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Changes for page Water Quality Sensors

Last modified by Karry Zhuang on 2025/07/25 09:38
From version 59.1
edited by Karry Zhuang
on 2025/02/18 15:43
Change comment: There is no comment for this version
To version 20.1
edited by Karry Zhuang
on 2024/07/18 19:02
Change comment: Uploaded new attachment "image-20240718190204-2.png", version {1}

Summary

Details

Page properties
Content
... ... @@ -3,37 +3,26 @@
3 3  {{toc/}}
4 4  
5 5  
6 -
7 -
8 8  = 1. DR-ECK Water EC Probe =
9 9  
10 10  == 1.1 Specification: ==
11 11  
12 -
13 13  * **Power Input**: DC7~~30
14 -
15 15  * **Power Consumption** : < 0.5W
16 -
17 17  * **Interface**: RS485. 9600 Baud Rate
18 -
19 19  * **EC Range & Resolution:**
20 20  ** **ECK0.01** : 0.02 ~~ 20 μS/cm
21 21  ** **ECK0.1**: 0.2 ~~ 200.0 μS/cm
22 -** **ECK1.0** : 0 ~~ 2,000 μS/cm  Resolution: 1 μS/cm
23 -** **ECK10.0** : 10 ~~ 20,000 μS/cm  Resolution: 10 μS/cm
24 -
16 +** **ECK1.0** : 2 ~~ 2,000 μS/cm  Resolution: 1 μS/cm
17 +** **ECK10.0** : 20 ~~ 20,000 μS/cm  Resolution: 10 μS/cm
25 25  * **EC Accuracy**: ±1% FS
19 +* **Temperature Measure Range**: -20 ~~ 60 °C
26 26  * **Temperature Accuracy: **±0.5 °C
27 -* **Working environment:**
28 -** Ambient Temperature: 0–60°C
29 -** Relative Humidity: <85% RH(Specifically refers to the cable male and female)
30 30  * **IP Rated**: IP68
31 -
32 32  * **Max Pressure**: 0.6MPa
33 33  
34 34  == 1.2 Application for Different Range ==
35 35  
36 -
37 37  [[image:image-20240714173018-1.png]]
38 38  
39 39  
... ... @@ -40,12 +40,8 @@
40 40  == 1.3 Wiring ==
41 41  
42 42  
43 -[[image:image-20241129142314-1.png||height="352" width="1108"]]
44 -
45 -
46 46  == 1.4 Mechinical Drawing ==
47 47  
48 -
49 49  [[image:image-20240714174241-2.png]]
50 50  
51 51  
... ... @@ -52,21 +52,21 @@
52 52  == 1.5 Installation ==
53 53  
54 54  
55 -**Electrode installation form:**
40 +**Electrode installation form**
56 56  
57 -A: Side wall installation
42 +A:Side wall installation
58 58  
59 -B: Top flange installation
44 +B:Top flange installation
60 60  
61 -C: Pipeline bend installation
46 +C:Pipeline bend installation
62 62  
63 -D: Pipeline bend installation
48 +D:Pipeline bend installation
64 64  
65 -E: Flow-through installation
50 +E:Flow-through installation
66 66  
67 -F: Submerged installation
52 +F:Submerged installation
68 68  
69 -[[image:image-20240718190121-1.png||height="350" width="520"]]
54 +[[image:image-20240716104537-2.png||height="475" width="706"]]
70 70  
71 71  **Several common installation methods of electrodes**
72 72  
... ... @@ -74,30 +74,35 @@
74 74  
75 75  A. Several common incorrect installation methods
76 76  
77 -[[image:image-20240718190204-2.png||height="262" width="487"]]
62 +[[image:image-20240717103452-1.png||height="320" width="610"]]
78 78  
79 -**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 +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 +
80 80  
81 -[[image:image-20240718190221-3.png||height="292" width="500"]]
67 +[[image:image-20240716105124-4.png||height="326" width="569"]]
82 82  
83 -**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 +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.
84 84  
85 85  B. Correct installation method
86 86  
87 -[[image:image-20240718190249-4.png||height="287" width="515"]]
73 +[[image:image-20240716105318-5.png||height="330" width="594"]]
88 88  
89 89  
90 -== 1.6 Maintenance ==
76 +== 1.6 Maintain ==
91 91  
92 92  
93 -* The equipment itself generally does not require daily maintenance. When an obvious fault occurs, please do not open it and repair it yourself, and contact us as soon as possible.
79 +* The equipment itself generally does not require daily maintenance. When an obvious fault occurs, please do not open it and repair it yourself. Contact us as soon as possible!
80 +* There is an appropriate amount of soaking solution in the protective bottle at the front end of the electrode. The electrode head is soaked in it to keep the glass bulb and the liquid junction activated. When measuring, loosen the bottle cap, pull out the electrode, and rinse it with pure water before use.
81 +* Preparation of electrode soaking solution: Take a packet of PH4.00 buffer, dissolve it in 250 ml of pure water, and soak it in 3M potassium chloride solution. The preparation is as follows: Take 25 grams of analytical pure potassium chloride and dissolve it in 100 ml of pure water.
82 +* The glass bulb at the front end of the electrode cannot come into contact with hard objects. Any damage and scratches will make the electrode ineffective.
83 +* Before measurement, the bubbles in the electrode glass bulb should be shaken off, otherwise it will affect the measurement. When measuring, the electrode should be stirred in the measured solution and then placed still to accelerate the response.
84 +* The electrode should be cleaned with deionized water before and after measurement to ensure accuracy.
85 +* After long-term use, the pH electrode will become passivated, which is characterized by a decrease in sensitivity gradient, slow response, and inaccurate readings. At this time, the bulb at the bottom of the electrode can be soaked in 0.1M dilute hydrochloric acid for 24 hours (0.1M dilute hydrochloric acid preparation: 9 ml of hydrochloric acid is diluted to 1000 ml with distilled water), and then soaked in 3.3M potassium chloride solution for 24 hours. If the pH electrode is seriously passivated and soaking in 0.1M hydrochloric acid has no effect, the pH electrode bulb can be soaked in 4% HF (hydrofluoric acid) for 3-5 seconds, washed with pure water, and then soaked in 3.3M potassium chloride solution for 24 hours to restore its performance.
86 +* Glass bulb contamination or liquid junction blockage can also cause electrode passivation. At this time, it should be cleaned with an appropriate solution according to the nature of the contaminant.
87 +* (((
88 +The equipment should be calibrated before each use. For long-term use, it is recommended to calibrate once every 3 months. The calibration frequency should be adjusted appropriately according to different application conditions (degree of dirt in the application, deposition of chemical substances, etc.). After aging, the electrodes should be replaced in time.
89 +)))
94 94  
95 -* If the electrode is not used for a long time, it can generally be stored in a dry place, but it must be placed (stored) in distilled water for several hours before use to activate the electrode. Electrodes that are frequently used can be placed (stored) in distilled water.
96 -
97 -* Cleaning of conductivity electrodes: Organic stains on the electrode can be cleaned with warm water containing detergent, or with alcohol. Calcium and magnesium precipitates are best cleaned with 10% citric acid. The electrode plate or pole can only be cleaned by chemical methods or by shaking in water. Wiping the electrode plate will damage the coating (platinum black) on the electrode surface.
98 -
99 -* The equipment should be calibrated before each use. It is recommended to calibrate it every 3 months for long-term use. The calibration frequency should be adjusted appropriately according to different application conditions (degree of dirt in the application, deposition of chemical substances, etc.).
100 -
101 101  == 1.7 RS485 Commands ==
102 102  
103 103  
... ... @@ -107,98 +107,70 @@
107 107  
108 108  === 1.7.1 Query address ===
109 109  
100 +send
110 110  
111 -**send:**
102 +(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:676.25px" %)
103 +|=(% style="width: 50px;background-color:#4F81BD;color:white" %)Original 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
104 +|(% style="width:99px" %)0XFE |(% style="width:112px" %)0X03|(% style="width:135px" %)0X00|(% style="width:126px" %)0X50|(% style="width:85px" %)0X00|(% style="width:1px" %)0X00|(% style="width:1px" %)0X51|(% style="width:1px" %)0XD4
112 112  
113 -(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:518px" %)
114 -|=(% style="width: 74.75px;background-color:#4F81BD;color:white" %)Original address|=(% style="width: 64.75px; background-color: rgb(79, 129, 189); color: white;" %)Function code|=(% style="width: 64.75px;background-color:#4F81BD;color:white" %)Address high|=(% style="width: 64.75px;background-color:#4F81BD;color:white" %)Address low|=(% style="width: 64.75px;background-color:#4F81BD;color:white" %)Quantity high|=(% style="width: 64.75px;background-color:#4F81BD;color:white" %)Quantity low|=(% style="width: 59.75px;background-color:#4F81BD;color:white" %)CRC16 low|=(% style="width: 59.75px;background-color:#4F81BD;color:white" %)CRC16 high
115 -|(% style="width:99px" %)0XFE |(% style="width:72px" %)0X03|(% style="width:50px" %)0X00|(% style="width:42px" %)0X50|(% style="width:42px" %)0X00|(% style="width:42px" %)0X00|(% style="width:56px" %)0X51|(% style="width:56px" %)0XD4
116 -
117 117  If you forget the original address of the sensor, you can use the broadcast address 0XFE instead. When using 0XFE, the host can only connect to one slave, which can be used as a method of address query.
118 118  
119 119  
120 -**response:**
109 +response
121 121  
122 -(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:512px" %)
123 -|=(% style="width: 100px;background-color:#4F81BD;color:white" %)New address|=(% style="width: 110px;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
124 -|(% style="width:99px" %)0X01|(% style="width:112px" %)0X03|(% style="width:106px" %)0X00|(% style="width:93px" %)0X20|(% style="width:104px" %)0XF0
111 +(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:561.333px" %)
112 +|=(% 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
113 +|(% style="width:99px" %)0X1|(% style="width:112px" %)0X3|(% style="width:106px" %)0X00|(% style="width:93px" %)0X20|(% style="width:104px" %)0XF0
125 125  
126 126  === 1.7.2 Change address ===
127 127  
128 -
129 129  For example: Change the address of the sensor with address 1 to 2, master → slave
130 130  
131 -(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:518px" %)
132 -|=(% style="width: 74.75px; background-color: rgb(79, 129, 189); color: white;" %)Original address|=(% style="width: 64.75px; background-color: rgb(79, 129, 189); color: white;" %)Function code|=(% style="width: 64.75px; background-color: rgb(79, 129, 189); color: white;" %)Address high|=(% style="width: 64.75px; background-color: rgb(79, 129, 189); color: white;" %)Address low|=(% style="width: 64.75px; background-color: rgb(79, 129, 189); color: white;" %)Quantity high|=(% style="width: 64.75px; background-color: rgb(79, 129, 189); color: white;" %)Quantity low|=(% style="width: 59.75px; background-color: rgb(79, 129, 189); color: white;" %)CRC16 low|=(% style="width: 59.75px; background-color: rgb(79, 129, 189); color: white;" %)CRC16 high
133 -|(% style="width:67px" %)0X01|(% style="width:76px" %)0X06|(% style="width:60px" %)0X00|(% style="width:50px" %)0X50|(% style="width:50px" %)0X00|(% style="width:50px" %)0X02|(% style="width:57px" %)0X08|(% style="width:56px" %)0X1A
119 +(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:676.25px" %)
120 +|=(% style="width: 50px;background-color:#4F81BD;color:white" %)Original 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
121 +|(% style="width:99px" %)0X01|(% style="width:112px" %)0X06|(% style="width:135px" %)0X00|(% style="width:126px" %)0X50|(% style="width:85px" %)0X00|(% style="width:1px" %)0X02|(% style="width:1px" %)0X08|(% style="width:1px" %)0X1A
134 134  
135 135  If the sensor receives correctly, the data is returned along the original path.
