Rotary torque sensor by Datum: high signal resolution, wide frequency range

The Datum M425 rotary torque sensor and rotational torque transducer

Datum Electronics products are available from Hoskin Scientific Ltd., including the M425 rotary torque sensor and rotational torque transducer. This non-contact device works with most applications that need measurement of accurate rotary torque and power. Using standard keyway shafts, the M425 fits in line with the drive train or test bed.

The M425 is a revolutionary instrument for users who want to measure torque and power with high accuracy and repeatability with resolution of up to 24 bit.

Fourteen standard torque ranges

With this torque sensor, the customer has control over tests with torque sample rates selectable at any time from one to 4,000 samplings per second as standard. With revolutions-per-minute measurement based on up to 30 pulses per revolution, the M425 serves as a complete torque transducer for measuring torque and power on any rotating shaft.

With 14 standard torque ranges, high signal resolution, and a wide frequency range, the M425 non-contact rotary torque sensor is perfect for measuring torque from ten to 60,000 newton metres. The device is suitable for most general test rig applications – including electric motor testing, pump torque testing, and gearbox testing – with a torque measurement design with an optimum length to maximize overall accuracy and high tolerance to mounting offset.

Datum deems the M425 as the best torque sensor available on the market today, with its unmatched torque range, its high accuracy, and its versatility among various applications. Other features and specifications of this instrument from Hoskin:

• Accuracy: 0.1 per cent
• Non-linearity: 0.1 per cent
• Repeatability: 0.05 per cent
• Serial torque outputs: SCADA outputs, including RS485, RS232, Ethernet, Modbus UPD, USB logging
• Analog torque outputs: 4-20mA configured 4-20mA (4-12-20mA): +/-10Vdc, +/-5Vdc, 0-10Vdc, or 0-5Vdc
• Operating temperature range: Minus ten to 70 degrees Celsius
• Environmental protection: IP54
• Power supply: 10-24Vdc 250mA

Check out the video below for a look at the M425 rotary torque sensor and rotational torque transducer in action, used to build a motor test rig:

To learn more, contact Hoskin.

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