Based on the Isle of Wight in the UK, Datum Electronics has had an established presence worldwide for decades. The company develops cost-effective, high-quality torque measurement solutions, which can be easily integrated into customers’ product lines and within existing machinery.
Datum has maintained substantial investments in research and development over the years and strives to always remain on the leading edge of torque and strain measurement technology. Moreover, the company partners with major OEM customers to develop specialised solutions to integrate its torque and strain sensors into their machinery.
Datum’s innovative strain gauge-based technology has been successfully used in many industries for decades. This includes product torque testing, drive system R&D, verification of shaft power levels for quality control and compliance, strain sensors for vehicle weighing and safety, vehicle drive shafts, shaft power systems on vessels, and numerous other applications where power transmitted through shafts is key to efficiency and safety.
Datum Rotary Torque Sensor with Keyway Shafts M425
Datum Dynamic Flange to Flange Torque Sensor FF425
Datum Contactless Torque Sensor with Separate Rotor and Stator RS425
Datum Static Flanged Torque Sensor FF410
Datum Custom Shaft Torque Sensor Solutions
Datum Custom Industrial Torque Sensors
Datum 2-Hole Bolt-On Strain Gauge Sensor
Datum 3-Hole Bolt-On Strain Gauge Sensor
Datum Portable Shaft Power Measurement Kit
Datum Marine Shaft Power Meter System
Datum Naval Shaft Power Meter System
Datum Tractor PTO Shaft Power Monitoring System
Datum Helical Screw Pile Sensor C440
Datum Type 132 Load Cell Amplifier
Datum Type 131 Load Cell Amplifier
Datum Universal Torque Sensor Interface
Datum Electronics M420 Rotary Torque Transducer
Conventional torque transducer with rotary shaft and static body. This complete packaged torque sensor transmits the torque signal from the rotating shaft within the torque transducer body. The static element of the torque sensor is mounted to the rotary shaft with bearings. Ideal for applications that require the sensor to be mounted in line with the driven torque including test rig applications.
High Accuracy 0.1%
Proven Digital Data Transmission Technology
Robust and Reliable
Datum Electronics FF420 Rotary Torque Transducer (without bearings)
Flange mounted torque transducer with non-contact transmission to stator.
Simple to mount, rotor stator air gap +/-3mm up to +/-10mm, no bearings, direct serial data output of torque, shaft rpm and power, analogue output options 4-20mA and +/-10Vdc.
Standard DIN Flange Range 100Nm to 200KNm
Modular Range fitted to Coupling Spacers 50Nm to 500KNm
Datum Electronics RS420 Rotary Torque Transducer (without bearings)
Shaft mounted torque transducer with non-contact transmission to stator. The rotary shaft can either be keyway or splined as standard, or be made to custom fit shafts as required. With no bearings the mass of the torque transducer added to the transmission line is greatly reduced when compared to a torque transducer with bearings. Ideal for applications that require low maintenance and long term operational requirements.
High Accuracy
Fitted to Free Issue Transmission Shaft or standard transducer shaft
Low Rotor Mass
No Bearings
Datum Electronics FF410 Static Torque Transducer
The Datum Electronics Series 410 Static torque sensor was developed following developments of our FF420 series of rotary torque transducers. The same basic shaft components and strain gauge technology have been applied to our 410 Reaction transducer range providing a competitive option within the static transducer market.
Datum Electronics Marine Torsionmeter Systems
Datum Electronics Series 420 Marine Torsionmeter System provides an accurate tool to assess and monitor propeller shafts on ships by measuring shaft speed, torque and power. This Torsionmeter system can be installed on a ships propeller shaft or shafts and uses strain gauge technology providing a highly accurate non-contact method of measuring shaft torque.
Datum Electronics Shaft Power Meters
The Datum Electronics Series 420 Shaft Power Meter provides an accurate tool to access and monitor the performance and efficiency of the ships transmission system. The torque transducer accurately measures the on-shaft torque (kNm), speed of the shaft rotation (rpm) and the power (kW) that is going through the shaft. The system can be applied to both single and dual shaft ship systems
Datum Electronics Drive/Prop Shaft Torque
Whatever the application, an accurate and simple torque measurement of the transmission can be invaluable to improve designs, protect the machinery, reduce maintenance costs and control performance. The two PTO Drive Shaft Systems offered by Datum Electronics provide effective on-shaft torque monitoring which will fit a wide range of shafts and give effective measurement of power through the drive shaft.
Datum Electronics PTO / Power Take Off
Datum Electronics Series 420 PTO (Power Take Off) Shaft Torque and Power Monitoring System will monitor and log the torque, shaft speed and transmitted power accurately when testing new systems driven from all standard PTO Shafts.
Datum Electronics Torque Calibration
Datum Electronics specialise in the servicing and calibration of torque transducers for their own non-contact ranges (Series 420 torque transducers) and reaction torque transducers (Series 410) plus many other commercially available torque sensors.
Datum Electronics Torque Trails Kit
The Datum Electronics Series 430 torque trials kit is a temporary fit system designed to measure the on-shaft torque for trials applications on rotating shafts between 150mm to 1100mm in diameter.
Datum Electronics Torque Measurement
Our Rotary torque meausurement solutions come in an array of different types and varieties. Our experience and expertise allows us to offer flexible, workable solutions that meet the needs of our customers across a number of industries. Torque measurement can be used in a number of different applications and for different requirements, including monitoring and control, power management and increased efficiency savings. If you are looking to measure/control power, torque and speed then our range of torque instrumentation has been designed to help you. Typical applications where torque measurement has been utilised can be found here.
We have a standard range of torque transducers and instrumentation which we have developed over a number of years. Measuring torque in Newton Meters (Nm) as standard, we can measure torque from as low as 5Nm up to and including 500,000Nm. We use a strain gauged shaft; that can be incorporated into most commercially available drivelines via either a keyway, spline or flange shaft. Our torque transducers use standard RS232 digital data to transmit torque, giving fast and effective data that is clean and easy to use.
Although we have a standard product range, our capabilities can extend beyond the minimum requirements; below are just some examples of options available:
Specifications Available
Torque Rating
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5Nm up to 500,000Nm
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Rotational Speed
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0 - 20,000rpm
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Data Sampling Rate
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0 - 20,000 samples per second
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Torque Output
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RS232 / RS485 / 0-10V / 4-20mA / +/-10V / +/-12mA
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Calibration Units
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Nm / lbft / ib-in / kNm
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Shaft Options
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Standard: Flange/Flange, Keyway Shaft, Spline shaft
Non-Standard: Can be fitted to free issue customer shaft
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Accuracy
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System Accuracy 0.1% (0.05% can be achieved)
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Environmental Protection
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IP54 (Standard) up to IP68 if required
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Torque Analysis
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Standard: Torque, Speed and Power
Optional: Torque Ripple
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