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EZA25PM – Multiturn-Encoder
Next-generation wear-free rotary encoder technology enables precise measurement
Miniature design – just Ø25 mm, installation depth < 24 mm
No missed turns – counts turns during power loss
Battery- and gearless – maximum service life
Analogue output – voltage or current loop
The EZA25PM offers absolute angle measurement within a measuring range of 40 mechanical shaft revolutions – and counts turns even during a power loss, without a gearbox, battery or reference run. This makes it suitable for tasks that were previously solved using conventional multiturn potentiometers. The battery-free, gearless and contactless design reduces maintenance requirements, wear and the risk of failure. With a diameter of just 25 mm and an installation depth of less than 24 mm, the encoder fits perfectly into compact drive solutions and many other applications.
Miniature format
Housing diameter: Ø25 mm
Housing depth: <24 mm installation depth
Functional alternative: ideal for standard potentiometer applications
Multi-turn detection: up to 40 revolutions, no battery or gearbox required
Technology
Contactless sensor technology: with magnetic position sensing
True power-on: rotations are recorded even when the power is off
Teach-in function: configure the output characteristic directly within the application
Analogue output: 0–5 V, 0–10 V or 4–20 mA
Customizable
Electrical connection: cable length, connectors, etc.
Mechanical connection: shaft geometry
Output signals: customized output curve
Switching signals: two freely available digital input/output signals, e.g. for switching functions
Additional functions: firmware customization possible
Drives / Gear Motors
For drive applications, especially with gear boxes, knowing the absolute shaft position after a power interruption is critical. The EZA25PM continuously track both angular position and the number of revolutions—even while the system is powered off—eliminating homing procedures and ensuring immediate operational readiness after restart. The EZA25PM offers contactless operation, long service life, and immunity to wear, making them the preferred choice for demanding industrial and mobile drive systems. With a measuring range of up to 40 revolutions, the EZA25PM can even replace mechanical gearing in some applications, reducing complexity, wear, backlash, and installation effort.
AGV / AMR systems
For AGVs and AMRs, precise wheel position and movement tracking are essential for reliable navigation and localization. The EZA25PM provides absolute position information across multiple wheel revolutions and retains this information even during power loss, enabling immediate operation after restart without recalibration. The EZA25PM can simplify system design by reducing the need for additional mechanical transmission elements, while their contactless sensing technology ensures high reliability, long service life, and robust performance in demanding mobile automation environments.
Mobile machinery
In mobile machinery, reliable position feedback is essential for functions such as steering, boom positioning, lift control, and wheel angle measurement. The EZA25PM provides absolute position information across multiple revolutions and retains its position data even during power loss, enabling safe and immediate operation after restart without recalibration. Its contactless magnetic sensing technology offers high resistance to shock, vibration, dust, and moisture, making it an ideal solution for demanding off-highway, agricultural, construction, and material-handling equipment.
Automation
In industrial automation, accurate position feedback is essential for precise motion control, machine synchronization, and process reliability. The EZA25PM provides absolute multiturn position information and retains turn count data even during power loss, enabling immediate system availability after restart without homing procedures. Its contactless magnetic sensing technology delivers long-term reliability, high durability, and maintenance-free operation, making it an ideal solution for automated machinery, robotics, conveyor systems, and smart factory applications.