Contactless angle sensor range with multi-turn capability

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Contactless angle sensor range with multi-turn capability Contelec has announced two new multi-turn versions of its highly robust Vert-X series contactless Hall-Effect angle sensors. Available exclusively in the UK from Variohm EuroSensor, the sensors are the Vert-X 37MT CANopen which has a gearless 16-bit multi-turn and 16-bit single-turn resolution and the low-cost Vert-X 24MT, which may be programmed for up to 10 turns and has a 12-bit single-turn resolution.

The new models offer options at both ends of application spectrum for multi-turn angle sensors. The Vert-X 37MT CANopen model offers users a practically unlimited rotation count through a gearless, battery powered, multi-turn multiplier and has the added benefit of exceptional angular precision through its 16-bit single-turn absolute resolution. The specifications offered by the sensor also extend to an independent linearity of +/- 0.1 per cent and repeatability and hysteresis to 0.1degree. Its industry standard CANopen interface offers a reliable and robust performance with high immunity to electrical and magnetic interference.

Furthermore, this new model also boasts an IP68 environmental capability in a very durable sealed design with dual bearings and stainless steel housing. The combination of non-contacting absolute position, multi-turn capability, CANopen interface and extreme robustness makes the sensor well suited to the most arduous tasks and is firmly aimed at high-precision position measurement under adverse ambient conditions where humidity, dampness, dust and vibration are prevalent. Typical applications include construction equipment, agricultural machinery, cranes, drilling rigs etc.

Conversely, the best-price contactless multi-turn Vert-X 24MT is aimed at angle measurement where absolute position monitoring is required over just a few revolutions. It has a 5V DC input power and a 10–90 per cent single or half redundant signal output with an independent linearity of +/- 1 per cent. Its compact size, IP54/IP67 protection rating, and 12-bit resolution make it suitable for demanding position measurement on industrial equipment such forklift and truck steering angle, or position reference for linear and rotary electric actuators with a fixed travel range.

Both models, being magnetic-hall non-contact devices, offer excellent resilience to shock and vibration as well as long life – 50 million turns for the 24MT and 360 million turns for the 37MT, which also has a 3000 rpm maximum speed and high axial and radial load capability and thanks to its duplex bearing design. The 24MT has a lead wire connection whilst the 37MT offers an M12 connector.

For further information about these Vert-X series contactless Hall-Effect angle sensors please go to

09 December 2014

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