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X502 Rotary Inductive Position Sensor

ATEX and IECEx approved for use in potentially explosive gas/vapour atmospheres calibrated between 5-15 degrees and with smaller angles of deflection

About the X502 Rotary Inductive Position Sensor

The intrinsically safe X502 rotary sensor is ATEX and IECEx approved for use in potentially explosive gas/vapour atmospheres. It is designed for industrial and scientific feedback applications, like the X500 but with better resolution at smaller angles of deflection, and is ideal for OEMs seeking good sensor performance for arduous applications in hazardous areas.

The sensor provides a linear output proportional with angle of rotation. Each unit is supplied with the output calibrated to the angle required between 5 and 15 degrees and with full EMC protection built in. There is a machined registration mark to identify the calibrated mid point.

The intrinsically safe sensors are designed to be used with a galvanically isolated amplifier. Approved galvanic isolation amplifiers are available; there is a choice of 0.5-9.5V or 4-20mA transmission outputs.

The sensor can be installed with a cable length up to 1km between the sensor and the amplifier.

Overall performance, repeatability and stability are outstanding over a wide temperature range. The X502 has long service life and environmental resistance with a rugged stainless steel body and shaft, the flange and servo mounts are anodised aluminium. The flange or servo mounting options make the sensor easy to install. Environmental sealing is to IP65 or IP67 depending on selected cable or connector options.

Features X502

  • Intrinsically safe for gas to: Ex II 1G
  • Non-contacting inductive technology to eliminate wear
  • Angle set to customer’s requirement
  • Compact, durable and reliable
  • High accuracy and stability
  • Sealing to IP65/IP67 as required

As a leading supplier of linear, rotary, tilt and intrinsically safe position sensors, Althen has the expertise to supply a sensor to suit a wide variety of applications.


Body diameter
Sensor mounting
Flange or servo
Independent linearity
< ±0.25% FSO
Temperature range
-40°C to +80°C
Intrinsically safe for gas to
Ex II 1G
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