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Last modified by Mengting Qiu on 2025/08/06 17:02
From version 175.22
edited by Xiaoling
on 2022/06/15 11:09
Change comment: There is no comment for this version
To version 175.16
edited by Xiaoling
on 2022/06/15 11:05
Change comment: There is no comment for this version

Summary

Details

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Content
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100 100  * IP66 Waterproof Enclosure
101 101  * 8500mAh Battery for long term use
102 102  
103 -
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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112 112  ** Pure non metal material: <10 mm
113 113  * Pure liquid without irregular deposition.
114 114  
115 -
116 -
117 -
118 118  == 1.4  Mechanical ==
119 119  
120 120  [[image:image-20220615090910-1.png]]
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204 204  * Smart liquid control solution.
205 205  * Smart liquefied gas solution.
206 206  
207 -
208 -
209 -
210 210  == 1.7  Precautions ==
211 211  
212 212  * 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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213 213  * For containers of the same material at room temperature, the detection blind zone and detection limit height are also different for the thickness of the container.
214 214  * 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.
215 215  
216 -
217 -
218 -
219 219  == 1.8  Pin mapping and power on ==
220 220  
221 221  
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374 374  * If the sensor value is 0x0000, it means system doesn't detect ultrasonic sensor.
375 375  * If the sensor value lower than 0x0014 (20mm), the sensor value will be invalid.
376 376  
377 -
378 -
379 -
380 380  === 2.3.3  Interrupt Pin ===
381 381  
382 382  This data field shows if this packet is generated by interrupt or not. [[Click here>>||anchor="H3.2A0SetInterruptMode"]] for the hardware and software set up.
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737 737  * Example 1: Downlink Payload: 06000000 ~/~/ Turn off interrupt mode
738 738  * Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
739 739  
740 -
741 -
742 742  = 4.  FAQ =
743 743  
744 744  == 4.1  What is the frequency plan for LDDS20? ==
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788 788  * (% style="color:red" %)**CN470 **(%%)**:** LoRaWAN CN470 band
789 789  
790 790  
774 +
791 791  = 7. ​ Packing Info =
792 792  
793 793  
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795 795  
796 796  * LDDS20 LoRaWAN Liquid Level Sensor x 1
797 797  
782 +**(% style="color:red" %)Note:**
798 798  
799 -(% style="color:red" %)**Note:**
784 +**(% style="color:red" %)Ultrasonic coupling paste**(%%) and**(% style="color:red" %) Eproxy AB glue**(%%) are subjected in most shipping way. So the default package doesn’t include it and user needs to purchase locally.
800 800  
801 -(% style="color:red" %)**Ultrasonic coupling paste**(%%) and(% style="color:red" %)** Eproxy AB glue**(%%) are subjected in most shipping way. So the default package doesn’t include it and user needs to purchase locally.
802 802  
803 -
804 804  **Dimension and weight**:
805 805  
806 806  * Device Size: cm
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809 809  * Weight / pcs : g
810 810  
811 811  
795 +
812 812  = 8.  ​Support =
813 813  
814 814  * Support is provided Monday to Friday, from 09:00 to 18:00 GMT+8. Due to different timezones we cannot offer live support. However, your questions will be answered as soon as possible in the before-mentioned schedule.