Changes for page Water Quality Sensors
Last modified by Karry Zhuang on 2025/07/25 09:38
From version 26.1
edited by Karry Zhuang
on 2024/07/18 19:14
on 2024/07/18 19:14
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... ... @@ -1,1 +1,1 @@ 1 -XWiki. karry1 +XWiki.Xiaoling - Content
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... ... @@ -3,10 +3,13 @@ 3 3 {{toc/}} 4 4 5 5 6 + 7 + 6 6 = 1. DR-ECK Water EC Probe = 7 7 8 8 == 1.1 Specification: == 9 9 12 + 10 10 * **Power Input**: DC7~~30 11 11 * **Power Consumption** : < 0.5W 12 12 * **Interface**: RS485. 9600 Baud Rate ... ... @@ -23,6 +23,7 @@ 23 23 24 24 == 1.2 Application for Different Range == 25 25 29 + 26 26 [[image:image-20240714173018-1.png]] 27 27 28 28 ... ... @@ -29,8 +29,12 @@ 29 29 == 1.3 Wiring == 30 30 31 31 36 +[[image:image-20240720172533-1.png||height="347" width="569"]] 37 + 38 + 32 32 == 1.4 Mechinical Drawing == 33 33 41 + 34 34 [[image:image-20240714174241-2.png]] 35 35 36 36 ... ... @@ -37,19 +37,19 @@ 37 37 == 1.5 Installation == 38 38 39 39 40 -**Electrode installation form** 48 +**Electrode installation form:** 41 41 42 -A:Side wall installation 50 +A: Side wall installation 43 43 44 -B:Top flange installation 52 +B: Top flange installation 45 45 46 -C:Pipeline bend installation 54 +C: Pipeline bend installation 47 47 48 -D:Pipeline bend installation 56 +D: Pipeline bend installation 49 49 50 -E:Flow-through installation 58 +E: Flow-through installation 51 51 52 -F:Submerged installation 60 +F: Submerged installation 53 53 54 54 [[image:image-20240718190121-1.png||height="350" width="520"]] 55 55 ... ... @@ -61,11 +61,11 @@ 61 61 62 62 [[image:image-20240718190204-2.png||height="262" width="487"]] 63 63 64 -Error cause: The electrode joint is too long, the extension part is too short, the sensor is easy to form a dead cavity, resulting in measurement error. 72 +**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 65 66 66 [[image:image-20240718190221-3.png||height="292" width="500"]] 67 67 68 -Error cause: Measurement error or instability may occur due to water flow not being able to fill the pipe or air accumulation at high altitudes. 76 +**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 69 70 70 B. Correct installation method 71 71 ... ... @@ -72,7 +72,7 @@ 72 72 [[image:image-20240718190249-4.png||height="287" width="515"]] 73 73 74 74 75 -== 1.6 Mainta in ==83 +== 1.6 Maintenance == 76 76 77 77 78 78 * 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. ... ... @@ -89,70 +89,98 @@ 89 89 90 90 === 1.7.1 Query address === 91 91 92 -send 93 93 94 -(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:676.25px" %) 95 -|=(% 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 96 -|(% 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 101 +**send:** 97 97 103 +(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:518px" %) 104 +|=(% 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 105 +|(% 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 106 + 98 98 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. 99 99 100 100 101 -response 110 +**response:** 102 102 103 -(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:5 61.333px" %)104 -|=(% 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 high105 -|(% style="width:99px" %)0X1|(% style="width:112px" %)0X3|(% style="width:106px" %)0X00|(% style="width:93px" %)0X20|(% style="width:104px" %)0XF0 112 +(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:512px" %) 113 +|=(% 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 114 +|(% style="width:99px" %)0X01|(% style="width:112px" %)0X03|(% style="width:106px" %)0X00|(% style="width:93px" %)0X20|(% style="width:104px" %)0XF0 106 106 107 107 === 1.7.2 Change address === 108 108 118 + 109 109 For example: Change the address of the sensor with address 1 to 2, master → slave 110 110 111 -(% border="1" cellspacing="3" style="background-color:#f2f2f2; width: 676.25px" %)112 -|=(% style="width: 5 0px;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 high113 -|(% 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" %)0X1A121 +(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:518px" %) 122 +|=(% 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 123 +|(% 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 114 114 115 115 If the sensor receives correctly, the data is returned along the original path. 116 -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. 117 117 127 +(% 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.** 118 118 129 + 119 119 === 1.7.3 Modify intercept === 120 120 121 121 122 -send 133 +**send:** 123 123 124 -(% border="1" cellspacing="3" style="background-color:#f2f2f2; width: 676.25px" %)125 -|=(% 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 high126 -|(% 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" %)(((127 -0X 97135 +(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:512px" %) 136 +|=(% 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 137 +|(% 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" %)((( 138 +0X07 128 128 ))) 129 129 130 130 Change the intercept of the sensor with address 1 to 10 (default 0), which is 0X000A in the command. 