Easier angle measurement in confined spaces

Variohm EuroSensor, the exclusive UK distributor for Contelec, discusses non-contacting angle sensors and their use in confined spaces.

Confined spaces, difficult environments and price sensitivity; with a combination of these factors, angle measurement becomes a demanding undertaking. Applications requiring reliable, accurate angle measurement in harsh operational environments - such as agricultural and municipal vehicles, buses, fork lift trucks, grain mills and railway equipment - place heavy demands on suppliers of rotary encoders. The challenge is to develop innovative systems that are characterised by compact dimensions, refined design, intelligent installation capabilities, high protection rate and ruggedness. On top of this, the rotary encoders are expected to meet exacting precision and service-life requirements without being expensive.

The Vert-X 05E angle sensor, available exclusively from Variohm EuroSensor in the UK, offers value for money and, with its ultra-compact size and physical architecture, can be used in confined spaces. Potted with a high-grade, temperature-resistant epoxy resin, it is impervious to contamination. With IP68 protection and an operating temperature range of -40degC to +125degC, it copes easily with harsh environments.

In non-contacting magnetic rotary encoders, the sensor unit and magnetic actuator are physically separated. This brings a high level of resistance to shock and vibration and enables accurate measurements to be made - even with considerable axial and radial offsets between the sensor and actuator.


Just 5mm high, the very slim angle sensor is unusually compact, with its measurement system only 6mm from the edge. This enables the Vert-X 05E to be used in applications with a rotation centre close to a wall.

It is easy to select the sense of rotation: the Vert-X 05E angle sensor can simply be installed either way round for clockwise or counter-clockwise angle measurements, with no need to program the angle sensor.

The non-contacting measuring principle also enables measurements to be made through non-magnetic materials (liquids or solids).

A fully redundant version of the Vert-X 05E angle sensor is also available for mission-critical or safety-related applications.

Key performance characteristics



tdata{Measuring range|0-360 degrees}

tdata{Resolution|12 bit}

tdata{Linearity|+/-0.3% of measuring range}

tdata{Operating temperature|-40 to +125degC}

tdata{Supply voltage|5V DC (alternatives available on request)}

tdata{Interface|10-90% Ub, incremental}

tdata{Electrical connection|Pins or potted leads}

tdata{Maximum repeatability|0.1 degree}

tdata{Protection class|IP68}


Customer benefits

  • Non-contacting measurement (unlimited mechanical life)
  • Rugged, fully potted sensor
  • Slim, compact design for installation in confined spaces
  • Easy installation for measuring rotation in either direction
  • Measurement through solids and liquids
  • Redundant version available
  • Insusceptible to dust and moisture
  • IP68 protection
  • High tolerance to axial and radial offsets of the actuator
  • Reverse polarity protection of power supply, short-circuit protection at sensor output
  • Compatible hole spacing with Vert-X 31E, Vert-X 28 and WAL 305
  • Customised versions available on request

For further details about the Vert-X 05E angle sensor, go to www.variohm.com.

Variohm-EuroSensor Ltd

Williams Barn
Tiffield Road
NN12 6HP

+44 (0)1327 351004



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