Non-Contact Rotary Torque Sensor | Torque Transducer

M425 Rotary Torque Sensor and Rotational Torque Trasducer Size 1

series 425 digital dynamic and reaction torque sensors

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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M425 Non-Contact Rotary Torque Sensor

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.

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

M425 Rotary Torque Transducer Range

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 Measurement Range**
Torque Sensor Size	1	2	3	4	5	6
Torque Sensor Range: A	0-10Nm	0-250Nm	0-1,000Nm	0-5,000Nm	0-15,000Nm	0-30,000Nm
Torque Sensor Range: B	0-20Nm	0-500Nm	0-2,000Nm	0-10,000Nm	0-20,000Nm	0-60,000Nm
Torque Sensor Range: C	0-50Nm
Torque Sensor Range: D	0-100Nm
Max Shaft Speed (rpm)	0-10,000	0-8,000	0-6,000	0-3,500	0-2,000	0-2000

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M425 Torque Sensor Features:

Accuracy: 0.1%
Non-Linearity: 0.1%
Repeatability: 0.05%
Sample Rate: 1 to 4000 samples per second
Serial Torque Outputs: SCADA uoptuts, including RS485, RS232, Ethernet, Modbus UPD, USB Logging
Analogue Torque Outputs: 4-20mA configured 4-20mA (4-12-20mA): +/-10Vdc, +/-5Vdc, 0-10Vdc or 0-5Vdc
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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M425 Torque Transducer for Rotating Torque Measurement

The non-contact rotary Torque Sensors from Datum Electronics have been designed to fit with almost any application, where accurate rotary torque and power measurements are required. The M425 Rotary Torque Sensor is mounted in line with the drive train or test bed, using standard keyway shaft connections.

A non-contact torque sensor features a non-contact transmission system, that provides data directly proportional to torque. It means that the torque sensor is supplied as a complete torque transducer with bearings to support the stator unit on the rotating shaft, making it an ideal choice for most general test rig applications.

The M425 Non-contact rotary torque sensor utilises a strain gauged shaft and a set of rotating on shaft conditioning electronics. The digital signals are then transmitted from the shaft to the non-rotating part of the system or stator, providing a reliable and highly accurate torque measurement solution. Considering that the analogue signal conditioning is completed within 25mm of the strain gauges, the M425 Dynamic Torque Sensors are very stable, when subjected to temperature variations and electrical noise.

Furthermore, the M425 rotary torque transducer has an optimal torque measuring element design, to maximise overall accuracy and give a high degree of tolerance to mounting offset.

The Ultimate Torque Sensing Solution

When connected to the Datum Universal Interface (DUI), the M425 Torque Sensor offers customers a digital display of torque, speed, and power, as well as a complete range of both digital and analogue outputs. The digital outputs consist of Ethernet, RS485, and USB, as well as local logging of test data to a USB memory stick for future analysis.
The DUI has 4 programmable analogue channels, that can be chosen from 0-20mA, 4-20mA, +/-10Vdc, +/-5Vdc, 0-10Vdc, 0-5Vdc for the output of torque, rpm and shaft power, etc. Using the DUI, an M425 rotating torque sensor becomes the simplest choice for anyone, looking to use a precise torque, speed, and power measurement system.

M425 Series Torque Sensor Range

Don’t have a lot of space to fit a torque transducer in line? See also our bearingless RS425 Torque Sensors and flange to flange FF425 Torque sensors.

Alternatively, get in touch with our team to discuss your requirements and find the most cost-effective solution for your application.

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for quotations for Torque Sensors, Torque Transducers, and Torque Meters.

M425 Rotary Torque Transducer Datasheet

M425 Rotary Torque Sensor User Guide

				A	B	C	D	E	F	G	H	I	J
Torque Sensor Size	Rated Load (Nm)	Rated Load (lb ft)	Rotational Speed (RPM)	Overall Length	Body Length	Body Dia.	Output Module Length	Output Module Height	Exposed Shaft Length	Shaft Dia.g6 fit	Keyway Length (BS 4235-1:1972)	Keyway Length (BS 4235-1:1972)	Keyway Depth off centre
Size 1 – A	0-10	0-10	0-10,000	184	130	66	112	3.5	27	15	22.5	5	4.3
Size 1 – B	0-20	0-20	0-10,000	184	130	66	112	3.5	27	15	22.5	5	4.3
Size 1 – C	0-50	0-50	0-10,000	184	130	66	112	3.5	27	15	22.5	5	4.3
Size 1 – D	0-100	0-75	0-10,000	184	130	66	112	3.5	27	15	22.5	5	4.3
Size 2 – A	0-250	0-200	0-8,000	240	150	85	112	3.5	45.5	30	22.5	8	11
Size 2 – B	0-500	0-400	0-8,000	240	150	85	112	3.5	45.5	30	44	8	11
Size 3 – A	0-1,000	0-750	0-6,000	315	150	112	112	4.5	82.5	50	44	12	20
Size 3 – B	0-2,000	0-1,500	0-6,000	315	150	112	112	4.5	82.5	50	78.5	12	20
Size 4 – A	0-5,000	0-4,000	0-5,000	425	150	137	112	4.5	137.5	75	78.5	20	30
Size 4 – B	0-10,000	0-8,000	0-5,000	425	150	137	112	4.5	137.5	75	78.5	20	30
Size 5 – A	0-15,000	0-12,000	0-2,000	416	168	172	112	3.5	124	110	116	32	44
Size 5 – B	0-20,000	0-15,000	0-2,000	416	168	172	112	3.5	124	110	116	32	44
Size 5 – C	0-25,000	0-20,000	0-2,000	416	168	172	112	3.5	124	110	116	32	44
Size 5 – D	0-30,000	0-25,000	0-2,000	416	168	172	112	3.5	124	110	116	32	44
Size 6 – A	0-40,000	0-30,000	0-1,500	416	168	228.6	112	3.5	124	152.4
Size 6 – B	0-60,000	0-40,000	0-1,500	416	168	228.6	112	3.5	124	152.4