131 131 132 -response 143 +**response:** 133 133 134 -(% border="1" cellspacing="3" style="background-color:#f2f2f2; width: 676.25px" %)135 -|=(% 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 high145 +(% 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 136 136 |(% style="width:99px" %)0X01|(% style="width:112px" %)0X06|(% style="width:135px" %)((( 137 137 0X02 138 -)))|(% style="width:126px" %)0X00|(% style="width:85px" %)0X00|(% style="width:1px" %)0X0A|(% style="width:1px" %)0X 0A|(% style="width:1px" %)(((139 -0X E5149 +)))|(% style="width:126px" %)0X00|(% style="width:85px" %)0X00|(% style="width:1px" %)0X0A|(% style="width:1px" %)0X38|(% style="width:1px" %)((( 150 +0X8F 140 140 ))) 141 141 142 142 === 1.7.4 Query data === 143 143 155 + 156 +Query the data (EC,temperature) of the sensor (address 11), host → slave 157 + 158 +(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:518px" %) 159 +|=(% 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 160 +|(% 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 161 + 162 +If the sensor receives correctly, the following data will be returned, slave → host 163 + 164 +(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:518px" %) 165 +|=(% 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 166 +|(% 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 167 + 144 144 The address of the EC K10 sensor is 11 145 145 146 146 The query data command is 11 03 00 00 00 02 C6 9B 147 147 148 -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 172 +**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. 149 149 150 150 175 +Query the data (EC,temperature) of the sensor (address 11), host → slave 176 + 177 +(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:518px" %) 178 +|=(% 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 179 +|(% 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 180 + 181 +If the sensor receives correctly, the following data will be returned, slave → host 182 + 183 +(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:518px" %) 184 +|=(% 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 185 +|(% 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 186 + 151 151 The address of the EC K1 sensor is 12 152 152 153 153 The query data command is 12 03 00 00 00 02 C6 A8 154 154 155 -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 191 +**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. 156 156 157 157 158 158 === 1.7.5 Calibration Method === ... ... @@ -160,57 +160,49 @@ 160 160 161 161 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. 162 162 163 -The calibration steps are as follows: 199 +**The calibration steps are as follows:** 164 164 (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. 165 165 166 -(% border="1" cellspacing="3" style="background-color:#f2f2f2; width: 676.25px" %)167 -|=(% 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 high202 +(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:518px" %) 203 +|=(% 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 168 168 |(% 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" %)((( 169 169 0X00 170 - 171 171 0X00 172 - 173 173 0X37 174 - 175 175 0X32 176 176 )))|(% style="width:1px" %)0XBD|(% style="width:1px" %)0XFC 177 177 178 178 1413*10 gives 0X00003732 179 179 180 -response 213 +**response:** 181 181 182 -(% border="1" cellspacing="3" style="background-color:#f2f2f2; width: 676.25px" %)183 -|=(% 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 high215 +(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:518px" %) 216 +|=(% 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 184 184 |(% 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 185 185 186 186 (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 187 187 188 -(% border="1" cellspacing="3" style="background-color:#f2f2f2; width: 676.25px" %)189 -|=(% 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 high221 +(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:518px" %) 222 +|=(% 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 190 190 |(% 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" %)((( 191 191 0X00 192 - 193 193 0X01 194 - 195 195 0XF7 196 - 197 197 0X20 198 198 )))|(% style="width:1px" %)0X33|(% style="width:1px" %)0X75 199 199 200 200 12880*10 gives 0X01F720 201 201 202 -response 232 +**response:** 203 203 204 -(% border="1" cellspacing="3" style="background-color:#f2f2f2; width: 676.25px" %)205 -|=(% 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 high234 +(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:518px" %) 235 +|=(% 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 206 206 |(% 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 207 207 208 - 209 - 210 210 = 2. DR-PH01 Water PH Sensor = 211 211 240 +== 2.1 Specification == 212 212 213 -== 2.1 Specification:[[Edit>>url:http://wiki.dragino.com/xwiki/bin/edit/Main/Water%20Quality%20Sensors/WebHome?section=2]] == 214 214 215 215 * **Power Input**: DC7~~30 216 216 * **Power Consumption** : < 0.5W ... ... @@ -225,43 +225,47 @@ 225 225 * **IP Rated**: IP68 226 226 * **Max Pressure**: 0.6MPa 227 227 228 - 229 229 == 2.2 Wiring == 230 230 231 231 259 +[[image:image-20240720172548-2.png||height="348" width="571"]] 260 + 261 + 232 232 == (% style="color:inherit; font-family:inherit" %)2.3 (% style="color:inherit; font-family:inherit; font-size:26px" %)Mechinical Drawing(%%) == 233 233 264 + 234 234 [[image:image-20240714174241-2.png]] 235 235 236 236 237 237 == 2.4 Installation Notice == 238 238 270 + 239 239 Do not power on while connect the cables. Double check the wiring before power on. 240 240 241 241 Installation Photo as reference: 242 242 243 -** ~Submerged installation:**275 +(% style="color:blue" %)**Submerged installation:** 244 244 245 245 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. 