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1		-XWiki.Xiaoling
	1	+XWiki.ting

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147	147	* Material: 316 stainless steels
148	148
149	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	+
150	150	== 1.5 Application and Installation ==
151	151
152	152	=== 1.5.1 Thread Installation Type ===
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179	179
180	180	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.
181	181
	195	+The Immersion Type Sensor has different variant which defined by Ixx. For example, this means two points:
182	182
	197	+* Cable Length: 10 Meters
	198	+* Water Detect Range: 0 ~~ 10 Meters.
	199	+
183	183	[[image:1675071736646-450.png]]
184	184
185	185
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241	241	[[image:image-20240109160800-6.png]]
242	242
243	243
244		-
245	245	=== 1.10.2 for LS version ===
246	246
247	247
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762	762	* Example 1: Downlink Payload: 080003  **~-~-->**  AT+PROBE=0003
763	763	* Example 2: Downlink Payload: 080101  **~-~-->**  AT+PROBE=0101
764	764
765		-=== 3.3.5 Multiple collections are one uplink（Since firmware V1.1） ===
	781	+=== 3.3.5 Multiple collections are one uplink (Since firmware V1.1) ===
766	766
767	767
768	768	Added AT+STDC command to collect the voltage of VDC_INPUT multiple times and upload it at one time.
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837	837	When downloading the images, choose the required image file for download. ​
838	838
839	839
	856	+== 6.4 How to measure the depth of other liquids other than water? ==
	857	+
	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	+
	862	+**Example:**
	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	+
840	840	= 7. Troubleshooting =
841	841
842	842	== 7.1 Water Depth Always shows 0 in payload ==

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