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Rhopoint M210 Milliohm Meter

Manufactured by Rhopoint Instruments Ltd in the UK, the M210 Milliohm Meter is a portable, low resistance digital meter designed to measure over the range 0.001Ω to 200Ω. A high degree of accuracy is achieved by utilising a four-terminal input to eliminate errors caused by test lead length. One of the most important features of the milliohm meter is its low (0.005A) test current. This ensures the contact being tested is not 'cleaned' by the test current which can happen when higher test currents are used. This 'cleaning' of the contact under test leads to erroneous measurements.

  • ±0.1% range accuracy
  • Only 5mA test current
  • Single push button operation
  • Auto ranging (1.999Ω, 19.99Ω and 199.9Ω)
  • Measurement increments of 0.001Ω, 0.01Ω and 0.1Ω
  • Auto switch-off after 3 minutes
  • 20 hours continuous operation (from standard PP3 battery)
  • Supplied with a set of standard test leads with spring clip connectors (Part No. M210/9A)
  • Is fully calibrated and supplied with UKAS calibration certificate

Typical applications where resistance measurements are required include:

  • Relay, switch and connector contacts
  • PCB (plated through-holes)
  • PCB (track resistance)
  • Transformer and motor windings
  • Ring circuit testing
  • Earth conductor continuity
  • Wire-wrapped and solder joints
  • RFI shielding and coil resistance
  • Network cabling
  • Aircraft bonding check

The M210 milliohm meter is powered by a single 9V (PP3, MN1604 or equivalent) battery (not included).

Each M210 meter is supplied with:

  • Milliohm meter (Part No. M210)
  • Set of standard test leads with spring clip connectors (Part No. M210/9A)
  • A protective case (Part no. M210-100)
  • Instruction leaflet
  • UKAS calibration certificate

Also available are replacement M210/9A 4-terminal spring clip connector lead sets and M210/9B probe and clip connector lead sets.

The below drawings offer further details on the two available lead types as well as instructions on using them:

Rhopoint Instruments M210/9A and M210/9B drawning

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