124 +Note: If you forget the original address of the sensor, you can use the broadcast address 0XFE instead. When using 0XFE, the host can only connect to one slave, and the return address is still the original address, which can be used as a method of address query.
136 136  
137 -(% style="color:red" %)**Note: If you forget the original address of the sensor, you can use the broadcast address 0XFE instead. When using 0XFE, the host can only connect to one slave, and the return address is still the original address, which can be used as a method of address query.**
138 138  
139 -
140 140  === 1.7.3 Modify intercept ===
141 141  
142 142  
143 -**send:**
130 +send
144 144  
145 -(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:512px" %)
146 -|=(% style="width: 64px;background-color:#4F81BD;color:white" %)Address|=(% style="width: 64px;background-color:#4F81BD;color:white" %)Function code|=(% style="width: 64px;background-color:#4F81BD;color:white" %)Address high|=(% style="width: 64px;background-color:#4F81BD;color:white" %)Address low|=(% style="width: 64px;background-color:#4F81BD;color:white" %)Quantity high|=(% style="width: 64px; background-color: rgb(79, 129, 189); color: white;" %)Quantity low|=(% style="width: 64px;background-color:#4F81BD;color:white" %)CRC16 low|=(% style="width: 64px;background-color:#4F81BD;color:white" %)CRC16 high
147 -|(% style="width:64px" %)0X01|(% style="width:112px" %)0X06|(% style="width:135px" %)0X00|(% style="width:126px" %)0X23|(% style="width:85px" %)0X00|(% style="width:1px" %)0X01|(% style="width:1px" %)0XF8|(% style="width:1px" %)(((
148 -0X07
132 +(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:676.25px" %)
133 +|=(% 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
134 +|(% style="width:99px" %)0X01|(% style="width:112px" %)0X06|(% style="width:135px" %)0X00|(% style="width:126px" %)0X23|(% style="width:85px" %)0X00|(% style="width:1px" %)0X01|(% style="width:1px" %)0XFA|(% style="width:1px" %)(((
135 +0X97
149 149  )))
150 150  
151 151  Change the intercept of the sensor with address 1 to 10 (default 0), which is 0X000A in the command.
152 152  
153 -**response:**
140 +response
154 154  
155 -(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:512px" %)
156 -|=(% style="width: 64px;background-color:#4F81BD;color:white" %)Address|=(% style="width: 64px;background-color:#4F81BD;color:white" %)Function code|=(% style="width: 64px;background-color:#4F81BD;color:white" %)Address high|=(% style="width: 64px;background-color:#4F81BD;color:white" %)Address low|=(% style="width: 64px;background-color:#4F81BD;color:white" %)Quantity high|=(% style="width: 64px; background-color: rgb(79, 129, 189); color: white;" %)Quantity low|=(% style="width: 64px;background-color:#4F81BD;color:white" %)CRC16 low|=(% style="width: 64px;background-color:#4F81BD;color:white" %)CRC16 high
142 +(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:676.25px" %)
143 +|=(% 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
157 157  |(% style="width:99px" %)0X01|(% style="width:112px" %)0X06|(% style="width:135px" %)(((
158 158  0X02
159 -)))|(% style="width:126px" %)0X00|(% style="width:85px" %)0X00|(% style="width:1px" %)0X0A|(% style="width:1px" %)0X38|(% style="width:1px" %)(((
160 -0X8F
146 +)))|(% style="width:126px" %)0X00|(% style="width:85px" %)0X00|(% style="width:1px" %)0X0A|(% style="width:1px" %)0X0A|(% style="width:1px" %)(((
147 +0XE5
161 161  )))
162 162  
163 163  === 1.7.4 Query data ===
164 164  
165 -
166 -Query the data (EC,temperature) of the sensor (address 11), host → slave
167 -
168 -(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:518px" %)
169 -|=(% style="width: 42px;background-color:#4F81BD;color:white" %)Address|=(% style="width: 68px; background-color: rgb(79, 129, 189); color: white;" %)Function code|=(% style="width: 68px; background-color: rgb(79, 129, 189); color: white;" %)Starting register address high|=(% style="width: 68px; background-color: rgb(79, 129, 189); color: white;" %)Starting register address low|=(% style="width: 68px; background-color: rgb(79, 129, 189); color: white;" %)Register length high|=(% style="width: 68px; background-color: rgb(79, 129, 189); color: white;" %)Register length low|=(% style="width: 68px; background-color: rgb(79, 129, 189); color: white;" %)CRC16 low|=(% style="width: 68px; background-color: rgb(79, 129, 189); color: white;" %)CRC16 high
170 -|(% style="width:99px" %)0X11|(% style="width:72px" %)0X03|(% style="width:64px" %)0X00|(% style="width:68px" %)0X00|(% style="width:70px" %)0X00|(% style="width:72px" %)0X02|(% style="width:56px" %)0XC6|(% style="width:56px" %)0X9B
171 -
172 -If the sensor receives correctly, the following data will be returned, slave → host
173 -
174 -(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:518px" %)
175 -|=(% style="width: 40px;background-color:#4F81BD;color:white" %)Address|=(% style="width: 59.75px; background-color: rgb(79, 129, 189); color: white;" %)Function code|=(% style="width: 59.75px; background-color: rgb(79, 129, 189); color: white;" %)Data length|=(% style="width: 59.75px; background-color: rgb(79, 129, 189); color: white;" %)Register 0 Data high|=(% style="width: 59.75px; background-color: rgb(79, 129, 189); color: white;" %)Register 0 Data low|=(% style="width: 59.75px; background-color: rgb(79, 129, 189); color: white;" %)Register 1 Data high|=(% style="width: 59.75px; background-color: rgb(79, 129, 189); color: white;" %)Register 1 Data low|=(% style="width: 59.75px; background-color: rgb(79, 129, 189); color: white;" %)CRC16 low|=(% style="width: 59.75px; background-color: rgb(79, 129, 189); color: white;" %)CRC16 high
176 -|(% style="width:99px" %)0X11|(% style="width:72px" %)0X03|(% style="width:68px" %)0X04|(% style="width:70px" %)0X02|(% style="width:72px" %)0XAE|(% style="width:56px" %)0X01|(% style="width:56px" %)0X64|(% style="width:56px" %)0X8B|(% style="width:56px" %)0XD0
177 -
178 178  The address of the EC K10 sensor is 11
179 179  
180 180  The query data command is 11 03 00 00 00 02 C6 9B
181 181  
182 -**For example**, the returned data is 11 03 04 (% style="color:red" %)**02 AE**(%%) 01 64 8B D0. 02 AE is converted to decimal 686,  K=10, EC: 6860uS/cm,temperature: 35.6℃ Convert the returned data to decimal and divide by 10.
156 +For example, the returned data is 11 03 04 (% style="color:red" %)**02 AE**(%%) 01 64 8B D0. 02 AE is converted to decimal 686,  K=10, EC: 6860uS/cm
183 183  
184 184  
185 -Query the data (EC,temperature) of the sensor (address 11), host → slave
186 -
187 -(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:518px" %)
188 -|=(% style="width: 42px;background-color:#4F81BD;color:white" %)Address|=(% style="width: 68px; background-color: rgb(79, 129, 189); color: white;" %)Function code|=(% style="width: 68px; background-color: rgb(79, 129, 189); color: white;" %)Starting register address high|=(% style="width: 68px; background-color: rgb(79, 129, 189); color: white;" %)Starting register address low|=(% style="width: 68px; background-color: rgb(79, 129, 189); color: white;" %)Register length high|=(% style="width: 68px; background-color: rgb(79, 129, 189); color: white;" %)Register length low|=(% style="width: 68px; background-color: rgb(79, 129, 189); color: white;" %)CRC16 low|=(% style="width: 68px; background-color: rgb(79, 129, 189); color: white;" %)CRC16 high
189 -|(% style="width:99px" %)0X12|(% style="width:72px" %)0X03|(% style="width:64px" %)0X00|(% style="width:68px" %)0X00|(% style="width:70px" %)0X00|(% style="width:72px" %)0X02|(% style="width:56px" %)0XC6|(% style="width:56px" %)0XA8
190 -
191 -If the sensor receives correctly, the following data will be returned, slave → host
192 -
193 -(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:518px" %)
194 -|=(% style="width: 40px;background-color:#4F81BD;color:white" %)Address|=(% style="width: 59.75px; background-color: rgb(79, 129, 189); color: white;" %)Function code|=(% style="width: 59.75px; background-color: rgb(79, 129, 189); color: white;" %)Data length|=(% style="width: 59.75px; background-color: rgb(79, 129, 189); color: white;" %)Register 0 Data high|=(% style="width: 59.75px; background-color: rgb(79, 129, 189); color: white;" %)Register 0 Data low|=(% style="width: 59.75px; background-color: rgb(79, 129, 189); color: white;" %)Register 1 Data high|=(% style="width: 59.75px; background-color: rgb(79, 129, 189); color: white;" %)Register 1 Data low|=(% style="width: 59.75px; background-color: rgb(79, 129, 189); color: white;" %)CRC16 low|=(% style="width: 59.75px; background-color: rgb(79, 129, 189); color: white;" %)CRC16 high
195 -|(% style="width:99px" %)0X12|(% style="width:72px" %)0X03|(% style="width:68px" %)0X04|(% style="width:70px" %)0X02|(% style="width:72px" %)0XAE|(% style="width:56px" %)0X01|(% style="width:56px" %)0X64|(% style="width:56px" %)0XB8|(% style="width:56px" %)0XD0
196 -
197 197  The address of the EC K1 sensor is 12
198 198  
199 199  The query data command is 12 03 00 00 00 02 C6 A8
200 200  
201 -**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,temperature: 35.6℃ Convert the returned data to decimal and divide by 10.
