VEGA VEGAPULS 61 (≥ 2.0.0 - ≥ 4.0.0) Profibus PA - Manual (Page 22)

22
4 Mounting
VEGAPULS 61 • Profibus PA
36501-EN-121011
When using a surge pipe in a vessel, influences from vessel installa-
tions and turbulences can be excluded. Under these prerequisites,
the measurement of products with low dielectric values (ε
r
value
≥ 1.6) is possible. In very adhesive products, measurement in a surge
pipe is not recommended.
1
2
3
100%
4
5
8
6
7
0%
9
Fig. 20: Configuration surge pipe
1 Radar sensor
2 Marking of the polarisation direction
3 Thread or flange on the instrument
4 Vent hole
5 Holes
6 Weld joint
7 Welding neck flange
8 Ball valve with complete opening
9 Fastening of the surge pipe
Instructions for orientation:
•
Note marking of the polarisation plane on the sensor
•
With threaded fitting, the marking is on the hexagon, with flange
connection between the two flange holes
•
All holes in the surge pipe must be in one plane with this marking
Instructions for the measurement:
•
The 100 % point must be below the upper vent hole and the
antenna edge
•
The 0 % point is the end of the surge pipe
Measurement in a surge
pipe