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Series CRF2 Capacitive Level Transmitter

Brand: Dwyer Instruments, LLC

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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.

The CRF2 comes with either a rigid or flexible probe depending on application installation need and probe length required. Featured in the CRF2 is easy push button calibration of zero and span.

Custom order the CRF2 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.
Features
  • State of the art Sensing Technology, uses impulse RF admittance measurement which provides excellent accuracy and stability
  • Comes with either a rigid or flexible probe depending on application installation need and probe length required
  • Easy push button calibration of zero and span
  • Any length probe can be customer ordered for any specific application
  • FEP covered probe is ideal for use with corrosive media
  • Immune to external RF sources like walkie-talkies and cell phones as well as minimal interference with radio communication or other electronic systems
show more
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.

The CRF2 comes with either a rigid or flexible probe depending on application installation need and probe length required. Featured in the CRF2 is easy push button calibration of zero and span.

Custom order the CRF2 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.
Features
  • State of the art Sensing Technology, uses impulse RF admittance measurement which provides excellent accuracy and stability
  • Comes with either a rigid or flexible probe depending on application installation need and probe length required
  • Easy push button calibration of zero and span
  • Any length probe can be customer ordered for any specific application
  • FEP covered probe is ideal for use with corrosive media
  • Immune to external RF sources like walkie-talkies and cell phones as well as minimal interference with radio communication or other electronic systems

Specifications

Accuracy

  • ± 0.25 % of Span
  • ± 0.5 PF

Ambient Temperature Range

  • -40° to 85° C (-40° to 185° F)

BSP Connection

  • 1" BSPT Male
  • 1-1/2" BSPT Male
  • 3/4" BSPT Male

Cable Material

  • FEP
  • PVC

Calibration

  • 20 mA
  • 4 mA

Conduit Connection

  • 1/2" NPT Female
  • M20

Connection Material

  • 316 Stainless Steel

Electrical Connectors

  • Screw Terminal

Environmental Protection

  • Corrosion Resistant Material
  • IP66
  • NEMA 4X
  • Weatherproof

Flange Material

  • 316 Stainless Steel
  • PVC

Flange Size - 2" (DN 50)

  • 2" (DN 50) - 150#

Flange Size - 3" (DN 80)

  • 3" (DN 80) - 150#

Flange Size - 4" (DN 100)

  • 4" (DN 100) - 150#

Insertion 'U' Length

  • 144" (366 cm) - Rod Typical, Maximum
  • 24" (60.9 cm) - Rod Typical, Cable Typical Minimum
  • 360" (914 cm) - Cable Typical, Maximum

Media

  • Liquids & Gases

Mounting

  • Remote Mounting

NPT Connection

  • 1" NPT Male
  • 1-1/2" NPT Male
  • 3/4" NPT Male

Output

  • 4-20 mA, 2-Wire

Power Requirement

  • 12-35 Vdc

Pressure Range

  • bar: 0 to 6.89
  • kPa: 0 to 689
  • psi: 0 to 100

Process Temperature

  • -40° to 121° C (-40° to 250° F)

Response Time

  • 0.5 second

Sensitivity

  • 0.15 PF

Sensor Orientation

  • Vertical

Span - Minimum

  • 8 PF

Tri-Clamp Connection

  • 1" Sanitary Clamp
  • 1-1/2" Sanitary Clamp
  • 2" Sanitary Clamp

Wetted Materials

  • FEP

Typical Applications

  • Pulp and Paper Processing
  • Chemical Processing
  • Food and Beverage
  • Aggregates
  • Plastics
  • Mining