163 +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
202 202  
203 203  
204 204  === 1.7.5 Calibration Method ===
... ... @@ -206,212 +206,59 @@
206 206  
207 207  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.
208 208  
209 -(% style="color:blue" %)**The calibration steps are as follows:**
210 -
171 +The calibration steps are as follows:
211 211  (1) Place the electrode in distilled water and clean it. When mileage 1~~2000 uses 1413μS/cm standard solution, enter the following calibration command after the data is stable.
212 212  
213 -(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:518px" %)
214 -|=(% style="width: 42px;background-color:#4F81BD;color:white" %)Address|=(% style="width: 53px;background-color:#4F81BD;color:white" %)Function code|=(% style="width: 53px;background-color:#4F81BD;color:white" %)Address high|=(% style="width: 53px;background-color:#4F81BD;color:white" %)Address low|=(% style="width: 53px;background-color:#4F81BD;color:white" %)Quantity high|=(% style="width: 53px; background-color: rgb(79, 129, 189); color: white;" %)Quantity low|=(% style="width: 53px; background-color: rgb(79, 129, 189); color: white;" %)Data length|=(% style="width: 53px;background-color:#4F81BD;color:white" %)Data|=(% style="width: 53px;background-color:#4F81BD;color:white" %)CRC16 low|=(% style="width: 53px;background-color:#4F81BD;color:white" %)CRC16 high
174 +(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:676.25px" %)
175 +|=(% 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: 139.083px; background-color: rgb(79, 129, 189); color: white;" %)Data length|=(% style="width: 50px;background-color:#4F81BD;color:white" %)Data|=(% style="width: 50px;background-color:#4F81BD;color:white" %)CRC16 low|=(% style="width: 50px;background-color:#4F81BD;color:white" %)CRC16 high
215 215  |(% style="width:99px" %)0X12|(% style="width:112px" %)0X10|(% style="width:135px" %)0X00|(% style="width:126px" %)0X26|(% style="width:85px" %)0X00|(% style="width:1px" %)0X02|(% style="width:1px" %)0X04|(% style="width:1px" %)(((
216 216  0X00
178 +
217 217  0X00
180 +
218 218  0X37
182 +
219 219  0X32
220 220  )))|(% style="width:1px" %)0XBD|(% style="width:1px" %)0XFC
221 221  
222 222  1413*10 gives 0X00003732
223 223  
224 -**response:**
188 +response
225 225  
226 -(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:518px" %)
227 -|=(% style="width: 42px;background-color:#4F81BD;color:white" %)Address|=(% style="width: 68px;background-color:#4F81BD;color:white" %)Function code|=(% style="width: 68px;background-color:#4F81BD;color:white" %)Address high|=(% style="width: 68px;background-color:#4F81BD;color:white" %)Address low|=(% style="width: 68px;background-color:#4F81BD;color:white" %)Quantity high|=(% style="width: 68px; background-color: rgb(79, 129, 189); color: white;" %)Quantity low|=(% style="width: 68px;background-color:#4F81BD;color:white" %)CRC16 low|=(% style="width: 68px;background-color:#4F81BD;color:white" %)CRC16 high
190 +(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:676.25px" %)
191 +|=(% 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
228 228  |(% style="width:99px" %)0X12|(% style="width:112px" %)0X10|(% style="width:135px" %)0X00|(% style="width:126px" %)0X26|(% style="width:85px" %)0X00|(% style="width:1px" %)0X02|(% style="width:1px" %)0XA2|(% style="width:1px" %)0XA0
229 229  
230 230  (2) Place the electrode in distilled water to clean it. Use 12.88mS/cm standard solution for the range of 10~~20000. After the data is stable, enter the following calibration command
231 231  
232 -(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:518px" %)
233 -|=(% style="width: 42px;background-color:#4F81BD;color:white" %)Address|=(% style="width: 53px;background-color:#4F81BD;color:white" %)Function code|=(% style="width: 53px;background-color:#4F81BD;color:white" %)Address high|=(% style="width: 53px;background-color:#4F81BD;color:white" %)Address low|=(% style="width: 53px;background-color:#4F81BD;color:white" %)Quantity high|=(% style="width: 53px; background-color: rgb(79, 129, 189); color: white;" %)Quantity low|=(% style="width: 53px; background-color: rgb(79, 129, 189); color: white;" %)Data length|=(% style="width: 53px;background-color:#4F81BD;color:white" %)Data|=(% style="width: 53px;background-color:#4F81BD;color:white" %)CRC16 low|=(% style="width: 53px;background-color:#4F81BD;color:white" %)CRC16 high
196 +(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:676.25px" %)
197 +|=(% 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: 139.083px; background-color: rgb(79, 129, 189); color: white;" %)Data length|=(% style="width: 50px;background-color:#4F81BD;color:white" %)Data|=(% style="width: 50px;background-color:#4F81BD;color:white" %)CRC16 low|=(% style="width: 50px;background-color:#4F81BD;color:white" %)CRC16 high
234 234  |(% style="width:99px" %)0X11|(% style="width:112px" %)0X10|(% style="width:135px" %)0X00|(% style="width:126px" %)0X26|(% style="width:85px" %)0X00|(% style="width:1px" %)0X02|(% style="width:1px" %)0X04|(% style="width:1px" %)(((
235 235  0X00
200 +
236 236  0X01
202 +
237 237  0XF7
204 +
238 238  0X20
239 239  )))|(% style="width:1px" %)0X33|(% style="width:1px" %)0X75
240 240  
241 241  12880*10 gives 0X01F720
242 242  
243 -**response:**
210 +response
244 244  
245 -(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:518px" %)
246 -|=(% style="width: 42px;background-color:#4F81BD;color:white" %)Address|=(% style="width: 68px;background-color:#4F81BD;color:white" %)Function code|=(% style="width: 68px;background-color:#4F81BD;color:white" %)Address high|=(% style="width: 68px;background-color:#4F81BD;color:white" %)Address low|=(% style="width: 68px;background-color:#4F81BD;color:white" %)Quantity high|=(% style="width: 68px; background-color: rgb(79, 129, 189); color: white;" %)Quantity low|=(% style="width: 68px;background-color:#4F81BD;color:white" %)CRC16 low|=(% style="width: 68px;background-color:#4F81BD;color:white" %)CRC16 high
212 +(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:676.25px" %)
213 +|=(% 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
247 247  |(% 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
248 248  
216 +
249 249  = 2. DR-PH01 Water PH Sensor =
250 250  
251 -== 2.1 Specification ==
219 +== 2.7 RS485 Commands ==
252 252  
253 253  
254 -* **Power Input**: DC7~~30
222 +The address of the pH  sensor is 10
255 255  
256 -* **Power Consumption** : < 0.5W
257 -
258 -* **Interface**: RS485. 9600 Baud Rate
259 -
260 -* **pH measurement range**: 0~~14.00pH; resolution: 0.01pH
261 -
262 -* **pH measurement error**: ±0.15pH
263 -
264 -* **Repeatability error**: ±0.02pH
265 -
266 -* **Temperature measurement range**:0~~60°C; resolution: 0.1°C (set temperature for manual temperature compensation, default 25°C)
267 -
268 -* **Temperature measurement error**: ±0.5°C
269 -
270 -* **Working environment:**
271 -** Ambient Temperature: 0–60°C
272 -** Relative Humidity: <85% RH(Specifically refers to the cable male and female)
273 -
274 -* **Temperature Accuracy: **±0.5 °C
275 -
276 -* **IP Rated**: IP68
277 -
278 -* **Max Pressure**: 0.6MPa
279 -
280 -== 2.2 Wiring ==
281 -
282 -
283 -[[image:image-20240720172548-2.png||height="348" width="571"]]
284 -
285 -
286 -== 2.3 Mechinical Drawing ==
287 -
288 -
289 -[[image:image-20240714174241-2.png]]
290 -
291 -
292 -== 2.4 Installation Notice ==
293 -
294 -
295 -Do not power on while connect the cables. Double check the wiring before power on.
296 -
297 -Installation Photo as reference:
298 -
299 -(% style="color:blue" %)**Submerged installation:**
300 -
301 -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.
302 -
303 -[[image:image-20240718191348-6.png]]
304 -
305 -(% style="color:blue" %)**Pipeline installation:**
306 -
307 -Connect the equipment to the pipeline through the 3/4 thread.
308 -
309 -[[image:image-20240718191336-5.png||height="239" width="326"]]
310 -
311 -(% style="color:blue" %)**Sampling:**
312 -
313 -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.
314 -
315 -(% style="color:blue" %)**Measure the pH of the water sample:**
316 -
317 -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.
318 -
319 -
320 -== 2.5 Maintenance ==
321 -
322 -
323 -* The equipment itself generally does not require daily maintenance. When an obvious fault occurs, please do not open it and repair it yourself. Contact us as soon as possible!
324 -
325 -* There is an appropriate amount of soaking solution in the protective bottle at the front end of the electrode. The electrode head is soaked in it to keep the glass bulb and the liquid junction activated. When measuring, loosen the bottle cap, pull out the electrode, and rinse it with pure water before use.
326 -
327 -* Preparation of electrode soaking solution: Take a packet of PH4.00 buffer, dissolve it in 250 ml of pure water, and soak it in 3M potassium chloride solution. The preparation is as follows: Take 25 grams of analytical pure potassium chloride and dissolve it in 100 ml of pure water.
328 -
329 -* The glass bulb at the front end of the electrode cannot come into contact with hard objects. Any damage and scratches will make the electrode ineffective.
330 -
331 -* Before measurement, the bubbles in the electrode glass bulb should be shaken off, otherwise it will affect the measurement. When measuring, the electrode should be stirred in the measured solution and then placed still to accelerate the response.
332 -
333 -* The electrode should be cleaned with deionized water before and after measurement to ensure accuracy.
334 -
335 -* After long-term use, the pH electrode will become passivated, which is characterized by a decrease in sensitivity gradient, slow response, and inaccurate readings. At this time, the bulb at the bottom of the electrode can be soaked in 0.1M dilute hydrochloric acid for 24 hours (0.1M dilute hydrochloric acid preparation: 9 ml of hydrochloric acid is diluted to 1000 ml with distilled water), and then soaked in 3.3M potassium chloride solution for 24 hours. If the pH electrode is seriously passivated and soaking in 0.1M hydrochloric acid has no effect, the pH electrode bulb can be soaked in 4% HF (hydrofluoric acid) for 3-5 seconds, washed with pure water, and then soaked in 3.3M potassium chloride solution for 24 hours to restore its performance.
