SLFSI-TXX Flow Sensor Technical Specifications

 FEATURES

•  Molded Mounting Tee for improved control of dimensions for more consistent measurement and improved performance at low flow.
•  Threaded Retaining Nut instead of retaining pin makes it easier to service in a valve box, more moisture resistance for electronics resulting in longer life.
•  Unique 4 bladed lightweight impeller measures lower flow rates. Detects flow as low as 20% of published minimum rate of other impeller sensors
•  Smart electronics detection system contains a micro-processor for better signal filtering and conditioning. Detection circuit also contains superior over-voltage and overcurrent protection.

Professional Materials

•  Impeller – HDPE (High Density Polyethylene
•  Shaft – Tungsten Carbide
•  O-ring — Buna-N
•  Saddle, Sensor Housing, Retaining Nut — Type 1 PVC

Pressure Rating

•  150 PSI @ 90 degrees F

Temperature Range

•  32 degrees F to 140 degrees F (0 degrees to 60 degrees C)

Output Signal

•  Frequency Range: 0.3 Hz to 200 Hz
•  Output Pulse: 5 ms +/-25%

Transducer Performance

•  Quiescent current: 600 uA@8 VDC to 35 VDC max.
•  Quiescent voltage: (VHigh) = Supply Voltage – (600uA X Supply Impedance)
•  On State: (VLow) = Max. 1.2 VDC@50mA current limit, (10Ω +0.7VDC)

Flow Range

•  0.25 to 15 FPS
•  1 inch tee: 0.86 to 52 GPM
•  1 1/2 inch tee: 1.8 to 108 GPM
•  2 inch tee: 2.8 to 170 GPM

Electrical Cable

•  2 single conductor solid copper U.L. listed #18 AWG leads with direct burial insulation
•  Lead length: 48 inches
•  Wiring may be extended up to 2,000 feet with direct burial, twisted pair shielded cable