SONEL MMR-650 Low Resistance Meter

Designed to measure very low resistances of both resistive and inductive types of objects, including amorphous core transformers.

This product is made to be used 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.

MMR-650 can be also utilized on a production lines (eg. at the final production control stage). An innovative combination of a high-performance measuring device with a modern user interface and advanced data management system.

Wireless data transmission, enhanced system of 2D codes and ability to print labels to identify test items, all contribute to bringing 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
• 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 de-magnetisation 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 smart phone 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%