Sonel MMR-650 MICRO-OHM Resistance and Low Resistance Meter

Resistance Measurement:

• Measurement Ranges:
• 0…999.9 μΩ
• 1.0000…1.9999 mΩ
• 2.000…19.999 mΩ
• 20.00…199.99 mΩ
• 200.0…999.9 mΩ
• 1.0000…1.9999 Ω
• 2.000…19.999 Ω
• 20.00…199.99 Ω
• 200.0…1999.9 Ω
• Resolution:
• Varies from 0.1 μΩ to 0.1 Ω depending on the range
• Test Current:
• 10 A, 1 A, 0.1 A, 10 mA, 1 mA depending on the range
• Accuracy:
• ±(0.2% of measured value + 2 digits)

Other Technical Specifications:

• Insulation Type:
• Double insulation according to EN 61010-1
• Measurement Category:
• III 600 V according to EN 61010-2-030:2011
• Ingress Protection:
• IP67 with closed housing
• IP54 with open housing, powered from the battery pack, installed plugs
• IP40 with open housing, powered from mains and/or without plugs
• Protection Against External Voltage:
• Up to 600 V AC for 10 s
• Power Supply:
• 90 V…265 V/50 Hz…60 Hz, 2 A
• Battery Charging Time:
• Approximately 3.5 hours
• Number of Measurements (Resistive Objects):
• 700…800 depending on ambient temperature
• Maximum Wire Resistance for 10 A Current:
• 300 mΩ
• Accuracy of Measuring Current Setting:
• ± 10%
• Time for Resistance Measurement:
• With selected resistive object type and bidirectional current flow: 3 s
• With selected inductive object type, dependent on resistance and inductance: 5 s or more
• Operating Temperature:
• -10°C…+50°C / 14°F…122°F (instrument)
• 0°C…+45°C / 32°F…113°F (charger)
• Storage Temperature:
• -20°C…+60°C / -4°F…+140°F
• Humidity:
• 20%…90%
• Reference Temperature:
• +23°C ± 2°C / 73.4°F ± 3.6°F
• Reference Humidity:
• 40%…60%
• Temperature Coefficient:
• ±0.01% of displayed value/°C ± 0.1 digit/°C
• Time to AUTO-OFF:
• 5…45 minutes or option not active, depending on setting
• Display:
• TFT graphic display, 800 x 480 pixels
• Interfaces:
• USB, LAN, Wi-Fi
• Quality Standard:
• ISO 9001 compliant for design and manufacturing
• EMC Compliance:
• Meets requirements according to PN-EN 61326-1 and PN-EN 61326-2-2
• FCC Rules Compliance:
• Class A digital device