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37	37	== 1.5 Installation ==
38	38
39	39
40		- Do not power on while connect the cables. Double check the wiring before power on.
	40	+**Electrode installation form**
41	41
42		-Installation Photo as reference:
	42	+A:Side wall installation
43	43
44		-**~ Submerged installation:**
	44	+B:Top flange installation
45	45
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.
	46	+C:Pipeline bend installation
47	47
48		-[[image:image-20240715181933-4.png||height="281" width="258"]]
	48	+D:Pipeline bend installation
49	49
50		-**~ Pipeline installation:**
	50	+E:Flow-through installation
51	51
52		-Connect the equipment to the pipeline through the 3/4 thread.
	52	+F:Submerged installation
53	53
54		-[[image:image-20240715182122-6.png||height="291" width="408"]]
	54	+[[image:image-20240718190121-1.png||height="350" width="520"]]
55	55
56		-**Sampling:**
	56	+**Several common installation methods of electrodes**
57	57
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.
	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.
59	59
60		-**Measure the pH of the water sample:**
	60	+A. Several common incorrect installation methods
61	61
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.
	62	+[[image:image-20240718190204-2.png||height="262" width="487"]]
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.
64	64
	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	+
65	65	== 1.6 Maintain ==
66	66
67	67
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101	101	|=(% style="width: 50px;background-color:#4F81BD;color:white" %)New address|=(% style="width: 50px;background-color:#4F81BD;color:white" %)Function code|=(% style="width: 106px; background-color: rgb(79, 129, 189); color: white;" %)Data length|=(% style="width: 93px; background-color: rgb(79, 129, 189); color: white;" %)CRC16 low|=(% style="width: 104px; background-color: rgb(79, 129, 189); color: white;" %)CRC16 high
102	102	|(% style="width:99px" %)0X1|(% style="width:112px" %)0X3|(% style="width:106px" %)0X00|(% style="width:93px" %)0X20|(% style="width:104px" %)0XF0
103	103
104		-
105	105	=== 1.7.2 Change address ===
106	106
107	107	For example: Change the address of the sensor with address 1 to 2, master → slave
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137	137	0XE5
138	138	)))
139	139
140		-
141	141	=== 1.7.4 Query data ===
142	142
143		-The address of the EC K10 sensor is
	151	+The address of the EC K10 sensor is 11
144	144
145	145	The query data command is 11 03 00 00 00 02 C6 9B
146	146
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154	154	For example, the returned data is 12 03 04 (% style="color:red" %)**02 AE**(%%) 01 64 B8 D0. 02 AE is converted to decimal 686,  K=1, EC: 686uS/cm
155	155
156	156
157		-=== 7.1.5 Calibration Method ===
	165	+=== 1.7.5 Calibration Method ===
158	158
159	159
160	160	This device uses one-point calibration, and you need to prepare a known E standard solution. When mileage K=1, 1~~2000 uses 1413μS/cm standard solution, and when mileage K=10, 10~~20000 uses 12.88mS/cm standard solution.
...	...	@@ -204,11 +204,6 @@
204	204	|=(% 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
205	205	|(% 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
206	206
207		-
208		-
209		-
210		-
211		-
212	212	= 2. DR-PH01 Water PH Sensor =
213	213
214	214	== 2.7 RS485 Commands ==
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264	264
265	265	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
266	266
267		-

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