Rhopoint Instruments

Rhopoint Instruments

Portable, Low Resistance Digital Meter Manufacturer

  • Member of the Rhopoint group
  • UK Manufacturer of the M210 milliohm meter and accessories
  • Replacement 4-terminal spring clip connector test leads (M210/9A) as well as probe and clip connector leads (M210/9B) available
  • Also design and manufacture of appearance and surface quality instrumentation

For their official website, please click here

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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

£0.00 Ex Tax: £0.00

Rhopoint M210-100 replacement carry case for M210 Milliohm Meter

Replacement carry case for the M210 Milliohm meter. Made of quality black faux leather with soft padding inside and a shoulder strap, it helps protect the equipment on the go or in storage. The case features two separate compartments - one for the meter itself and one for the set of test leads, and appropriate cutouts to facilitate use of the Milliohm meter without having to take it out of the case.

    M210-100 carry case is supplied with M210 Milliohm Meter as standard, there is no need to purchase one separately unless a replacement or spare set are needed.

    • Replacement carry case to fit M210 Milliohm Meter and a set of test leads
    • Black faux leather
    • The M210 Milliohm meter can be operated without being taken out of the case
    • 15(H) x 14.5(W) x 4.5(D) cms
    • The Milliohm Meter is not included

£0.00 Ex Tax: £0.00

Rhopoint M210/9A 4-terminal spring clip connector lead set for M210 Milliohm Meter

Replacement set of 4-terminal spring clip connector lead set for Rhopoint Instruments' M210 Milliohm Meter. The M210/9A set includes two leads connecting to the Milliohm Meter by two 4mm plugs. Each lead has a two-terminal crocodile clip at the end, which clips onto the tested component, ensuring accurate reading s every time. The jaws of crocodile clip feature copper/silver inlay and are insulated from each other by plastic moulding, allowing for four connections to be facilitated by only two clips. The leads are supplied in 1m length as standard, but any length can be supplied upon request. As the resistance of the wire plays no part in the measuring, this does not affect accuracy of the meter.

M210/9A set of leads is supplied with M210 Milliohm Meter as standard, there is no need to purchase one separately unless a replacement or spare set are needed.

  • Standard lead set as supplied with M210 Milliohm Meters
  • 4-terminal connection facilitated by two crocodile clips
  • Can be supplied in any length (1m supplied as standard if not specified)
  • The length of the leads does not affect accuracy of measurement
  • The Milliohm Meter is not included

The drawing and operation details of the M210/9A lead set can be seen below:

Rhopoint Instruments M210/9A drawning

£0.00 Ex Tax: £0.00

Rhopoint M210/9B probe and contact connector lead set for M210 Milliohm Meter

Optional set of probe and contact connector lead set for Rhopoint Instruments' M210 Milliohm Meter. The M210/9B set includes two leads connecting to the Milliohm Meter by two 4mm plugs. Each lead has an insulated crocodile clip at the end, which clips onto the circuit, and a 4mm Oz plug with attachable test probe which can be used for taking measurements at different positions. The leads are supplied in 1m length as standard, but any length can be supplied upon request. As the resistance of the wire plays no part in the measuring, this does not affect accuracy of the meter.

M210/9B set of leads is an optional extra, it is not part of the standard M210 Milliohm Meter package.

  • An optional, non-standard set of two test leads for M210 Milliohm Meters
  • 4-terminal connection facilitated by one crocodile clip and two test probes
  • Can be supplied in any length (1m supplied as standard if not specified)
  • The length of the leads does not affect accuracy of measurement
  • The Milliohm Meter is not included

The drawing and operation details of the M210/9B lead set can be seen below:

Rhopoint Instruments M210/9B drawning

£0.00 Ex Tax: £0.00