Newall MPO-TT Glass Incremental Encoder

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The MPO-TT glass linear encoder (glass scale) is intended to be a direct replacement for the Heidenhain LS477 Encoder. The encoder provides a TTL A Quad B output in either 3 or 5 micron accuracy grade and 0.1 or 0.2 micron resolution. Distance coded reference marks are optional. Travel lengths up to 2040mm (80.3") available.

Note: When requesting a quote please specify the travel length, accuracy grade, cable length, and connector type. When ordering please specify the required output resolution, the measuring length, reference mark type, accuracy, cable length, connector type, and mounting spar. See downloadable data sheet for more information. 

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The Newall Advantage

  • Replace your Heidenhain LS477 Encoder for a fraction of the cost
  • Improved availability compared to Heidenhain

Quick and Easy Installation

The design of these glass linear encoders allow the user to quickly install this scale into the same envelope as the like Heidenhain scale at a fraction of the cost.



Output Signal TTL A Quad B
Accuracy/Meter ±0.0002" (±5µm) or ±0.00012" (±3µm)
Resolutions 0.2µm and 0.1µm (after 4-fold)
Scale Travels 70mm to 2040mm
Grating Period 20µm (40µm optional)
Reader Head Dimensions 84mm x 18mm
Reference Marker Every 50mm, distance coded, none
Maximum Traverse Rate 1m/s, 0.5m/s, 0.4m/s
Power Supply 5VDC ±5%, <120mA
Shock (11ms) <=100m/s2
Vibration (55-2000Hz) <=30m/s2
Environmental Rating IP53, IP64 with compressed air
Operating Temperature 0° to 50°C
Overall Scale Length Scale travel length + 105mm
Standard Cable 3m non-armored
Maximum Cable Length 82' (25m)
Standard Connector Flying leads

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