CRFO & CRFA Rotor Flow Indicator & Transmitter
Pulse or Voltage Output, Flow rates from 0.1 GPM to 60 GPM, 0.25" to 1.0" PipeDESCRIPTION
CFR0 flow transmitters combine visual confirmation of flow with a pulse or conditioned 0-10 V output proportional to flow rate. As liquid passes through the meter body, a magnetic rotor spins at a rate proportional to flow. This causes a series of magnetic fields (the rotor vanes) to excite a hall effect sensor, producing a series of voltage pulses. The output pulses (CRFO) are at the same voltage level as the input (4.5 - 24 VDC) with a frequency proportional to the flow rate. The output signal can be utilized by digital rate meters, totalizers, or other electronic controllers. CRFA Type analog sensors condition the output signal to 0-10 VDC.
Typical applications include water purification/dispensing systems, chemical metering equipment, lasers and welders, water injection systems, semiconductor processing equipment, chillers and heat exchangers.
Click here for information on our other transmitters.
SPECIFICATIONS
Wetted Body Materials: Brass, 316 Stainless Steel or Polypropylene
(Hydrolytically Stable, Glass Reinforced)
Rotor Pin: Ceramic
Rotor: PPS Composite, Black
Lens: Polysulfone
O-Ring: Viton® (Alloy Bodies); Buna-N (Polypropylene Body)
Low Flow Adaptor: Glass Reinforced Polypropylene
Max. Operating Pressure:
Brass or Stainless Steel: 200 PSIG @ 70°F, 100 PSIG Max. @ 212°F
Polypropylene: 100 PSIG @ 70°F, 40 PSI Max. @180°F
Operating Temperature:
Brass or Stainless Steel: 20°F to 212°F (-29°C to100°C)
Polypropylene: 20°F to 180°F (-29°C to 82°C)
Electronics: 150°F (65°C)
Ambient Viscosity: Maximum 200 SSU
| Pulse Output | Voltage Output | |
| Input Power | 4.5-24 VDC | 24 VDC ±10% |
| Output Signal | 4.5-24 VDC Pulse Pulse rate dependent on flow rate, port size & range. | 0-10 VDC @1 mA max. |
| Frequency Output Range |
15 Hz (low
flow) to 225 Hz (high flow) Pulses per gallon information provided with models |
- |
| Current Consumption | 8 mA, no load | 25 mA |
| Current Source Output, Max. | 70 mA | 70 mA |
| Accuracy | See Order Table | See Order Table |
Electrical Termination: 22 AWG PVC-Jacketed, 24" Cable. Color Codes: Red = +VDC, Black = Ground, White = Signal Output
Units may be mounted with flow entering either port. Performance is
optimized by positioning ports at the top of the unit, in a horizontal plane.
ORDERING INFORMATION
EXAMPLE: C156262
| FOR YOUR CONVENIENCE, THESE ITEMS ARE AVAILABLE ONLINE OR PLEASE CALL 1-800-253-2497 TO ORDER THESE ITEMS |
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| Body Material | Port Size NPT | Low Range* (Accuracy) | Standard Range (Accuracy) | Pulse Output Part Number | Low Range Voltage Output Part Number | High Range Voltage Output Part Number |
| Polypropylene | 1/4" | 0.1 to 1.0 (±7.0%) | 0.5 to 5.0 (±7.0%) | C155421 | C170290 | C170280 |
| 1/2" | 1.5 to 12.0 (±7.0%) | 4.0 to 20.0 (±15.0%) | C155481 | C170291 | C170281 | |
| Brass | 1/4" | 0.1 to 1.0 (±7.0%) | 0.5 to 5.0 (±7.0%) | C156261 | C170292 | C170282 |
| 1/2" | 1.5 to 12.0 (±7.0%) | 4.0 to 20.0 (±15.0%) | C156262 | C170293 | C170283 | |
| 3/4" | - | 5.0 to 30.0 (±10.0%) | C194761 | - | C180407 | |
| 1" | - | 8.0 to 60.0 (±15.0%) | C194762 | - | C182098 | |
| Stainless Steel | 9/16-18** | 0.1 to 1.0 (±7.0%) | 0.5 to 5.0 (±7.0%) | C165071 | C170295 | C170285 |
| 1/2" | 1.5 to 12.0 (±7.0%) | 4.0 to 20.0 (±15.0%) | C165075 | C170296 | C170286 | |
| 3/4" | - | 5.0 to 30.0 (±10.0%) | C194763 | - | C182097 | |
| 1" | - | 8.0 to 60.0 (±15.0%) | C194764 | - | C182099 | |
| * Use with low flow adaptor supplied | ||||||
| **Straight thread with O-ring | ||||||
 Model CM103 Rate Meter/Totalizer FOR PULSE OUTPUT TRANSMITTERS ONLY |  |
| FOR YOUR CONVENIENCE, THESE ITEMS ARE
AVAILABLE ONLINE OR PLEASE CALL 1-800-253-2497 TO ORDER |
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| Model Number | Description | |
| CM103-005 | Rate Meter/Totalizer FOR PULSE OUTPUT TRANSMITTERS ONLY |
Supply Voltage: 1 or 2 lithium batteries and/or 10-28 VDC |
| Panel Cutout: 68 mm x 33 mm | ||
| Easy to read 8-digit supertwist LCD (4-digit, with legend for rate) with backlighting capability | ||
| Simple menu-driven setup | ||
| NEMA 4X rated front panel for use in wash down environments | ||
| Independent scale factors for total, rate and pulsed output | ||
| 3 volt lithium battery (1 or 2) provides long life and eliminates the need for external power. | ||
| For backlighting or powering the output also order the CM103 power module option. | ||
| CMA10312 | Optional Power Module | Uses 115/230 VAC, 50/60 Hz supply voltage |
| Powers M103 Backlight feature | ||
| 10-28 VDC output powers CRFO & CRFA or CFT-110 Flow rate sensor | ||
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