Measurement Setup - Pipes - Vega VEGAPULS 61 Operating Instructions Manual

4 Mounting
Foam generation
Measurement in a surge
pipe
20
Fig. 15: Agitators
Through the action of filling, stirring and other processes in the vessel,
compact foam can form on the product surface, damping the emitted
signals considerably.
If foams are causing measurement errors, the biggest possible radar
antennas, the electronics with increased sensitivity or low frequency
radar sensors (C band) should be used.
As an alternative, sensors with guided microwave can be used. These
are unaffected by foam generation and are best suited for such ap-
plications.
4.5

Measurement setup - Pipes

By using a surge pipe in the vessel, the influence of vessel installa-
tions and turbulence can be excluded. Under these prerequisites, the
measurement of products with low dielectric values (ε
possible.
Note the following illustrations and instructions for measurement in a
surge pipe.
Information:
Measurement in a surge pipe is not recommended for extremely
adhesive products.
VEGAPULS 61 • Modbus and Levelmaster protocol
value ≤ 1.6) is
r