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37	37	== 1.5 Installation ==
38	38
39	39
40		-**Electrode installation form**
	40	+ Do not power on while connect the cables. Double check the wiring before power on.
41	41
42		-A:Side wall installation
	42	+Installation Photo as reference:
43	43
44		-B:Top flange installation
	44	+**~ Submerged installation:**
45	45
46		-C:Pipeline bend installation
	46	+The lead wire of the equipment passes through the waterproof pipe, and the 3/4 thread on the top of the equipment is connected to the 3/4 thread of the waterproof pipe with raw tape. Ensure that the top of the equipment and the equipment wire are not flooded.
47	47
48		-D:Pipeline bend installation
	48	+[[image:image-20240715181933-4.png||height="281" width="258"]]
49	49
50		-E:Flow-through installation
	50	+**~ Pipeline installation:**
51	51
52		-F:Submerged installation
	52	+Connect the equipment to the pipeline through the 3/4 thread.
53	53
54		-[[image:image-20240718190121-1.png||height="350" width="520"]]
	54	+[[image:image-20240715182122-6.png||height="291" width="408"]]
55	55
56		-**Several common installation methods of electrodes**
	56	+**Sampling:**
57	57
58		-When installing the sensor on site, you should strictly follow the correct installation method shown in the following picture. Incorrect installation method will cause data deviation.
	58	+Take representative water samples according to sampling requirements. If it is inconvenient to take samples, you can also put the electrode into the solution to be tested and read the output data. After a period of time, take out the electrode and clean it.
59	59
60		-A. Several common incorrect installation methods
	60	+**Measure the pH of the water sample:**
61	61
62		-[[image:image-20240718190204-2.png||height="262" width="487"]]
	62	+First rinse the electrode with distilled water, then rinse it with the water sample, then immerse the electrode in the sample, carefully shake the test cup or stir it to accelerate the electrode balance, let it stand, and record the pH value when the reading is stable.
63	63
64		-Error cause: The electrode joint is too long, the extension part is too short, the sensor is easy to form a dead cavity, resulting in measurement error.
65	65
66		-[[image:image-20240718190221-3.png||height="292" width="500"]]
67		-
68		-Error cause: Measurement error or instability may occur due to water flow not being able to fill the pipe or air accumulation at high altitudes.
69		-
70		-B. Correct installation method
71		-
72		-[[image:image-20240718190249-4.png||height="287" width="515"]]
73		-
74		-
75	75	== 1.6 Maintain ==
76	76
77	77
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146	146	0XE5
147	147	)))
148	148
	139	+
149	149	=== 1.7.4 Query data ===
150	150
151	151	The address of the EC K10 sensor is 11
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212	212	|=(% style="width: 50px;background-color:#4F81BD;color:white" %)Address|=(% style="width: 50px;background-color:#4F81BD;color:white" %)Function code|=(% style="width: 50px;background-color:#4F81BD;color:white" %)Address high|=(% style="width: 50px;background-color:#4F81BD;color:white" %)Address low|=(% style="width: 50px;background-color:#4F81BD;color:white" %)Quantity high|=(% style="width: 1px; background-color: rgb(79, 129, 189); color: white;" %)Quantity low|=(% style="width: 50px;background-color:#4F81BD;color:white" %)CRC16 low|=(% style="width: 50px;background-color:#4F81BD;color:white" %)CRC16 high
213	213	|(% style="width:99px" %)0X11|(% style="width:112px" %)0X06|(% style="width:135px" %)0X00|(% style="width:126px" %)0X26|(% style="width:85px" %)0X00|(% style="width:1px" %)0X02|(% style="width:1px" %)0XEB|(% style="width:1px" %)0X50
214	214
	206	+
	207	+
	208	+
	209	+
215	215	= 2. DR-PH01 Water PH Sensor =
216	216
217	217	== 2.7 RS485 Commands ==
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267	267
268	268	02 9A is the turbidity value, converted to decimal, it is 666, and then divided by 10, the actual value is 66.6, 02 9A means the current turbidity value is 66.6 NTU
269	269
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