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Digital Paddlewheel Meters
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High Accuracy Digital Paddlewheel Technology |
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Pipe Sizes from 3/8 to 2" |
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Tamper Proof Factory Programming |
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Easy to Read 6-Digit LCD Display, Up to 4 Decimal Places |
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Battery Operated (2 "AAA" Batteries Included) |
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Very Low Pressure Drop |
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Total Reset Function Can be Disabled |
The FP2000 Series is designed to measure the flow of a fluid in a pipe. The meter is factory calibrated to any engineering units and displays the rate of flow, total or both (depending on the model selected) on a 6-digit LCD display. Two “AAA” batteries power the unit for up to one year. There are three models available: FP2000-R is a rate meter designed to measure and display the rate of flow; FP2000-T is a totalizer meter designed to measure and display the total flow; FP2000-RT is a rate/totalizer meter designed to measure and display both the rate of flow and the total flow.
Measuring accuracy requires a fully developed turbulent flow profile. Pulsating, swirling and other disruptions in the flow stream will affect accuracy. Flow conditions with a Reynolds Number greater than 4000 will result in a fully developed turbulent flow. A Reynolds Number less than 2000 is laminar flow and may result in inaccurate readings.
Reynolds Number Equation:
Reynolds Number=(3160 x Q x G)/(D x V)
Where:
Q = Flow rate of the fluid in GPM
G = Specific gravity of the fluid
D = Pipe inside diameter in inches
V = Fluid viscocity in centepoise
Minimum Straight Pipe Length Requirements
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The meter’s accuracy is affected by disturbances such as pumps, elbows, tees, valves, etc., in the flow stream. Install the meter in a straight run of pipe as far as possible from any disturbances. The distance required for accuracy will depend on the type of disturbance. |
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Disturbance Type |
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Inlet Pipe Length |
Min
Outlet Pipe Length |
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Flange |
10x pipe ID |
5x pipe ID |
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Reducer |
15x pipe ID |
5x pipe ID |
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90° Elbow |
20x pipe ID |
5x pipe ID |
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Two Elbows-1 Direction |
25x pipe ID |
5x pipe ID |
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Two Elbows-2 Directions |
40x pipe ID |
5x pipe ID |
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Pump or Gate Valves |
50x pipe ID |
5x pipe ID |
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SPECIFICATIONS
Max Working Pressure: 20 bar (300 psi) at 21°C (70°F)
Max Fluid Temperature: 93°C (200°F) at 0 psi
Max Ambient Temperature: -10 to 43°C (14 to 110°F)
Full Scale Accuracy: ±2%
Power Requirement: 2 "AAA" batteries (included)
Enclosure: NEMA 4X (IP56)
Maximum Pressure Drop: 0.6 BAR (8 psi) (varies per model)
Approximate Shipping Wt: 0.91 kg (2 lb)
Materials of Construction
Pipe Fitting: Polypropylene (FP2000 series) or PVDF (FP2100 series)
Sensor, Paddlewheel, Axle: PVDF
Sensor O-ring seals: FKM
Enclosure: ABS
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