Capacitance Multi-Point Level Switch

Captrol 514

Delavan’s Captrol 514 is a superior integral mount Microcontroller Based R.F. Capacitance “Multi-Point” Level Switch used in liquids and powder bulk solid applications.

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Product Description

R.F. Capacitance Multi-Point Level Switch

  • On board Microcontroller
  • Built-in system “Auto-Test”
  • Built-in “Self Diagnostics”
  • Easy to read 8 character Alpha Numeric LED display
  • Removable terminal strip

Function
Delavan’s Captrol 514 is a superior integral mount Microcontroller Based R.F. Capacitance “Multi-Point” Level Switch used in liquids and powder bulk solid applications.

Principle of Operation
The Captrol 514 Microcontroller Based Multi-Point Level Switch consists of solid state electronics mounted in a cast aluminum explosion proof enclosure. The integral unit utilizes a driven guard designed to eliminate the effects of material build-up or coatings that may cause false signals.

The sensing element section is energized with a R.F. (radio frequency) signal approximately 2mHz. When the process level changes, a change in capacitance occurs resulting in a change in frequency. The change in frequency is compared to each of the previously established user set-points. Depending upon the result of these comparisons, the microcontroller with adjust (on or off) each relay.