Absolute precision
for straight &
circular motion.
The AL500 absolute magnetic encoder combines a generous installation gap with flexible magnetic scale layouts for linear axes and circular magnetic levitation transfer lines. Designed for fast, accurate position feedback in demanding motion systems.

A large installation gap.
A scale that can follow the loop.
AL500 is a large-gap absolute magnetic encoder for applications where mounting clearance and machine geometry shape the design. Pair it with an MS500 magnetic scale for straight travel or circular magnetic levitation lines.
Large magnetic encoder installation gap
The sensing distance is under 1.6 mm, with 1.2 mm recommended. This generous mounting clearance helps simplify alignment when installing an absolute magnetic encoder and scale.
For circular magnetic levitation lines
Configure the magnetic scale for ring-shaped transfer layouts as well as straight linear axes, enabling absolute position feedback along circular production routes.
Absolute position feedback
True absolute measurement supports fast position recovery after power-up for automated transfer and positioning systems.
Fast motion capability
Measure at speeds up to 5 m/s, with a maximum traverse speed of 5 m/s.
Fine position resolution
1 μm resolution and repeatability below 2 μm for precision positioning tasks.
Sealed for industrial use
IP67 protection with an epoxy resin potting process for added environmental resilience.
One encoder for linear axes and circular transfer lines.
Use AL500 where a large installation gap and flexible scale routing can simplify the design of linear motion systems and magnetic levitation transfer lines.
Product dimensions
Insert the AL500 product dimension drawings here.
AL500 series specifications
Values below are taken from the supplied product parameter workbook. Confirm the required output and scale combination when ordering.
| Parameter | Specification |
|---|---|
| Measurement system | Absolute magnetic |
| Resolution | 1 μm |
| Repeatability | < 2 μm |
| Maximum measuring length | 1 m |
| Maximum measuring / traverse speed | 5 m/s |
| Power supply | 5 V ±5% |
| Current consumption | 150 mA max. (at 25 °C) |
| Power-on initialization | < 350 ms |
| Maximum cable length | 10 m |
| Sensing gap | < 1.6 mm; 1.2 mm recommended |
| Encoder dimensions | 44 × 37 × 7.66 mm |
| Protection / temperature | IP67 · Operating −5 to 70 °C |
| Storage temperature | −25 to 105 °C |
| Compatible scale | MS500 series scale for linear or circular layouts |
Planning a new motion system?
Talk with OTV Sensing about measurement range, communication protocol, mounting gap and cable configuration for your AL500 application.
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