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Changes for page Water Quality Sensors

Last modified by Karry Zhuang on 2025/02/18 15:43
From version 9.1
edited by Edwin Chen
on 2024/07/18 11:22
Change comment: There is no comment for this version
To version 15.1
edited by Karry Zhuang
on 2024/07/18 16:14
Change comment: There is no comment for this version

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Author
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1 -XWiki.Edwin
1 +XWiki.karry
Content
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42 42  
43 43  == 1.7 RS485 Commands ==
44 44  
45 +=== 1.7.1 Query data ===
45 45  
47 +The address of the EC K10 sensor is 11
48 +
49 +The query data command is 11 03 00 00 00 02 C6 9B
50 +
51 +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
52 +
53 +
54 +The address of the EC K1 sensor is 12
55 +
56 +The query data command is 12 03 00 00 00 02 C6 A8
57 +
58 +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.
59 +
60 +
61 +=== 1.7.2 Calibration Method ===
62 +
63 +
64 +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.
65 +
66 +The calibration steps are as follows:
67 +(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.
68 +
69 +(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:676.25px" %)
70 +|=(% 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
71 +|(% 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" %)(((
72 +0X00
73 +
74 +0X00
75 +
76 +0X37
77 +
78 +0X32
79 +)))|(% style="width:1px" %)0XBD|(% style="width:1px" %)0XFC
80 +
81 +1413*10 gives 0X00003732
82 +
83 +Return
84 +
85 +(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:676.25px" %)
86 +|=(% 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
87 +|(% 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
88 +
89 +
90 +
91 +(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
92 +
93 +(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:676.25px" %)
94 +|=(% 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
95 +|(% 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" %)(((
96 +0X00
97 +
98 +0X01
99 +
100 +0XF7
101 +
102 +0X20
103 +)))|(% style="width:1px" %)0X33|(% style="width:1px" %)0X75
104 +
105 +12880*10 gives 0X01F720
106 +
107 +Return
108 +
109 +(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:676.25px" %)
110 +|=(% 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
111 +|(% 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
112 +
113 +
114 +
115 +
116 +
46 46  = 2. DR-PH01 Water PH Sensor =
47 47  
48 48  == 2.7 RS485 Commands ==
49 49  
50 50  
122 +The address of the pH  sensor is 10
51 51  
124 +The query data command is 10 03 00 00 00 01 87 4B. After the query, 7 bytes will be returned.
125 +
126 +For example, the returned data is 10 03 02 (% style="color:red" %)**02 AE**(%%) C4 9B.
127 +
128 +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.
129 +
130 +
52 52  = 3. DR-ORP1 Water ORP Sensor =
53 53  
54 54  == 3.7 RS485 Commands ==
55 55  
56 56  
136 +The address of the ORP sensor is 13
57 57  
138 +The query data command is 13 03 00 00 00 01 87 78
139 +
140 +For example, the returned data is 13 03 02 (% style="color:red" %)**02 AE**(%%) 80 9B.
141 +
142 +02 AE is the ORP value, converted to decimal, the actual value is 686, 02 AE means the current ORP value is 686mV
143 +
144 +
58 58  = 4. DR-DO1 Dissolved Oxygen Sensor =
59 59  
60 60  == 4.7 RS485 Commands ==
61 61  
62 62  
150 +The address of the dissolved oxygen sensor is 14
63 63  
152 +The query data command is 14 03 00 14 00 01 C6 CB
153 +
154 +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.
155 +
156 +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
157 +
158 +
64 64  = 5. DR-TS1 Water Turbidity Sensor =
65 65  
66 66  == 5.7 RS485 Commands ==
67 67  
163 +
164 +The address of the dissolved oxygen sensor is 15
165 +
166 +The query data command is 15 03 00 00 00 01 87 1E
167 +
168 +For example, the returned data is 15 03 02 (% style="color:red" %)**02 9A**(%%) 09 4C
169 +
170 +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
171 +
68 68