Vega VEGAPULS 62 Operating Instructions Manual page 22

4 Mounting
Surge pipe extension
Instructions and require-
ments, surge pipe
22
ø 60,3 mm
(2.37")
15 mm
(0.59")
2 mm
(0.08")
1
4 mm
(0.16")
Fig. 18: Welding connection with surge pipe extension for different example
diameters
1 Position of the welded joint with longitudinally welded pipes
Instructions of orientation of the polarisation:
•
Note marking of the polarisation on the sensor
•
With threaded versions, the marking is on the hexagon, with flange
versions between two flange holes
•
The marking must be in one plane with the holes in the surge pipe
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
•
During parameter adjustment, select "Application standpipe" and
enter the tube diameter to compensate for errors due to running
time shift
•
A false signal suppression with the installed sensor is recom-
mended but not mandatory
•
The measurement through a ball valve with unrestricted channel
is possible
Constructive requirements:
•
Material metal, smooth inner surface
•
Preferably pultruded or straight beaded stainless steel tube
•
Welded joint should be straight and lie in one axis with the holes
•
Flanges are welded to the tube according to the orientation of the
polarisation
ø 88,9 mm
(3.5")
26 mm
(1.02")
2 mm
(0.08")
1
5 mm
(0.20")
VEGAPULS 62 • 4 ... 20 mA/HART - four-wire
ø 114,3 mm
(4.5")
30,5 mm
(1.20")
2 mm
(0.08")
1
5 mm
(0.20")