During
fi
lling, mixing and other processes,
•
foam
can arise on the surface level of the measured
liquid. The thick foam considerably absorbs the
ultrasonic signal which might cause malfunction
of the level meter (Fig. 5). For such cases, it is
necessary to set up "SENSITIVITY" mode (p. 14)
to "
high
" or contact the manufacturer if need.
If the emitted acoustic signal of the level meter
•
is affected by near objects (roughness on walls
of the tank, various partitions, mixers etc.), it is
necessary to map false re
fl
ections by activating
the mode "TEACHING" (see p. 14). In case of in-
stalled mixers, it is necessary to put the mixers
to position under the level meter (direct the mixer
blade to the ultrasonic signal beam).
Fig. 6: False echo from obstacles in
the tank
Fig. 8: Level meter installation outside the in
fl
uence of
fi
lling
Fig. 5: Thick foam on the surface
Do not install the level meter in or above the
•
fi
lling
point (Fig. 8).
In case the level of bulk-solid materials is measured, the measurement range is reduced. We
•
recommend to consult the use with the manufacturer.
Fig. 7: False echo from the mixer blade
!
www.jetec.com.tw
久德電子
TEL:
+886-4-23729418
FAX:
+886-4-23724011
(40349)
台中市西區福人街11號
