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Wiki source code of Water Quality Sensors

Version 14.1 by Karry Zhuang on 2024/07/18 16:11
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Edwin Chen 1.1 1 **Table of Contents:**
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3 {{toc/}}
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Edwin Chen 7.1 6 = 1. DR-ECK Water EC Probe =
7
8 == 1.1 Specification: ==
9
10 * **Power Input**: DC7~~30
11 * **Power Consumption** : < 0.5W
12 * **Interface**: RS485. 9600 Baud Rate
13 * **EC Range & Resolution:**
14 ** **ECK0.01** : 0.02 ~~ 20 μS/cm
15 ** **ECK0.1**: 0.2 ~~ 200.0 μS/cm
16 ** **ECK1.0** : 2 ~~ 2,000 μS/cm  Resolution: 1 μS/cm
17 ** **ECK10.0** : 20 ~~ 20,000 μS/cm  Resolution: 10 μS/cm
18 * **EC Accuracy**: ±1% FS
19 * **Temperature Measure Range**: -20 ~~ 60 °C
20 * **Temperature Accuracy: **±0.5 °C
21 * **IP Rated**: IP68
22 * **Max Pressure**: 0.6MPa
23
24 == 1.2 Application for Different Range ==
25
26 [[image:image-20240714173018-1.png]]
27
28
29 == 1.3 Wiring ==
30
31
32 == 1.4 Mechinical Drawing ==
33
34 [[image:image-20240714174241-2.png]]
35
36
37 == 1.5 Installation ==
38
39
40 == 1.6 Maintain ==
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Edwin Chen 8.1 43 == 1.7 RS485 Commands ==
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Karry Zhuang 12.1 45 === 1.7.1 Query data ===
Edwin Chen 8.1 46
Karry Zhuang 11.1 47 The address of the EC K10 sensor is 11
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Karry Zhuang 10.1 49 The query data command is 11 03 00 00 00 02 C6 9B
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Karry Zhuang 11.1 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
Karry Zhuang 10.1 52
53
54 The address of the EC K1 sensor is 12
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56 The query data command is 12 03 00 00 00 02 C6 A8
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Karry Zhuang 11.1 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.
Karry Zhuang 10.1 59
Karry Zhuang 11.1 60
Karry Zhuang 12.1 61 === 1.7.2 Calibration Method ===
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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 1413uS/cm standard solution, and when mileage K=10, 10~~20000 uses 12.88mS/cm standard solution. The calibration steps are as follows:
65 (1) Place the electrode in distilled water and clean it. When mileage 1~~2000 uses 1413HS/cm standard solution, enter the following calibration command after the data is stable.
66
Karry Zhuang 14.1 67 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:676.25px" %)
68 |=(% 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
69 |(% 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" %)(((
70 0X00
Karry Zhuang 12.1 71
Karry Zhuang 14.1 72 0X00
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74 0X37
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76 0X32
77 )))|(% style="width:1px" %)0XBD|(% style="width:1px" %)0XFC
78
79 return
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Karry Zhuang 13.1 81 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:676.25px" %)
Karry Zhuang 14.1 82 |=(% 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
83 |(% 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
84
85
86 (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
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88 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:676.25px" %)
Karry Zhuang 13.1 89 |=(% 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
Karry Zhuang 14.1 90 |(% 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" %)(((
91 0X00
Karry Zhuang 12.1 92
Karry Zhuang 14.1 93 0X01
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95 0XF7
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97 0X20
98 )))|(% style="width:1px" %)0X33|(% style="width:1px" %)0X75
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100 Return
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102 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:676.25px" %)
103 |=(% 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
104 |(% 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
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Edwin Chen 8.1 111 = 2. DR-PH01 Water PH Sensor =
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Edwin Chen 9.1 113 == 2.7 RS485 Commands ==
Edwin Chen 8.1 114
Edwin Chen 9.1 115
Karry Zhuang 11.1 116 The address of the pH  sensor is 10
Edwin Chen 9.1 117
Karry Zhuang 11.1 118 The query data command is 10 03 00 00 00 01 87 4B. After the query, 7 bytes will be returned.
Karry Zhuang 10.1 119
Karry Zhuang 11.1 120 For example, the returned data is 10 03 02 (% style="color:red" %)**02 AE**(%%) C4 9B.
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122 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.
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Edwin Chen 8.1 125 = 3. DR-ORP1 Water ORP Sensor =
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Edwin Chen 9.1 127 == 3.7 RS485 Commands ==
Edwin Chen 8.1 128
Edwin Chen 9.1 129
Karry Zhuang 11.1 130 The address of the ORP sensor is 13
Edwin Chen 9.1 131
Karry Zhuang 11.1 132 The query data command is 13 03 00 00 00 01 87 78
Karry Zhuang 10.1 133
Karry Zhuang 11.1 134 For example, the returned data is 13 03 02 (% style="color:red" %)**02 AE**(%%) 80 9B.
Karry Zhuang 10.1 135
Karry Zhuang 11.1 136 02 AE is the ORP value, converted to decimal, the actual value is 686, 02 AE means the current ORP value is 686mV
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Edwin Chen 8.1 139 = 4. DR-DO1 Dissolved Oxygen Sensor =
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Edwin Chen 9.1 141 == 4.7 RS485 Commands ==
Edwin Chen 8.1 142
Karry Zhuang 11.1 143
Karry Zhuang 10.1 144 The address of the dissolved oxygen sensor is 14
Edwin Chen 9.1 145
Karry Zhuang 10.1 146 The query data command is 14 03 00 14 00 01 C6 CB
Edwin Chen 9.1 147
Karry Zhuang 11.1 148 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.
Karry Zhuang 10.1 149
150 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
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Karry Zhuang 11.1 152
Edwin Chen 8.1 153 = 5. DR-TS1 Water Turbidity Sensor =
154
Edwin Chen 9.1 155 == 5.7 RS485 Commands ==
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Karry Zhuang 10.1 157
158 The address of the dissolved oxygen sensor is 15
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Karry Zhuang 11.1 160 The query data command is 15 03 00 00 00 01 87 1E
Karry Zhuang 10.1 161
Karry Zhuang 11.1 162 For example, the returned data is 15 03 02 (% style="color:red" %)**02 9A**(%%) 09 4C
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164 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
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Edwin Chen 7.1 166