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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... ... @@ -845,28 +845,7 @@ 845 845 Test the current values at the depth of different liquids and convert them to a linear scale. 846 846 Replace its ratio with the ratio of water to current in the decoder. 847 847 848 -**Example:** 849 849 850 -Measure the corresponding current of the sensor when the liquid depth is 2.04m and 0.51m. 851 - 852 -**Calculate scale factor：** 853 -Use these two data to calculate the current and depth scaling factors：(7.888-5.035)/(2.04-0.51)=1.86470588235294 854 - 855 -**Calculation formula：** 856 - 857 -Use the calibration formula：(Current current - Minimum calibration current)/Scale factor + Minimum actual calibration height 858 - 859 -**Actual calculations：** 860 - 861 -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 862 - 863 -**Error：** 864 - 865 -0.009810726 866 - 867 - 868 -[[image:image-20240329175044-1.png]] 869 - 870 870 = 7. Troubleshooting = 871 871 872 872 == 7.1 Water Depth Always shows 0 in payload ==
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