Contactless magnetic tape encoder ETMA

For harsh conditions with 0,01 mm resolution

ELTRA’s new ETMA magnetic tape encoder was developed for harsh industrial environments, and is resistive to dust or humidity.

Designed to be used with long cables, the outputs are either push-pull or line driver. 

The ETMA sensor is available with 0,025 or 0;01 mm resolution. An optional zero pulse every 2 or 5 mm facilitates measurement on long ranges.

For outdoor applications, a magnet scale can be provided with a cover. 

The sensors are resistant to temperature changes, dirt, dust and similar contaminants. Primary applications include motor feedback in heavy duty environment, handling machines and door positioning. 

Main features:

  • Max 0,01 mm resolution
  • Airgap up to 2 mm 
  • Power supply 5 to 28 VDC
  • Push-pull or line driver output for long cables
  • IP67 grade
  • Resistive to dirt and humidity


  • Motor feedback in heavy duty environment
  • Handling machines
  • Door positioning
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