Changes for page Water Quality Sensors
Last modified by Karry Zhuang on 2025/07/25 09:38
From version 72.3
edited by Karry Zhuang
on 2025/07/16 09:26
on 2025/07/16 09:26
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To version 67.1
edited by Karry Zhuang
on 2025/07/15 18:00
on 2025/07/15 18:00
Change comment:
Uploaded new attachment "1752573643879-991.png", version {1}
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... ... @@ -5,7 +5,7 @@ 5 5 6 6 7 7 8 -= 1. DR-EC Water EC Probe = 8 += 1. DR-ECK Water EC Probe = 9 9 10 10 == 1.1 Specification: == 11 11 ... ... @@ -17,25 +17,20 @@ 17 17 * **Interface**: RS485. 9600 Baud Rate 18 18 19 19 * **EC Range & Resolution:** 20 -** **ECK1.0 :** 0 ~~ 2,000 μS/cm Resolution: 1 μS/cm 21 -** **ECK10.0 : **10 ~~ 20,000 μS/cm Resolution: 10 μS/cm 22 -** **EC200 : **1 ~~ 200,000 μS/cm Resolution: 1 μS/cm 20 +** **ECK0.01** : 0.02 ~~ 20 μS/cm 21 +** **ECK0.1**: 0.2 ~~ 200.0 μS/cm 22 +** **ECK1.0** : 0 ~~ 2,000 μS/cm Resolution: 1 μS/cm 23 +** **ECK10.0** : 10 ~~ 20,000 μS/cm Resolution: 10 μS/cm 24 +** **ECK200.0** : 1 ~~ 200,000 μS/cm Resolution: 1 μS/cm 25 + 23 23 * **EC Accuracy**: ±1% FS 24 -* **Salinity measurement range** 25 -** **EC200 :**0~~70PSU Resolution: 0.1PSU 26 -* **Temperature measurement range** 27 -** **ECK1/ECK10:**-20~~+60℃; Resolution: 0.1℃ 28 -** **EC200 :**-5~~+80℃; Resolution: 0.1℃ 29 29 * **Temperature Accuracy: **±0.5 °C 30 -* **Temperature compensation range** 31 -** **ECK1/ECK10:**0~~+60℃ (default compensation temperature 25℃) 32 -** **EC200:**-5~~+80℃ (default compensation temperature 25℃) 33 -* **Temperature compensation coefficient:**Default 0.2 34 34 * **Working environment:** 35 35 ** Ambient Temperature: 0–60°C 36 36 ** Relative Humidity: <85% RH(Specifically refers to the cable male and female) 37 -** ECK200 31 +** ECK200.0 Continuous monitoring of cross-section water quality, aquaculture, sewage treatment, environmental protection, pharmaceuticals, food, tap water, seawater and other high conductivity environments 38 38 * **IP Rated**: IP68 33 + 39 39 * **Max Pressure**: 0.6MPa 40 40 41 41 == 1.2 Application for Different Range == ... ... @@ -52,7 +52,7 @@ 52 52 53 53 == 1.4 Mechinical Drawing == 54 54 55 - ECK1 and ECK10 EC200 50 + ECK1 and ECK10 ECK200 56 56 57 57 58 58 [[image:image-20240714174241-2.png]] [[image:1752564223905-283.png||height="399" width="160"]] ... ... @@ -212,26 +212,8 @@ 212 212 **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. 213 213 214 214 215 -EC200 210 +ECK200 216 216 217 -(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:534.333px" %) 218 -|=(% style="width: 42px;background-color:#4F81BD;color:white" %)Address|=(% style="width: 53px;background-color:#4F81BD;color:white" %)Function code|=(% style="width: 74px; background-color: rgb(79, 129, 189); color: white;" %)Register Address|=(% style="width: 94px; background-color: rgb(79, 129, 189); color: white;" %)Register length|=(% style="width: 72px; background-color: rgb(79, 129, 189); color: white;" %)CRC16 low|=(% style="width: 77px; background-color: rgb(79, 129, 189); color: white;" %)CRC16 high 219 -|(% style="width:99px" %)0X01|(% style="width:112px" %)0X03|(% style="width:74px" %)0X00 0X00|(% style="width:94px" %)0X00 0X04|(% style="width:72px" %)((( 220 -0XC5 221 -)))|(% style="width:77px" %)0XC8 222 - 223 -**response:** 224 - 225 -(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:534.333px" %) 226 -|=(% style="width: 42px;background-color:#4F81BD;color:white" %)Address|=(% style="width: 53px;background-color:#4F81BD;color:white" %)Function code|=(% style="width: 74px; background-color: rgb(79, 129, 189); color: white;" %)Register Address|=(% style="width: 94px; background-color: rgb(79, 129, 189); color: white;" %)Register length|=(% style="width: 72px; background-color: rgb(79, 129, 189); color: white;" %)CRC16 low|=(% style="width: 77px; background-color: rgb(79, 129, 189); color: white;" %)CRC16 high 227 -|(% style="width:99px" %)0X01|(% style="width:112px" %)0X03|(% style="width:74px" %)0X00 0X00|(% style="width:94px" %)0X00 0X04|(% style="width:72px" %)((( 228 -0XC5 229 -)))|(% style="width:77px" %)0XC8 230 - 231 - 232 - 233 - 234 - 235 235 === 1.7.5 Calibration Method === 236 236 237 237 ECK1 and ECK10.0 ... ... @@ -280,7 +280,7 @@ 280 280 281 281 282 282 283 -EC200 260 +ECK200.0 284 284 285 285 For the device with address 01, use 1413uS/cm standard solution to calibrate the first point. Send frame: 1413. Convert hexadecimal to 585. Write 0001, 00 00, 0585 to 0x0120, 0x0121, 0x0122 respectively. 