246 246 247 247 [[image:image-20240718191348-6.png]] 248 248 249 -** ~Pipeline installation:**281 +(% style="color:blue" %)**Pipeline installation:** 250 250 251 251 Connect the equipment to the pipeline through the 3/4 thread. 252 252 253 253 [[image:image-20240718191336-5.png||height="239" width="326"]] 254 254 255 -**Sampling:** 287 +(% style="color:blue" %)**Sampling:** 256 256 257 257 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. 258 258 259 -**Measure the pH of the water sample:** 291 +(% style="color:blue" %)**Measure the pH of the water sample:** 260 260 261 261 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. 262 262 263 263 264 -== =2.5 Maintenance ===296 +== 2.5 Maintenance == 265 265 266 266 267 267 * 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! ... ... @@ -279,8 +279,77 @@ 279 279 == 2.6 RS485 Commands == 280 280 281 281 282 -The address of the pH sensor is 10 314 +RS485 signaldefault address 0x10 315 +Standard Modbus-RTU protocol, baud rate: 9600; check bit: none; data bit: 8; stop bit: 1 283 283 317 + 318 +=== 2.6.1 Query address === 319 + 320 + 321 +**send:** 322 + 323 +(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:518px" %) 324 +|=(% 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 325 +|(% 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 326 + 327 +**response:** 328 + 329 +(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:518px" %) 330 +|=(% 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 331 +|(% style="width:99px" %)0X01|(% style="width:112px" %)0X03|(% style="width:106px" %)0X00|(% style="width:93px" %)0X20|(% style="width:104px" %)0XF0 332 + 333 +=== 2.6.2 Change address === 334 + 335 + 336 +For example: Change the address of the sensor with address 1 to 2, master → slave 337 + 338 +(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:518px" %) 339 +|=(% 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 340 +|(% 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 341 + 342 +If the sensor receives correctly, the data is returned along the original path. 343 + 344 +(% 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.** 345 + 346 + 347 +=== 2.6.3 Modify intercept === 348 + 349 + 350 +**send:** 351 + 352 +(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:518px" %) 353 +|=(% style="width: 71px; background-color: rgb(79, 129, 189); color: white;" %)Address|=(% style="width: 74px; background-color: rgb(79, 129, 189); color: white;" %)Function code|=(% style="width: 67px; 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: 69px; background-color: rgb(79, 129, 189); color: white;" %)Register Length high|=(% style="width: 66px; background-color: rgb(79, 129, 189); color: white;" %)Register Length low|=(% style="width: 57px; background-color: rgb(79, 129, 189); color: white;" %)CRC16 low|=(% style="width: 57px; background-color: rgb(79, 129, 189); color: white;" %)CRC16 high 354 +|(% 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" %)((( 355 +0XA5 356 +))) 357 + 358 +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. 359 + 360 +**response:** 361 + 362 +(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:518px" %) 363 +|=(% 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 364 +|(% style="width:99px" %)0X10|(% style="width:112px" %)0X06|(% style="width:135px" %)((( 365 +0X00 366 +)))|(% style="width:126px" %)0X10|(% style="width:85px" %)0X00|(% style="width:1px" %)0X64|(% style="width:1px" %)0X8A|(% style="width:1px" %)((( 367 +0XA5 368 +))) 369 + 370 +=== 2.6.4 Query data === 371 + 372 + 373 +Query the data (PH) of the sensor (address 10), host → slave 374 + 375 +(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:518px" %) 376 +|=(% style="width: 50px;background-color:#4F81BD;color:white" %)Address|=(% style="width: 72px; background-color: rgb(79, 129, 189); color: white;" %)Function code|=(% style="width: 64px; 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: 70px; background-color: rgb(79, 129, 189); color: white;" %)Register length high|=(% style="width: 72px; background-color: rgb(79, 129, 189); color: white;" %)Register length low|=(% style="width: 56px; background-color: rgb(79, 129, 189); color: white;" %)CRC16 low|=(% style="width: 56px; background-color: rgb(79, 129, 189); color: white;" %)CRC16 high 377 +|(% 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 378 + 379 +If the sensor receives correctly, the following data will be returned, slave → host 380 + 381 +(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:518px" %) 