ohmmeter
ohmmeter

Micro Ohmmeter MMR-640

multi-function meter Multi-function Meter MPI-540
micro ohmmeter MICRO OHMMETER MMR-650

$2,723.19

MICRO OHMMETER

MODEL: MMR-640

MANUFACTURER: SONEL

MMR-640 Micro Ohmmeter features:

  • Unique casing ( IP67 with the lid closed, IP54 with the lid open)
  • measurement of very low resistance
  • high immunity to disturbances
  • easy operation
  • big touchscreen, 800 x 480 pixel
  • automatic measurement mode
  • auto-ranging

 

SKU: AME-71914-1
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Description

SONEL MMR-640 MICRO OHMMETER

The MMR-640 Micro Ohmmeter is designed to measure very low resistance of resistive objects. This micro ohmmeter is made to be used in power plants, railways and maintenance companies to measure resistance of:
• breakers, contacts,
• earthing conductors, equipotential bondings,
• welded and soldered connections,
• bolted connections,
• and other resistive objects.

MMR-640 micro ohmmeter can be also utilized on production lines (e.g at the final production control stage).

The MMR-640 ohmmeter provides an innovative combination of a high-performance measuring device with a modern user interface and advanced data management system.

In response to the customers needs the MMR-640 micro ohmmeter has been designed to operate in difficult environmental conditions. A unique casing with the IP67 ingress protection rating ensures that the micro ohmmeter is both waterproof and dust proof.

The MMR-640 micro ohmmeter is equipped with a readable colour touchscreen that, due to its 800 x 480 pixel resolution, provides both high comfort of interacting with the interface and high readability of the measurement results.

FEATURES OF MMR-640 Micro Ohmmeter:

  • Unique casing   (IP67 with the lid closed, IP54 with the lid open)
  • measurement of very low resistance
  • high immunity to disturbances
  • easy operation
  • big touchscreen, 800 x 480 pixel
  • automatic measurement mode
  • auto-ranging

 

TECHNICAL INFORMATION for MMR-640 Micro Ohmmeter

>Measurement of resistance

Range Resolution Measurement current Accuracy
0…999.9 μΩ 0.1 μΩ 10 A ±(0.25% w.m. + 2 digts)
1.0000…1.9999 mΩ 0.0001 mΩ
2.000…19.999 mΩ 0.001 mΩ
20.00…199.99 mΩ 0.01 mΩ 10 A / 1 A
200.0…999.9 mΩ 0,1 mΩ 1 A / 0.1 A
1.0000…1.9999 Ω 0.0001 Ω
2.000…19.999 Ω 0.001 Ω 0.1 A
20.00…199.99 Ω 0.01 Ω 10 mA
200.0…1999.9 Ω 0.1 Ω 1 mA

 

insulation type according to EN 61010-1 double
insulation type according to EN 61010-1 III 600 V
ingress protection according to EN 60529 with closed housing IP67
with open housing, powered from the battery pack, installed plugs IP54
with open housing, powered from mains and/or without plugs P40
protection against external voltage up to 600 V AC for 10 s
power supply to battery charger 90 V…265 V
50 Hz…60 Hz
2 A
battery charging time approximately 3.5 hours
number of measurements (of resistive objects) with
10 A current performed when powered from the
battery pack		 700…800 depending on the ambient temperature
maximum wire resistance for 10 A current 300 mΩ
time of performing the resistance measurement with selected resistive object type and
bidirectional current flow		 3s
with selected inductive object type, dependent on the resistance and inductance of the object 5 s or more
dimensions 318 x 257 x 152 mm
meter weight approx. 3.5 kg
operating temperature -10°C…+50°C
charger operating temperature 0°C…+45°C
storage temperature -20°C…+60°C
humidity 20%…90%
reference temperature +23°C ± 2°C
reference humidity 40%…60%
altitude (above sea level) <2000 m
temperature coefficient ±0.01% of d.v./°C ± 0.1 digit/°C
time to AUTO-OFF 5…45 minutes or option not active, depending on the setting
TFT graphic display 800 x 480 pixels
interface standard USB
quality standard design and manufacturing are ISO 9001 compliant

 

MICRO OHMMETER

STANDARD ACCESSORIES FOR MMR-640 MICRO OHMMETER

  • Kelvin crocodile (2 pcs)
  • 3m doublewire test lead U1/I1 and U2/I2
  • L-11 carrying case
  • Li-Ion rechargeable battery 7.2 V
  • Mains cable -IEC C13 plug
  • Calibration certificate
  • USB cable
  • Sonel Reader PC software

The MMR-640 Micro ohmmeter meets the EMC requirements (emission for industrial environment) according to EN 61326-1 and EN 61326-2-2 in compliance with FCC Rules Class A digital device.

Additional information

Weight 3.5 kg

Declaration of conformity for MMR-640 Micro Ohmmeter

datasheet_MMR-640 MICRO OHMMETER

USER MANUAL MMR-640 MICRO OHMMETER

Vendor Information

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