UL_–53
©
Dinel, s.r.o.
10
•
The measuring device
shall not be installed
in places
with direct sunlight and shall be protected against weather
conditions.
Direct sunlight affects the built-in temperature
compensation!
•
If installation in places with direct sunlight is inevitable, it is
necessary to mount a
shielding cover
above the device
(Fig. 15).
•
It is advisable to keep cable under the
cable gland
(sag-
ging down) as shown in Fig. 16 to prevent penetration of
moisture. Rain and condensing water can be therefore
drained away freely.
•
The cable gland as well as the connector shall be
tightened
sufficiently
to prevent penetration of moisture.
Fig. 15: Shielding cover against
direct sunlight
Fig. 16: Protection against
penetration of moisture
Fig. 14: Level meter installation in silo or hopper
horn
adapter
•
In case the level of bulk solids is meas-
ured, the measurement range is reduced
due to absorption of acoustic waves by a
bulk medium. Shortening of the measur-
ing range occurs by up to 50% depending
on the grain size. We therefore recom-
mend selecting a level meter with higher
range than the maximum distance to the
medium. It is also appropriate to use a
directional horn (see image 14), which
reduces the shortening of the measur-
ing range, because it better concentrates
acoustic energy while preserving the
same beam angle, and improves the
sensitivity when receiving the reflected
echo. We recommend to consult the use
with the manufacturer.
In the case of use for an aggressive medium is necessary to prove the chemical compatibility of
used materials of the sensor (Tab. Used materials on page 26). The guarantee ceases when the
product is chemically damaged.
Summary of Contents for ULM-53 series
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