DURAG D-FL 200 - (Fig. 3) Consideration of the Flow Profiles; (Fig. 4) Measurement Independent of the Flow Profile (Optional)

D-FL 200 / Rev. 6 4
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Industrie Elektronik GmbH & Co KG
(Fig. 3) Consideration of the flow profiles
(Fig. 4) Measurement independent of the flow profile (optional)
As shown in (Fig. 4) Measurement independent of the flow profile (optional) the measuring planes
must be arranged at a distance of r = 0.5774*R from the pipe axis. The correction factor is k=1.
The volumetric flow is determined using four ultrasonic transducers in two planes:
QkA
(v1 v2)
2
=⋅⋅
+
Equation 7
If only two ultrasonic transducers are used in a plane offset from the pipe axis, the volumetric flow is
determined as follows:
QkAv1
=⋅⋅
Equation 8