M502 Small angle rotary sensor

Compact intrinsically safe rotary sensor for precise small-angle measurements in hazardous mining and industrial environments. Designed for easy integration and long-term durability.

Key features

Intrinsically safe for use in gas, dust, and mining environments (ATEX / IECEx / UKEX)
Angle range factory set between 5° and 15°, with high resolution at small angles
Non-contact inductive technology ensures no wear and long service life
IP67 sealed stainless steel housing for harsh environments
Output is linear and fully ratiometric (0.5–4.5 V at 5 V supply)
Five-wire mode supports long cable runs up to 1000 m with accurate output

Performance highlights

The M502 small angle rotary sensor delivers high-resolution, repeatable position measurements in compact form. Designed for OEMs requiring stable and linear output over small angular displacements, it offers exceptional accuracy across a -40°C to +80°C temperature range. Its EX07 electronics are certified for gas, dust, and mining zones, ensuring operational safety.

Usage conditions

Built with non-contact inductive sensing technology, the M502 withstands mechanical stress and environmental challenges. It features a stainless steel body, IP67 sealing, and is available in flange or servo mount configurations. Factory-set angles (between 5°–15°) and full EMC protection make it adaptable to precise applications.

Possible applications

Mining equipment and underground machinery
Valve position monitoring
Mobile hydraulics and industrial automation
Safety-critical systems in hazardous environments
Drilling and boring equipment

Advantages of choosing this product

Choosing the M502 guarantees minimal maintenance, reliable linear performance, and safe deployment in explosive atmospheres. Its rugged construction and optimized resolution for small-angle feedback set it apart in its category. Integration is simplified with flexible connection and mounting options, while five-wire mode enhances accuracy over long distances.

Other important features

Full 360° shaft rotation without mechanical stops
EMC-compliant to EN 61000-6-2, EN 61000-6-3
Resolution: infinite (analog)
Sealed connector or cable options
Output midpoint alignment via registration mark
Compatible with Althen X005 galvanic isolation amplifier

Do you need this sensor for your next project?

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Not exactly what you are looking for? We offer standard sensors, but can also help you with sensors adapted for you or a fully customised measurement solution. Contact us for advice or pricing.