Dwyer CRF2-WR01T-048-M20 Series CRF2 Capacitive Level Transmitter
The Series CRF2 Capacitive Level Transmitter provides a 2-wire 4-20 mA output to indicate level of liquids, powders and bulk materials. 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.
BENEFITS/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 custom 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
APPLICATIONS
- Pulp and paper processing
- Food and beverage
- Plastics
SPECIFICATIONS
- 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).
- Power Requirements: 12-35 VDC.
- Output Signal: 4-20 mA or 20-4 mA, 2-wire.
- Response Time: 0.5 s.
- Electrical Connection: Screw terminal.
- Conduit Connection: 1/2˝ NPT female.
- Process Connection:
- Standard: 3/4˝ NPT male;
- Optional: See model chart.
- Enclosure Rating: NEMA 4X (IP66) weather tight/corrosion-resistant.
- Spark/Static Protection: 106 Ω dissipation resistance with a spark gap. Surge current to 100 A max.
- Calibration: Zero, span, 4 mA, 20 mA.
- Mounting Orientation: Vertical.
- Weight: 6´ rod type: 3.6 lb (1.63 kg).
DIMENSION
MODEL CHART
| MODEL CHART | ||||||||
| Example | CRF2 | -W | R | 0 | 1T | -048 | -M20 | CRF2-WR01T-048-M20 |
| Series | CRF2 | Capacitive level transmitter | ||||||
| Enclosure | W R | WeatherproofRemote mount weatherproof housing | ||||||
| Probe Type | R C | Rod Cable | ||||||
| Ground | 0A
U |
None includedAttached ground rod (3˝ or 4˝ flange process connection types only) Unattached ground rod | ||||||
| Process Connection | 1T2T
3T 1B 2B 3B 1S 2S 3S 1F 2F 3F 4F 5F 6F |
3/4˝ NPT male 1˝ NPT male1-1/2˝ NPT male 3/4˝ BSPT
1˝ BSPT 1-1/2˝ BSPT 1˝ sanitary clamp 1-1/2˝ sanitary clamp 2˝ sanitary clamp 2˝ 150# flange, 316 SS 2˝ 150# flange, PVC 3˝ 150# flange, 316 SS 3˝ 150# flange, PVC 4˝ 150# flange, 316 SS 4˝ 150# flange, PVC |
||||||
| Probe Length | XXX | Insertion length in inches. Example 048 is 48˝ length. Rod type min: 24˝, max: 144˝; Cable type min: 24˝, max: 360˝ | ||||||
| Options | M20 | M20 conduit connection with cable gland | ||||||
| Examples: CRF2-WR01T-072; CRF2-WR01T-096 | ||||||||
DWYER INSTRUMENTS, LLC | dwyer-inst.com.
Documents / Resources
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Dwyer CRF2-WR01T-048-M20 Series CRF2 Capacitive Level Transmitter [pdf] Installation Guide CRF2-WR01T-048-M20 Series CRF2 Capacitive Level Transmitter, CRF2-WR01T-048-M20, Series CRF2 Capacitive Level Transmitter, Capacitive Level Transmitter, Level Transmitter |