336 -
337 -* Glass bulb contamination or liquid junction blockage can also cause electrode passivation. At this time, it should be cleaned with an appropriate solution according to the nature of the contaminant.
338 -
339 -* The equipment should be calibrated before each use. For long-term use, it is recommended to calibrate once every 3 months. The calibration frequency should be adjusted appropriately according to different application conditions (degree of dirt in the application, deposition of chemical substances, etc.). After aging, the electrodes should be replaced in time.
340 -
341 -== 2.6 RS485 Commands ==
342 -
343 -
344 -RS485 signaldefault address 0x10
345 -Standard Modbus-RTU protocol, baud rate: 9600; check bit: none; data bit: 8; stop bit: 1
346 -
347 -
348 -=== 2.6.1 Query address ===
349 -
350 -
351 -**send:**
352 -
353 -(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:518px" %)
354 -|=(% style="width: 64.75px;background-color:#4F81BD;color:white" %)Original address|=(% style="width: 64.75px;background-color:#4F81BD;color:white" %)Function code|=(% style="width: 64.75px;background-color:#4F81BD;color:white" %)Address high|=(% style="width: 64.75px;background-color:#4F81BD;color:white" %)Address low|=(% style="width: 64.75px;background-color:#4F81BD;color:white" %)Quantity high|=(% style="width: 64.75px; background-color: rgb(79, 129, 189); color: white;" %)Quantity low|=(% style="width: 64.75px;background-color:#4F81BD;color:white" %)CRC16 low|=(% style="width: 64.75px;background-color:#4F81BD;color:white" %)CRC16 high
355 -|(% style="width:99px" %)0XFE |(% style="width:112px" %)0X03|(% style="width:135px" %)0X00|(% style="width:126px" %)0X50|(% style="width:85px" %)0X00|(% style="width:1px" %)0X00|(% style="width:1px" %)0X51|(% style="width:1px" %)0XD4
356 -
357 -**response:**
358 -
359 -(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:518px" %)
360 -|=(% style="width: 103.6px;background-color:#4F81BD;color:white" %)New address|=(% style="width: 103.6px;background-color:#4F81BD;color:white" %)Function code|=(% style="width: 103.6px; background-color: rgb(79, 129, 189); color: white;" %)Data length|=(% style="width: 103.6px; background-color: rgb(79, 129, 189); color: white;" %)CRC16 low|=(% style="width: 103.6px; background-color: rgb(79, 129, 189); color: white;" %)CRC16 high
361 -|(% style="width:99px" %)0X01|(% style="width:112px" %)0X03|(% style="width:106px" %)0X00|(% style="width:93px" %)0X20|(% style="width:104px" %)0XF0
362 -
363 -=== 2.6.2 Change address ===
364 -
365 -
366 -For example: Change the address of the sensor with address 1 to 2, master → slave
367 -
368 -(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:518px" %)
369 -|=(% style="width: 64.75px;background-color:#4F81BD;color:white" %)Original address|=(% style="width: 64.75px;background-color:#4F81BD;color:white" %)Function code|=(% style="width: 64.75px;background-color:#4F81BD;color:white" %)Address high|=(% style="width: 64.75px;background-color:#4F81BD;color:white" %)Address low|=(% style="width: 64.75px;background-color:#4F81BD;color:white" %)Quantity high|=(% style="width: 64.75px; background-color: rgb(79, 129, 189); color: white;" %)Quantity low|=(% style="width: 64.75px;background-color:#4F81BD;color:white" %)CRC16 low|=(% style="width: 64.75px;background-color:#4F81BD;color:white" %)CRC16 high
370 -|(% style="width:99px" %)0X01|(% style="width:112px" %)0X06|(% style="width:135px" %)0X00|(% style="width:126px" %)0X50|(% style="width:85px" %)0X00|(% style="width:1px" %)0X02|(% style="width:1px" %)0X08|(% style="width:1px" %)0X1A
371 -
372 -If the sensor receives correctly, the data is returned along the original path.
373 -
374 -(% style="color:red" %)**Note: If you forget the original address of the sensor, you can use the broadcast address 0XFE instead. When using 0XFE, the host can only connect to one slave, and the return address is still the original address, which can be used as a method of address query.**
375 -
376 -
377 -=== 2.6.3 Modify intercept ===
378 -
379 -
380 -**send:**
381 -
382 -(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:518px" %)
383 -|=(% style="width: 44.75px; background-color: rgb(79, 129, 189); color: white;" %)Address|=(% style="width: 64.75px; background-color: rgb(79, 129, 189); color: white;" %)Function code|=(% style="width: 69.75px; background-color: rgb(79, 129, 189); color: white;" %)Starting register address high|=(% style="width: 69.75px; background-color: rgb(79, 129, 189); color: white;" %)Starting register address  low|=(% style="width: 69.75px; background-color: rgb(79, 129, 189); color: white;" %)Register Length high|=(% style="width: 69.75px; background-color: rgb(79, 129, 189); color: white;" %)Register Length low|=(% style="width: 64.75px; background-color: rgb(79, 129, 189); color: white;" %)CRC16 low|=(% style="width: 64.75px; background-color: rgb(79, 129, 189); color: white;" %)CRC16 high
384 -|(% style="width:71px" %)0X10|(% style="width:74px" %)0X06|(% style="width:67px" %)0X00|(% style="width:68px" %)0X10|(% style="width:69px" %)0X00|(% style="width:66px" %)0X64|(% style="width:57px" %)0X8A|(% style="width:57px" %)(((
385 -0XA5
386 -)))
387 -
388 -Change the intercept of the sensor at address 10 to 1 (default is 0). You need to pass the intercept 1*100 =100 into the command 0x006.
389 -
390 -**response:**
391 -
392 -(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:518px" %)
393 -|=(% style="width: 42px;background-color:#4F81BD;color:white" %)Address|=(% style="width: 68px;background-color:#4F81BD;color:white" %)Function code|=(% style="width: 68px;background-color:#4F81BD;color:white" %)Address high|=(% style="width: 68px;background-color:#4F81BD;color:white" %)Address low|=(% style="width: 68px;background-color:#4F81BD;color:white" %)Quantity high|=(% style="width: 68px; background-color: rgb(79, 129, 189); color: white;" %)Quantity low|=(% style="width: 68px;background-color:#4F81BD;color:white" %)CRC16 low|=(% style="width: 68px;background-color:#4F81BD;color:white" %)CRC16 high
394 -|(% style="width:99px" %)0X10|(% style="width:112px" %)0X06|(% style="width:135px" %)(((
395 -0X00
396 -)))|(% style="width:126px" %)0X10|(% style="width:85px" %)0X00|(% style="width:1px" %)0X64|(% style="width:1px" %)0X8A|(% style="width:1px" %)(((
397 -0XA5
398 -)))
399 -
400 -=== 2.6.4 Query data ===
401 -
402 -
403 -Query the data (PH) of the sensor (address 10), host → slave
404 -
405 -(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:518px" %)
406 -|=(% style="width: 42px;background-color:#4F81BD;color:white" %)Address|=(% style="width: 68px; background-color: rgb(79, 129, 189); color: white;" %)Function code|=(% style="width: 68px; background-color: rgb(79, 129, 189); color: white;" %)Starting register address high|=(% style="width: 68px; background-color: rgb(79, 129, 189); color: white;" %)Starting register address low|=(% style="width: 68px; background-color: rgb(79, 129, 189); color: white;" %)Register length high|=(% style="width: 68px; background-color: rgb(79, 129, 189); color: white;" %)Register length low|=(% style="width: 68px; background-color: rgb(79, 129, 189); color: white;" %)CRC16 low|=(% style="width: 68px; background-color: rgb(79, 129, 189); color: white;" %)CRC16 high
407 -|(% style="width:99px" %)0X10|(% style="width:72px" %)0X03|(% style="width:64px" %)0X00|(% style="width:68px" %)0X00|(% style="width:70px" %)0X00|(% style="width:72px" %)0X01|(% style="width:56px" %)0X87|(% style="width:56px" %)0X4B
408 -
409 -If the sensor receives correctly, the following data will be returned, slave → host
410 -
411 -(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:518px" %)
412 -|=(% style="width: 44px;background-color:#4F81BD;color:white" %)Address|=(% style="width: 79px; background-color: rgb(79, 129, 189); color: white;" %)Function code|=(% style="width: 79px; background-color: rgb(79, 129, 189); color: white;" %)Data length|=(% style="width: 79px; background-color: rgb(79, 129, 189); color: white;" %)Register 0 Data high|=(% style="width: 79px; background-color: rgb(79, 129, 189); color: white;" %)Register 0 Data low|=(% style="width: 79px; background-color: rgb(79, 129, 189); color: white;" %)CRC16 low|=(% style="width: 79px; background-color: rgb(79, 129, 189); color: white;" %)CRC16 high
413 -|(% style="width:99px" %)0X10|(% style="width:72px" %)0X03|(% style="width:68px" %)0X02|(% style="width:70px" %)0X02|(% style="width:72px" %)0XAE|(% style="width:56px" %)0XC4|(% style="width:56px" %)0X9B
414 -
415 415  The query data command is 10 03 00 00 00 01 87 4B. After the query, 7 bytes will be returned.
416 416  
417 417  For example, the returned data is 10 03 02 (% style="color:red" %)**02 AE**(%%) C4 9B.
... ... @@ -419,199 +419,13 @@
419 419  02 AE is the pH value, which is converted into decimal to get 686, and then two decimal places are added to get the actual value. 02 AE means the current pH value is 6.86.
420 420  
421 421  
422 -=== 2.6.5 Calibration Method ===
423 -
424 -
425 -This device uses three-point calibration, and three known pH standard solutions need to be prepared.
426 -
427 -(% style="color:blue" %)**The calibration steps are as follows:**
428 -
429 -(1) Place the electrode in distilled water to clean it, and then place it in 9.18 standard buffer solution. After the data stabilizes, enter the following calibration command, and the 9.18 calibration is completed.
430 -
431 -(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:518px" %)
432 -|=(% style="width: 61px; background-color: rgb(79, 129, 189); color: white;" %)Address|=(% style="width: 72px; background-color: rgb(79, 129, 189); color: white;" %)Function code|=(% style="width: 66px; background-color: rgb(79, 129, 189); color: white;" %)Address high|=(% style="width: 68px; background-color: rgb(79, 129, 189); color: white;" %)Address low|=(% style="width: 72px; background-color: rgb(79, 129, 189); color: white;" %)Quantity high|=(% style="width: 70px; background-color: rgb(79, 129, 189); color: white;" %)Quantity low|=(% style="width: 55px; background-color: rgb(79, 129, 189); color: white;" %)CRC16 low|=(% style="width: 55px; background-color: rgb(79, 129, 189); color: white;" %)CRC16 high
433 -|(% style="width:64px" %)0X10|(% style="width:72px" %)0X06|(% style="width:66px" %)(((
434 -0X00
435 -)))|(% style="width:68px" %)0X20|(% style="width:72px" %)0XFF|(% style="width:70px" %)0XFF|(% style="width:55px" %)0X8A|(% style="width:55px" %)(((
436 -0XF1
437 -)))
438 -
439 -(2) Wash the electrode in distilled water and place it in 6.86 standard buffer. After the data stabilizes, enter the following calibration command. The 6.86 calibration is completed.
