MK Test ExLRT XLR-9703-01 Intrinsically Safe Loop & Joint Resistance Tester/LRT

The MK Test ExLRT XLR-9703-01 is a state-of-the-art intrinsically safe loop and joint resistance tester designed to meet the stringent requirements of Class 1 Div 1 (Zone 0) applications. Certified for use in explosive environments, it adheres to the ISA Standard 60079-11, ensuring safe operation where explosive atmospheres are continuously present. Its rugged construction, rated IP54, protects against dust and water splashes, making it suitable for outdoor use across a wide temperature range from -10°C to +40°C (14°F to 104°F),

The ExLRT has been developed in collaboration with The Boeing Company’s Electro Magnetic Effects team as a modern replacement for traditional loop resistance testers (LRTs). This collaboration has ensured that the ExLRT not only meets but exceeds the performance of legacy LRT models. Its design emphasizes portability and user ergonomics, weighing just over 6 pounds (3 kg), which is significantly lighter than older models, thereby reducing health and safety risks associated with handling heavy equipment. The system also includes user-friendly features such as a large backlit screen, intuitive interface, and minimalistic control buttons, allowing for efficient operation even in challenging environments.

One of the key highlights of the MK Test XLR-9703-01 is its future-ready platform, which is designed to support additional capabilities through software updates. Planned enhancements include automatic test sequences, remote control via automated test equipment (ATE), and advanced data recording features. The tool is also equipped with integrated self-test capabilities and a simple calibration process that can be completed onsite in about 30 minutes, ensuring minimal downtime and maintaining high operational readiness. The XLR-9703-01 is therefore not only a robust solution for current testing needs but also a scalable platform for future advancements.

The MK Test Systems ExLRT Intrinsically Safe Loop & Joint Resistance Tester price makes it a very attractive option comparing to similar resistance/bonding meters available on the market. 

Features

• Certified Intrinsically Safe for Class 1 Div 1 (Zone 0) applications
• Approved by The Boeing Company as an alternative to legacy Loop Resistance Testers (LRT)
• Outdoor use rating of IP54 for dust and water splash protection
• Lightweight and portable design (6 lbs / 3 kg)
• Intuitive user interface with large backlit screen
• Integrated self-test capability and simple calibration process
• Software platform supporting future capability enhancements
• Bluetooth enabled (can be disabled via software configuration)
• USB port for direct connection to PC
• Active clamps and probes with LED indicators
• Wearable harness and belt clip options for hands-free operation

Benefits

• Safe to use in explosive environments continuously present with explosive atmospheres
• Minimizes health and safety risks with significantly reduced weight compared to legacy models
• Easy operation in various environments, including bright sunlight
• Quick and simple calibration process minimizes downtime
• Verified performance equivalent or superior to legacy LRT models by The Boeing Company
• Flexible and scalable platform for future testing needs
• Suitable for both factory floor and field applications
• 12-month comprehensive warranty with global repair and calibration services

Capabilities

• Loop and joint resistance testing
• Measures resistance across a range of 0.5mΩ to 4000mΩ with high accuracy
• Automatic and manual testing modes
• On-screen instructions for ease of use
• Pass/fail status indication on probes and clamps
• Future enhancements planned include automatic test sequences, ATE remote control, user-authored programs, and memory stack recording of data points
• Supports import and export of test requirements and automatic capture and upload of results

Specifications

• Operating Temperature Range: -10°C to +40°C (14°F to 104°F)
• Enclosure Rating: IP54 (dust and water splash protection)
• Battery: Replaceable with external charger, quick-change in safe zone
• Resistance Measurement Accuracy:
  • Range 1: ±(2% of reading + 0.4mΩ)
  • Range 2: ±(2% of reading + 0.4mΩ)
  • Range 3: ±(5% of reading + 0.4mΩ)
• Aircraft Compatibility: Certified for use in Division 1 Class 1 (Zone 0) fueled environments, suitable for use on fueled aircraft as per Boeing's requirements

BASIC INFORMATION

CHARACTERISTICS

* MK Test Systems EXLRT technical specifications is provided for reference only. Avionteq cannot ensure accuracy of the technical specifications presented herein. The technical data may not relate entirely to all model and versions of the EXLRT such as the models sold by Avionteq.