The Daviteq ULA ultrasonic level sensor together with a wireless transmitter to be used in the following cases:
To measure the filling level of waste in the trash bin with a height size from 45 to 450 cm;
To measure the distance from the sensor to an object such as a wall, a door opening...
Make sure the installation environment does not emit gases that harm the transducer (ceramic materials) or the
device housing (usually made from Polycarbonate);
Make sure the measured distance must be within the detection range of the sensor;
Do not place the transducer upward to the sky for outdoor application as the rain drops can cause
malfunctioning;
Make sure there is no impact on the transducer surface; it will cause the transducer to get damaged;
Do not install the sensor in the closed compartment with solvent vapor or steam; it will cause the wrong
measurement.
No.
Phenomena
Reason
Solutions
1
The distance value
always shows 28-30mm
1.1
The object is very close to the
sensor, within the blind zone of the
sensor.
Do nothing, it is the standard feature
of the sensor. The sensor can only
measure the distance from 3 cm to
450 cm.
1.2
The transducer is covered by a thick
layer of dust or particles.
Clean the transducer surface with a
soft detergent and clean water.
2
The distance value
always shows 450-500
cm
2.1
The object is too far away from the
sensor, it is out of the detection
range of the sensor.
Make sure the measuring distance
must be within the detection range
of the sensor, 3-450 cm
3
The distance/level value
fluctuates largely.
3.1
The object's surface (waste) is not
flat and very rough.
Try to increase the parameter
Num_of_samples to increase the
filtering so that the sensor can
deliver a stable average value. But it
will cause the battery life to be
shorter. We recommend the
Num_of_sample is <= 50.
3.2
The sensor is mounted on the
movable lid of the trash bin, and the
moving speed of the lid is too long.
Normally, the time of opening and
closing should be less than 10s.
Check the moving speed of the lid
and try to increase its speed.
If not, please try to increase the
parameter Num_of_samples to
increase the filtering so that the
sensor can deliver a stable average
value. But it will cause the battery
life to be shorter. We recommend
the Num_of_sample is <= 50.
4
The distance/level value
is fixed at an abnormal
value.
4.1
The sensor is mounted on the
movable lid of the trash bin, and the
lid is stuck and stays at the opening
position all the time.
Check the lid of the trash bin.
level sensor
5. Installation notes
6. Troubleshooting for the ULA Ultrasonic Level
Sensor
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Page 64: ...Figure 12 Adjust the orientation of the probe 5 7 Attach the Wireless Transmitter to the probe...
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Page 87: ...Tel 84 28 6268 2523 4 ext 122 Email info daviteq com www daviteq com...