382 +|=(% style="width: 50px;background-color:#4F81BD;color:white" %)Address|=(% style="width: 72px; background-color: rgb(79, 129, 189); color: white;" %)Function code|=(% style="width: 68px; background-color: rgb(79, 129, 189); color: white;" %)Data length|=(% style="width: 68px; background-color: rgb(79, 129, 189); color: white;" %)Register 0 Data high|=(% style="width: 70px; background-color: rgb(79, 129, 189); color: white;" %)Register 0 Data low|=(% style="width: 56px; background-color: rgb(79, 129, 189); color: white;" %)CRC16 low|=(% style="width: 56px; background-color: rgb(79, 129, 189); color: white;" %)CRC16 high 383 +|(% 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 384 + 284 284 The query data command is 10 03 00 00 00 01 87 4B. After the query, 7 bytes will be returned. 285 285 286 286 For example, the returned data is 10 03 02 (% style="color:red" %)**02 AE**(%%) C4 9B. ... ... @@ -288,13 +288,176 @@ 288 288 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. 289 289 290 290 392 +=== 2.6.5 Calibration Method === 393 + 394 + 395 +This device uses three-point calibration, and three known pH standard solutions need to be prepared. 396 +**The calibration steps are as follows:** 397 +(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. 398 + 399 +(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:518px" %) 400 +|=(% style="width: 64px; 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 401 +|(% style="width:64px" %)0X10|(% style="width:72px" %)0X06|(% style="width:66px" %)((( 402 +0X00 403 +)))|(% style="width:68px" %)0X20|(% style="width:72px" %)0XFF|(% style="width:70px" %)0XFF|(% style="width:55px" %)0X8A|(% style="width:55px" %)((( 404 +0XF1 405 +))) 406 + 407 +(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. 408 + 409 +(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:518px" %) 410 +|=(% style="width: 64px; 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 411 +|(% style="width:64px" %)0X10|(% style="width:72px" %)0X06|(% style="width:66px" %)((( 412 +0X00 413 +)))|(% style="width:68px" %)0X21|(% style="width:72px" %)0XFF|(% style="width:70px" %)0XFF|(% style="width:55px" %)0XDB|(% style="width:55px" %)((( 414 +0X31 415 +))) 416 + 417 +(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. 418 + 419 +(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:518px" %) 420 +|=(% style="width: 64px; 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 421 +|(% style="width:64px" %)0X10|(% style="width:72px" %)0X06|(% style="width:66px" %)((( 422 +0X00 423 +)))|(% style="width:68px" %)0X22|(% style="width:72px" %)0XFF|(% style="width:70px" %)0XFF|(% style="width:55px" %)0X2B|(% style="width:55px" %)((( 424 +0X31 425 +))) 426 + 427 +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. 428 + 429 + 291 291 = 3. DR-ORP1 Water ORP Sensor = 292 292 293 -== 3. 7RS485 Commands==432 +== 3.1 Specification == 294 294 434 +* **Power Input**: DC7~~30 435 +* **Measuring range**:** **-1999~~1999mV 436 +**Resolution**: 1mV 437 +* **Interface**: RS485. 9600 Baud Rate 438 +* **Measurement error**: ±3mV 439 +* **Stability**: ≤2mv/24 hours 440 +* **Equipment working conditions**: Ambient temperature: 0-60℃ Relative humidity: <85%RH 441 +* **IP Rated**: IP68 442 +* **Max Pressure**: 0.6MPa 295 295 296 - Theaddressof the ORP sensors13444 +== 3.2 Wiring == 297 297 446 +[[image:image-20240720172620-3.png||height="378" width="620"]] 447 + 448 + 449 +== 3.3 Mechinical Drawing == 450 + 451 +[[image:image-20240714174241-2.png]] 452 + 453 +== 3.4 Installation Notice == 454 + 455 +Do not power on while connect the cables. Double check the wiring before power on. 456 + 457 +Installation Photo as reference: 458 + 459 +**~ Submerged installation:** 460 + 461 +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. 462 + 463 +[[image:image-20240718191348-6.png]] 464 + 465 +**~ Pipeline installation:** 466 + 467 +Connect the equipment to the pipeline through the 3/4 thread. 468 + 469 +[[image:image-20240718191336-5.png||height="239" width="326"]] 470 + 471 + 472 +== 3.5 Maintenance == 473 + 474 + 475 +(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. 476 + 477 +(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.). 478 + 479 +(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. 480 + 481 +(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. 482 + 483 +(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. 484 + 485 +(6) The electrode should be cleaned with deionized water before and after the measurement to ensure the measurement accuracy. 486 + 487 +(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. 488 + 489 +(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. 490 + 491 +(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. 