Official SF800 FAQ

[Jedda]

Here is a translation of the german efficiencyguru's article on flowmeters, including the SF800.


Working Principle

The geometry of the rotorhousing (causing a radial flow in) in combination with the light-weight Vectra rotor (0,04 grams) makes the rotor float in the medium. Because the rotor floats, the measurement process is nearly resistance-free, guaranteeing high accuracy, durability and linearity .

An integrated PCB emits an infrared signal, which is interrupted by the three blades of the rotor. SMD components interrupted transform the signal into a pulse. Because of the construction of the rotorhousing, the Swissflow flow sensors are practically insensible to high pressure.

The materials used (PVDF and Vectra) are to a great extent chemical-resistant and temperature-durable . Contrary to many other fluid flow measurement systems, the Swissflow sensors do not have to be calibrated .