Sonel MMR-6700 Micro-Ohmmeter

The Sonel MMR-6700 Micro-Ohmmeter is a digital low-resistance meter with a maximum test current of 200A capable of measuring very low resistances of a variety of components.

Its stabilised, non-pulsing test current of up to 200A allows measurements to be carried out in difficult conditions. Moreover, a 200A measurement current combined with a high-power source means the Sonel MMR-6700 Micro-Ohmmeter can be used to measure HV switch contacts to a basic uncertainty of 0.25%.

Furthermore, the Sonel MMR-6700 Micro-Ohmmeter includes a unique module which enables it to measure the resistance of inductive components with currents up to 10A such as motor and transformer windings. Additionally, using test clamps the Sonel MMR-6700 Micro-Ohmmeter can measure the resistance of components that are earthed on both sides, as well as isolators, and high-, medium- and low-voltage breakers.

The Sonel MMR-6700 Micro-Ohmmeter’s 200A (max) test current, unique module, ability to accommodate test clamps and automatic temperature compensation makes it ideal for accurately measuring the resistances of the following components, objects and systems:

• Switch and contractor contacts
• HV breakers
• Fuses
• Screw joints
• Weld joints
• Equipotential bondings
• Contacts
• Cable connections
• Heating element connections
• Rail joints
• Conductors and cables
• Windings
• Low-resistance coils
• Solder joints
• Grounding conductors
• Home and industrial systems

In addition to measuring resistance, the Sonel MMR-6700 Micro-Ohmmeter is able to determine the temperature of windings. It can also be used with clamps to measure current leakage and features voltage drop indication as well as a Recording function.

The Sonel MMR-6700 Micro-Ohmmeter also includes a range of additional functions and measuring algorithms which aid the user with selecting the most appropriate test procedure for the object-under-investigation and/or the measurement conditions. Additionally, this low-resistance ohmmeter includes an integrated help system with instructive drawings designed to guide the user through the test procedures, as well as a state-of-the-art user interface.

Data and drawings are visible via the Sonel MMR-6700 Micro-Ohmmeter’s five-inch, coloured, touchscreen display with a resolution of 800 x 480px. Measurements can be saved to the Sonel MMR-6700 Micro-Ohmmeter’s large memory; the user is able to manage both resistance readings and asset IDs.

It is possible to transfer data to and from the Sonel MMR-6700 Micro-Ohmmeter using a Wi-Fi, USB or LAN interface. Via these interfaces, it is capable of communicating with computers, printers and 2D code readers.

Finally, this ergonomically designed low-resistance ohmmeter is protected against overheating and features battery charge monitoring. The Sonel MMR-6700 Micro-Ohmmeter is a high-performance, practical and precise resistance meter with a wide scope-for-use.

Sonel MMR-6700 Micro-Ohmmeter Key Features

• Digital low-resistance meter with a maximum test current of 200A
• Measure the very low resistances of a variety of components
• Stabilised, non-pulsing test current allows tests to be carried out in difficult conditions
• 200A measurement current combined with a high-power source means HV switch contacts can be measured to a basic uncertainty of 0.25%
• Unique module for measuring the resistance of inductive components with currents up to 10A
• Measure the resistance of motor and transformer windings
• Use test clamps to measure the resistance of components earthed on both sides, isolators and high-, medium- and low-voltage breakers
• Measure the temperature of windings
• Use with clamps to measure current leakage
• Voltage drop indication
• Recording function
• Automatic temperature compensation
• Additional functions and measuring algorithms for selecting the most appropriate test procedure
• Integrated help system with instructive drawings guide the user through measurement procedures
• State-of-the-art user interface
• Five-inch, coloured, touchscreen display
• Display resolution: 800 x 480px
• Large memory
• Manage results and asset IDs
• Supports Wi-Fi, USB and LAN interfaces
• Can communicate with computers, printers and 2D code readers
• Ergonomic
• Protected against overheating
• Battery charge monitoring
• High-performance, practical and precise resistance meter with a wide scope-for-use

What’s Included?

• Sonel MMR-6700 Micro-Ohmmeter
• 3m Current-Carrying Test Lead (Black I1, 200A, 25mm²)
• 3m Current-Carrying Test Lead (Black I2, 200A, 25mm²)
• ST-3 Temperature Probe
• USB Transmission Cable
• 3m Double-Wire Test Lead (10A/ 25A, U1/11)
• 3m Double-Wire Test Lead (10A/ 25A, U2/12)
• 2x Kelvin Clamp (1kV, 25A)
• Mains Cable with IEC C19 Plug
• 3m Test Lead (Blue, 1kV U1, Banana Plug)
• 3m Test Lead (Blue, 1kV U2, Banana Plug)
• 2x Crocodile Clip (Black, 1kV, 32A)
• L12 Case
• Calibration Certificate Issued by an Accredited Laboratory