VEGA VEGASON 54K…56K - Manual (Page 29)

VEGASON 54K … 56K 29
4.5 Socket extensions
The ultrasonic sensors require a min. dis-
tance to the product or solid. Take the min.
distance into account in your planning. In
some situations, it is possible to reach the
required min. distance, and hence the de-
sired filling height, with a socket extension.
However, the socket extension increases the
noise level of the ultrasonic signal at the ex-
tension outlet and can interfere with the
measurement. Only use a socket extension if
all other possibilities have to be excluded.
Carry out the extension as shown in the fol-
lowing illustration.
Socket extensions in liquids
Chamfer and deburr the socket carefully and
make sure it has a smooth inner surface. The
socket should not protrude into the meas-
ured product, in case buildup can form on
the socket through impurities or product
residues.
With nonadhesive measured products, a
socket extension in the form of a measuring
tube can be permanently submerged in the
product. The ultrasonic measurement is then
carried out exclusively in the measuring tube
and works very well without interference from
other vessel installations (see "Pump shaft“).
Socket piece should not be immersed into adhesive
products (figure: VEGASON 54)
VEGASON 56 in 1“ mounting boss
Reference plane
Min. distance
Mounting and installation
Mounting boss
The socket axis should point to the product
surface. The use of a swivelling holder would
be even better (type B, C), as described
previously.
Material heaps
Large material heaps are detected with sev-
eral instruments, which can be mounted on
e.g. traverse cranes. For this type of applica-
tion, it is best to orient the sensor toward the
solid surface.
Transducer on traverse crane above material heaps