Siemens SITRANS WS300 Digital Speed Sensor

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Speed sensor for use with Siemens conveyor belt scales. Converts shaft rotation into a pulse train of 32, 256, 1000, or 2000 pulses per revolution. The digital signal is transmitted as a speed input to any Siemens integrator to calculate belt speed, flow rate, and totalized weight. NEMA 4X/IP65 painted aluminum enclosure with 3-wire shielded cable (max run 1000 feet).

Territory Restriction: Due to our territory agreement with Siemens, Lesman is the authorized Siemens sales representative in Illinois, Indiana, Wisconsin, Eastern Missouri, Michigan's Upper Peninsula, and the Paducah, KY area. If you are outside that area, you can find your local sales office or get technical assistance by calling 800-365-8766 or 972-522-4500, or sending an email to

Siemens SITRANS WS300 is a low to high resolution, shaft-driven speed sensor that provides a signal to a digital integrator in conveyor belt scale applications. The WS300 replaces the retired Milltronics MD-36 and MD-256 speed sensors.

The SITRANS WS300 is directly coupled to a rotating tail or bend pulley shaft to ensure accurate belt-travel readout, eliminating problems cause by belt slippage or material build-up. It has a rugged, cast aluminum housing and is suitable for outdoor installation. It is bi-directional for either clockwise or counter-clockwise belt travel.

  • 32, 256, 1000 or 2000 pulses per revolutions for measurements over a range of belt speeds
  • Accurate belt speed detection
  • Compatible with any Siemens integrator
  • Light and rugged design, IP65 rated, corrosion-resistant
  • FM, CSA, ATEX, and CE approval; Intrinsically safe model available
  • Replaces retired Milltronics MD-36 and MD-256 speed sensors

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