492 + 493 +== 3.6 RS485 Commands == 494 + 495 + 496 +RS485 signaldefault address 0x13 497 +Standard Modbus-RTU protocol, baud rate: 9600; check bit: none; data bit: 8; stop bit: 1 498 + 499 +=== 3.6.1 Query address === 500 + 501 +send 502 + 503 +(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:676.25px" %) 504 +|=(% 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 505 +|(% 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 506 + 507 +response 508 + 509 +(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:561.333px" %) 510 +|=(% 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 511 +|(% style="width:99px" %)0X01|(% style="width:112px" %)0X03|(% style="width:106px" %)0X00|(% style="width:93px" %)0X20|(% style="width:104px" %)0XF0 512 + 513 +=== 3.6.2 Change address === 514 + 515 +For example: Change the address of the sensor with address 1 to 2, master → slave 516 + 517 +(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:676.25px" %) 518 +|=(% 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 519 +|(% 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 520 + 521 +If the sensor receives correctly, the data is returned along the original path. 522 +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. 523 + 524 + 525 +=== 3.6.3 Modify intercept === 526 + 527 +send 528 + 529 +(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:676.25px" %) 530 +|=(% style="width: 50px;background-color:#4F81BD;color:white" %)Address|=(% style="width: 50px;background-color:#4F81BD;color:white" %)Function code|=(% style="width: 67px; 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: 69px; background-color: rgb(79, 129, 189); color: white;" %)Register Length high|=(% style="width: 66px; background-color: rgb(79, 129, 189); color: white;" %)Register Length low|=(% style="width: 50px;background-color:#4F81BD;color:white" %)CRC16 low|=(% style="width: 50px;background-color:#4F81BD;color:white" %)CRC16 high 531 +|(% 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" %)((( 532 +0X96 533 +))) 534 + 535 +Change the intercept of the sensor with address 1 to 10 (default 0), which is 0X000A in the command. 536 + 537 +response 538 + 539 +(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:676.25px" %) 540 +|=(% 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 541 +|(% style="width:99px" %)0X13|(% style="width:112px" %)0X06|(% style="width:135px" %)((( 542 +0X00 543 +)))|(% style="width:126px" %)0X10|(% style="width:85px" %)0X00|(% style="width:1px" %)0X64|(% style="width:1px" %)0X8A|(% style="width:1px" %)((( 544 +0X96 545 +))) 546 + 547 +=== 3.6.4 Query data === 548 + 549 + 550 +Query the data (ORP) of the sensor (address 13), host → slave 551 + 552 +(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:599.333px" %) 553 +|=(% style="width: 50px;background-color:#4F81BD;color:white" %)Address|=(% style="width: 72px; background-color: rgb(79, 129, 189); color: white;" %)Function code|=(% style="width: 64px; 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: 70px; background-color: rgb(79, 129, 189); color: white;" %)Register length high|=(% style="width: 72px; background-color: rgb(79, 129, 189); color: white;" %)Register length low|=(% style="width: 56px; background-color: rgb(79, 129, 189); color: white;" %)CRC16 low|=(% style="width: 56px; background-color: rgb(79, 129, 189); color: white;" %)CRC16 high 554 +|(% 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 555 + 556 +If the sensor receives correctly, the following data will be returned, slave → host 557 + 558 +(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:599.333px" %) 559 +|=(% style="width: 50px;background-color:#4F81BD;color:white" %)Address|=(% style="width: 72px; background-color: rgb(79, 129, 189); color: white;" %)Function code|=(% style="width: 68px; background-color: rgb(79, 129, 189); color: white;" %)Data length|=(% style="width: 68px; background-color: rgb(79, 129, 189); color: white;" %)Register 0 Data high|=(% style="width: 70px; background-color: rgb(79, 129, 189); color: white;" %)Register 0 Data low|=(% style="width: 56px; background-color: rgb(79, 129, 189); color: white;" %)CRC16 low|=(% style="width: 56px; background-color: rgb(79, 129, 189); color: white;" %)CRC16 high 560 +|(% 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 561 + 298 298 The query data command is 13 03 00 00 00 01 87 78 299 299 300 300 For example, the returned data is 13 03 02 (% style="color:red" %)**02 AE**(%%) 80 9B. ... ... @@ -302,27 +302,227 @@ 302 302 02 AE is the ORP value, converted to decimal, the actual value is 686, 02 AE means the current ORP value is 686mV 303 303 304 304 569 +=== 3.6.5 Calibration Method === 570 + 571 +This device uses two-point calibration, and two known ORP standard solutions need to be prepared. The calibration steps are as follows: 572 +(1) Place the electrode in distilled water to clean it, and then place it in 86mV standard buffer solution. After the data stabilizes, 573 +enter the following calibration command, and the 86mV point calibration is completed; 574 + 575 +(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:575.333px" %) 576 +|=(% style="width: 64px; 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 577 +|(% style="width:64px" %)0X13|(% style="width:72px" %)0X06|(% style="width:66px" %)((( 578 +0X00 579 +)))|(% style="width:68px" %)0X24|(% style="width:72px" %)0XFF|(% style="width:70px" %)0XFF|(% style="width:55px" %)0XCB|(% style="width:55px" %)((( 580 +0X03 581 +))) 582 + 583 +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. 