Vega VEGAPULS 21 - Vessel installations and socket dimensions

14
4 Mounting
VEGAPULS 21 • Two-wire 4 … 20 mA/HART
58351-EN-191014
ca. 5 mm
Fig. 10: Thread mounting
Ifthereectivepropertiesofthemediumaregood,youcanmount
VEGAPULS 21 on sockets longer than the antenna. The socket end
should be smooth and burr-free, if possible also rounded.
Youwillndrecommendedvaluesforsocketheightsinthefollowing
illustration or the table. The values come from typical applications.
Deviating from the proposed dimensions, also longer sockets are
possible, however the local conditions must be taken into account.
d
h
Fig. 11: Socket mounting
Socket diameter d Socket length h
40 mm 1½" ≤150mm ≤5.9in
50 mm 2" ≤200mm ≤7.9in
80 mm 3" ≤300mm ≤11.8in
100 mm 4" ≤400mm ≤15.8in
150 mm 6" ≤600mm ≤23.6in
Note:
When mounting on longer sockets, we recommend carrying out a
false signal suppression (see chapter "Parameter adjustment").
The mounting location of the radar sensor should be a place where no
otherequipmentorxturescrossthepathoftheradarsignals.
Vessel installations, such as e.g. ladders, limit switches, heating spi-
rals, struts, etc., can cause false echoes and impair the useful echo.
Make sure when planning your measuring point that the radar sensor
has a "clear view" to the measured product.
In case of existing vessel installations, a false signal suppression
should be carried out during setup.
If large vessel installations such as struts or supports cause false
echoes, these can be attenuated through supplementary measures.
Small,inclinedsheetmetalbaesabovetheinstallationsscatterthe
radarsignalsandpreventdirectinterferingreections.
Vessel installations