TECHNICAL DATA
4
15
OPTIFLUX 1000
www.krohne.com
10/2011 - 7309832300 - QS OPTIFLUX 1000 R03 en
4.1 Measuring principle
An electrically conductive fluid flows inside an electrically insulated pipe through a magnetic
field. This magnetic field is generated by a current, flowing through a pair of field coils. Inside of
the fluid, a voltage U is generated:
U = v * k * B * D
U = v * k * B * D
U = v * k * B * D
U = v * k * B * D
in which:
v = mean flow velocity
k = factor correcting for geometry
B = magnetic field strength
D = inner diameter of flow meter
The signal voltage U is picked off by electrodes and is proportional to the mean flow velocity v
and thus the flow rate q. A signal converter is used to amplify the signal voltage, filter it and
convert it into signals for totalising, recording and output processing.
1
Induced voltage (proportional to flow velocity)
2
Electrodes
3
Magnetic field
4
Field coils
