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Rotary Torque Sensor

M425 rotary torque sensor with keyway shafts offers high accuracy of 0.1% and torque measurement range from 0-10Nm up to 60,000Nm as standard. It’s an inline rotation torque transducer, widely used for motor, gearbox and pump torque testing.

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Using a highly-accurate non-contact technique, the Datum M425 Rotary Torque Transducer and Torque Meter represent an ultimate torque sensor for anyone looking to measure torque, power, and speed with high accuracy and repeatability.

Rotational Torque Transducer Measurement

The M425 rotating torque sensors give the customer control over their tests with digital torque sample rates selectable at any time from 1sps up to 4,000sps as standard and analogue sample rates of 20sps.

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Key Features
STEP Drawings

Key Features

M425 Rotary Torque Transducer Range

Why we think this is the best torque sensor on the market?

Firstly, the  M425 Torque Sensors have 14 standard torque ranges, covering from 3 Nm to 60,000 Nm.

Having a rotating torque measurement design with an optimum length to maximise overall accuracy and give a high degree of tolerance to mounting offset, the M425 digital torque sensor is ideal for most general test rig applications, like electric motor testing, pump torque testing, gearbox testing (to name just a few).

M425 Torque Sensor Features:

  • Accuracy: 0.1%
  • Non-Linearity: 0.1%
  • Repeatability: 0.05%
  • Digital Sample Rate: 1 to 4000 samples per second
  • Digital outputs of Data through RS485 and Wi-Fi with Datum Connect App, including USB PC test software
  • Selectable Analogue Outputs of Torque, Speed & Power: 0-10V, +/-10V, 4-20mA, 12+/-8mA
  • Operating Range: -10 to +70˚C
  • Environmental Protection: IP54 (see our high-speed RS425 Torque Sensor for IP67/68)
  • Power Supply: 10-24Vdc 250mA

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  • Shaft to Shaft Configuration
  • High Accuracy & Repeatable Torque Measurement
  • Industry Standard for Test Rig Applications
  • Full Range of Torque: 10Nm – 60kNm
  • Variety of Digital and Analogue outputs
  • Available on Short Lead Times
  • Configurable Sample Rates
  • Widely Used for Motor Torque Measurement





      • What is the accuracy of the Datum Electronics M425 Rotary Torque Sensor?
        The M425 Rotational Torque Transducer from Datum Electronics offers high accuracy to 0.1%
      • What is the measurement range of the Datum Electronics M425 Rotational Torque Transducer?
        The M425 Rotary Torque sensor from Datum Electronics has a torque measurement range from 0-10Nm up to 60,000Nm as standard
      • What applications can Datum’s M425 Rotary Torque Transducer be put to?
        The Datum M425 Torque Sensor is widely used for motor, gearbox and pump torque testing, and represents the ultimate tool for anyone looking to accurately measure torque, power and speed with high accuracy and repeatability
      • What sample rates does Datum Electronics’ M425 Rotary Torque Transducer offer
        The M425 sensors from Datum can provide sample rates from 1 to 4000 per second and are user-selectable
      • How can I work out the Torque for my test, I only have the Motor Speed and power?
        Datum Electronics Ltd can work with the customer to calculate the expected torque using known measurement principle and suggest an appropriate torque sensor for you like our M425`
      • What if I don’t know my maximum torque measurement load?
        Datum Electronics torque sensors have a safety factor built into them for 150% overload protection. Our technical sales team will be happy to work with you to help you choose the right sensor
      • What is the smallest torque that you can measure?
        Our standard RS425 Size 1-Al is a 0-3Nm transducer which will give an accuracy of better than 0.1% of the full scale allowing for measurement in the Ncm range.

      STEP Drawings

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