High Frequency Ultrasonic Sensor UM0017-000 is a non-contact detect device with high accuracy. This product is installed un-
der the bottom of containers, so it can prevent the detected object from polluting. It features in high accuracy, high sensitivity, excel-
lent directivity, stability and reliability, and it is waterproof. It has been widely used as a drinking water level meter.
Application
Used to detect level of normal temperature liquid and the liquid levels in drinking fountains, or other storage containers.
HVAC, Sewage treatment, Food processing, Process controls and other applications where particles could be in the water or liquid.
Electric Property
Measure Mode
Measuring Principle
Typical Application
Specification
Detect Range
Accuracy
Response Time
Output
Digital
Rated Operate Condition
Operation Temperature
Storage Temperature
Power Supply
Power
Rated Current
Design
Material
Installation Instructions
Screw Torque
Assembling safety distance (The distance be-
tween the sensor and the container wall)
Material Requirements of the tank
Application principle of ultrasonic
Detect liquid level of food grade: Drinking foun-
tain, coffee maker, beverage machine
20 ~ 400mm
±5mm 30 °C
≤
500ms
USART Serial
Output digital value of sixteen-bit binary code
(Refer to output protocols)
+5 ~ +50 °C
-10
~ +60 °C
DC 5 ± 0.5V
≤
12mA
ABS
≤
3.5Kg
≥
50mm
Material, such as ABS, PP, PMMA, etc.
TENTATIVE RELEASE:
This specification is based on design objectives and is strictly Preliminary and subject to change. Test data may exist, but this specification is subject to change based
on the results of additional testing and evaluation. Application specific specifications will be produced for approval prior to production product being released.
Part No.
UM0017-000
Rev
A1
Title
High Frequency Liquid Level Sensor
www.audiowell-international.com
Sheet No.
1 of 4
Audiowell International LLC
Phone: 770.375.5597
Email: Melanie@audiowell-international.com
ksl 2-2018
Product Specification
Dimensions
62.6
Ø8
20
14.7
63.11
Ø 4.2
52
12.2
Details
A
B
C
D
Level Meter
Sensor
Fixing Hole
Connector
27.7
Installation Drawing
T
≤5
Ø 3.3
Ø 7.5
500
//
0.04
A
1.6
1.6
┴
0.04
A
A
┴
0.04 A
Ø8
Ø 4.2
52±0.2
M4*2 Round head
Self tapping screw
TENTATIVE RELEASE:
This specification is based on design objectives and is strictly Preliminary and subject to change. Test data may exist, but this specification is subject to change based
on the results of additional testing and evaluation. Application specific specifications will be produced for approval prior to production product being released.
Part No.
UM0017-000
Rev
A1
Title
12
-0.25
High Frequency Liquid Level Sensor
www.audiowell-international.com
Sheet No.
2 of 4
Audiowell International LLC
Phone: 770.375.5597
Email: Melanie@audiowell-international.com
ksl 2-2018
Product Specification
Interface Control
Use lead output, there is a SM2.54-3Y pin on the lead. The name of the lead is shown as below:
Ø3
SM2.54-3Y
Lead No.
1
2
3
Lead Color
Red
Black
Brown
Function of pin
VCC
GND
OUTPUT
Remark
DC 5V
Grounded
USART Serial
Output Protocols
The data of the sensor consists of boot code 0xFF (DATA1), distance signal (DATA2+DATA3) and Last Frame 0x00 (DATA4)
It transfers the low 8 bits data3 first, then transfers the high 8 bits data2.
Shown as drawing 2:
Among which: DATA2 DATA3 is sixteen-bit binary code: 0000 0000 0000 0000-0000 0001 1001 0000
Corresponding decimal values: 0mm-400mm
1.04mS
1mS
Output Time
Drawing 2
The timing length of each data bit is 104us, i.e. baud rate is 9600BPS. The data output form: low level start bit + eight-digit bit +
high level end bit (no parity). Shown as drawing 3
832uS
104uS
START
104uS
END
Drawing 3
Example:
The received data is: DATA1=1111 1111, DATA2=0000 0001, DATA3=0001 0100, DATA4=0000 0000
Convert to decimal value, the distance value is: 276mm
TENTATIVE RELEASE:
This specification is based on design objectives and is strictly Preliminary and subject to change. Test data may exist, but this specification is subject to change based
on the results of additional testing and evaluation. Application specific specifications will be produced for approval prior to production product being released.
Part No.
UM0017-000
Rev
A1
Title
High Frequency Liquid Level Sensor
www.audiowell-international.com
Sheet No.
3 of 4
Audiowell International LLC
Phone: 770.375.5597
Email: Melanie@audiowell-international.com
ksl 2-2018
Product Specification
Remarks:
1.
Instruction:
Detective Distance
Output Value
(hexadecimal)
0-20mm
0
20-400mm
14-190
400-500mm
190
>500mm
FFFF
2.
It shows
“0”
when the machine is started up and there is no water. After filling water for a continuous time, if it still shows
“0”
or there is no value that shows up, it can be caused by the failure of detector. The user should immediately be alarmed and take
corresponding action, this product has no self-check function, the user can adjust it according to his request when designs the
product.
This product calculates the distance based on the conditions of environment temperature of 30 °C, relative humidity 50%, it can
meet the accuracy to be ±5mm in the full measurement range. As ultrasonic sensor is sensitive to temperature, to guarantee the
accuracy in temperature usage range, it has to add temperature compensation accordingly. Reference the temperature compen-
sation table as below
3.
Temperature Compensation Table
Temperature (°C)
Coefficient
5
0.945
10
0.959
15
0.971
20
0.982
25
0.992
30
1
35
1.007
40
1.013
45
1.018
50
1.022
Eventually distance
=Output Data * Coefficient
Revision History:
Version
A1.0
Date (MM/DD/YY) DWN
10/6/2012
Chen Wei Jian
Statement
Final compilation, amended dimensions and installation instructions
TENTATIVE RELEASE:
This specification is based on design objectives and is strictly Preliminary and subject to change. Test data may exist, but this specification is subject to change based
on the results of additional testing and evaluation. Application specific specifications will be produced for approval prior to production product being released.
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