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SF800 - Low Pressure Flow Meter
The patented SF800 is an all purpose flow meter with an excellent price-performance ratio. It is suitable for a wide range of applications and large variety of fluids, and covers flow velocities of 0.5 to 20 liter per minute at temperatures of -20 to +90°C and an operating pressure of 16 bar (max 40 bar).
The SF800 is entirely made of high-quality plastics and composites with great chemical and thermal resilience. The housing is made of PVDF, a high grade PVC, while the internal rotor of only 0.04 gram is made of Vectra, a liquid crystal polymer of very low weight. Both material are not susceptible to limescale.
An integrated PCB emits the infrared signal, which is interrupted by the three blades of the rotor. SMD components transform the interrupted signal into a pulse.
SF800 Low Pressure Flow Meter Specifications
| Range | |
| Flow velocity*: | 0.5 ~ 20 litre per minute |
| Temperature: | -20 ~ +90 °C |
| Operating pressure: | 16 bar |
| Max. pressure: | 40 bar |
| Technical information SF-800 | |
| Process connections: | 3/8" hose barb; 3/8”BSP Male |
| Exitation: | 5 to 24 VDC, 12 to 24 mA |
| Power consumption: | 12 - 36 mA/s |
| Material: | PVDF, Vectra (rotor), Viton or EPDM |
| Output: | frequency |
| Output frequency: | 100 to 2000 Hz (depending on the flow velocity) |
| K-factor: | 6100 pulse/liter to 5400 pulse/liter |
| Length cable: | 15 cm standard (different length on request) |
| Connector electronics: | 3-wire flat cable sealed in housing (jack-plug or molex connector on request) |
| Reliability | |
| Interchangeability**: | +/- 2.25 % |
| Accuracy: | +/- 1.00 % |
| Reproducibility: | +/- 0.30 % |
| Medium | |
| Medium type: | clear or translucent liquids that do not block infrared light |
| Viscosity: | 1-1000 Cst |
| Examples: | water, chemicals, oil, beer, syrup |
* Other ranges available upon request
** Upon request, interchangeability can be less then 1%
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