Operating Instructions - VEGAPULS 54K enamel
Operating Instructions - VEGAPULS 54K enamel
Operating Instructions - VEGAPULS 54K enamel
You also want an ePaper? Increase the reach of your titles
YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.
24 101-EN-041227<br />
Mounting and installation<br />
On dished vessel tops, please do not mount<br />
the instrument in the centre or close to the<br />
vessel wall, but approx.½ vessel radius from<br />
the centre or from the vessel wall.<br />
Dished tank tops can act as paraboloidal<br />
reflectors. If the radar sensor is placed in the<br />
focal point of the parabolic tank top, the radar<br />
sensor receives amplified false echoes. The<br />
radar sensor should be mounted outside the<br />
focal point. Parabolically amplified echoes are<br />
thereby avoided.<br />
Reference plane<br />
1 /2 vessel<br />
radius<br />
Mounting on round vessel tops<br />
Horn antenna directly on the vessel top<br />
If the stability of the vessel will allow it (sensor<br />
weight), flat mounting directly on the vessel<br />
top is a good and cost-effective solution. The<br />
top side of the vessel is the reference plane.<br />
Mounting directly on flat vessel top<br />
Reference plane<br />
2.3 False echoes<br />
The radar sensor must be installed at a location<br />
where no installations or inflowing material<br />
cross the radar pulses. The following examples<br />
and instructions show the most frequent<br />
measuring problems and how to avoid them.<br />
Vessel protrusions<br />
Vessel forms with flat protrusions can make<br />
measurement very difficult due to their strong<br />
false echoes. Baffles mounted above these<br />
flat protrusions scatter the false echoes and<br />
guarantee a reliable measurement.<br />
Vessel protrusions (ledge)<br />
Intake pipes, i.e. for the mixing of materials -<br />
with a flat surface directed towards the sensor<br />
- should be covered with an angled baffle<br />
that scatters false echoes.<br />
Vessel protrusions (intake pipe)<br />
Correct Incorrect<br />
Correct Incorrect<br />
<strong>VEGAPULS</strong> <strong>54K</strong> <strong>enamel</strong> 11