Datum Electronics Ltd. - PRODUCT NEWS

 


Torque Measurement Solutions: Torque Transducers, Torque Sensors at competitive prices.

The Datum Electronics series 420 torque transducers are unique, genuine and reliable non-contact method of measuring rotary torque. Operate with no direct contact from the rotor to the stator; they are more efficient, cost effective and have improved longevity than previous torque transducer models in the marketplace.

Accurate & Dependable Torque Transducers
These torque measuring systems are available either as complete torque transducer or as separate rotor & stator assembly, ideal for high speed test rig and OEM applications. They provide a system accuracy of 0.1% of full scale either into a PC or laptop via USB, independent control system or a rack-mounted Torque Indicator. All Datum Electronics torque transducers have a strain gauged central element and a set of rotating conditioning electronics, the digital signals from this are digitally transmitted to the non-rotating body or stator of the system. The Series 420 has three different types of torque transducer, each with their own distinctions in terms of functionality and for use within different environments.


M420 Torque Transducer

The M420 is our standard rotary torque transducer. The standard torque transducer has the rotary shaft and a stator built into its static housing. The housing is mounted on the shaft with bearings. The M420 series torque transducer is available in four standard sizes to meet the needs within a torque measuring environment.

Torque Transducer Ratings
Size 1 0-100Nm
Size 2 0-500Nm
Size 3 0-2,000Nm
Size 4 0-10,000Nm

The M420 torque sensor is highly accurate, with a combined error of 0.1% as standard on all M420 Torque Transducer sizes. They provide a digital data signal (USB) which can measure torque, Speed and Power. They are suitable for use on test rig applications and permanent installations.






FF420 Torque Transducers

Flange Torque Transducer matching standard DIN Flanges within test rigs and drive systems. The torque transducer element in this case is a flange-flange coupling with the strain gauges and the rotor electronics mounted in the centre section of the coupling. The signal is transmitted across a digital transmission coupling link to the stator that is mounted around the centre of the coupling. The rotating element of the torque transducer is not limited by bearings; therefore it can be used at higher speeds, and places no bearing loads on to the shaft. The stator needs to be mounted in relation to the shaft within an operating envelope of +/- 3 to 5mm. We have standardised our range of torque transducers for clear and simple applications and specifications.

Torque Transducer Ratings

Size 1 0-250Nm
Size 2 0-500Nm
Size 3 0-2,000Nm
Size 4 0-10,000Nm

The FF420 torque transducer is highly accurate with a combined error of 0.1%. It uses a true ‘non-contact’ transmission signal. Another advantage of the FF420 torque transducer is that is tolerable to misalignment, because of the way the torque transducer is engineered. The standard ranges are compatible with DIN Size flanges.




 

RS420 Torque Transducers

The RS420 is our Rotor/Stator Torque Transducer with a keyed shaft and a Free Standing Stator. This type of torque transducer is very similar to the FF420 but has keyed or splined shafts as opposed to flanges. The torque transducer element in this case is a keyway or splined shaft with the strain gauges and the rotor electronics mounted either on the shaft, or inside the shaft depending upon shaft size and feasibility. The signal is transmitted across an inductive link to the stator that is mounted around the centre of the coupling, with a visible air gap. This type of torque transducer has no bearings, and there is no secondary load on the test shaft which allows for multiple shaft sizes. Because the torque transducer has no bearings, it can be used at higher speeds, running much faster and longer than traditional torque transducers containing bearings. The stator needs to be mounted in relation to the shaft within an operating envelope of +/- 3 to 5 mm. We have standardised our range of torque transducers for clear and simple applications and specifications.

Torque Transducer Ratings
Size 1 0-100Nm
Size 2 0-500Nm
Size 3 0-2,000Nm
Size 4 0-10,000Nm

The RS420 torque transducer is highly accurate with a combined error of 0.1%. It uses a true ‘non-contact’ transmission signal. Another advantage of the RS420 is that is tolerable to misalignment, because of the way the transducer is engineered.


Series 420 Torque Transducer Features

Among the enhanced features are the additional options for:

Direct Digital Data (USB)
Direct Analogue Output
Direct Serial Outputs (RS232)
Increased Sampling Rates (100, 1,000, 5,000, 10,000, 20,000sps)
Analysis Tools for enhanced data analysis

Key System & Features of the Series 420 Rotary Torque Transducers

Accurate On Shaft Torque Measurement
Non-contact Power and Signal Transmission
Proven Technology
Low Maintenance
Simple Linear Calibration
Engineered to fit most drive components
0-25,000rpm
No restriction on shaft size
Rotary and Static Torque Measurement
Self-Test Facility
Output Options (Direct USB or RS232 output)
TorqueLog Software
4-20mA or 0-10Vdc
CAN Bus
Specialist Data Analysis
AC Coupled Data
Fast Burst Mode Data to 30,000sps
Standard Data Output to 5kHz
Event Linked Outputs
Competitive Pricing
Standard Transducer Range
Fast Turn Round on Non-standard Shafts and Couplings
OEM Production Solutions

The new range is complemented by Datum Electronics ability to engineer special torque solutions with Transducers, Sensors, Indicators and Software tailor made to meet customer requirements.
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For more information :

Datum Electronics Ltd.
Tel: +44 (0)1983 282834
Fax: +44 (0) 1983 282835
Email:
web@datum-electronics.co.uk
Website: www.datum-electronics.co.uk

February 2008

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