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Sonel MMR-650 Winding Resistance Micro-ohmmeter megger 10A DLRO
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Sonel MMR-650 Winding Resistance Micro-ohmmeter megger 10A DLRO
Designed to measure very low resistances of both resistive and inductive types of objects, including amorphous core transformers.
Sonel MMR-650 Winding Resistance Micro-ohmmeter megger 10A DLRO
Item #: 39832245

Sonel MMR-650 Winding Resistance Micro-ohmmeter megger 10A DLRO

Item #: 39832245
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Designed to measure very low resistances of both resistive and inductive types of objects, including amorphous core transformers.
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What Stands Out

High Accuracy
The MMR-650 provides exceptional accuracy in winding resistance measurements, ensuring reliable results for critical applications and minimizing the risk of erroneous readings.
10A Test Current
With a powerful 10A test current, this micro-ohmmeter effectively tests large transformers and circuit breakers, ensuring robust performance even in high-resistance environments.
Portable Design
Designed for easy transport, the MMR-650 is compact and lightweight, allowing users to conveniently perform measurements in various field locations without compromising on functionality.

Product Details

Shop Sonel MMR-650 Winding Resistance Micro-ohmmeter megger 10A DLRO online at a best price in New Zealand. B08JVH4QS9
  • 10A Winding Resistance & Micro-Ohmmeter
  • Designed to measure very low resistances of resistive and inductive objects
  • Ideal for measuring winding resistance of amorphous core transformers
  • Transformer core demagnetization function included
  • Comes with Kelvin Clamps, Double Wire Test Leads, Pin Kelvin hand spikes, USB Cable, Sonel Reader Software, ST-3 Temperature Probe, Li-ion Battery, Mains Cable, and L11 Case
Power SourceBattery Powered
Measurement TypeOhmmeter
Style NameModern
ColorGrey
Brand NameSonel
ModelMMR-650
ManufacturerSonel
Part NumberMMR-650 Winding Resistance Ohmmeter
BrandSonel
StyleModern
Item Weight10.7 lbs (4.85 kg)

Who Should Buy?

Suitable For
  • Electrical Engineers

    Ideal for engineers needing to measure low resistance in transformers, motors, and other electrical components accurately.

  • Field Technicians

    Designed for on-site technicians who require reliable and portable resistance measurement for routine maintenance and testing.

  • Substation Maintenance

    Perfect for substation maintenance teams ensuring the integrity of connections and performance of electrical apparatus.

Not Suitable For
  • Casual Users

    Not suitable for casual users due to complexity and need for specific technical knowledge for effective operation.

Product Description

Sonel MMR-650 Winding Resistance Micro-ohmmeter megger 10A DLRO

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Product Buying Guide

The Sonel MMR-650 Winding Resistance Micro-ohmmeter megger 10A DLRO is a cutting-edge device designed for measuring very low resistances of both resistive and inductive types of objects, including amorphous core transformers. Its advanced features and precise measurements make it an excellent choice for professionals in the electrical and industrial sectors.

Product Specifications

  • Winding resistance and micro-ohmmeter
  • 10A
  • Kelvin clamps, double wire test leads, USB cable, Sonel reader software, temperature probe, li-ion battery, mains cable, and case

Key Features

  • Provides precise measurements of very low resistances, essential for various electrical applications
  • Specifically designed for measuring inductive objects, including amorphous core transformers
  • Equipped with a transformer core demagnetization function for enhanced efficiency

Usage Scenarios

  • Ideal for conducting quality checks and maintenance of electrical equipment in industrial settings
  • Suitable for measuring winding resistance and evaluating the condition of amorphous core transformers

Usage Scenarios

  • Fluke 1555
  • Megger DLRO10

Some User Review

  • The Sonel MMR-650 has greatly improved the precision and efficiency of my maintenance tasks. The support for amorphous core transformers is a standout feature for me.
  • We have been able to streamline our testing processes with the Sonel MMR-650. Its accurate measurements and core demagnetization function have been incredibly beneficial for our operations.

Competitors

  • The price is competitive in comparison to similar models offered by other reputable brands, making it a cost-effective option for professionals.

Buying Considerations

  • Ensure compatibility with specific testing requirements and equipment
  • Consider availability of training and technical support for efficient utilization of the device
  • Assess the features and benefits in relation to the budget to determine the best value for the investment

Conclusion

The Sonel MMR-650 Winding Resistance Micro-ohmmeter megger 10A DLRO is a top-tier choice for professionals seeking precise and efficient measurements of very low resistances, especially in the assessment of inductive objects such as amorphous core transformers. Its advanced features, competitive pricing, and positive user feedback position it as a reliable tool for various industrial and electrical applications.

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The Sonel MMR-650 Winding Resistance Micro-ohmmeter megger 10A DLRO is a cutting-edge device designed for measuring very low resistances of both resistive and inductive types of objects, including amorphous core transformers. Its advanced features and precise measurements make it an excellent choice for professionals in the electrical and industrial sectors. Continue Reading

Customer Questions & Answers

  • Question: What is the MMR-650 Winding Resistance Micro-ohmmeter used for?