584 + 585 +(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:575.333px" %) 586 +|=(% style="width: 64px; 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 587 +|(% style="width:64px" %)0X13|(% style="width:72px" %)0X06|(% style="width:66px" %)((( 588 +0X00 589 +)))|(% style="width:68px" %)0X25|(% style="width:72px" %)0XFF|(% style="width:70px" %)0XFF|(% style="width:55px" %)0X9A|(% style="width:55px" %)((( 590 +0XC3 591 +))) 592 + 305 305 = 4. DR-DO1 Dissolved Oxygen Sensor = 306 306 307 -== 4.7 RS485 Commands == 308 308 309 309 310 - Theaddressofhe dissolved oxygensensor is 14597 +== 4.1 Specification == 311 311 312 -The query data command is 14 03 00 14 00 01 C6 CB 313 313 600 +* **Measuring range**: 0-20mg/L, 0-50℃ 601 +* **Accuracy**: 3%, ±0.5℃ 602 +* **Resolution**: 0.01 mg/L, 0.01℃ 603 +* **Maximum operating pressure**: 6 bar 604 +* **Output signal**: A: 4-20mA (current loop)B: RS485 (standard Modbus-RTU protocol, device default address: 01) 605 +* **Power supply voltage**: 5-24V DC 606 +* **Working environment**: temperature 0-60℃; humidity <95%RH 607 +* **Power consumption**: ≤0.5W 608 + 609 +== 4.2 wiring == 610 + 611 +[[image:image-20240720172632-4.png||height="390" width="640"]] 612 + 613 + 614 +== (% id="cke_bm_224234S" style="display:none" %) (%%)4.3 Impedance requirements for current signals == 615 + 616 +[[image:image-20240718195414-8.png||height="100" width="575"]] 617 + 618 + 619 +== 4.4 Mechinical Drawing == 620 + 621 + 622 +[[image:image-20240719155308-1.png||height="226" width="527"]] 623 + 624 + 625 +== 4.5 Instructions for use and maintenance == 626 + 627 +* It can be directly put into water without adding a protective tube, ensuring the long-term stability, reliability and accuracy of the sensor. 628 +* If the water conditions are complex and you want accurate data, you need to wipe the sensor probe frequently. 629 + 630 +== 4.6 RS485 Commands == 631 + 632 +RS485 signaldefault address 0x14 633 +Standard Modbus-RTU protocol, baud rate: 9600; check bit: none; data bit: 8; stop bit: 1 634 + 635 +=== 4.6.1 Query address === 636 + 637 +send 638 + 639 +(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:599.333px" %) 640 +|=(% style="width: 50px;background-color:#4F81BD;color:white" %)Original address|=(% style="width: 72px; background-color: rgb(79, 129, 189); color: white;" %)Function code|=(% style="width: 64px; background-color: rgb(79, 129, 189); color: white;" %)Register address high|=(% style="width: 68px; background-color: rgb(79, 129, 189); color: white;" %)Register address low|=(% style="width: 70px; background-color: rgb(79, 129, 189); color: white;" %)Register length high|=(% style="width: 72px; background-color: rgb(79, 129, 189); color: white;" %)Register length low|=(% style="width: 56px; background-color: rgb(79, 129, 189); color: white;" %)CRC16 low|=(% style="width: 56px; background-color: rgb(79, 129, 189); color: white;" %)CRC16 high 641 +|(% 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 642 + 643 +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. 644 + 645 + 646 +response 647 + 648 +Register 0 data high and register 0 data low indicate the actual address of the sensor: 1 649 +Register 1 data high and register 1 data low indicate the sensor version 650 + 651 +(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:599.333px" %) 652 +|=(% style="width: 50px;background-color:#4F81BD;color:white" %)Address|=(% style="width: 72px; background-color: rgb(79, 129, 189); color: white;" %)Function code|=(% style="width: 64px; background-color: rgb(79, 129, 189); color: white;" %)Data length|=(% style="width: 68px; background-color: rgb(79, 129, 189); color: white;" %)Register 0 Data high|=(% style="width: 70px; background-color: rgb(79, 129, 189); color: white;" %)Register 0 Data low|=(% style="width: 70px; background-color: rgb(79, 129, 189); color: white;" %)Register 1 Data high|=(% style="width: 72px; background-color: rgb(79, 129, 189); color: white;" %)Register 1 Data low|=(% style="width: 56px; background-color: rgb(79, 129, 189); color: white;" %)CRC16 low|=(% style="width: 56px; background-color: rgb(79, 129, 189); color: white;" %)CRC16 high 653 +|(% 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 654 + 655 +=== 4.6.2 Change address === 656 + 657 +For example: Change the address of the sensor with address 1 to 2(address range: 1-119), master → slave 658 + 659 +(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:907.333px" %) 660 +|=(% style="width: 67px; background-color: rgb(79, 129, 189); color: white;" %)Original address|=(% style="width: 71px; background-color: rgb(79, 129, 189); color: white;" %)Function code|=(% style="width: 65px; background-color: rgb(79, 129, 189); color: white;" %)Starting register address high|=(% style="width: 65px; background-color: rgb(79, 129, 189); color: white;" %)Starting register address low|=(% style="width: 70px; background-color: rgb(79, 129, 189); color: white;" %)Register length high|=(% style="width: 72px; background-color: rgb(79, 129, 189); color: white;" %)Register length low|=(% style="width: 53px; background-color: rgb(79, 129, 189); color: white;" %)Data length|=(% style="width: 53px; background-color: rgb(79, 129, 189); color: white;" %)Start address