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    Absolute Magnetic Scale Linear Encoder, 2+2mm

    ATO absolute magnetic linear encoder is specially designed for flexible wires, with magnetic spacing 2+2mm, optional 9-way D-type connector, 15-way D-type connector, or 26-way D-type connector. This non-contact magnetic scale linear encoder is mainly used in various automatic motion control scenarios.
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    This absolute magnetic linear encoder can provide accurate absolute physical position information without phase search 350ms after power-on. It is very stable and reliable due to its non-contact, wear-free measurement principle and built-in safety algorithm. The magnetic scale comprises an incremental code channel composed of a 2mm pole pitch and an absolute code channel composed of binary code. Therefore, during installation and use, the direction between the encoder and the encoder needs to be matched.


    • The absolute magnetic linear encoder has a true dual-channel feedback system, which is suitable for high-speed, multi-motor pulley operation scenarios.
    • The magnetic scale encoding cycle is the same, and the length is 512mm.
    • During the magnetic scale crossing process, it can automatically switch between zero and absolute position information, and keep communication smooth. The detection blind area is very small.
    • The absolute magnetic strip encoder supports multiple communication protocols such as BISS-C, SSI, Tamagawa, RS-485, etc.
    • It adopts a widened appearance structure design and supports multiple specifications of magnetic scales with widths of 12mm, 15mm and 20mm.
    • The absolute magnetic linear encoder adopts IP67 grade epoxy resin potting process.


    Model ATO-TMS512
    Technical Parameters
    Pole width 2mm
    Maximum measuring length 482mm
    Repeat accuracy <2μm
    Unidirectional repeatability <1μm
    Maximum speed 5m/s
    Electrical Parameters
    Power supply from 4.75V to 5.5V (on the connector), reverse polarity protection
    Power consumption <250mA (5V power supply, 15m cable length, no load)
    Setup Time After Power-On <350ms (after the setup time, the encoder will start responding according to the communication protocol)
    Position delay <62.5μs
    Position Data Communication interface (Optional) SSI/BISS-C/TAMA/RS485
    Connector Type (Optional) 9-way D-type connector (male)/15-way D-type connector (male)/26-way D-type connector (male)
    Wiring Method Direct lead output
    Structural Parameters
    Material Encoder: aluminum alloy
    Weight 125g (read head with 0.5m cable, DB9 connector)
    Cable Parameters
    Cable type black, PUR high bending cable, UL AWM identification, drag chain compatible, tinned braided shield, RoHS approved
    Number of Wires 8
    Cable Outer Diameter 5.0 +0.15mm
    Wire AWG Red-grey, white-blue, brown-yellow, green-black 4x2x0.05mm2
    Cable Bending Radius Fixed installation: 35mm, free movement: 69mm, continuous bending: 83mm
    Cable Mass 31g/m
    Cable Torsion Continuous torsion is not allowed
    Ambient Temperature Parameters
    Operating Temperature -10°C~+55°C
    Storage Temperature -20C~+ 85°C
    Vibration (55Hz to 2000 Hz) 300 m/s2 (iec60068-2-6: 2007)
    Shock (11ms) 300 m/s2 (iec60068-2-6: 2007)
    Humidity 100%RH (condensation allowed)
    EMC Static Electricity EN IEC 61000-6-2: 2019
    EMC Radiation EN IEC 61000-6-4: 2019
    Environmental Sealing IP67 (according to IEC 60529: 1992+A2: 2013)
    External Magnetic Field Allowed in Working State <1 mT

    Connector Types

    Absolute magnetic linear encoder connector types

    Dimension (Unit: mm)

    Absolute magnetic linear encoder dimension

    Tips: How to choose an absolute magnetic linear encoder?

    Choosing an absolute magnetic linear encoder involves considering several key factors. First, determine the required resolution and accuracy for your application. Evaluate the encoder's resolution, typically specified in micrometers or nanometers per unit of measurement. Next, assess the required length of travel and ensure the encoder can accommodate it. Consider the environmental conditions such as temperature, humidity, and exposure to contaminants, and choose an encoder with appropriate IP (Ingress Protection) ratings. Additionally, assess the speed and acceleration requirements of your application and select an encoder with suitable frequency response and dynamic performance. Consider the installation space and mounting options, ensuring compatibility with your system. Lastly, evaluate the cost and reliability of different encoder options, balancing performance requirements with budget constraints.

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