmmeter) is based on IEC Standard to design for high accurate and digital switches testing.
The instrument adopts high frequency superpower constant current switch power source technology, can test micro ohm contact resistance. Wildly use in varies switch and electric appliance contact resistance test loop resistance test cable wires test weld contact resistance test.
The machine has high accuracy and great stability, which can meet the requirement of electric power supplier department for high voltage switch maintaining and loop resistance tester.
II.Performance characteristics
- The machine can be controlled by the phone using special software so that the test result can save the phone and queried.
- The machine has multiple Protection function such as over hot of power protection disconnection protection and outage protection during the test.
- Intelligent power management technology, save energy to avoid the machine become hot
- High output voltage and wide measurement range
- Quickly test, The test current is from high accuracy constant current,which don't need to regulate manually.
- The four-terminal wiring method is used to effectively eliminate the influence of the resistance of the test line on the test results.
- 7 inch color touch screen, English version
- The instrument comes with a perpetual calendar clock and power-off storage, which can store 1000 sets of test data, which can be consulted at any time
- The instrument has Bluetooth communication, RS232 communication and USB interface for computer communication and U disk data storage.
- Micro printer to print the result
III.Technical Specification
Test Current | 50A, 100A |
Measuring Range | 0~100mΩ(50A) 0~50mΩ(100A) |
Resolution | 0.1µΩ |
Accuracy | ±(0.5%±2 digits) |
Power Consumption | 1000W |
Test method | Constant test |
Power Supply | 100-240V AC, 50/60Hz |
Operating temperature | 0~40ºC |
Relative Humidity | 0-90%, non-condensing |
Length of Test Wire | Standard 10m, (Customized length) |
Dimensions | Host: 360*290*170mm, Accessory Case: 360*290*170mm |
Weight | 15KG (Instrument+accessories case) |

- Power switch: Press"I"to turn on the tester, press "O"to turn off the tester
- AC220V: AC220V power supply
- I+, I- : Output current terminal,which provides the constant current for the tested object.
- V+,V- : To provide the input voltage terminal of the tested object
- LCD:320*240 Color LCD screen
- RS232: Serial port output terminal
- : Ground terminal
- USB: USB port for U-disk
- Printer:Built-in microprinter


Lucyelec Test Equipment Co., Ltd. engaged in oil Analysis and electrical test equipment since 2015, is your reliable partner and professional provider of test and measurement instruments in Baoding China.
Main Products:
1. Oil Test kits (BDV, Tan Delta, Flash Point, Water content, Interfacial Tension, Gas Chromatography, Kinematic Viscosity… etc)
2. Transformer testers /CT PT analyzer (TTR, Winding resistance, Winding deformation, Capacitance and tan delta test, Partial dicharge, etc)
3. SF6 Gas Analyzers (Dew point, Purity, Compensation, etc)
4. Switch/Circuit breaker analyzers (Contact resistance, Mechanical characteristics)
5. MOA/Insulator test devices
6. HV Hipot Testers (AC/DC/VLF)
7. Insulation/Earth resistance test
8. Secondary Injection Relay Test Sets
9. Cable fault location system
10. DC System/Battery Testers
11. Electric safety tools and test equipments
Lucyelec Test Equipment Customer Case
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