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Changes for page Water Quality Sensors

Last modified by Karry Zhuang on 2025/07/25 09:38
From version 67.1
edited by Karry Zhuang
on 2025/07/15 18:00
Change comment: Uploaded new attachment "1752573643879-991.png", version {1}
To version 72.2
edited by Karry Zhuang
on 2025/07/16 09:25
Change comment: There is no comment for this version

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... ... @@ -5,7 +5,7 @@
5 5  
6 6  
7 7  
8 -= 1. DR-ECK Water EC Probe =
8 += 1. DR-EC Water EC Probe =
9 9  
10 10  == 1.1 Specification: ==
11 11  
... ... @@ -17,20 +17,25 @@
17 17  * **Interface**: RS485. 9600 Baud Rate
18 18  
19 19  * **EC Range & Resolution:**
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 -
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
26 26  * **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℃
27 27  * **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
28 28  * **Working environment:**
29 29  ** Ambient Temperature: 0–60°C
30 30  ** Relative Humidity: <85% RH(Specifically refers to the cable male and female)
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
37 +** ECK200 Continuous monitoring of cross-section water quality, aquaculture, sewage treatment, environmental protection, pharmaceuticals, food, tap water, seawater and other high conductivity environments
32 32  * **IP Rated**: IP68
33 -
34 34  * **Max Pressure**: 0.6MPa
35 35  
36 36  == 1.2 Application for Different Range ==
... ... @@ -47,7 +47,7 @@
47 47  
48 48  == 1.4 Mechinical Drawing ==
49 49  
50 - ECK1 and ECK10  ECK200
55 + ECK1 and ECK10  EC200
51 51  
52 52  
53 53  [[image:image-20240714174241-2.png]] [[image:1752564223905-283.png||height="399" width="160"]]
... ... @@ -207,8 +207,10 @@
207 207  **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.
208 208  
209 209  
210 -ECK200
215 +EC200
211 211  
217 +
218 +
212 212  === 1.7.5 Calibration Method ===
213 213  
214 214  ECK1 and ECK10.0
... ... @@ -468,8 +468,8 @@
468 468  Query the data (PH) of the sensor (address 10), host → slave
469 469  
470 470  (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:518px" %)
471 -|=(% 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
478 +|=(% 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 high
479 +|(% style="width:99px" %)0X10|(% style="width:74px" %)0X03|(% style="width:75px" %)0X00|(% style="width:68px" %)0X00|(% style="width:70px" %)0X00|(% style="width:72px" %)0X01|(% style="width:56px" %)0X87|(% style="width:56px" %)0X4B
473 473  
474 474  If the sensor receives correctly, the following data will be returned, slave → host
475 475  
... ... @@ -948,11 +948,10 @@
948 948  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
949 949  
950 950  
951 -= 6. DR-ECK Water EC Probe =
958 += 6. DR-CL Water CL Probe =
952 952  
953 953  == 6.1 Specification: ==
954 954  
955 -
956 956  * **Power Input**: DC7~~30
957 957  
958 958  * **Power Consumption** : 0.19W
... ... @@ -974,17 +974,80 @@
974 974  
975 975  * **Max Pressure**: 0.6MPa
976 976  
977 -== 2.2 Wiring ==
983 +== 6.2 Wiring ==
978 978  
979 979  [[image:image-20240720172548-2.png||height="348" width="571"]]
980 980  
981 -== 2.3 Mechinical Drawing ==
987 +== 6.3 Mechinical Drawing ==
982 982  
983 983  [[image:1752573238705-910.png||height="694" width="278"]]
984 984  
991 +== 6.4 Installation ==
985 985  
993 +Flow-through installation: Use the matching flow slot for installation. The device and the flow slot are installed tightly.
986 986  
995 +The measuring end is completely immersed in the measured liquid to ensure a steady flow rate without bubbles.
987 987  
997 +It is recommended that the flow rate be controlled at 30-60Lh to ensure the accuracy of the test.
998 +
999 +[[image:1752573643879-991.png||height="360" width="343"]]
1000 +
1001 +== 6.5 Maintenance ==
1002 +
1003 +* 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!
1004 +* After using the electrode, please clean the electrode head with clean water and cover it with a protective cover.
1005 +* 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.
1006 +* 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.
1007 +* 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.
1008 +* 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.
1009 +The electrode has a service life of about one year, and a new electrode should be replaced in time after aging.
1010 +* Before the cable plug and the device plug are locked, do not put the plug part into water.
1011 +
1012 +
1013 +
1014 +== 6.6 RS485 Commands ==
1015 +
1016 +RS485 signal 
1017 +Standard Modbus-RTU protocol, baud rate: 9600; check bit: none; data bit: 8; stop bit: 1
1018 +
1019 +
1020 +== 6.7 Query data ==
1021 +
1022 +Example 1: Read the current residual chlorine concentration of the device with address 01
1023 +
1024 +(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:534.333px" %)
1025 +|=(% 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
1026 +|(% style="width:99px" %)0X01|(% style="width:112px" %)0X03|(% style="width:74px" %)0X00 0X00|(% style="width:94px" %)0X00 0X01|(% style="width:72px" %)(((
1027 +0X84
1028 +)))|(% style="width:77px" %)0X0A
1029 +
1030 +**response:**
1031 +
1032 +(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:534.333px" %)
1033 +|=(% 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
1034 +|(% style="width:99px" %)0X01|(% style="width:83px" %)0X03|(% style="width:110px" %)0X02|(% style="width:94px" %)0X03 0X16|(% style="width:72px" %)(((
1035 +0X39
1036 +)))|(% style="width:77px" %)0X7A
1037 +
1038 +Calculation of residual chlorine concentration: 316H (hexadecimal) = 790 => residual chlorine = 7.90
1039 +
1040 +
1041 +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)
1042 +
1043 +(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:518px" %)
1044 +|=(% 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
1045 +|(% 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
1046 +
1047 +**response:**
1048 +
1049 +(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:534.333px" %)
1050 +|=(% 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
1051 +|(% style="width:99px" %)0X01|(% style="width:83px" %)0X10|(% style="width:110px" %)0X01 0X12|(% style="width:94px" %)0X00 0X02|(% style="width:72px" %)(((
1052 +0XE5
1053 +)))|(% style="width:77px" %)0X0D
1054 +
1055 +
1056 +
988 988  = 7.  Water Quality Sensor Datasheet =
989 989  
990 990  * **[[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]]**