RF Capacitance Level Switch

Industry served

  • Power Plant
  • Coal & Ore Mines
  • Steel Plant
  • Paper & Pulp
  • Petrochemicals
  • Fertilizers Plant
  • Pharmaceutical
  • Chemical Plant
  • Cement Plant
  • Water & Wastewater
RF / Capacitance Level Switch

RF Capacitance Level Switch is designed to provide accurate and reliable point level (High and Low Level) information of Solids (Powders and Lumps), Liquids and Slurry stored in vessels and tanks. The electronics consist of an oscillator,adetector and an output relay which is controlled by the detector.The probe contains an active section and a shield section insulated from each other and from the vessel ground. Most conventional sensors give a false indication when coated due to build up. EIP Level Sensors are designed to ignore any such build-up or coating

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The standard RF capacitance probes detect the presence or absence of material in contact with the probe by sensing minute changes (as low as 0.5 pF) in capacitance caused by the difference in the dielectric constant of the material versus the air. They feature interference-free operation, simple calibration, and fail-safe functionality and perform accurately even in dusty, sticky, or clinging materials. Class II hazardous location ratings and a wide assortment of probes and extensions make these point-level capacitance probes appropriate for a variety of solid, liquid, and slurry materials. 

  • Point level detection and process control for solid, liquid and slurry materials

  • Used in bins, vessels, tanks, chutes and conveyors

  • Plastics, chemicals, coal/fly ash, concrete, food ingredients, pharmaceuticals, feed, grain, mining, foundries, wood or paper processing, many other materials

Remote Unit:

Seperate Electronic Controller and probe with interconnecting cable  ( with High/Low Level Alarm)

Integral Unit:

Electronics and Probe as a single unit (with High/Low Level Alarm)

Multi Set Point Unit:

Remote or Integral Unit with a 2 or 3 Set points for linearly grading the tank based on set points. 

Digital Display Type Level Switch:

Remote Digital Display Unit providing a LED Display and Keypad for calibration replacing the potentiometer for the purpose. Allows easy setting, calibration result can be quantified and troubleshooting becomes easy

Preferred Applications: Solids, Liquids and Slurries

Sizes of probbes: Refer Catalogue

Process Temperatures: -40°to +650°C

Process Pressure: -0.2 – 10 bar

Signal Output: 2 SPDT or 1 DPDT

Supply Voltage: 24 VDC/ 110 VAC/ 230 VAC

Power Consumption: Max 3 W @ 24 VDC

Hazardous Locations: Explosion Proof and Intrinsically Safe

  • RF Level Switch Catalogue Model 550 – Click here to download
  • Digital RF Level Switch for ESP Hopper Level Measurement – Click here to download