440 -
441 -(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:518px" %)
442 -|=(% style="width: 61px; background-color: rgb(79, 129, 189); color: white;" %)Address|=(% style="width: 72px; background-color: rgb(79, 129, 189); color: white;" %)Function code|=(% style="width: 66px; background-color: rgb(79, 129, 189); color: white;" %)Address high|=(% style="width: 68px; background-color: rgb(79, 129, 189); color: white;" %)Address low|=(% style="width: 72px; background-color: rgb(79, 129, 189); color: white;" %)Quantity high|=(% style="width: 70px; background-color: rgb(79, 129, 189); color: white;" %)Quantity low|=(% style="width: 55px; background-color: rgb(79, 129, 189); color: white;" %)CRC16 low|=(% style="width: 55px; background-color: rgb(79, 129, 189); color: white;" %)CRC16 high
443 -|(% style="width:64px" %)0X10|(% style="width:72px" %)0X06|(% style="width:66px" %)(((
444 -0X00
445 -)))|(% style="width:68px" %)0X21|(% style="width:72px" %)0XFF|(% style="width:70px" %)0XFF|(% style="width:55px" %)0XDB|(% style="width:55px" %)(((
446 -0X31
447 -)))
448 -
449 -(3) Wash the electrode in distilled water and place it in 4.01 standard buffer. After the data stabilizes, enter the following calibration command, and the 4.00 calibration is completed.
450 -
451 -(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:518px" %)
452 -|=(% style="width: 61px; background-color: rgb(79, 129, 189); color: white;" %)Address|=(% style="width: 72px; background-color: rgb(79, 129, 189); color: white;" %)Function code|=(% style="width: 66px; background-color: rgb(79, 129, 189); color: white;" %)Address high|=(% style="width: 68px; background-color: rgb(79, 129, 189); color: white;" %)Address low|=(% style="width: 72px; background-color: rgb(79, 129, 189); color: white;" %)Quantity high|=(% style="width: 70px; background-color: rgb(79, 129, 189); color: white;" %)Quantity low|=(% style="width: 55px; background-color: rgb(79, 129, 189); color: white;" %)CRC16 low|=(% style="width: 55px; background-color: rgb(79, 129, 189); color: white;" %)CRC16 high
453 -|(% style="width:64px" %)0X10|(% style="width:72px" %)0X06|(% style="width:66px" %)(((
454 -0X00
455 -)))|(% style="width:68px" %)0X22|(% style="width:72px" %)0XFF|(% style="width:70px" %)0XFF|(% style="width:55px" %)0X2B|(% style="width:55px" %)(((
456 -0X31
457 -)))
458 -
459 -After the above three steps are completed, the calibration is successful. The advantage of three-point calibration compared to two-point calibration is that the electrode is calibrated separately in the acid and alkali parts, thereby achieving accurate calibration of the full range and making the measurement data more accurate.
460 -
461 -
462 462  = 3. DR-ORP1 Water ORP Sensor =
463 463  
464 -== 3.1 Specification ==
233 +== 3.7 RS485 Commands ==
465 465  
466 466  
467 -* **Power Input**: DC7~~30
236 +The address of the ORP sensor is 13
468 468  
469 -* **Measuring range**:** **-1999~~1999mV
470 -
471 -* **Resolution**: 1mV
472 -
473 -* **Interface**: RS485. 9600 Baud Rate
474 -
475 -* **Measurement error**: ±3mV
476 -
477 -* **Stability**: ≤2mv/24 hours
478 -
479 -* **Working environment:**
480 -** Ambient Temperature: 0–60°C
481 -** Relative Humidity: <85% RH(Specifically refers to the cable male and female)
482 -
483 -* **IP Rated**: IP68
484 -
485 -* **Max Pressure**: 0.6MPa
486 -
487 -== 3.2 Wiring ==
488 -
489 -
490 -[[image:image-20240720172620-3.png||height="378" width="620"]]
491 -
492 -
493 -== 3.3 Mechinical Drawing ==
494 -
495 -
496 -[[image:image-20240714174241-2.png]]
497 -
498 -
499 -== 3.4 Installation Notice ==
500 -
501 -
502 -Do not power on while connect the cables. Double check the wiring before power on.
503 -
504 -**Installation Photo as reference:**
505 -
506 -(% style="color:blue" %)** Submerged installation:**
507 -
508 -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.
509 -
510 -[[image:image-20240718191348-6.png]]
511 -
512 -(% style="color:blue" %)** Pipeline installation:**
513 -
514 -Connect the equipment to the pipeline through the 3/4 thread.
515 -
516 -[[image:image-20240718191336-5.png||height="239" width="326"]]
517 -
518 -
519 -== 3.5 Maintenance ==
520 -
521 -
522 -(1) The equipment itself generally does not require daily maintenance. When an obvious fault occurs, please do not open it and repair it yourself, and contact us as soon as possible.
523 -
524 -(2) In general, ORP electrodes do not need to be calibrated and can be used directly. When there is doubt about the quality and test results of the ORP electrode, the electrode potential can be checked with an ORP standard solution to determine whether the ORP electrode meets the measurement requirements, and the electrode can be recalibrated or replaced with a new ORP electrode. The frequency of calibration or inspection of the measuring electrode depends on different application conditions (the degree of dirt in the application, the deposition of chemical substances, etc.).
525 -
526 -(3) There is an appropriate soaking solution in the protective bottle at the front end of the electrode, and the electrode head is soaked in it to ensure the activation of the platinum sheet and the liquid junction. When measuring, loosen the bottle cap, pull out the electrode, and rinse it with pure water before use.
527 -
528 -(4) Preparation of electrode soaking solution: Take 25 grams of analytical pure potassium chloride and dissolve it in 100 ml of pure water to prepare a 3.3M potassium chloride solution.
529 -
530 -(5) Before measuring, the bubbles in the electrode glass bulb should be shaken off, otherwise it will affect the measurement. When measuring, the electrode should be stirred in the measured solution and then placed still to accelerate the response.
531 -
532 -(6) The electrode should be cleaned with deionized water before and after the measurement to ensure the measurement accuracy.
533 -
534 -(7) After long-term use, the ORP electrode will be passivated, which is manifested as a decrease in sensitivity gradient, slow response, and inaccurate readings. At this time, the platinum sheet at the bottom of the electrode can be soaked in 0.1M dilute hydrochloric acid for 24 hours (0.1M dilute hydrochloric acid preparation: 9 ml of hydrochloric acid is diluted to 1000 ml with distilled water), and then soaked in 3.3M potassium chloride solution for 24 hours to restore its performance.
535 -
536 -(8) Electrode contamination or liquid junction blockage can also cause electrode passivation. At this time, it should be cleaned with an appropriate solution according to the nature of the contaminant. If the platinum of the electrode is severely contaminated and an oxide film is formed, toothpaste can be applied to the platinum surface and then gently scrubbed to restore the platinum's luster.
537 -
538 -(9) The equipment should be calibrated before each use. It is recommended to calibrate once every 3 months for long-term use. The calibration frequency should be adjusted appropriately according to different application conditions (degree of dirt in the application, deposition of chemical substances, etc.). After aging, the electrodes should be replaced in time.
539 -
540 -
541 -== 3.6 RS485 Commands ==
542 -
543 -
544 -RS485 signaldefault address 0x13
545 -Standard Modbus-RTU protocol, baud rate: 9600; check bit: none; data bit: 8; stop bit: 1
546 -
547 -
548 -=== 3.6.1 Query address ===
549 -
550 -
551 -**send:**
552 -
553 -(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:518px" %)
554 -|=(% style="width: 64.75px;background-color:#4F81BD;color:white" %)Original address|=(% style="width: 64.75px;background-color:#4F81BD;color:white" %)Function code|=(% style="width: 64.75px;background-color:#4F81BD;color:white" %)Address high|=(% style="width: 64.75px;background-color:#4F81BD;color:white" %)Address low|=(% style="width: 64.75px;background-color:#4F81BD;color:white" %)Quantity high|=(% style="width: 64.75px; background-color: rgb(79, 129, 189); color: white;" %)Quantity low|=(% style="width: 64.75px;background-color:#4F81BD;color:white" %)CRC16 low|=(% style="width: 64.75px;background-color:#4F81BD;color:white" %)CRC16 high
555 -|(% style="width:99px" %)0XFE |(% style="width:112px" %)0X03|(% style="width:135px" %)0X00|(% style="width:126px" %)0X50|(% style="width:85px" %)0X00|(% style="width:1px" %)0X00|(% style="width:1px" %)0X51|(% style="width:1px" %)0XD4
556 -
557 -**response:**
558 -
559 -(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:518px" %)
560 -|=(% style="width: 103.6px;background-color:#4F81BD;color:white" %)New address|=(% style="width: 103.6px;background-color:#4F81BD;color:white" %)Function code|=(% style="width: 103.6px; background-color: rgb(79, 129, 189); color: white;" %)Data length|=(% style="width: 103.6px; background-color: rgb(79, 129, 189); color: white;" %)CRC16 low|=(% style="width: 103.6px; background-color: rgb(79, 129, 189); color: white;" %)CRC16 high
561 -|(% style="width:99px" %)0X01|(% style="width:112px" %)0X03|(% style="width:106px" %)0X00|(% style="width:93px" %)0X20|(% style="width:104px" %)0XF0
562 -
563 -=== 3.6.2 Change address ===
564 -
565 -
566 -For example: Change the address of the sensor with address 1 to 2, master → slave
567 -
568 -(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:518px" %)
569 -|=(% style="width: 64.75px;background-color:#4F81BD;color:white" %)Original address|=(% style="width: 64.75px;background-color:#4F81BD;color:white" %)Function code|=(% style="width: 64.75px;background-color:#4F81BD;color:white" %)Address high|=(% style="width: 64.75px;background-color:#4F81BD;color:white" %)Address low|=(% style="width: 64.75px;background-color:#4F81BD;color:white" %)Quantity high|=(% style="width: 64.75px; background-color: rgb(79, 129, 189); color: white;" %)Quantity low|=(% style="width: 64.75px;background-color:#4F81BD;color:white" %)CRC16 low|=(% style="width: 64.75px;background-color:#4F81BD;color:white" %)CRC16 high
570 -|(% style="width:99px" %)0X01|(% style="width:112px" %)0X06|(% style="width:135px" %)0X00|(% style="width:126px" %)0X50|(% style="width:85px" %)0X00|(% style="width:1px" %)0X02|(% style="width:1px" %)0X08|(% style="width:1px" %)0X1A
571 -
572 -If the sensor receives correctly, the data is returned along the original path.
