User’s Manual of CLW-3/3A Intelligent Ultrasonic Level Meter
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Fig.4 Fig.5
Ultrasonic sensor (transducer) emits 1) Ultrasonic sensor (transducer)
sonic pulse in a
7°
conical beam. In should avoid lateral welded
the acoustic passage echo wave will seam on slotted wall, structural
be produced when the pulse meets member and crude slotted
any object. For avoiding echo waves wall;
reflected by real level to be shielded 2) Aim the ultrasonic sensor
by those from bin walls, crud, frame (transducer) at discharge port
and material flow the sensor should as shown in Fig.5.
be arranged as shown in Fig.4. Location 1 wrong
Location 1 as the best one; locations Location 2 correct
2,3 as the second to select.
The lowest measuring point:
Location 1 at point d;
Location 2 at point b;
Location 3 at point c.
Fig. 6 Fig. 7
Ultrasonic sensor (transducer) can’t In order to effectively measuring
be too close to the feeding hole, higher level, the sensor should
otherwise dropping materials will be placed at the nearest
interfere ultrasonic measurement as distance of >0.8m from level.
shown in Fig.6. Height of frame should be
Location 1 wrong, While feeding determined based on this
materials, measurement principle as shown in Fig.7.
