Changes for page PS-LB/LS -- LoRaWAN Air Water Pressure Sensor User Manual
Last modified by Xiaoling on 2025/04/19 17:58
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... ... @@ -146,20 +146,6 @@ 146 146 * Operating temperature: 0℃~~50℃ 147 147 * Material: 316 stainless steels 148 148 149 - 150 -=== 1.4.3 Wireless Differential Air Pressure Sensor === 151 - 152 -[[image:image-20240511174954-1.png]] 153 - 154 -* Measuring Range: -100KPa~~0~~100KPa,Intermediate range is optional. 155 -* Accuracy: 0.5% F.S, resolution is 0.05%. 156 -* Overload: 300% F.S 157 -* Zero temperature drift: ±0.03%F.S/°C 158 -* Operating temperature: -40℃~~85℃ 159 -* Compensation temperature: 0~~50°C 160 - 161 - 162 - 163 163 == 1.5 Application and Installation == 164 164 165 165 === 1.5.1 Thread Installation Type === ... ... @@ -258,6 +258,7 @@ 258 258 [[image:image-20240109160800-6.png]] 259 259 260 260 247 + 261 261 === 1.10.2 for LS version === 262 262 263 263 ... ... @@ -853,34 +853,13 @@ 853 853 When downloading the images, choose the required image file for download. 854 854 855 855 856 -== 6.4 How to measure the depth of other liquids other than water ?==843 +== 6.4 How to measure the depth of other liquids other than water？ == 857 857 845 +Test the current values at the depth of different liquids and convert them to a linear scale 846 +Replace its ratio with the ratio of water to current in the decoder 858 858 859 -Test the current values at the depth of different liquids and convert them to a linear scale. 860 -Replace its ratio with the ratio of water to current in the decoder. 861 861 862 -**Example:** 863 863 864 -Measure the corresponding current of the sensor when the liquid depth is 2.04m and 0.51m. 865 - 866 -**Calculate scale factor：** 867 -Use these two data to calculate the current and depth scaling factors：(7.888-5.035)/(2.04-0.51)=1.86470588235294 868 - 869 -**Calculation formula：** 870 - 871 -Use the calibration formula：(Current current - Minimum calibration current)/Scale factor + Minimum actual calibration height 872 - 873 -**Actual calculations：** 874 - 875 -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 876 - 877 -**Error：** 878 - 879 -0.009810726 880 - 881 - 882 -[[image:image-20240329175044-1.png]] 883 - 884 884 = 7. Troubleshooting = 885 885 886 886 == 7.1 Water Depth Always shows 0 in payload ==
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