Vega VEGAPULS 43 Profibus PA Bedienungsanleitung PDF herunterladen (Seite 25)

VEGAPULS 43 – Profibus PA 25

Direct sensor vertically to the product surface

Correct Incorrect

Ladder

Wrong orientation to the product

Weak measuring signals are generated if the

sensor is not directly pointed at the product

surface. Orient the sensor axis perpendicu-

larly to the product surface to achieve opti-

mum measuring results.

3.5 Common installation mistakes

Socket piece too long

If the sensor is mounted in a socket exten-

sion that is too long, strong false echoes

arise which interfere with the measurement.

Make sure that the horn antenna projects out

of the socket piece.

Flange antenna: Correct and unfavourable socket

length

75 %

0 %

100 %

Strong product movements

Strong turbulence in the vessel, e.g. caused

by powerful stirrers or strong chemical reac-

tions, can seriously interfere with the meas-

urement. A surge or bypass tube (see

illustration) of sufficient size always enables

reliable and problem-free measurement even

if strong turbulence occurs in the vessel,

provided there is no product buildup in the

tube.

Mounting and installation

Correct Incorrect

Correct

Unfavourable

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Vega VEGAPULS 43 Profibus PA Bedienungsanleitung Seite 25