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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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136	136	0XE5
137	137	)))
138	138
139		-
140	140	=== 1.7.4 Query data ===
141	141
142	142	The address of the EC K10 sensor is 11
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203	203	|=(% 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
204	204	|(% 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
205	205
206		-
207		-
208	208	= 2. DR-PH01 Water PH Sensor =
209	209
210	210	== 2.7 RS485 Commands ==
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260	260
261	261	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
262	262
263		-

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