high|=(% style="width: 53px; background-color: rgb(79, 129, 189); color: white;" %)Start address low|=(% style="width: 53px; background-color: rgb(79, 129, 189); color: white;" %)Sensor version|=(% style="width: 53px; background-color: rgb(79, 129, 189); color: white;" %)Sensor version|=(% style="width: 56px; background-color: rgb(79, 129, 189); color: white;" %)CRC16 high|=(% style="width: 68px; background-color: rgb(79, 129, 189); color: white;" %)CRC16 low 661 +|(% 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 662 + 663 +response 664 + 665 +(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:599.333px" %) 666 +|=(% style="width: 50px;background-color:#4F81BD;color:white" %)Address|=(% style="width: 72px; background-color: rgb(79, 129, 189); color: white;" %)Function code|=(% style="width: 64px; 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: 70px; background-color: rgb(79, 129, 189); color: white;" %)Register length high|=(% style="width: 72px; background-color: rgb(79, 129, 189); color: white;" %)Register length low|=(% style="width: 56px; background-color: rgb(79, 129, 189); color: white;" %)CRC16 low|=(% style="width: 56px; background-color: rgb(79, 129, 189); color: white;" %)CRC16 high 667 +|(% 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 668 + 669 +=== 4.6.3 Query data === 670 + 671 + 672 +Query the data (dissolved oxygen) of the sensor (address 14), host → slave 673 + 674 +(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:599.333px" %) 675 +|=(% style="width: 50px;background-color:#4F81BD;color:white" %)Address|=(% style="width: 72px; background-color: rgb(79, 129, 189); color: white;" %)Function code|=(% style="width: 64px; 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: 70px; background-color: rgb(79, 129, 189); color: white;" %)Register length high|=(% style="width: 72px; background-color: rgb(79, 129, 189); color: white;" %)Register length low|=(% style="width: 56px; background-color: rgb(79, 129, 189); color: white;" %)CRC16 low|=(% style="width: 56px; background-color: rgb(79, 129, 189); color: white;" %)CRC16 high 676 +|(% 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 677 + 678 +If the sensor receives correctly, the following data will be returned, slave → host 679 + 680 +(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:599.333px" %) 681 +|=(% style="width: 50px;background-color:#4F81BD;color:white" %)Address|=(% style="width: 72px; background-color: rgb(79, 129, 189); color: white;" %)Function code|=(% style="width: 68px; background-color: rgb(79, 129, 189); color: white;" %)Data length|=(% style="width: 68px; background-color: rgb(79, 129, 189); color: white;" %)Register 0 Data high|=(% style="width: 70px; background-color: rgb(79, 129, 189); color: white;" %)Register 0 Data low|=(% style="width: 56px; background-color: rgb(79, 129, 189); color: white;" %)CRC16 low|=(% style="width: 56px; background-color: rgb(79, 129, 189); color: white;" %)CRC16 high 682 +|(% 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 683 + 314 314 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. 315 315 316 316 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 317 317 318 318 689 +Query the data (temperature) of the sensor (address 14), host → slave 690 + 691 +(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:599.333px" %) 692 +|=(% style="width: 50px;background-color:#4F81BD;color:white" %)Address|=(% style="width: 72px; background-color: rgb(79, 129, 189); color: white;" %)Function code|=(% style="width: 64px; 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: 70px; background-color: rgb(79, 129, 189); color: white;" %)Register length high|=(% style="width: 72px; background-color: rgb(79, 129, 189); color: white;" %)Register length low|=(% style="width: 56px; background-color: rgb(79, 129, 189); color: white;" %)CRC16 low|=(% style="width: 56px; background-color: rgb(79, 129, 189); color: white;" %)CRC16 high 693 +|(% 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 694 + 695 +If the sensor receives correctly, the following data will be returned, slave → host 696 + 697 +(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:599.333px" %) 698 +|=(% style="width: 50px;background-color:#4F81BD;color:white" %)Address|=(% style="width: 72px; background-color: rgb(79, 129, 189); color: white;" %)Function code|=(% style="width: 68px; background-color: rgb(79, 129, 189); color: white;" %)Data length|=(% style="width: 68px; background-color: rgb(79, 129, 189); color: white;" %)Register 0 Data high|=(% style="width: 70px; background-color: rgb(79, 129, 189); color: white;" %)Register 0 Data low|=(% style="width: 56px; background-color: rgb(79, 129, 189); color: white;" %)CRC16 low|=(% style="width: 56px; background-color: rgb(79, 129, 189); color: white;" %)CRC16 high 699 +|(% 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 700 + 701 +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. 