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Last modified by Xiaoling on 2025/04/27 16:45
From version 170.5
edited by Xiaoling
on 2022/06/15 09:46
Change comment: There is no comment for this version
To version 171.2
edited by Xiaoling
on 2022/06/15 09:49
Change comment: There is no comment for this version

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102 102  
103 103  
104 104  
105 -
106 106  == 1.3  Suitable Container & Liquid ==
107 107  
108 108  * Solid Wall container such as: steel, iron, glass, ceramics, non-foaming plastics etc.
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146 146  [[image:image-20220615092044-12.png]]
147 147  
148 148  
148 +
149 149  (% style="color:blue" %)**Step3:   **(%%)Test the installation point.
150 150  
151 151  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.
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174 174  (% style="color:red" %)Ultrasonic coupling paste (%%) is subjected in most shipping way. So the default package doesn’t include it and user needs to purchase locally.
175 175  
176 176  
177 +
177 177  (% style="color:blue" %)**Step4:   **(%%)Install use Epoxy ab glue.
178 178  
179 -
180 180  Prepare Eproxy AB glue.
181 181  
182 182  Put Eproxy AB glue in the sensor and press it hard on the container installation point.
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203 203  * Smart liquefied gas solution.
204 204  
205 205  
206 +
207 +
206 206  == 1.7  Precautions ==
207 207  
208 208  * At room temperature, containers of different materials, such as steel, glass, iron, ceramics, non-foamed plastics and other dense materials, have different detection blind areas and detection limit heights.
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210 210  * When the detected liquid level exceeds the effective detection value of the sensor, and the liquid level of the liquid to be measured shakes or tilts, the detected liquid height is unstable.
211 211  
212 212  
215 +
216 +
213 213  == 1.8  Pin mapping and power on ==
214 214  
215 215  
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239 239  )))
240 240  
241 241  (((
242 -[[image:1654848616367-242.png]]
246 +[[image:1655257698953-697.png]]
243 243  )))
244 244  
245 245  (((
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249 249  (((
250 250  
251 251  
252 -(% style="color:blue" %)**Step 1**(%%): Create a device in TTN with the OTAA keys from LDDS75.
256 +(% style="color:blue" %)**Step 1**(%%): Create a device in TTN with the OTAA keys from LDDS20.
253 253  )))
254 254  
255 255  (((
256 -Each LDDS75 is shipped with a sticker with the default device keys, user can find this sticker in the box. it looks like below.
260 +Each LDDS20 is shipped with a sticker with the default device keys, user can find this sticker in the box. it looks like below.
257 257  )))
258 258  
259 259  [[image:image-20220607170145-1.jpeg]]
1655257698953-697.png
Author
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1 +XWiki.Xiaoling
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1 +101.7 KB
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