573 -
574 -(% style="color:red" %)**Note: If you forget the original address of the sensor, you can use the broadcast address 0XFE instead. When using 0XFE, the host can only connect to one slave, and the return address is still the original address, which can be used as a method of address query.**
575 -
576 -
577 -=== 3.6.3 Modify intercept ===
578 -
579 -
580 -**send:**
581 -
582 -(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:518px" %)
583 -|=(% style="width: 42px;background-color:#4F81BD;color:white" %)Address|=(% style="width: 68px;background-color:#4F81BD;color:white" %)Function code|=(% style="width: 68px; background-color: rgb(79, 129, 189); color: white;" %)Starting register address high|=(% style="width: 68px; background-color: rgb(79, 129, 189); color: white;" %)Starting register address  low|=(% style="width: 68px; background-color: rgb(79, 129, 189); color: white;" %)Register Length high|=(% style="width: 68px; background-color: rgb(79, 129, 189); color: white;" %)Register Length low|=(% style="width: 68px;background-color:#4F81BD;color:white" %)CRC16 low|=(% style="width: 68px;background-color:#4F81BD;color:white" %)CRC16 high
584 -|(% style="width:99px" %)0X13|(% style="width:112px" %)0X06|(% style="width:135px" %)0X00|(% style="width:126px" %)0X10|(% style="width:85px" %)0X00|(% style="width:1px" %)0X64|(% style="width:1px" %)0X8A|(% style="width:1px" %)(((
585 -0X96
586 -)))
587 -
588 -Change the intercept of the sensor with address 1 to 10 (default 0), which is 0X000A in the command.
589 -
590 -**response:**
591 -
592 -(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:518px" %)
593 -|=(% style="width: 42px;background-color:#4F81BD;color:white" %)Address|=(% style="width: 68px;background-color:#4F81BD;color:white" %)Function code|=(% style="width: 68px;background-color:#4F81BD;color:white" %)Address high|=(% style="width: 68px;background-color:#4F81BD;color:white" %)Address low|=(% style="width: 68px;background-color:#4F81BD;color:white" %)Quantity high|=(% style="width:68px; background-color: rgb(79, 129, 189); color: white;" %)Quantity low|=(% style="width: 68px;background-color:#4F81BD;color:white" %)CRC16 low|=(% style="width: 68px;background-color:#4F81BD;color:white" %)CRC16 high
594 -|(% style="width:99px" %)0X13|(% style="width:112px" %)0X06|(% style="width:135px" %)(((
595 -0X00
596 -)))|(% style="width:126px" %)0X10|(% style="width:85px" %)0X00|(% style="width:1px" %)0X64|(% style="width:1px" %)0X8A|(% style="width:1px" %)(((
597 -0X96
598 -)))
599 -
600 -=== 3.6.4 Query data ===
601 -
602 -
603 -Query the data (ORP) of the sensor (address 13), host → slave
604 -
605 -(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:518px" %)
606 -|=(% style="width: 42px;background-color:#4F81BD;color:white" %)Address|=(% style="width: 68px; background-color: rgb(79, 129, 189); color: white;" %)Function code|=(% style="width: 68px; background-color: rgb(79, 129, 189); color: white;" %)Starting register address high|=(% style="width: 68px; background-color: rgb(79, 129, 189); color: white;" %)Starting register address low|=(% style="width: 68px; background-color: rgb(79, 129, 189); color: white;" %)Register length high|=(% style="width: 68px; background-color: rgb(79, 129, 189); color: white;" %)Register length low|=(% style="width: 68px; background-color: rgb(79, 129, 189); color: white;" %)CRC16 low|=(% style="width: 68px; background-color: rgb(79, 129, 189); color: white;" %)CRC16 high
607 -|(% style="width:99px" %)0X13|(% style="width:72px" %)0X03|(% style="width:64px" %)0X00|(% style="width:68px" %)0X00|(% style="width:70px" %)0X00|(% style="width:72px" %)0X01|(% style="width:56px" %)0X87|(% style="width:56px" %)0X78
608 -
609 -If the sensor receives correctly, the following data will be returned, slave → host
610 -
611 -(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:518px" %)
612 -|=(% style="width: 44px;background-color:#4F81BD;color:white" %)Address|=(% style="width: 79px; background-color: rgb(79, 129, 189); color: white;" %)Function code|=(% style="width: 79px; background-color: rgb(79, 129, 189); color: white;" %)Data length|=(% style="width: 79px; background-color: rgb(79, 129, 189); color: white;" %)Register 0 Data high|=(% style="width: 79px; background-color: rgb(79, 129, 189); color: white;" %)Register 0 Data low|=(% style="width: 79px; background-color: rgb(79, 129, 189); color: white;" %)CRC16 low|=(% style="width: 79px; background-color: rgb(79, 129, 189); color: white;" %)CRC16 high
613 -|(% style="width:99px" %)0X13|(% style="width:72px" %)0X03|(% style="width:68px" %)0X02|(% style="width:70px" %)0X02|(% style="width:72px" %)0XAE|(% style="width:56px" %)0X80|(% style="width:56px" %)0X9B
614 -
615 615  The query data command is 13 03 00 00 00 01 87 78
616 616  
617 617  For example, the returned data is 13 03 02 (% style="color:red" %)**02 AE**(%%) 80 9B.
... ... @@ -619,263 +619,27 @@
619 619  02 AE is the ORP value, converted to decimal, the actual value is 686, 02 AE means the current ORP value is 686mV
620 620  
621 621  
622 -=== 3.6.5 Calibration Method ===
623 -
624 -
625 -This device uses two-point calibration, and two known ORP standard solutions need to be prepared. The calibration steps are as follows:
626 -(1) Place the electrode in distilled water to clean it, and then place it in 86mV standard buffer solution. After the data stabilizes,
627 -enter the following calibration command, and the 86mV point calibration is completed;
628 -
629 -(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:518px" %)
630 -|=(% style="width: 42px; background-color: rgb(79, 129, 189); color: white;" %)Address|=(% style="width: 68px; background-color: rgb(79, 129, 189); color: white;" %)Function code|=(% style="width: 68px; background-color: rgb(79, 129, 189); color: white;" %)Address high|=(% style="width: 68px; background-color: rgb(79, 129, 189); color: white;" %)Address low|=(% style="width: 68px; background-color: rgb(79, 129, 189); color: white;" %)Quantity high|=(% style="width: 68px; background-color: rgb(79, 129, 189); color: white;" %)Quantity low|=(% style="width: 68px; background-color: rgb(79, 129, 189); color: white;" %)CRC16 low|=(% style="width: 68px; background-color: rgb(79, 129, 189); color: white;" %)CRC16 high
631 -|(% style="width:64px" %)0X13|(% style="width:72px" %)0X06|(% style="width:66px" %)(((
632 -0X00
633 -)))|(% style="width:68px" %)0X24|(% style="width:72px" %)0XFF|(% style="width:70px" %)0XFF|(% style="width:55px" %)0XCB|(% style="width:55px" %)(((
634 -0X03
635 -)))
636 -
637 -Wash the electrode in distilled water and place it in 256mV standard buffer. After the data is stable, enter the following calibration command to complete the 256mV point calibration.
638 -
639 -(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:518px" %)
640 -|=(% style="width: 42px; background-color: rgb(79, 129, 189); color: white;" %)Address|=(% style="width: 68px; background-color: rgb(79, 129, 189); color: white;" %)Function code|=(% style="width: 68px; background-color: rgb(79, 129, 189); color: white;" %)Address high|=(% style="width: 68px; background-color: rgb(79, 129, 189); color: white;" %)Address low|=(% style="width: 68px; background-color: rgb(79, 129, 189); color: white;" %)Quantity high|=(% style="width: 68px; background-color: rgb(79, 129, 189); color: white;" %)Quantity low|=(% style="width: 68px; background-color: rgb(79, 129, 189); color: white;" %)CRC16 low|=(% style="width: 68px; background-color: rgb(79, 129, 189); color: white;" %)CRC16 high
641 -|(% style="width:68px" %)0X13|(% style="width:72px" %)0X06|(% style="width:66px" %)(((
642 -0X00
643 -)))|(% style="width:68px" %)0X25|(% style="width:72px" %)0XFF|(% style="width:70px" %)0XFF|(% style="width:55px" %)0X9A|(% style="width:55px" %)(((
644 -0XC3
645 -)))
646 -
647 647  = 4. DR-DO1 Dissolved Oxygen Sensor =
648 648  
649 -== 4.1 Specification ==
247 +== 4.7 RS485 Commands ==
650 650  
651 651  
652 -* **Measuring range**: 0-20mg/L, 0–50℃
250 +The address of the dissolved oxygen sensor is 14
653 653  
654 -* **Accuracy**: 3%, ±0.5℃
252 +The query data command is 14 03 00 14 00 01 C6 CB
655 655  
656 -* **Resolution**: 0.01 mg/L, 0.01℃
657 -
658 -* **Maximum operating pressure**: 6 bar
659 -
660 -* **Output signal**: A: 4-20mA (current loop)B: RS485 (standard Modbus-RTU protocol, device default address: 01)
661 -
662 -* **Power supply voltage**: 5-24V DC
663 -
664 -* **Working environment:**
665 -** Ambient Temperature: 0–60°C
666 -** Relative Humidity: <85% RH(Specifically refers to the cable male and female)
667 -
668 -* **Power consumption**: ≤0.5W
669 -
670 -== 4.2 wiring ==
671 -
672 -
673 -[[image:image-20240720172632-4.png||height="390" width="640"]]
674 -
675 -
676 -== 4.3 Impedance requirements for current signals ==
677 -
678 -
679 -(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:400px" %)
680 -|(% style="width:132px" %)**Supply Voltage**|(% style="width:67px" %)**9V**|(% style="width:67px" %)**12V**|(% style="width:67px" %)**20V**|(% style="width:67px" %)**24V**
681 -|(% style="width:132px" %)**Max Impedance**|(% style="width:65px" %)**<250Ω**|(% style="width:67px" %)**<400Ω**|(% style="width:67px" %)**<500Ω**|(% style="width:65px" %)**<900Ω**
682 -
683 -== 4.4 Mechinical Drawing ==
684 -
685 -
686 -[[image:image-20240719155308-1.png||height="226" width="527"]]
687 -
688 -
689 -== 4.5 Instructions for use and maintenance ==
690 -
691 -
692 -* It can be directly put into water without adding a protective tube, ensuring the long-term stability, reliability and accuracy of the sensor.
