Megger MJÖLNER200 micro-ohmmeter with DualGround safety

SKU: 4695814-1-519
In Stock

  • Output Current: 200 A DC
  • Safety Feature: DualGround™
  • Display: 5″ Touch Screen
  • Portability: Lightweight Suitcase Design

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Description

The Ultimate Precision in Resistance Measurement

The realm of electrical infrastructure demands unparalleled precision, especially when it comes to assessing the integrity of high-current components. The Megger MJÖLNER200 micro-ohmmeter stands as a testament to this demand, representing a pinnacle of modern testing equipment. Designed with meticulous attention to detail and an unwavering commitment to safety, ease of use, and versatility, the MJÖLNER200 redefines how contact resistance measurements are performed. This robust, portable, and highly accurate device is engineered to provide reliable data for critical assets such as circuit breaker contacts, bus-bar joints, and other high-current links, ensuring the longevity and optimal performance of electrical systems worldwide. Its comprehensive features make it an indispensable tool for engineers and technicians striving for excellence in their field.

Revolutionizing Safety with DualGround Technology

Safety is paramount in any electrical testing environment, and the MJÖLNER200 incorporates groundbreaking features to ensure maximum operator protection. At the forefront of these innovations is the DualGround™ safety feature. This revolutionary method allows the test object to remain grounded on both sides throughout the entire testing process. This not only significantly enhances safety by minimizing potential hazards but also streamlines the workflow, making the testing procedure faster and more efficient. The ability to conduct tests with this elevated level of safety transforms traditionally complex and potentially risky operations into secure and straightforward tasks, providing peace of mind to users in demanding industrial and substation environments. This commitment to user safety truly sets the MJÖLNER200 apart.

Unveiling Superior Performance and Versatility

The MJÖLNER200 is not just about safety; it’s also about delivering uncompromising performance. Boasting a formidable 200 A DC ripple-free current output, this micro-ohmmeter tackles the challenge of testing high-current devices with unparalleled accuracy. Unlike conventional meters that might yield incorrect results due to insufficient test current, the MJÖLNER200’s true DC output ensures precise measurements, even for components with very low resistance. This high-current capability is crucial for accurately assessing the health of circuit breakers, bus bars, and other critical links where even minor resistance anomalies can lead to significant power loss and dangerous temperature rises. The device’s ability to conduct tests with such a high degree of fidelity underscores its value in preventive maintenance and diagnostic applications.

Beyond the Lab: Field-Ready and Robust Design

Portability and durability are crucial factors for testing equipment used in diverse field conditions. The Megger MJÖLNER200 excels in this regard with its lightweight and rugged suitcase design. This thoughtful engineering makes it an ideal companion for on-site applications, allowing technicians to transport and deploy the unit with ease. The robust construction ensures that the device can withstand the harsh realities of various environments, including exposure to water, dust, and sand, without compromising its performance. Remarkably, the closed case even allows the unit to float, highlighting its exceptional resilience. This commitment to field readiness means that accurate and reliable measurements are accessible wherever they are needed, from remote substations to bustling industrial sites.

Seamless Control and Data Management Options

In today’s interconnected world, efficient data management and remote control capabilities are indispensable. The MJÖLNER200 seamlessly integrates these features, offering users a highly intuitive and flexible testing experience. With remote control available via a mobile app, operators can initiate and monitor tests from a safe distance, enhancing both convenience and safety. The device also includes a PC interface connection, supporting various measuring protocols such as Modbus RTU and Megger Win, allowing for comprehensive data analysis and reporting. An optional USB data logger and Bluetooth dongle further expand its data storage and communication capabilities, enabling easy export of results to platforms like Microsoft Excel for in-depth analysis. This suite of connectivity options ensures that test data is not just collected but effectively managed and utilized for informed decision-making.

