Sonel MMR-650

10A Micro-ohmmeter

DAILY RATES
Cost per Day	$85.00	$76.00	$62.00	$53.00
Duration (days)	1-7	8-14	15-29	30

TYPICAL HIRE PERIODS
Cost	$595.00	$1,064.00	$1,798.00	$1,590.00
Duration	7 Days	14 Days	29 Days	30 Days

Committing to 3, 6 or 12 months?
Contact us on 1300 623 605 for fantastic long term hire rates.

DESCRIPTION

The Sonel MMR-650 Low Resistance Meter is designed to measure very low resistances of both resistive and inductive
types
of objects, including amorphous core transformers. This product is engineered for use in power plants, railways and
maintenance companies to measure welded and soldered connections, equipotential bondings, earthing conductors,
contacts,
bolted connections, windings of motors and power transformers and other resistive and inductive objects.

The MMR-650 can also be utilised on production lines (e.g. at the final production control stage). It’s an
innovative
combination of a high-performance measuring device with a modern user interface and an advanced data management
system.
Wireless data transmission, an enhanced system of 2D codes and the ability to print labels to identify test items
all
contribute to a new quality of work and allow the user to perform a wide range of measurements.

FEATURES

Li-Ion battery power recharges in 3.5 hours
It can be operated with mains power
Over 700 10 Amp tests between charges
Measurements from 0.1µΩ to 2,000Ω
Class-leading 0.25% accuracy
Built-in back EMF discharge and demagnetisation of windings
Temperature compensation & heat run analysis with included temperature probe
No switches! The MMR-650 is fully controlled from the full-colour touch screen, just like your smartphone or
tablet
Supplied with both Kelvin Clips and Kelvin Spike Probes

SPECIFICATIONS

Measurement

Ranges: 1000µΩ, 2, 20, 200, 1000mΩ, 2, 20, 200, 2000Ω
Resolution: 0.1µΩ to 0.1Ω
Accuracy: ±0.25% reading +2 digits
Measurement time – resistive: 3s
Measurement time – inductive: 5s or greater
Protection from external voltage: 600V AC for 10s
Communication: USB, WiFi & optional LAN
Memory: 990 measurements in 10 banks of 99

Power Supply

Battery: 7.2V, 8.8Ah Li-Ion
AC Supply/charger: 90-265V, 50Hz
Battery charging time: 3.5 hours
Number of 10A tests per charge: 700-800
Auto Off: User-definable from 5 to 45 minutes or continuous

General

Measurement Category: Cat 3, 600V to IEC 61010
User interface: 800 x 400 Colour TFT graphical display
Protection grade: IP67 lid closed, IP54 lid open, IP40 lid open and mains-powered
Working temperature: -10 to +50°C
Relative humidity: 40 – 60%

Applications

Power plants — In power plants, the MMR-650 is indispensable for ensuring the efficient operation and safety of
electrical systems. It precisely measures low resistances in transformers and conductors, aiding in effective
energy
distribution and the maintenance of system reliability.
Railway systems — This meter is vital in maintaining safe and efficient operations in railway infrastructures by
accurately assessing the resistance of rail bonds and electrical connections. This precise measurement is vital
for the
smooth functioning of railway electrical systems, ensuring safety and operational efficiency in the rail network.
Industrial maintenance — The MMR-650 is crucial for routine checks and troubleshooting in industrial facilities
because
it helps evaluate the integrity of connections and earth bonds. This helps in preventing equipment failure,
ensuring
operational safety and maintaining continuous production.
Quality control in manufacturing — In the manufacturing sector, especially in final-stage quality control, the
MMR-650
verifies if products meet electrical standards. Its precise resistance measurements can confirm product quality,
enhancing overall manufacturing excellence and ensuring the reliability of electrical components before they reach
the
market.
Electrical system installations — The meter is essential for gauging the integrity of new electrical
installations,
including earthing systems and bonding connections. It can help a professional certify if these installations meet
safety standards and function optimally.