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Last modified by Xiaoling on 2025/04/27 16:45
From version 169.2
edited by Xiaoling
on 2022/06/15 09:25
Change comment: There is no comment for this version
To version 155.2
edited by Xiaoling
on 2022/06/15 09:06
Change comment: There is no comment for this version

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102 102  
103 103  
104 104  
105 -== 1.3  Suitable Container & Liquid ==
105 +== 1.3  Specification ==
106 106  
107 -* Solid Wall container such as: steel, iron, glass, ceramics, non-foaming plastics etc.
108 -* Container shape is regular, and surface is smooth.
109 -* Container Thickness:
110 -** Pure metal material.  2~~8mm, best is 3~~5mm
111 -** Pure non metal material: <10 mm
112 -* Pure liquid without irregular deposition.
107 +=== 1.3.1  Rated environmental conditions ===
113 113  
109 +[[image:image-20220610154839-1.png]]
114 114  
111 +(((
112 +**Remarks: (1) a. When the ambient temperature is 0-39 ℃, the maximum humidity is 90% (non-condensing);       **
115 115  
116 -== 1.4  Mechanical ==
114 +**~ b. When the ambient temperature is 40-50 ℃, the highest humidity is the highest humidity in the natural world at the current temperature (no condensation)**
115 +)))
117 117  
118 -[[image:image-20220615090910-1.png]]
119 119  
120 120  
121 -[[image:image-20220615090910-2.png]]
119 +=== 1.3.2  Effective measurement range Reference beam pattern ===
122 122  
121 +**(1) The tested object is a white cylindrical tube made of PVC, with a height of 100cm and a diameter of 7.5cm.**
123 123  
124 124  
125 -== 1.5  Install LDDS20 ==
126 126  
125 +[[image:1654852253176-749.png]]
127 127  
128 -(% style="color:blue" %)**Step 1**(%%):  Choose the installation point.
129 129  
130 -LDDS20 (% style="color:red" %)**MUST**(%%) be installed on the container bottom middle position.
131 131  
132 -[[image:image-20220615091045-3.png]]
129 +(((
130 +**(2)** **The object to be tested is a "corrugated cardboard box" perpendicular to the central axis of 0 °, and the length * width is 60cm * 50cm.**
131 +)))
133 133  
134 134  
134 +[[image:1654852175653-550.png]](% style="display:none" %) ** **
135 135  
136 -(% style="color:blue" %)**Step 2**(%%): Polish the installation point.
137 137  
138 -For Metal Surface with paint, it is important to polish the surface, first use crude sand paper to polish the paint level , then use exquisite sand paper to polish the metal level to make it shine & smooth.
139 139  
140 -[[image:image-20220615092010-11.png]]
141 -
142 -
143 -No polish needed if the container is shine metal surface without paint or non-metal container.
144 -
145 -[[image:image-20220615092044-12.png]]
146 -
147 -
148 -(% style="color:blue" %)**Step3: **(%%)Test the installation point.
149 -
150 -Power on LDDS75, check if the blue LED is on, If the blue LED is on, means the sensor works. Then put ultrasonic coupling paste on the sensor and put it tightly on the installation point.
151 -
152 -
153 -It is necessary to put the coupling paste between the sensor and the container, otherwise LDDS20 won’t detect the liquid level.
154 -
155 -[[image:1655256160324-178.png]][[image:image-20220615092327-13.png]]
156 -
157 -
158 -After paste the LDDS20 well, power on LDDS20. In the first 30 seconds of booting, device will check the sensors status and BLUE LED will show the status as below. After 30 seconds, BLUE LED will be off to save battery life.
159 -
160 -
161 -(% style="color:red" %)**LED Status:**
162 -
163 -* Onboard LED: When power on device, the onboard LED will fast blink 4 times which means detect the sensor well.
164 -
165 -* (% style="color:blue" %)BLUE LED(% style="color:red" %) always ON(%%): Sensor is power on but doesn’t detect liquid. There is problem in installation point.
166 -* (% style="color:blue" %)BLUE LED(% style="color:red" %) slowly blinking(%%): Sensor detects Liquid Level, The installation point is good.
167 -
168 -LDDS20 will enter into low power mode at 30 seconds after system reset or power on, Blue LED will be off after that.
169 -
170 -Note 2:
171 -
172 -Ultrasonic coupling paste is subjected in most shipping way. So the default package doesn’t include it and user needs to purchase locally.
173 -
174 -
175 -(% style="color:blue" %)**Step4: **(%%)Install use Epoxy ab glue.
176 -
177 -[[image:image-20220615091045-8.png]]
178 -
179 -Prepare Eproxy AB glue.
180 -
181 -
182 -Put Eproxy AB glue in the sensor and press it hard on the container installation point.
183 -
184 -
185 -Reset LDDS20 and see if the BLUE LED is slowly blinking.
186 -
187 -[[image:image-20220615091045-9.png]]
188 -
189 -(% style="color:red" %)Note1:
190 -
191 -Eproxy AB glue needs 3~~ 5 minutes to stable attached. we can use other glue material to keep it in the position.
192 -
193 -
194 -(% style="color:red" %)Note 2:
195 -
196 -(% style="color:blue" %)Eproxy AB glue(%%) is subjected in most shipping way. So the default package doesn’t include it and user needs to purchase locally.
197 -
198 -
199 -
200 -
201 -
202 -
203 203  == 1.5 ​ Applications ==
204 204  
205 205  * Horizontal distance measurement
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