Specific Applications for Optimal System Health

The Megger MJÖLNER200 micro-ohmmeter is a versatile tool with a wide array of specific applications, critical for maintaining the health and efficiency of electrical systems. Its primary function is to perform contact resistance measurements on low-, medium-, and high-voltage breakers. These measurements are vital for ensuring that circuit breaker contacts maintain optimal performance, preventing power loss and dangerous overheating. The MJÖLNER200 is also adept at testing bus-bar joints, where high current flows make low resistance paramount, and other high-current links within an electrical network. Adhering to international standards such as IEEE C37.09-2018 and IEC 62271-1:2017, the MJÖLNER200 helps identify potential points of failure, enabling proactive maintenance and preventing costly outages. Regular resistance checks, facilitated by this precise instrument, are key to avoiding serious trouble often associated with elevated contact resistance, which leads to excessive temperature rise and premature equipment failure.

Unmatched Support: tpt24’s Global Reach

When investing in a high-precision instrument like the Megger MJÖLNER200, the source of purchase and the accompanying support are as crucial as the product itself. This is where tpt24 emerges as the world’s leading online store for this exceptional micro-ohmmeter. tpt24 is committed to delivering not only the product but also the assurance of authenticity and quality. No matter where you are located globally, tpt24 guarantees that your MJÖLNER200 will be delivered with a full warranty of originality and superior performance. Their dedication to customer satisfaction, coupled with their extensive reach, ensures that professionals across all continents can access this cutting-edge testing solution with complete confidence, backed by reliable service and genuine products.

Comprehensive Features for Peak Performance

The MJÖLNER200 micro-ohmmeter is engineered with a suite of features that together provide a comprehensive and highly effective testing solution. These include fully automatic microprocessor-controlled testing, which streamlines the operation and minimizes human error. The inclusion of a built-in thermal printer allows for immediate on-site documentation of test results, a significant convenience for field technicians. Furthermore, the intuitive 5-inch touch screen display simplifies navigation and data input, enhancing user experience. The various optional accessories, such as a remote control, temperature probe for compensation, and the MJÖLNER Win PC software, further extend the instrument’s capabilities, making it adaptable to a wide range of testing scenarios and data analysis needs. This holistic approach to design ensures the MJÖLNER200 remains a top-tier choice for accurate and efficient resistance measurement.

Specifications

 

Feature Specification Details
Max Output Current 200 A (DC) Ripple free DC output
Output Type Ripple free DC Avoids incorrect test results
Power Source Mains 100-120 / 200-240 AC, 50/60 Hz
Safety Features DualGround™ Test object grounded on both sides throughout test
Testing Control Fully automatic, micro-processor controlled Safe test with remote control from mobile app
Display 5” IPS touch screen Resolution: 800×480
PC Interface USB comport or RS232 Remote Various measuring protocols (Modbus RTU, Mjölner Win, data output, control)
Data Storage Optional USB data logger Stores data in .csv format, viewable with Excel
Communication Optional Bluetooth dongle Wireless connectivity
Case Design Lightweight suitcase Withstands impact of water, dust, or sand; floats when closed (IP63)
Weight 7.3 kg (16.1 lbs) 15.3 kg (33.6 lbs) incl. cables and soft case
Dimensions (L x W x H) 410 x 330 x 175 mm (16.1” x 13” x 6.9”)
Operating Temp. -20 °C to +50 °C (-4 °F to +122 °F)
Storage Temp. -40 °C to +70 °C (-40 °F to +158 °F)
Humidity 5 % – 95 % RH, non-condensing
Measurement Range 0 – 999.9 mΩ
Measurement Resolution 0.01 μΩ (below 100 μΩ) to 100 μΩ (below 1000 mΩ) Varies by range
Max. Output Voltage 5.0 V at 205 A
Max. Ripple 80 mVpp, 28.3 mVrms (at 0 – 50 °C)
Continuous Load Capacity 200 A (at 25 °C ambient temperature) Current derates if internal temp reaches 50 °C
Shunt Output 300 μV/A (60 mV at 200 A) Inaccuracy: ±1%
SENSE Input Max. 20 V between terminals and to protective earth
DC Current Clamp Input Max. 20 V between terminals and to protective earth Input voltage Max ±1 V, sensitivity 0.1 – 20 mV/A, impedance >1 MΩ
Built-in Features Thermal printer

Data Sheet

Download Data Sheet Of Megger MJÖLNER200 micro-ohmmeter with DualGround safety