SpecificationsSF4/1 Flow Meter Underwater Measurement
Based on water20ºC (68.0º F)
Flow range1,0 – 18L/min (0,25–4,75 GPM)
Accuracy< 2%
Repeatability < 0.5% measured value
K factor (water)(830) pulse/Liter
Max. pressure at 20°C.... bar (....MPa)
With extra housing till..... bar. Maximum 20°C/(86°F)
Liquid temperature -20 to +85°C (-4 to +185°F)
Viscosity(0.8 – 10)cSt. More possibilities see Specific Gravity and Hollow Balls
Inner diameter12mm (0,47”)
Flow meter length39mm (1,3”)
Materials Flow MeterGrilamid TR55
Materials BallPP-Polypropeen
Connection3/8” BSP Male or Hose-barb connection shaft Ø12,5mm x 13,5mm
Electrical SystemFiber Optic Sensors Reflective
OutputNPN output
Control OutputNPN open-collector 100 mA max. (40 V max.), Residual voltage 1 V max.
Stability outputNPN open-collector 50 mA max. (40 V max.), Residual voltage 1 V max.
Power voltage12 to 24 VDC ±10 %, Ripple (P-P) 10 % or less
More information about Fiber Optic Sensor Reflective go to Infrared Reflection Optical fiber