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Model CRF - Continuous Level Transmitter

Loop-Powered, 4-20 mA Output, RF Admittance Technology
 
Continuously monitor the level of liquids and slurries, without worry of false signals as a result of material build-up. Loop powered Series CRF delivers a 4-20 mA isolated output signal proportional to the height of material in a tank or holding vessel. Continuous level transmitter can be field calibrated to fit your specific application. Integral electronics and two-wire design simplify installation. Probes should be mounted vertically and are easily trimmed to shorter lengths where required. When mounting in nonmetallic or horizontal tanks, a separate grounding rod must be used. Consult factory regarding mounting flange, grounding rod assemblies, optional pressure rating, longer lengths and sanitary connection. See Dimensions
 
SPECIFICATIONS
Service: Compatible liquids.
Wetted Materials:
Connection: 316 SS.
Probe: Teflon®.
Accuracy: ±0.1% of full range repeatability, ±0.3% of full range linearity.
Temperature Limits: Probe: -40 to 250°F (-40 to 121°C), Electronics: -10 to 180°F (-23 to 82°C).
Pressure Limit: 100 psig (6.89 bar).
Output Signal: 4-20 mA, 2-wire.
Zero and Span Adjustments: Zero: 0 to 500 pF, Span: 25 to 2200 pF.
Loop Resistance: 600 Ohms @ 24 VDC.
Current Consumption: 0.6 VA.
Electrical Connections: Screw terminal.
Conduit Connection: 1/2" female NPT.
Process Connection: 3/4" male NPT standard. Optional 2", 3" or 4" 150# flange in 316 SS or PVC, 1-1/2" or 2" sanitary clamp connection.
Enclosure Rating: Weatherproof and explosion-proof, NEMA 4, 7, and 9. Class I, Div. 1 & 2, Groups B, C & D; Class II, Div. 1 & 2, Groups E, F & G.
Mounting Orientation: Vertically mounted.
Weight: 6 ft probe model is 7.25 lb (2.39 kg).
Probe Length: Rigid Rod: 12" (304.8 mm) to 144" (3.66 m). Flexible Cable with Weight: 24" (609.6 mm) to 240" (6.096 m).
Options: Flange mount assemblies with reference rod, flexible cable probe, optional connections listed under process connection.
 
APPLICATIONS
Alcohols, wastewater, oils, polymers, acids, caustics, pulp, slurries, wood chips, water-based products in tanks, bins, or other vessels.
 
POPULAR MODELS
Model
Number
Probe Length
 CRF-TR0-34T-072  Teflon® coated 316 SS probe  6 ft (1.83 m)
 CRF-TR0-34T-096  Teflon® coated 316 SS probe,  8 ft (2.44 m)