Product Details

Micro-ohmmeter MOM200A

Adiradh offers the Megger MOM200A Micro-Ohmmeter for low resistance and contact resistance testing. Moreover, the instrument delivers up to 200 A DC test current for electrical power equipment. Therefore, technicians can test circuit breakers, disconnecting switches, isolators, busbar joints, and other conductive connections. In addition, the MOM200A measures resistance from 0 to 1999 µΩ and from 0 to 19.99 mΩ. The lower range provides 1 µΩ resolution. Furthermore, the instrument supports 100 A DC for extended test periods and 200 A DC for short tests. As a result, users can select the test current according to the application. The MOM200A also uses separate current and sensing connections for low-resistance measurement. Moreover, its compact design supports field testing in substations and industrial sites. Therefore, the instrument provides a practical solution for checking electrical contact resistance. Finally, its 115/230 V AC supply supports standard mains operation at 50/60 Hz.

Overview

The Megger MOM200A is a 200 A DC micro-ohmmeter for very low resistance measurements. Moreover, it helps technicians check electrical contacts and conductive joints in power equipment. The instrument measures two resistance ranges: 0–1999 µΩ and 0–19.99 mΩ. Therefore, users can select a suitable range for different low-resistance tests. The lower range provides 1 µΩ resolution, while the higher range provides 10 µΩ resolution. In addition, the specified measurement inaccuracy is ±1% of reading plus 1 digit. The MOM200A can supply up to 200 A DC test current. Furthermore, its open-circuit voltage reaches 4.7 V DC. The instrument operates from a 115/230 V AC, 50/60 Hz mains supply. Consequently, technicians can use it for field testing in high-voltage substations and industrial environments. The instrument measures 280 × 178 × 246 mm and weighs approximately 14.6 kg. Moreover, its transport case measures 560 × 260 × 360 mm.

Datasheet for Micro-ohmmeter MOM200A

User manual for Micro-ohmmeter MOM200A

About Product

The Megger MOM200A uses high-current DC injection to measure very low electrical resistance. Moreover, technicians can use this method to check contact resistance in circuit breakers, disconnecting switches, isolators, and busbar joints. The instrument provides two resistance ranges: 0–1999 µΩ and 0–19.99 mΩ. Therefore, it supports detailed measurement of low-resistance electrical paths. The lower range provides 1 µΩ resolution, while the higher range provides 10 µΩ resolution. In addition, the MOM200A delivers a maximum DC test current of 200 A and an open-circuit voltage of 4.7 V DC. Its current shunt output provides 10 mV/100 A with ±0.5% accuracy. Furthermore, separate current and sensing connections support four-wire low-resistance measurement. As a result, technicians can assess electrical connections with a suitable test arrangement. The MOM200A also supports applications in high-voltage substations and industrial environments.

Technology & Benefits

The Megger MOM200A applies high-current DC testing to measure low resistance in electrical connections. Therefore, technicians can use it to check contact resistance in circuit breakers, disconnectors, isolators, and busbar joints. Moreover, the four-wire measurement method uses separate current and sensing cables. This arrangement helps the instrument measure the voltage across the test point while the test current flows through the connection. In addition, the MOM200A can deliver 100 A DC for extended tests. It can also deliver 200 A DC for short-duration tests. At 200 A, the specified maximum load time reaches 20 seconds, followed by a 5-minute rest period. Furthermore, the instrument measures resistance up to 19.99 mΩ. Therefore, users can test a range of low-resistance connections. The compact 280 × 178 × 246 mm body also supports field use. Moreover, the approximately 14.6 kg weight allows technicians to transport the instrument between test locations.

Key Features

• 200 A maximum DC test current
• 0–1999 µΩ and 0–19.99 mΩ resistance ranges
• 1 µΩ resolution on the lower range
• 10 µΩ resolution on the higher range
• ±1% of reading + 1 digit specified inaccuracy
• 100 A DC output for extended testing
• 200 A DC output for short-duration testing
• 4.7 V DC open-circuit voltage
• 10 mV/100 A current shunt output
• Separate current and sensing cable connections
• Four-wire low-resistance measurement
• 115/230 V AC, 50/60 Hz mains supply
• 280 × 178 × 246 mm instrument dimensions
• Approximately 14.6 kg instrument weight
• Transport case measuring 560 × 260 × 360 mm

Applications

• Circuit breaker contact resistance testing
• High-voltage circuit breaker testing
• Disconnecting switch testing
• Isolator contact resistance measurement
• Busbar joint resistance testing
• Electrical connection resistance testing
• Substation low-resistance testing
• Power equipment maintenance testing
• Industrial electrical connection testing
• Testing of conductive joints

Advantages

• Provides DC test current up to 200 A.
• Moreover, it measures resistance at micro-ohm levels.
• Provides 1 µΩ resolution on the lower measurement range.
• Furthermore, it supports 100 A DC for extended testing.
• Supports short-duration 200 A DC testing.
• In addition, separate current and sensing connections support four-wire measurement.
• Measures resistance up to 19.99 mΩ.
• Moreover, the compact design supports field testing.
• Supports testing in substations and industrial environments.
• Therefore, technicians can use the instrument for low-resistance contact testing.

Adiradh Energy offers Micro-ohmmeter MOM200A in India; Hyderabad; Visakhapatnam; Vijayawada; Chennai; Puducherry; Trichy; Coimbatore; Hosur; Bangalore; Hubli; Mysore; Cochin; Kolkata; Pune; Goa; Mumbai; Thane; Kanpur; Jaipur; Nagpur; Delhi; Noida; Gurugam; Bhopal; Vadodara; Ahmedabad; Chandigarh; Chandigarh; Tata Nagar; Raipur; Rudrapur; Durgapur; Kharagpur; Raigarh; Bhilai; Angul; Haldia; Jabalpur; Indore; Jamshedpur; Rajahmundry; Bokaro Steel City; Salem; Kochi; Rourkela; Ahmedabad ;Jamnagar; Bharuch; Sri City; Nashik; Haridwar; Mathura; Aurangabad; Bhubaneswar and other cities