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Low Resistance Ohmmeters

pdf-iconA Guide to Low Resistance Testing

Megger has been manufacturing low resistance ohm meters for many years. In fact the first Low resistance ohmmeter was launched in 1908. The first low resistance ohm meter, launched under the DUCTER trade mark was developed by Evershed and Vignoles (one of the companies that evolved into Megger) and used a cross-coils meter movement. Today, Megger has a comprehensive range of Digital Low Resistance Ohmmeters, under the DLRO trade mark, providing accurate and reliable measurements with test currents ranging from a few µA to 600 A suitable for many applications.

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Megger MOM2

Megger MOM2
  • Up to 220 A
  • Battery powered
  • Light weighs only 1 kg
  • Safe test – DualGround™
  • Auto range: 1 μΩ to 1000 mΩ
  • Bluetooth® PC communication
  • Complies with IEEE and IEC standards

Product details...

Megger DLRO10X

Megger DLRO10X
  • Accurate results in under three seconds
  • Auto current reversal cancels standing emfs
  • Fuse protected to 600 V
  • NiMH battery reduces weight
  • 250 mW power limit (with optional override) to avoid heating the test sample
  • Automatically detects continuity in potential and current connections
  • Visible warning of high voltages present at the terminals
  • Visible warning of current flowing in the test sample
  • Multiple operating modes including fully automatic
  • Alpha-numeric keypad for entering test notes
  • User settable high and low limits
  • Autoranging with Manual option
  • Printer output and memory

Product details...

Megger DLRO10HD

Megger DLRO10HD
  • High or low output power selection for condition diagnosis
  • Rechargeable battery or line power supply, continuous operation, even with dead battery
  • 10 A for 60 seconds, less time waiting to cool, great for charging inductance
  • High input protection to 600 V, inadvertent connection to line or UPS voltage will not blow a fuse
  • Heavy duty case: IP 65 lid closed, IP54 operational (battery operation only)

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Megger DLRO100 Series

Megger DLRO100 Series
  • CAT IV 600 V for safe operation
  • Light, 100 A, battery powered unit for portability
  • High noise immunity for stable readings
  • Smooth DC output for circuit breaker testing
  • IP54 for protection against dust and moisture whilst testing
  • Save, download and delete results
  • Remote operation, Bluetooth® and asset and result tagging

Product details...

Megger DLRO200

Megger DLRO200
  • Small and weighs less than 15kg
  • Test currents from 10 A to 200 A d.c.
  • 0.1 µΩ best resolution
  • On board memory for up to 300 test results and notes
  • RS232 port to download stored results or for real time output to a printer
  • Supplied complete with 5m test leads and download software

Product details...

Megger DLRO600

Megger DLRO600
  • Small and weighs less than 33 lbs (15 kg)
  • Test currents from 10 A to 600 A dc
  • 0.1 µohms best resolution
  • On board memory for up to 300 test results and notes
  • RS232 port to download stored results or for real time output to a printer
  • Supplied complete with 16.4 ft. (5 m) test leads and download software

Product details...

Programma MOM200A

Programma MOM200A
  • Designed for use in electrically noisy environments
  • Measures contact resistance in circuit breakers, disconnecting switches, busbar connections, safety devices, etc.
  • Easy to operate
  • Designed for rugged field use
  • Highly flexible cable connections
  • Portable and lightweight, weighs only 14 kg (31 lbs)

Product details...

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