SBx4xx
Mechatronic flow sensor
6
4 Function
The unit detects the flow according to the principle of differential pressure by means of a permanent
magnet and a measuring cell.
4.1 Analogue output
I [mA]
20
4
0
MEW Q [l/min]
0
Fig. 1: Analogue output (water 20
°C)
The analogue signal for water is linear from 4 mA (= no flow) to 20 mA
(= final value of the measuring range, VMR).
If the measured value is above the final value of the measuring range, a
current signal of > 20 mA is output.