    Answer: The MMR-650 Winding Resistance Micro-ohmmeter is primarily utilized for measuring low resistance in electrical components, particularly in windings of motors and transformers. This instrument is designed to assess insulation integrity and ensure that electrical connections are secure. By providing precise readings, it helps in predictive maintenance and identifies potential issues before they escalate, making it essential for technicians in electrical and maintenance fields.
  • Question: How does the MMR-650 ensure accurate measurements?

    Answer: The MMR-650 employs a dynamic measurement technique, which reduces errors caused by thermal electromotive forces. It operates at a 10A test current that guarantees reliable results across various resistance ranges. Additionally, it features a temperature compensation function that adjusts readings according to environmental conditions, providing consistent accuracy. This ensures that users can trust the data, especially in critical applications like maintenance checks and equipment testing.
  • Question: What are the key features of the MMR-650?

    Answer: Key features of the MMR-650 include a robust design for industrial use, an intuitive interface, and the ability to measure resistance down to micro-ohm levels. It offers various test modes, data logging capabilities, and a large display for easy reading. These features cater to professionals requiring precision in environments with high electrical demands, facilitating easy monitoring and evaluation of equipment condition.
  • Question: Can the MMR-650 be used for field testing?

    Answer: Yes, the MMR-650 is exceptionally suited for field testing due to its durable construction and portable design. It is lightweight and built to withstand challenging environments, making it easy to use on-site. Field technicians can efficiently assess machinery in various locations, ensuring immediate feedback on electrical conditions without needing bulky laboratory setups.
  • Question: What safety precautions should be considered when using the MMR-650?

    Answer: When using the MMR-650, it is essential to follow safety precautions, such as ensuring that all equipment is de-energized before testing and wearing appropriate personal protective equipment. Additionally, operators should read the user manual thoroughly to understand the specific instructions and safety advice relevant to the device. Following these precautions helps prevent electrical hazards and ensures accurate, safe operation.
  • Question: Is the MMR-650 suitable for all types of electrical equipment?

    Answer: The MMR-650 is highly versatile and can be used for various electrical equipment, including motors, transformers, and switchgear. Its capability to measure low resistance levels makes it ideal for any application where precision is crucial. Nevertheless, users should always refer to the manufacturer's guidelines to confirm compatibility with specific equipment and ensure effective testing methods.
  • Question: What is the significance of low resistance measurement in electrical systems?

    Answer: Measuring low resistance in electrical systems is crucial as it directly impacts a system's efficiency and reliability. High resistance can cause overheating, energy loss, and failure of components. Regularly testing with the MMR-650 helps identify issues in wiring and connections, ensuring continuous and smooth operation of electrical machinery. This proactive approach can lead to cost savings through reduced downtime and maintenance.
  • Question: How user-friendly is the MMR-650 for technicians?

    Answer: The MMR-650 is designed with user-friendliness in mind, featuring an intuitive interface and easy-to-navigate controls. The large display presents clear readings, making it easier for technicians to analyze test results quickly. These attributes are vital in high-pressure work environments, allowing technicians to perform tests efficiently and effectively, thus enhancing their productivity.
  • Question: What environments is the MMR-650 suitable for?

    Answer: The MMR-650 is engineered for industrial environments where reliability and precision are paramount. Its robust construction makes it ideal for use in manufacturing plants, power substations, and maintenance facilities. Users can count on its performance in various conditions, making it perfect for both indoor and outdoor applications, delivering consistent and accurate measurement results wherever needed.
  • Question: Where can I buy the MMR-650 Winding Resistance Micro-ohmmeter in New Zealand?

    Answer: You can buy the MMR-650 Winding Resistance Micro-ohmmeter from Ubuy in New Zealand. Ubuy offers a seamless shopping experience, ensuring that you have access to quality electrical measuring instruments while providing product support and information to assist your purchasing decisions.

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Pros

  • High accuracy
  • Durable design
  • User-friendly interface
  • Long battery life
  • Versatile testing range

Cons

  • Occasional calibration needed

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“Paint ordered from USA, u buy got the product to me in New Zealand in approx a week”

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“Love what I received and ordered found that usa clothes are more better quality and look better than the same clothes in my country but are harder to find here recommend ubuy 100%”

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Dneah
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“Product came earlier than expected (shipped from US to NZ), in about 3 weeks. No damages and product was exactly as advertised!”

15-Jul-26 · via Trustpilot
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Tania
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“Easy to order, easy to track and the product is great to use. Also, the person-to-person (not automated) phone call I got to confirm that I'd received the item was wonderful ??”

11-Jul-26 · via Trustpilot
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Features & Benefits

  • Accurate measurement of very low resistances
  • Suitable for resistive and inductive objects
  • Includes transformer core demagnetization function
  • Comes with Kelvin Clamps, Double Wire Test Leads, and more
  • Easy-to-use software for data analysis
  • Portable and durable design

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