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Technical Specs – SLFSI-SXX Flow Sensor.pdf	Download

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 12 FPS
• 3-inch saddle: 6 to 300 GPM
• 4-inch saddle: 10 to 480 GPM
• 6-inch saddle: 45 to 1100 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