VEGAPULS 51K … 54K
23
21750-EN-031222
Incorrect
Incorrect
- 100 mm
(250 mm)
< 100 mm
(250 mm)
Mounting and installation
3.5 Common installation mistakes
Socket piece too long
If the sensor is mounted in a socket exten-
sion that is too long, strong false echoes are
generated which interfere with the measure-
ment. Make sure that the horn antenna pro-
trudes out of the socket piece.
Flange antenna: Correct and unfavourable socket
length
Flange antenna: Correct and unfavourable socket
length
Unfavour-
able
Correct
Unfavourable
Mounting on a vessel with parabolic tank top
Correct
~ ½
vessel
radius
Correct
Parabolic effects on dished or rounded
vessel tops
Round or parabolic tank tops act on the radar
signals like a parabolic mirror. If the radar
sensor is placed at the focal point of such a
parabolic tank top, the sensor receives am-
plified false echoes. The optimum mounting
location is generally in the range of half the
vessel radius from the centre.
≥
10 mm
Reference plane
Wrong orientation to the product
Weak measuring signals are generated if the
sensor is not directly pointed at the product
surface. Orient the sensor axis perpendicu-
larly to the product surface to achieve opti-
mum measuring results.
Содержание VEGAPULS 51K
Страница 1: ...Operating Instructions VEGAPULS 51K 54K 4 20 mA HART compact sensor...
Страница 41: ...VEGAPULS 51K 54K 41 21750 EN 031222 Rx VEGAMET VEGALOG Ri 250 250 Ri 250 Set up PLC PLC...
Страница 49: ...VEGAPULS 51K 54K 49 21750 EN 031222 Set up VEGALOG VEGAMET Rx...
Страница 70: ...70 VEGAPULS 51K 54K 21750 EN 031222 Supplement CE declaration of conformity...
Страница 71: ...VEGAPULS 51K 54K 71 21750 EN 031222 Supplement...