Low Velocity Paddlewheel Flow Meter

The FP-5600 and FP8500A series low flow sensors are high resolution, low power devices ideal for measuring flow in piping systems with extremely low velocities. Utilizing insertion paddlewheel technology, these sensors are easy to install and maintain. They incorporate state-of-the-art, advanced Hall-effect design, allowing them to operate with a wide range of voltages and current supplies. The sensors have a wide flow range and reverse polarity protection. The insertion design easily adapts to a wide range of applications.

Flow Range

Pipe Size

½"

¾"

1"

1¼"

1½"

2"

2½"

3"

4"

5"

6"

8"

10"

12"

Range (gpm)

0.3 to 19

0.5 to 34

0.8 to 54

1.4 to 94

1.9 to 127

3.2 to 210

4.5 to 300

7.0 to 461

12 to 794

19 to 1247

27 to 1801

47 to 3119

74 to 4915

105 to 6977

SPECIFICATIONS
Output Signal: Open collector, sinking
Output Frequency: 15 Hz per fps nominal
Operating Range: 0.3 to 20 fps
Pressure/Temperature:
    PP sensor housing: 180 psi @ 20°C (68°F), 25 psi @ 85°C (185°F)
    PVDF sensor housing: 200 psi @ 20°C (68°F), 25 psi @ 85°C (185°F)
Power Requirements: 3.3 to 24 Vdc <1.5 mA @ 3.3V to 6 Vdc, <20 mA @ 6V to 24 Vdc
Pipe Size Range: 0.5 to 24"
Repeatability: ±0.5% of full range
Linearity: ±1% of full range
Materials: Refer to ordering information for material options available
O-rings: FKM
Cable Type: Twisted pair, foil shield with drain wire
Cable Length: 7.6 m (25'); 300 m (1000') max