286 286 ... ... @@ -491,8 +491,8 @@ 491 491 Query the data (PH) of the sensor (address 10), host → slave 492 492 493 493 (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:518px" %) 494 -|=(% style="width: 42px;background-color:#4F81BD;color:white" %)Address|=(% style="width: 74px; background-color: rgb(79, 129, 189); color: white;" %)Function code|=(% style="width:75px; 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 high495 -|(% style="width:99px" %)0X10|(% style="width:7 4px" %)0X03|(% style="width:75px" %)0X00|(% style="width:68px" %)0X00|(% style="width:70px" %)0X00|(% style="width:72px" %)0X01|(% style="width:56px" %)0X87|(% style="width:56px" %)0X4B471 +|=(% 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 472 +|(% 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 496 496 497 497 If the sensor receives correctly, the following data will be returned, slave → host 498 498 ... ... @@ -971,10 +971,11 @@ 971 971 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 972 972 973 973 974 -= 6. DR-C LWater CLProbe =951 += 6. DR-ECK Water EC Probe = 975 975 976 976 == 6.1 Specification: == 977 977 955 + 978 978 * **Power Input**: DC7~~30 979 979 980 980 * **Power Consumption** : 0.19W ... ... @@ -996,80 +996,17 @@ 996 996 997 997 * **Max Pressure**: 0.6MPa 998 998 999 -== 6.2 Wiring ==977 +== 2.2 Wiring == 1000 1000 1001 1001 [[image:image-20240720172548-2.png||height="348" width="571"]] 1002 1002 1003 -== 6.3 Mechinical Drawing ==981 +== 2.3 Mechinical Drawing == 1004 1004 1005 1005 [[image:1752573238705-910.png||height="694" width="278"]] 1006 1006 1007 -== 6.4 Installation == 1008 1008 1009 -Flow-through installation: Use the matching flow slot for installation. The device and the flow slot are installed tightly. 1010 1010 1011 -The measuring end is completely immersed in the measured liquid to ensure a steady flow rate without bubbles. 1012 1012 1013 -It is recommended that the flow rate be controlled at 30-60Lh to ensure the accuracy of the test. 1014 - 1015 -[[image:1752573643879-991.png||height="360" width="343"]] 1016 - 1017 -== 6.5 Maintenance == 1018 - 1019 -* The device 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! 1020 -* After using the electrode, please clean the electrode head with clean water and cover it with a protective cover. 1021 -* When measuring the device, the measured liquid should flow and the flow rate should be uniform, and there should be no bubbles attached to the measuring end of the device. 1022 -* If the electrode diaphragm is attached with dirt and mineral components, the sensitivity will be reduced, and it may not be possible to perform sufficient measurement. Please ensure that the platinum ring is clean. 1023 -* The platinum induction ring of a good residual chlorine electrode should always be kept clean and bright. If the platinum ring of the electrode becomes rough or covered with pollutants after measurement, please clean it according to the following method: (For reference) Inorganic pollution: immerse the electrode in 0.1mol/L dilute hydrochloric acid for 15 minutes, gently wipe the platinum ring of the residual chlorine electrode with a cotton swab, and then wash it with tap water. 1024 -* Organic or oil pollution: immerse the electrode in tap water with a small amount of detergent, such as dishwashing liquid, and thoroughly clean the sensing surface of the electrode sensor. Gently wipe the platinum ring of the electrode with a cotton swab, then rinse with tap water, and the cleaning is complete. If the platinum ring of the electrode has formed an oxide film, please use toothpaste or 1000-grit fine sandpaper to properly polish the sensing surface, and then clean it with tap water. The platinum ring is connected to the glass, so please handle it carefully when polishing. 1025 -The electrode has a service life of about one year, and a new electrode should be replaced in time after aging. 1026 -* Before the cable plug and the device plug are locked, do not put the plug part into water. 