Madison Company, Inc.
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All Categories > Liquid Level Switches and Liquid Level Sensors > Optical Level Switch and Single Point Conductivity Sensors > Conductivity Level Sensor for Food Applications > View Items 

Conductivity Level Sensor for Food Applications

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The M3850 is a small, low-cost conductivity level sensor designed for food applications in metal-walled tanks or vessels.  Installation is simple, and multiple units can be wire together in phase so that multiple tank level points can be detected. All materials are food-grade, and the contours of the insulator shell meet NSF requirements for cleaning.

While a conductivity switch and a float-type switch perform the same functions, the advantage of no moving parts is that the conductivity switch can be used in several environments that would cause a float to stick or to not operate at all. The probe is mounted with an insulator shell for sensing in such liquids. With no moving parts, switch operation of the M3850 is not interrupted.

Only an extremely small amount of current is necessary for the unit to perform. As with any device, a properly installed and grounded system poses no electrical hazard.

Madison supplies a basic controller with the M3850 that will satisfy a broad range of applications. Because conductivity varies widely among liquids, the controller is adjustable for sensitivity in different liquids. Consult factory for details on a specific liquid.

  • Small size
  • Low cost
  • Sensitivity-adjustable controller
  • No moving parts
  • Safe operation
  • Made entirely of food-grade materials
  • Can be used for multiple level indication

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Item #

Item Name

Max. Temperature

Max. Pressure


List Price

M3850 Sensing Head 105 ºC
221 ºF
30 psig Bulkhead 1/2-13 QUOTE
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