SERIES CRF2

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Dwyer Series CRF2 Capacitive Level Transmitter | 4-20mA RF Admittance Sensor

DWYER SERIES CRF2 CAPACITIVE LEVEL TRANSMITTER

A state-of-the-art, two-wire capacitive level transmitter providing a continuous 4–20 mA output for liquids, powders, and bulk materials.

The Series CRF2 is a level transmitter providing a two-wire 4 to 20 mA output to indicate level of liquids, powders and bulk materials. State of the art sensing technology in the CRF2, using impulse RF admittance measurement provides excellent accuracy and stability.

The CRF2 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.

DWYER SERIES CRF2 CAPACITIVE LEVEL TRANSMITTER
The Series CRF2  utilizes advanced impulse RF admittance technology to provide high accuracy and stability in level measurement. It operates by sensing capacitance changes between the probe and the tank wall as material height varies.
This technology is highly immune to external RF interference from devices like cell phones or walkie-talkies. Featuring easy push-button calibration for zero and span, the CRF2  is available with rigid or flexible probes and can be custom-ordered to any length required for specific industrial applications.

PRODUCT USES:

  • Pulp and paper processing
  • Food and beverage
  • Plastics
  • Continuous level indication in bins, hoppers, or small silos.
  • Monitoring of liquids, powders, and dry bulk materials.
  • Target Industries: Pulp and paper processing, food and beverage, aggregates, plastics, and mining.
  • Corrosive media applications (utilizing the FEP-covered probe).

Technical Sheets

Instruction Manual

Catalog Page

Specifications

DWYER SERIES CRF2 CAPACITIVE LEVEL TRANSMITTER – KEY SPECIFICATIONS

  • Output: 4 to 20 mA or 20 to 4 mA, 2-wire.
  • Accuracy: ±0.5 pF or ±0.25% of span.
  • Pressure Limit: 100 psi (6.9 bar).
  • Temperature Limits: Ambient: -40 to 185°F; Process: -40 to 250°F.
  • Enclosure: NEMA 4X (IP66).

 

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