BMIX magnetic, battery-backed quasi-absolute encoder Permanent position detection, even in de-energized condition

The ELGO measuring system BMIX is based on the physical principle of length and position measurement by using magneto-sensitive components. It is used for a high-precision detection of the position, length or speed. A rechargeable battery line integrated in the sensor housing transforms the incremental measuring system into a quasi-absolute measuring system, as the current position is - even in the de-energized state - permanently detected and furtherprocessed internally. 

  • Quasi-absolute length and position detection
  • Movements are even detected in de-energized condition
  • Proven magnetically based measuring technology
  • Wear-free, contactless measurement principle
  • Analog output interface (voltage or current, CANopen (DS406) interface 
  • High schock and vibration resistance
  • Robust against dust, dirt, smoke and water
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Mechanical DATA

Measuring principle incremental, quasi-absolute
Repeat accuracy ± 1 increment
System accuracy in µm at 20 °C

± (1000 + 20 x L), L= measuring length in meters

Distance sensor/ tape max. 10 mm
Sensor housing material ABS plastic
Housing dimensions
(L x W x H)
100 x 12 x 25 mm
Required magnetic tape MB20-160-10-1-R
Pole pitch 16 mm
 Max. measuring length theoretically unlimited
Type of connection standard: open cable ends,
optional: D-SUB or round connector
Sensor cable 1.5 m standard length,  others on request
Weight measuring system: approx. 120 g; cable: approx. 60g/m


Power supply voltage 10 ... 30 VDC
Residual ripple < 10 %
Current consumption max. 150 mA
Battery operating time with movement: approx. 16 days after power-off
without movement / in storage: approx. 32 days after power-off
Charging time before first use 4 h
Interfaces 12 bit analog output 0 ... 20 mA,
12 bit analog output 4 ... 20 mA,
12 bit analog output 0.5 ... 4.5 V,
12 bit analog output 0 ... 10 V,
CANopen (DS406)
Resolution 1 mm
Max. operating speed

2 m/s

Environmental conditions

Storage temperature -20 ... +45 °C
Operating temperature - charging process 0 ... +45 °C
Operating temperature - battery operation -20 ... +45 °C
Humidity 95 %, non-condensing
Protection class IP67


Flyer BMIX