693 -
694 -* If the water conditions are complex and you want accurate data, you need to wipe the sensor probe frequently.
695 -
696 -== 4.6 RS485 Commands ==
697 -
698 -
699 -RS485 signaldefault address 0x14
700 -Standard Modbus-RTU protocol, baud rate: 9600; check bit: none; data bit: 8; stop bit: 1
701 -
702 -
703 -=== 4.6.1 Query address ===
704 -
705 -
706 -**send:**
707 -
708 -(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:518px" %)
709 -|=(% style="width: 64.75px;background-color:#4F81BD;color:white" %)Original address|=(% style="width: 64.75px; background-color: rgb(79, 129, 189); color: white;" %)Function code|=(% style="width: 64.75px; background-color: rgb(79, 129, 189); color: white;" %)Register address high|=(% style="width: 64.75px; background-color: rgb(79, 129, 189); color: white;" %)Register address low|=(% style="width: 64.75px; background-color: rgb(79, 129, 189); color: white;" %)Register length high|=(% style="width: 64.75px; background-color: rgb(79, 129, 189); color: white;" %)Register length low|=(% style="width: 64.75px; background-color: rgb(79, 129, 189); color: white;" %)CRC16 low|=(% style="width: 64.75px; background-color: rgb(79, 129, 189); color: white;" %)CRC16 high
710 -|(% style="width:99px" %)0XFF|(% style="width:72px" %)0X03|(% style="width:64px" %)0X00|(% style="width:68px" %)0X0A|(% style="width:70px" %)0X00|(% style="width:72px" %)0X02|(% style="width:56px" %)0XF1|(% style="width:56px" %)0XD7
711 -
712 -If you forget the original address of the sensor, you can use the broadcast address 0XFF instead. When using 0XFE, the host can only connect to one slave, which can be used as a method of address query.
713 -
714 -
715 -**response:**
716 -
717 -Register 0 data high and register 0 data low indicate the actual address of the sensor: 1
718 -Register 1 data high and register 1 data low indicate the sensor version
719 -
720 -(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:518px" %)
721 -|=(% style="width: 40px;background-color:#4F81BD;color:white" %)Address|=(% style="width: 59.75px; background-color: rgb(79, 129, 189); color: white;" %)Function code|=(% style="width: 59.75px; background-color: rgb(79, 129, 189); color: white;" %)Data length|=(% style="width: 59.75px; background-color: rgb(79, 129, 189); color: white;" %)Register 0 Data high|=(% style="width: 59.75px; background-color: rgb(79, 129, 189); color: white;" %)Register 0 Data low|=(% style="width: 59.75px; background-color: rgb(79, 129, 189); color: white;" %)Register 1 Data high|=(% style="width: 59.75px; background-color: rgb(79, 129, 189); color: white;" %)Register 1 Data low|=(% style="width: 59.75px; background-color: rgb(79, 129, 189); color: white;" %)CRC16 low|=(% style="width: 59.75px; background-color: rgb(79, 129, 189); color: white;" %)CRC16 high
722 -|(% style="width:99px" %)0XFF|(% style="width:72px" %)0X03|(% style="width:64px" %)0X04|(% style="width:68px" %)0X00|(% style="width:70px" %)0X01|(% style="width:72px" %)0X00|(% style="width:56px" %)0X00|(% style="width:56px" %)0XB4|(% style="width:56px" %)0X3C
723 -
724 -=== 4.6.2 Change address ===
725 -
726 -
727 -For example: Change the address of the sensor with address 1 to 2(address range: 1-119), master → slave
728 -
729 -(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:518px" %)
730 -|=(% style="width: 40px; background-color: rgb(79, 129, 189); color: white;" %)Original address|=(% style="width: 40px; background-color: rgb(79, 129, 189); color: white;" %)Function code|=(% style="width: 40px; background-color: rgb(79, 129, 189); color: white;" %)Starting register address high|=(% style="width: 40px; background-color: rgb(79, 129, 189); color: white;" %)Starting register address low|=(% style="width: 40px; background-color: rgb(79, 129, 189); color: white;" %)Register length high|=(% style="width: 40px; background-color: rgb(79, 129, 189); color: white;" %)Register length low|=(% style="width: 40px; background-color: rgb(79, 129, 189); color: white;" %)Data length|=(% style="width: 40px; background-color: rgb(79, 129, 189); color: white;" %)Start address high|=(% style="width: 40px; background-color: rgb(79, 129, 189); color: white;" %)Start address low|=(% style="width: 40px; background-color: rgb(79, 129, 189); color: white;" %)Sensor version|=(% style="width: 40px; background-color: rgb(79, 129, 189); color: white;" %)Sensor version|=(% style="width: 39px; background-color: rgb(79, 129, 189); color: white;" %)CRC16 high|=(% style="width: 39px; background-color: rgb(79, 129, 189); color: white;" %)CRC16 low
731 -|(% style="width:67px" %)0X01|(% style="width:71px" %)0X10|(% style="width:65px" %)0X00|(% style="width:65px" %)0X0A|(% style="width:70px" %)0X00|(% style="width:72px" %)0X02|(% style="width:53px" %)0X04|(% style="width:53px" %)0X00|(% style="width:72px" %)0X02|(% style="width:53px" %)0X00|(% style="width:53px" %)0X00|(% style="width:56px" %)0XD2|(% style="width:53px" %)0X10
732 -
733 -**response:**
734 -
735 -(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:518px" %)
736 -|=(% style="width: 42px;background-color:#4F81BD;color:white" %)Address|=(% style="width: 68px; background-color: rgb(79, 129, 189); color: white;" %)Function code|=(% style="width: 68px; background-color: rgb(79, 129, 189); color: white;" %)Starting register address high|=(% style="width: 68px; background-color: rgb(79, 129, 189); color: white;" %)Starting register address low|=(% style="width: 68px; background-color: rgb(79, 129, 189); color: white;" %)Register length high|=(% style="width: 68px; background-color: rgb(79, 129, 189); color: white;" %)Register length low|=(% style="width: 68px; background-color: rgb(79, 129, 189); color: white;" %)CRC16 low|=(% style="width: 68px; background-color: rgb(79, 129, 189); color: white;" %)CRC16 high
737 -|(% style="width:99px" %)0X01|(% style="width:72px" %)0X10|(% style="width:64px" %)0X00|(% style="width:68px" %)0X0A|(% style="width:70px" %)0X00|(% style="width:72px" %)0X02|(% style="width:56px" %)0X61|(% style="width:56px" %)0XCA
738 -
739 -=== 4.6.3 Query data ===
740 -
741 -
742 -Query the data (dissolved oxygen) of the sensor (address 14), host → slave
743 -
744 -(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:518px" %)
745 -|=(% style="width: 42px;background-color:#4F81BD;color:white" %)Address|=(% style="width: 68px; background-color: rgb(79, 129, 189); color: white;" %)Function code|=(% style="width: 68px; background-color: rgb(79, 129, 189); color: white;" %)Starting register address high|=(% style="width: 68px; background-color: rgb(79, 129, 189); color: white;" %)Starting register address low|=(% style="width: 68px; background-color: rgb(79, 129, 189); color: white;" %)Register length high|=(% style="width: 68px; background-color: rgb(79, 129, 189); color: white;" %)Register length low|=(% style="width: 68px; background-color: rgb(79, 129, 189); color: white;" %)CRC16 low|=(% style="width: 68px; background-color: rgb(79, 129, 189); color: white;" %)CRC16 high
746 -|(% style="width:99px" %)0X14|(% style="width:72px" %)0X03|(% style="width:64px" %)0X00|(% style="width:68px" %)0X14|(% style="width:70px" %)0X00|(% style="width:72px" %)0X01|(% style="width:56px" %)0XC6|(% style="width:56px" %)0XCB
747 -
748 -If the sensor receives correctly, the following data will be returned, slave → host
749 -
750 -(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:518px" %)
751 -|=(% style="width: 44px;background-color:#4F81BD;color:white" %)Address|=(% style="width: 79px; background-color: rgb(79, 129, 189); color: white;" %)Function code|=(% style="width: 79px; background-color: rgb(79, 129, 189); color: white;" %)Data length|=(% style="width: 79px; background-color: rgb(79, 129, 189); color: white;" %)Register 0 Data high|=(% style="width: 79px; background-color: rgb(79, 129, 189); color: white;" %)Register 0 Data low|=(% style="width: 79px; background-color: rgb(79, 129, 189); color: white;" %)CRC16 low|=(% style="width: 79px; background-color: rgb(79, 129, 189); color: white;" %)CRC16 high
752 -|(% style="width:99px" %)0X14|(% style="width:72px" %)0X03|(% style="width:68px" %)0X02|(% style="width:70px" %)0X03|(% style="width:72px" %)0X78|(% style="width:56px" %)0XB5|(% style="width:56px" %)0X55
753 -
754 754  After the query, 7 bytes will be returned. For example, the returned data is 14 03 02 (% style="color:red" %)**03 78**(%%) B5 55. 03 78 is the value of dissolved oxygen.
755 755  
756 756  Converted to decimal, it is 888. Add two decimal places to get the actual value. 03 78 means the current dissolved oxygen is 8.88mg/L
757 757  
758 758  
759 -Query the data (temperature) of the sensor (address 14), host → slave
760 -
761 -(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:518px" %)
762 -|=(% style="width: 42px;background-color:#4F81BD;color:white" %)Address|=(% style="width: 68px; background-color: rgb(79, 129, 189); color: white;" %)Function code|=(% style="width: 68px; background-color: rgb(79, 129, 189); color: white;" %)Starting register address high|=(% style="width: 68px; background-color: rgb(79, 129, 189); color: white;" %)Starting register address low|=(% style="width: 68px; background-color: rgb(79, 129, 189); color: white;" %)Register length high|=(% style="width: 68px; background-color: rgb(79, 129, 189); color: white;" %)Register length low|=(% style="width: 68px; background-color: rgb(79, 129, 189); color: white;" %)CRC16 low|=(% style="width: 68px; background-color: rgb(79, 129, 189); color: white;" %)CRC16 high
763 -|(% style="width:99px" %)0X14|(% style="width:72px" %)0X03|(% style="width:64px" %)0X00|(% style="width:68px" %)0X11|(% style="width:70px" %)0X00|(% style="width:72px" %)0X01|(% style="width:56px" %)0XD6|(% style="width:56px" %)0XCA
764 -
765 -If the sensor receives correctly, the following data will be returned, slave → host
766 -
767 -(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:518px" %)
768 -|=(% style="width: 44px;background-color:#4F81BD;color:white" %)Address|=(% style="width: 79px; background-color: rgb(79, 129, 189); color: white;" %)Function code|=(% style="width: 79px; background-color: rgb(79, 129, 189); color: white;" %)Data length|=(% style="width: 79px; background-color: rgb(79, 129, 189); color: white;" %)Register 0 Data high|=(% style="width: 79px; background-color: rgb(79, 129, 189); color: white;" %)Register 0 Data low|=(% style="width: 79px; background-color: rgb(79, 129, 189); color: white;" %)CRC16 low|=(% style="width: 79px; background-color: rgb(79, 129, 189); color: white;" %)CRC16 high
769 -|(% style="width:99px" %)0X14|(% style="width:72px" %)0X03|(% style="width:68px" %)0X02|(% style="width:70px" %)0X09|(% style="width:72px" %)0XA4|(% style="width:56px" %)0XB2|(% style="width:56px" %)0X6C
770 -
771 -After the query, 7 bytes will be returned. For example, the returned data is 14 03 02 (% style="color:red" %)**09 A4**(%%) B2 6C. 03 78 is the value of dissolved oxygen temperature.