1027 - 1028 - 1029 - 1030 -== 6.6 RS485 Commands == 1031 - 1032 -RS485 signal 1033 -Standard Modbus-RTU protocol, baud rate: 9600; check bit: none; data bit: 8; stop bit: 1 1034 - 1035 - 1036 -== 6.7 Query data == 1037 - 1038 -Example 1: Read the current residual chlorine concentration of the device with address 01 1039 - 1040 -(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:534.333px" %) 1041 -|=(% style="width: 42px;background-color:#4F81BD;color:white" %)Address|=(% style="width: 53px;background-color:#4F81BD;color:white" %)Function code|=(% style="width: 74px; background-color: rgb(79, 129, 189); color: white;" %)Register Address|=(% style="width: 94px; background-color: rgb(79, 129, 189); color: white;" %)Register length|=(% style="width: 72px; background-color: rgb(79, 129, 189); color: white;" %)CRC16 low|=(% style="width: 77px; background-color: rgb(79, 129, 189); color: white;" %)CRC16 high 1042 -|(% style="width:99px" %)0X01|(% style="width:112px" %)0X03|(% style="width:74px" %)0X00 0X00|(% style="width:94px" %)0X00 0X01|(% style="width:72px" %)((( 1043 -0X84 1044 -)))|(% style="width:77px" %)0X0A 1045 - 1046 -**response:** 1047 - 1048 -(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:534.333px" %) 1049 -|=(% style="width: 42px;background-color:#4F81BD;color:white" %)Address|=(% style="width: 83px; background-color: rgb(79, 129, 189); color: white;" %)Function code|=(% style="width: 110px; background-color: rgb(79, 129, 189); color: white;" %)Valid Bytes|=(% style="width: 94px; background-color: rgb(79, 129, 189); color: white;" %)Register contents|=(% style="width: 72px; background-color: rgb(79, 129, 189); color: white;" %)CRC16 low|=(% style="width: 77px; background-color: rgb(79, 129, 189); color: white;" %)CRC16 high 1050 -|(% style="width:99px" %)0X01|(% style="width:83px" %)0X03|(% style="width:110px" %)0X02|(% style="width:94px" %)0X03 0X16|(% style="width:72px" %)((( 1051 -0X39 1052 -)))|(% style="width:77px" %)0X7A 1053 - 1054 -Calculation of residual chlorine concentration: 316H (hexadecimal) = 790 => residual chlorine = 7.90 1055 - 1056 - 1057 -Example 2: Set the deviation value for the current residual chlorine value of the device with address 01 to correct the value and send the frame: (If the current residual gas value output by the device is 7.90, the value needs to be corrected to 8.00, the difference is 8.00-7.90-0.100.1*100=10=>41200000 (floating point number), write 41200000 to the contents of the two registers) 1058 - 1059 -(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:518px" %) 1060 -|=(% style="width: 80.75px;background-color:#4F81BD;color:white" %)Original address|=(% style="width: 64.75px;background-color:#4F81BD;color:white" %)Function code|=(% style="width: 64.75px;background-color:#4F81BD;color:white" %)Register address|=(% style="width: 64.75px;background-color:#4F81BD;color:white" %)Register number|=(% style="width: 64.75px;background-color:#4F81BD;color:white" %)Byte number|=(% style="width: 64.75px; background-color: rgb(79, 129, 189); color: white;" %)Register content|=(% style="width: 54.75px;background-color:#4F81BD;color:white" %)CRC16 low|=(% style="width: 58.75px;background-color:#4F81BD;color:white" %)CRC16 high 1061 -|(% style="width:99px" %)0X01|(% style="width:112px" %)0X10|(% style="width:135px" %)0X01 0X12|(% style="width:126px" %)0X00 0X02|(% style="width:85px" %)0X04|(% style="width:1px" %)0X4120 0X0000|(% style="width:1px" %)0X08|(% style="width:1px" %)0X1A 1062 - 1063 -**response:** 1064 - 1065 -(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:534.333px" %) 1066 -|=(% style="width: 42px;background-color:#4F81BD;color:white" %)Address|=(% style="width: 83px; background-color: rgb(79, 129, 189); color: white;" %)Function code|=(% style="width: 110px; background-color: rgb(79, 129, 189); color: white;" %)Register address|=(% style="width: 94px; background-color: rgb(79, 129, 189); color: white;" %)Register number|=(% style="width: 72px; background-color: rgb(79, 129, 189); color: white;" %)CRC16 low|=(% style="width: 77px; background-color: rgb(79, 129, 189); color: white;" %)CRC16 high 1067 -|(% style="width:99px" %)0X01|(% style="width:83px" %)0X10|(% style="width:110px" %)0X01 0X12|(% style="width:94px" %)0X00 0X02|(% style="width:72px" %)((( 1068 -0XE5 1069 -)))|(% style="width:77px" %)0X0D 1070 - 1071 - 1072 - 1073 1073 = 7. Water Quality Sensor Datasheet = 1074 1074 1075 1075 * **[[Water Quality Sensor Transmitter Datasheet>>https://www.dropbox.com/scl/fi/9tofocmgapkbddshznumn/Datasheet_WQS-xB-WQS-xS_Water-Quality-Sensor-Transmitter.pdf?rlkey=wxua12ur9swk30rkqnh2boo9z&st=axga6epf&dl=0]]**