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Last modified by Xiaoling on 2025/04/27 16:45
From version 167.1
edited by Xiaoling
on 2022/06/15 09:20
Change comment: Uploaded new attachment "image-20220615092044-12.png", version {1}
To version 169.2
edited by Xiaoling
on 2022/06/15 09:25
Change comment: There is no comment for this version

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122 122  
123 123  
124 124  
125 +== 1.5  Install LDDS20 ==
126 +
127 +
128 +(% style="color:blue" %)**Step 1**(%%):  Choose the installation point.
129 +
130 +LDDS20 (% style="color:red" %)**MUST**(%%) be installed on the container bottom middle position.
131 +
132 +[[image:image-20220615091045-3.png]]
133 +
134 +
135 +
136 +(% style="color:blue" %)**Step 2**(%%): Polish the installation point.
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 +
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.
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125 125  == 1.5 ​ Applications ==
126 126  
127 127  * Horizontal distance measurement
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