772 -
773 -Converted to decimal, it is 2468. Add two decimal places to get the actual value. 09 A4 means the current dissolved oxygen temperature is 24.68°C
774 -
775 -
776 776  = 5. DR-TS1 Water Turbidity Sensor =
777 777  
778 -== 5.1 Specification ==
261 +== 5.7 RS485 Commands ==
779 779  
780 780  
781 -* **Measuring range**: 0.1~~1000.0NTU
264 +The address of the dissolved oxygen sensor is 15
782 782  
783 -* **Accuracy**: ±5%
784 -
785 -* **Resolution**: 0.1NTU
786 -
787 -* **Stability**: ≤3mV/24 hours
788 -
789 -* **Output signal**: RS485 (standard Modbus-RTU protocol, device default address: 01)
790 -
791 -* **Power supply voltage**: 5~~24V DC (when output signal is RS485), 12~~24V DC (when output signal is 4~~20mA)
792 -
793 -* **Working environment:**
794 -** Ambient Temperature: 0–60°C
795 -** Relative Humidity: <85% RH(Specifically refers to the cable male and female)
796 -
797 -* **Power consumption**: ≤ 0.5W
798 -
799 -== 5.2 wiring ==
800 -
801 -
802 -[[image:image-20240720172640-5.png||height="387" width="635"]]
803 -
804 -
805 -== 5.3 Impedance requirements for current signals ==
806 -
807 -
808 -(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:400px" %)
809 -|(% style="width:132px" %)**Supply Voltage**|(% style="width:67px" %)**9V**|(% style="width:67px" %)**12V**|(% style="width:67px" %)**20V**|(% style="width:67px" %)**24V**
810 -|(% style="width:132px" %)**Max Impedance**|(% style="width:65px" %)**<250Ω**|(% style="width:67px" %)**<400Ω**|(% style="width:67px" %)**<500Ω**|(% style="width:65px" %)**<900Ω**
811 -
812 -== 5.4 Mechinical Drawing ==
813 -
814 -
815 -[[image:image-20240718195058-7.png||height="305" width="593"]]
816 -
817 -
818 -== 5.5 Instructions for use and maintenance ==
819 -
820 -
821 -* It can be directly put into water without adding a protective tube, ensuring the long-term stability, reliability and accuracy of the sensor.
822 -
823 -* If the water conditions are complex and you want accurate data, you need to wipe the sensor probe frequently.
824 -
825 -== 5.6 RS485 Commands ==
826 -
827 -
828 -RS485 signaldefault address 0x15
829 -Standard Modbus-RTU protocol, baud rate: 9600; check bit: none; data bit: 8; stop bit: 1
830 -
831 -
832 -=== 5.6.1 Query address ===
833 -
834 -
835 -**send:**
836 -
837 -(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:518px" %)
838 -|=(% style="width: 80.75px;background-color:#4F81BD;color:white" %)Original address|=(% style="width: 64.75px; background-color: rgb(79, 129, 189); color: white;" %)Function code|=(% style="width: 64.75px; background-color: rgb(79, 129, 189); color: white;" %)Address high|=(% style="width: 64.75px; background-color: rgb(79, 129, 189); color: white;" %)Address low|=(% style="width: 64.75px; background-color: rgb(79, 129, 189); color: white;" %)Quantity high|=(% style="width: 64.75px; background-color: rgb(79, 129, 189); color: white;" %)Quantity low|=(% style="width: 54.75px; background-color: rgb(79, 129, 189); color: white;" %)CRC16 low|=(% style="width: 58.75px; background-color: rgb(79, 129, 189); color: white;" %)CRC16 high
839 -|(% style="width:99px" %)0XFE |(% style="width:64.75px" %)0X03|(% style="width:64px" %)0X00|(% style="width:64.75px" %)0X50|(% style="width:70px" %)0X00|(% style="width:72px" %)0X00|(% style="width:56px" %)0X51|(% style="width:56px" %)0XD4
840 -
841 -If you forget the original address of the sensor, you can use the broadcast address 0XFE instead. When using 0XFE, the host can only connect to one slave, which can be used as a method of address query.
842 -
843 -
844 -**response:**
845 -
846 -(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:518px" %)
847 -|=(% style="width: 103.6px;background-color:#4F81BD;color:white" %)New address|=(% style="width: 103.6px;background-color:#4F81BD;color:white" %)Function code|=(% style="width: 103.6px; background-color: rgb(79, 129, 189); color: white;" %)Data length|=(% style="width: 103.6px; background-color: rgb(79, 129, 189); color: white;" %)CRC16 low|=(% style="width: 103.6px; background-color: rgb(79, 129, 189); color: white;" %)CRC16 high
848 -|(% style="width:99px" %)0X01|(% style="width:112px" %)0X03|(% style="width:106px" %)0X00|(% style="width:93px" %)0X20|(% style="width:104px" %)0XF0
849 -
850 -=== 5.6.2 Change address ===
851 -
852 -
853 -For example: Change the address of the sensor with address 1 to 2, master → slave
854 -
855 -(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:518px" %)
856 -|=(% style="width: 80.75px;background-color:#4F81BD;color:white" %)Original address|=(% style="width: 64.75px;background-color:#4F81BD;color:white" %)Function code|=(% style="width: 64.75px;background-color:#4F81BD;color:white" %)Address high|=(% style="width: 64.75px;background-color:#4F81BD;color:white" %)Address low|=(% style="width: 64.75px;background-color:#4F81BD;color:white" %)Quantity high|=(% style="width: 64.75px; background-color: rgb(79, 129, 189); color: white;" %)Quantity low|=(% style="width: 54.75px;background-color:#4F81BD;color:white" %)CRC16 low|=(% style="width: 58.75px;background-color:#4F81BD;color:white" %)CRC16 high
857 -|(% style="width:99px" %)0X01|(% style="width:112px" %)0X06|(% style="width:135px" %)0X00|(% style="width:126px" %)0X50|(% style="width:85px" %)0X00|(% style="width:1px" %)0X02|(% style="width:1px" %)0X08|(% style="width:1px" %)0X1A
858 -
859 -If the sensor receives correctly, the data is returned along the original path.
860 -
861 -(% style="color:red" %)**Note: If you forget the original address of the sensor, you can use the broadcast address 0XFE instead. When using 0XFE, the host can only connect to one slave, and the return address is still the original address, which can be used as a method of address query.**
862 -
863 -
864 -=== 5.6.3 Query data ===
865 -
866 -
867 -Query the data (turbidity) of the sensor (address 15), host → slave
868 -
869 -(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:518px" %)
870 -|=(% style="width: 42px;background-color:#4F81BD;color:white" %)Address|=(% style="width: 68px; background-color: rgb(79, 129, 189); color: white;" %)Function code|=(% style="width: 68px; background-color: rgb(79, 129, 189); color: white;" %)Starting register address high|=(% style="width: 68px; background-color: rgb(79, 129, 189); color: white;" %)Starting register address low|=(% style="width: 68px; background-color: rgb(79, 129, 189); color: white;" %)Register length high|=(% style="width: 68px; background-color: rgb(79, 129, 189); color: white;" %)Register length low|=(% style="width: 68px; background-color: rgb(79, 129, 189); color: white;" %)CRC16 low|=(% style="width: 68px; background-color: rgb(79, 129, 189); color: white;" %)CRC16 high
871 -|(% style="width:99px" %)0X15|(% style="width:72px" %)0X03|(% style="width:64px" %)0X00|(% style="width:68px" %)0X00|(% style="width:70px" %)0X00|(% style="width:72px" %)0X01|(% style="width:56px" %)0X87|(% style="width:56px" %)0X1E
872 -
873 -If the sensor receives correctly, the following data will be returned, slave → host
874 -
875 -(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:518px" %)
876 -|=(% style="width: 44px;background-color:#4F81BD;color:white" %)Address|=(% style="width: 79px; background-color: rgb(79, 129, 189); color: white;" %)Function code|=(% style="width: 79px; background-color: rgb(79, 129, 189); color: white;" %)Data length|=(% style="width: 79px; background-color: rgb(79, 129, 189); color: white;" %)Register 0 Data high|=(% style="width: 79px; background-color: rgb(79, 129, 189); color: white;" %)Register 0 Data low|=(% style="width: 79px; background-color: rgb(79, 129, 189); color: white;" %)CRC16 low|=(% style="width: 79px; background-color: rgb(79, 129, 189); color: white;" %)CRC16 high
877 -|(% style="width:99px" %)0X15|(% style="width:72px" %)0X03|(% style="width:68px" %)0X02|(% style="width:70px" %)0X02|(% style="width:72px" %)0X9A|(% style="width:56px" %)0X09|(% style="width:56px" %)0X4C
878 -
879 879  The query data command is 15 03 00 00 00 01 87 1E
880 880  
881 881  For example, the returned data is 15 03 02 (% style="color:red" %)**02 9A**(%%) 09 4C
... ... @@ -882,8 +882,4 @@
882 882  
883 883  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
884 884  
885 -
886 -= 6.  Water Quality Sensor Datasheet =
887 -
888 -
889 -* **[[Water Quality Sensor Transmitter Datasheet>>https://www.dropbox.com/scl/fi/9tofocmgapkbddshznumn/Datasheet_WQS-xB-WQS-xS_Water-Quality-Sensor-Transmitter.pdf?rlkey=wxua12ur9swk30rkqnh2boo9z&st=axga6epf&dl=0]]**
272 +
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