Product Details

Micro-ohmmeter MOM690

Adiradh offers the Megger MOM690 Micro-ohmmeter for high-current low-resistance and contact resistance testing. Moreover, the instrument provides high-current AC and DC output for testing electrical power equipment. Therefore, technicians can measure resistance in circuit breakers, disconnectors, isolators, and other high-current conductive connections. The MOM690 measures resistance from 0 to 200 mΩ with 1 µΩ resolution. In addition, its current measurement range extends from 0 to 800 A with 1 A resolution. Furthermore, the instrument features microprocessor-based measurement, automatic range setting, test-result storage, and reporting functions. The MOM690 can also provide AC output, which can be used for CT demagnetisation after suitable circuit-breaker testing. Moreover, the instrument is designed for use in high-voltage substations and industrial environments. Its mains-powered design supports 115/230 V AC, 50/60 Hz operation. Therefore, the MOM690 provides a high-current solution for detailed low-resistance testing.

Overview

The Megger MOM690 is a high-current micro-ohmmeter designed for low-resistance measurements in electrical power equipment. Moreover, it combines high-current output with microprocessor-based measurement, automatic range settings, and test-result storage. The instrument measures resistance from 0 to 200 mΩ with 1 µΩ resolution. Therefore, users can perform detailed measurements of low-resistance electrical connections. Its ammeter range extends from 0 to 800 A with 1 A resolution. In addition, the MOM690 provides both AC and DC output. The DC output can reach high test currents, while the AC output can be used as a current source and for CT demagnetisation applications. Furthermore, test results can be captured automatically at a preset test current. The instrument operates from a 115/230 V AC, 50/60 Hz mains supply. Its dimensions are 350 × 270 × 220 mm, while the instrument weighs approximately 24 kg for the 115 V model and 23.7 kg for the 230 V model.

Datasheet for Micro-ohmmeter MOM690

User manual for Micro-ohmmeter MOM690

About Product

The Megger MOM690 uses high-current injection and microprocessor-based measurement technology to determine very low resistance in electrical connections. Moreover, its automatic range-setting function simplifies resistance measurement during testing. The instrument provides a resistance measurement range of 0–200 mΩ with 1 µΩ resolution. Therefore, technicians can evaluate contact and connection resistance in power equipment. The current measurement range is 0–800 A with 1 A resolution. In addition, the MOM690 can continuously measure resistance and automatically capture results at a preset test current. Its built-in software allows individual tests or series of tests to be performed and stored. Furthermore, the AC output can be used for CT demagnetisation after testing suitable circuit breakers with current transformers in their circuits. The MOM690 is intended for applications in high-voltage substations and industrial environments.

Technology & Benefits

The Megger MOM690 combines high-current AC/DC output with automatic resistance measurement and microprocessor-based test control. Therefore, technicians can perform controlled low-resistance testing on high-current electrical connections. Moreover, the instrument automatically selects suitable measurement ranges and continuously measures resistance during a test. Its resistance range extends to 200 mΩ with 1 µΩ resolution. In addition, the MOM690 can deliver different DC test currents depending on the connected load and cable configuration. For example, the 230 V model provides up to 600 A DC for a maximum load time of 5 seconds under specified conditions. Furthermore, the instrument provides AC output of up to 660 A for short-duration testing. The built-in software supports storage of individual or series test results. Moreover, the optional MOMWin software can be used to export test results to a PC for further analysis and reporting.

Key Features

• High-current micro-ohmmeter for low-resistance testing
• 0–800 A ammeter range
• 1 A current resolution
• 0–200 mΩ resistance measurement range
• 1 µΩ resistance resolution
• ±1% of reading + 1 digit specified inaccuracy from 100–800 A
• Automatic resistance range setting
• Continuous resistance measurement
• Microprocessor-based measurement and test control
• Built-in test-result storage
• Automatic capture of test results at preset test current
• AC and DC output
• AC output for CT demagnetisation applications
• Optional MOMWin software for PC-based result analysis and reporting
• 115/230 V AC, 50/60 Hz mains supply
• 350 × 270 × 220 mm instrument dimensions
• Approximately 24 kg for 115 V model
• Approximately 23.7 kg for 230 V model
• Designed for high-voltage substations and industrial environments

Applications

• Circuit breaker contact resistance testing
• High-voltage circuit breaker testing
• Disconnector contact resistance testing
• Isolator resistance testing
• High-current electrical connection testing
• Power equipment maintenance testing
• Substation low-resistance testing
• Industrial electrical connection testing
• CT demagnetisation after suitable circuit-breaker testing
• Low-resistance testing of high-current conductive paths

Advantages

• Provides high-current AC and DC testing capability.
• Moreover, it measures resistance down to micro-ohm resolution.
• Provides 1 µΩ resistance resolution across the specified measurement range.
• Furthermore, automatic range setting simplifies the measurement process.
• Supports individual tests as well as series of tests.
• In addition, test results can be stored within the instrument.
• Supports automatic result capture at a preset test current.
• Moreover, the AC output can support CT demagnetisation applications.
• Optional PC software supports further test-result analysis and reporting.
• Therefore, the MOM690 is suitable for low-resistance testing in substations and industrial environments.

Adiradh Energy offers Micro-ohmmeter MOM690 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