Last modified by Xiaoling on 2025/04/19 17:58
<
From version < 73.3 >
edited by Xiaoling
on 2024/01/09 17:29
To version < 91.1 >
edited by kai
on 2024/05/13 11:52
>
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1 -XWiki.Xiaoling
1 +XWiki.kai
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146 146  * Operating temperature: 0℃~~50℃
147 147  * Material: 316 stainless steels
148 148  
149 +=== 1.4.3 Wireless Differential Air Pressure Sensor ===
149 149  
151 +[[image:image-20240511174954-1.png]]
150 150  
153 +* Measuring Range: -100KPa~~0~~100KPa(Optional measuring range).
154 +* Accuracy: 0.5% F.S, resolution is 0.05%.
155 +* Overload: 300% F.S
156 +* Zero temperature drift: ±0.03%F.S/°C
157 +* Operating temperature: -20℃~~60℃
158 +* Storage temperature:  -20℃~~40℃
159 +* Compensation temperature: 0~~50°C
160 +
151 151  == 1.5 Application and Installation ==
152 152  
153 153  === 1.5.1 Thread Installation Type ===
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178 178  [[image:1675071725288-579.png]]
179 179  
180 180  
181 -The Immersion Type pressure sensor is shipped with the probe and device separately. When user got the device, below is the wiring to for connect the probe to the device.
191 +Below is the wiring to for connect the probe to the device.
182 182  
193 +The Immersion Type Sensor has different variant which defined by Ixx. For example, this means two points:
183 183  
195 +* Cable Length: 10 Meters
196 +* Water Detect Range: 0 ~~ 10 Meters.
197 +
184 184  [[image:1675071736646-450.png]]
185 185  
186 186  
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187 187  [[image:1675071776102-240.png]]
188 188  
189 189  
204 +
205 +=== 1.5.3 Wireless Differential Air Pressure Sensor ===
206 +
207 +
208 +(% style="color:blue" %)**Application:**
209 +
210 +Indoor Air Control & Filter clogging Detect.
211 +
212 +[[image:image-20240513100129-6.png]]
213 +
214 +[[image:image-20240513100135-7.png]]
215 +
216 +
217 +Below is the wiring to for connect the probe to the device.
218 +
219 +[[image:image-20240513093957-1.png]]
220 +
221 +
222 +Size of wind pressure transmitter:
223 +
224 +[[image:image-20240513094047-2.png]]
225 +
226 +Note: The above dimensions are measured by hand, and the numerical error of the shell is within ±0.2mm.
227 +
228 +
190 190  == 1.6 Sleep mode and working mode ==
191 191  
192 192  
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242 242  [[image:image-20240109160800-6.png]]
243 243  
244 244  
245 -
246 246  === 1.10.2 for LS version ===
247 247  
248 248  
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556 556  == 2.6 Frequency Plans ==
557 557  
558 558  
559 -The PS-LB/LS uses OTAA mode and below frequency plans by default. If user want to use it with different frequency plan, please refer the AT command sets.
597 +The PS-LB/LS uses OTAA mode and below frequency plans by default. Each frequency band use different firmware, user update the firmware to the corresponding band for their country.
560 560  
561 561  [[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20Frequency%20Band/>>http://wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20Frequency%20Band/]]
562 562  
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763 763  * Example 1: Downlink Payload: 080003  **~-~-->**  AT+PROBE=0003
764 764  * Example 2: Downlink Payload: 080101  **~-~-->**  AT+PROBE=0101
765 765  
766 -=== 3.3.5 Multiple collections are one uplink（Since firmware V1.1） ===
804 +=== 3.3.5 Multiple collections are one uplink (Since firmware V1.1) ===
767 767  
768 768  
769 769  Added AT+STDC command to collect the voltage of VDC_INPUT multiple times and upload it at one time.
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838 838  When downloading the images, choose the required image file for download. ​
839 839  
840 840  
879 +== 6.4 How to measure the depth of other liquids other than water? ==
880 +
881 +
882 +Test the current values at the depth of different liquids and convert them to a linear scale.
883 +Replace its ratio with the ratio of water to current in the decoder.
884 +
885 +**Example:**
886 +
887 +Measure the corresponding current of the sensor when the liquid depth is 2.04m and 0.51m.
888 +
889 +**Calculate scale factor：**
890 +Use these two data to calculate the current and depth scaling factors：(7.888-5.035)/(2.04-0.51)=1.86470588235294
891 +
892 +**Calculation formula：**
893 +
894 +Use the calibration formula：(Current current - Minimum calibration current)/Scale factor + Minimum actual calibration height
895 +
896 +**Actual calculations：**
897 +
898 +Use this formula to calculate the value corresponding to the current at a depth of 1.5 meters: (6.918-5.035)/1.86470588235294+0.51=1.519810726
899 +
900 +**Error：**
901 +
902 +0.009810726
903 +
904 +
905 +[[image:image-20240329175044-1.png]]
906 +
841 841  = 7. Troubleshooting =
842 842  
843 843  == 7.1 Water Depth Always shows 0 in payload ==
image-20240329175044-1.png
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