SC35 Series Vibrating Fork Point Level Sensor

SE3 Series Compact Rotary Paddle Point Level Sensor

The SE3 Series compact rotary paddle point level sensor is a bulk solids bin level indicator or level switch that uses a robust synchronous drive motor to rotate a stainless steel shaft at approximately 1 RPM.  It is small and compact, a great choice for installations with limited space.

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Product Description

The SE3 series level switch’s paddle actuating mechanism is attached to the shaft inside the bin or hopper that the SE3 series is mounted on. A clutch mechanism is also a key component within the SE3 level switch assembly. With the target material not present at the paddle inside the bin, the paddle will rotate freely and the internal switch output will be in its starting position and the internal LED will illuminate Green indicating that the paddle is rotating free of material. When material is in contact with and covering the paddle inside the bin or hopper, the clutch will disengage, the switch output changes state, the motor power is disconnected internally and the Red LED illuminates indicating material presence.  The SE3 series compact rotary paddle point level sensor is cost-effective and is the ideal bulk solids level switch for installations with limited space surrounding the mounting point.

  • Compact, robust design fits virtually anywhere
  • Unique bi-color LED (Green/Red) for local indication of material presence/absence
  • Standard, reinforced extended shaft and high temperature versions available
  • Easily adjusted sensitivity if required
  • Folding stainless steel paddle affords installation without internal bin access
  • Versions include standard, reinforced extended shaft and high temperature units
  • Operating temperature up to 185⁰F (85⁰C) standard, 392⁰F (200⁰) high temperature versions
  • Operating pressure up to 58psi (4bar)
  • IP65 / NEMA 4X diecast aluminum powder coated enclosure
  • Variety of threaded and flanged process connections (¾”NPT standard)
  • 24VAC, 110VAC, 220VAC, 240VAC 50/60Hz and 24VDC power supplies available
  • SPDT microswitch output, 5A@250VAC/30VDC
  • Reinforced shaft extended length up to 15.75″ (400mm)
  • Prewired electrical cable length (11.8″/300mm standard) up to 157″ (4m)


  • High, low or intermediate level indication
  • Engage annunciator light or alarm system
  • Input to PLC or DCS control system
  • Disengage filling/emptying of bin or hopper
  • Machine control based on feed hopper level


  • Plastics
  • Food and ingredients
  • Pharmaceutical
  • Specialty chemical
  • Wood processing
  • Many others

SE3 Series Sales Catalog

SE3 Series Operation Manual

Full-Line Products Catalog

Product Solutions for Bulk Solids Industries

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