Dwyer CRF2 Series Offers

Features

• Senses capacitance changes resulting from the height of the material in the tank between the probe and the tank wall
• In non-metallic tanks or tanks that do not have the wall parallel to the probe a ground reference must be used
• Comes with either a rigid or flexible probe depending on application installation need and probe length required
• Features an easy push button calibration of zero and span
• Custom order to any length probe that you need for your application
• FEP covered probe is ideal for use with corrosive media
• This technology also provides immunity to external RF sources like walkie-talkies and cell phones as well as minimal interference with radio communication or other electronic systems

• Service: Liquids, powders, and bulk materials compatible with wetted materials
• Wetted Materials: Standard: rod/cable: FEP; connection: 316 SS. Ground Option: rod/cable and connection: 316 SS; cable spacers: PVC. Flange Option: material of flange
• Capacitance Range: 0 to 2000 pF
• Sensitivity: 0.15 pF
• Minimum Span: 8 pF
• Accuracy: ±0.5 pF or ±0.25% of span, whichever is greater
• Repeatability: ±0.25 pF or ±0.1% of span, whichever is greater
• Temperature Limits: Ambient: -40 to 185°F (-40 to 85°C)
• Process: -40 to 250°F (-40 to 121°C)
• Pressure Limit: 100 psi (6.9 bar)
• Output Signal: 4 to 20 mA or 20 to 4 mA, 2 wire
• Response Time: 0.5 seconds
• Electrical Connection: Screw terminal
• Conduit Connection: 1/2" NPT female
• Process Connection: Standard: 3/4" NPT male. Optional: See Catalog page
• Enclosure Rating: NEMA 4X (IP66) weather-tight/corrosion resistant
• Spark/Static Protection: 106 ohm dissipation resistance with spark gap. Surge current to 100A max
• Calibration: Zero, Span, 4 mA, 20 mA
• Mounting Orientation: Vertical

• Power Requirements: 12 to 35 VDC
• Weight: 6 ft rod type: 3.6 lb (1.63 kg)