702 + 703 +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℃ 704 + 705 + 319 319 = 5. DR-TS1 Water Turbidity Sensor = 320 320 321 -== 5.7 RS485 Commands == 322 322 323 323 324 - Theaddressofthesolved oxygensensoris15710 +== (% id="cke_bm_81470S" style="display:none" %) (%%)5.1 Specification == 325 325 712 +* **Measuring range**: 0.1~1000.0NTU 713 +* **Accuracy**: ±5% 714 +* **Resolution**: 0.1NTU 715 +* **Stability**: ≤3mV/24 hours 716 +* **Output signal**: A: 4~20 mA (current loop)B: RS485 (standard Modbus-RTU protocol, device default address: 01) 717 +* **Power supply voltage**: 5~24V DC (when output signal is RS485)12~24V DC (when output signal is 4~20mA) 718 +* **Working environment**: temperature 0~60℃; humidity ≤95%RH 719 +* **Power consumption**: ≤0.5W 720 + 721 +== 5.2 wiring == 722 + 723 +[[image:image-20240720172640-5.png||height="387" width="635"]] 724 + 725 + 726 +== 5.3 Impedance requirements for current signals == 727 + 728 +[[image:image-20240718195414-8.png||height="100" width="575"]] 729 + 730 + 731 +== 5.4 Mechinical Drawing == 732 + 733 +[[image:image-20240718195058-7.png||height="305" width="593"]] 734 + 735 + 736 +== 5.5 Instructions for use and maintenance == 737 + 738 +* It can be directly put into water without adding a protective tube, ensuring the long-term stability, reliability and accuracy of the sensor. 739 +* If the water conditions are complex and you want accurate data, you need to wipe the sensor probe frequently. 740 + 741 +== 5.6 RS485 Commands == 742 + 743 + 744 +RS485 signaldefault address 0x15 745 +Standard Modbus-RTU protocol, baud rate: 9600; check bit: none; data bit: 8; stop bit: 1 746 + 747 +=== 5.6.1 Query address === 748 + 749 +send 750 + 751 +(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:599.333px" %) 752 +|=(% style="width: 50px;background-color:#4F81BD;color:white" %)Original address|=(% style="width: 72px; background-color: rgb(79, 129, 189); color: white;" %)Function code|=(% style="width: 64px; 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: 70px; background-color: rgb(79, 129, 189); color: white;" %)Quantity high|=(% style="width: 72px; background-color: rgb(79, 129, 189); color: white;" %)Quantity low|=(% style="width: 56px; background-color: rgb(79, 129, 189); color: white;" %)CRC16 low|=(% style="width: 56px; background-color: rgb(79, 129, 189); color: white;" %)CRC16 high 753 +|(% style="width:99px" %)0XFE |(% style="width:72px" %)0X03|(% style="width:64px" %)0X00|(% style="width:68px" %)0X50|(% style="width:70px" %)0X00|(% style="width:72px" %)0X00|(% style="width:56px" %)0X51|(% style="width:56px" %)0XD4 754 + 755 +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. 756 + 757 + 758 +response 759 + 760 +(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:561.333px" %) 761 +|=(% 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 762 +|(% style="width:99px" %)0X01|(% style="width:112px" %)0X03|(% style="width:106px" %)0X00|(% style="width:93px" %)0X20|(% style="width:104px" %)0XF0 763 + 764 +=== 5.6.2 Change address === 765 + 766 +For example: Change the address of the sensor with address 1 to 2, master → slave 767 + 768 +(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:676.25px" %) 769 +|=(% 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 770 +|(% 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 771 + 772 +If the sensor receives correctly, the data is returned along the original path. 773 +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. 774 + 775 +=== 5.6.3 Query data === 776 + 777 + 778 +Query the data (turbidity) of the sensor (address 15), host → slave 779 + 780 +(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:599.333px" %) 781 +|=(% style="width: 50px;background-color:#4F81BD;color:white" %)Address|=(% style="width: 72px; background-color: rgb(79, 129, 189); color: white;" %)Function code|=(% style="width: 64px; 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: 70px; background-color: rgb(79, 129, 189); color: white;" %)Register length high|=(% style="width: 72px; background-color: rgb(79, 129, 189); color: white;" %)Register length low|=(% style="width: 56px; background-color: rgb(79, 129, 189); color: white;" %)CRC16 low|=(% style="width: 56px; background-color: rgb(79, 129, 189); color: white;" %)CRC16 high 782 +|(% 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 783 + 784 +If the sensor receives correctly, the following data will be returned, slave → host 785 + 786 +(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:599.333px" %) 787 +|=(% style="width: 50px;background-color:#4F81BD;color:white" %)Address|=(% style="width: 72px; background-color: rgb(79, 129, 189); color: white;" %)Function code|=(% style="width: 68px; background-color: rgb(79, 129, 189); color: white;" %)Data length|=(% style="width: 68px; background-color: rgb(79, 129, 189); color: white;" %)Register 0 Data high|=(% style="width: 70px; background-color: rgb(79, 129, 189); color: white;" %)Register 0 Data low|=(% style="width: 56px; background-color: rgb(79, 129, 189); color: white;" %)CRC16 low|=(% style="width: 56px; background-color: rgb(79, 129, 189); color: white;" %)CRC16 high 788 +|(% 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 789 + 326 326 The query data command is 15 03 00 00 00 01 87 1E 327 327 328 328 For example, the returned data is 15 03 02 (% style="color:red" %)**02 9A**(%%) 09 4C
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