Vega VEGAPULS 63 Operating Instructions Manual page 19

VEGAPULS 63 • 4 ... 20 mA/HART - four-wire
100%
0%
Fig. 13: VEGAPULS 63 in a bypass tube. The polarisation marking on the
process fitting must be in one plane with the tube holes or the tube connection
openings.
1 Marking of the polarisation direction
When the sensor is mounted on a bypass tube, the distance from
VEGAPULS 63 to the upper tube connection should be approx.
300 mm (11.81 in) or more. In case of extremely rough tube inner
walls, you should use an inserted tube (tube in tube) or a radar sensor
with tube antenna.
Information:
With VEGAPULS 63 in flange version, the polarisation plane is always
in the center between two flange holes.
Fig. 14: Polarisation level with flange version, view from top on the sensor and
bypass tube. The sensor housing is not shown.
1 Position of the polarisation level
2 Flange hole
3 Upper tube connection
4 Polarisation marking
2
3
4
4 Mounting
1
1
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