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EIP - Model RF -Capacitance Level Switch for Point Level Detection
The RF Capacitance Level Switch is engineered for precise point level detection in applications involving solids, liquids, and slurry materials stored in tanks and vessels. The device's electronics feature an oscillator, detector, and output relay, ensuring accurate and reliable high or low level information. The probe consists of an active section and a shield section, insulated from each other to prevent false readings from material build-up, a common issue with conventional sensors. Sensing changes as minute as 0.5 pF in capacitance, the probe detects material presence or absence with interference-free operation, simple calibration, and fail-safe functionality, proving reliable in challenging materials such as dusty or sticky substances. Supporting Class II hazardous locations, various probe models and extensions are available to accommodate diverse applications, including bins, chutes, and conveyors in industries like petrochemical, cement, and pharmaceuticals.
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