BinMaster’s capacitance sensors are used for high and low level detection in bins, silos, tanks, hoppers, chutes and other vessels used for material storage or process manufacturing. They operate by detecting 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. Class II hazardous location ratings and a wide assortment of probes and extensions make these capacitance probes appropriate for a variety of solid, liquid and slurry materials.

BinMaster PROCAP I and II capacitance probes provide interference-free operation – working far below the RF level of 9 KHz at just 6 KHz. – and will not interfere with two-way radios or other equipment operating in the radio spectrum. They feature simple “quick set” calibration and fail-safe operation including a visual LED to indicate the sensor status. Accurate level detection is assured even in dusty, sticky or clinging materials by the PRO-Shield feature which compensates for material build up on the sensing probe. It also provides fail-safe protection in the event of a power failure as well as an adjustable time delay to help prevent false readings.

Features:
• “Quick-Set” simple calibration
• Triple thread screw-off cover
• Dual conduit entrance
• Unsurpassed sensitivity 0.5 pF
• PRO-Shield compensates for material buildup
• Operates below RF range, temperature stable calibration and protection from RF interference
• Fail-safe, switch selectable high/low
• Adjustable time delay to 30 seconds
• Optional sensing probes: Delrin or Teflon sleeved, bare, food grade, flush mount, solid and flexible extensions
• Visual LED indicates sensor status: uncovered, covered or power failure

Specifications:
• PROCAP I Power Requirements: Universal power supply 24 to 240 VAC/VDC
• PROCAP II Power Requirements: Selectable 115/230 VAC
• Output Relay: DPDT 10 Amp at 250 VAC
• Ambient Temp: -40°F to +185°F (-40°C to +85°C)
• Process Temp: To 250°F Delrin/Bare probe (121°C); to 500°F Teflon probe (260°C)
• Pressure: 500 PSI
• Approvals & Certifications: Listed for Class II, Groups E, F & G
• Hazardous Locations Enclosure Type: NEMA 4X, 5, 9 & 12
• Housing Enclosure: Die cast aluminum, USDA approved powder coat finish
• Mounting: 1-1/4” NPT or 3/4” NPT 316 SS standard; 1-1/4” NPT 316 SS & sanitary flange optional

Applications:
• 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