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Changes for page Water Quality Sensors

Last modified by Karry Zhuang on 2025/07/25 09:38
From version 71.4
edited by Karry Zhuang
on 2025/07/16 09:16
Change comment: There is no comment for this version
To version 68.1
edited by Karry Zhuang
on 2025/07/15 18:34
Change comment: There is no comment for this version

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Content
... ... @@ -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  
... ... @@ -17,11 +17,12 @@
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
20 20  ** **ECK1.0** : 0 ~~ 2,000 μS/cm  Resolution: 1 μS/cm
21 21  ** **ECK10.0** : 10 ~~ 20,000 μS/cm  Resolution: 10 μS/cm
22 -** **EC200.0** : 1 ~~ 200,000 μS/cm  Resolution: 1 μS/cm
23 -* **Salinity measurement range**
24 -** **EC200** : 0 ~~ 2,000 μS/cm  Resolution: 1 μS/cm
24 +** **ECK200.0** : 1 ~~ 200,000 μS/cm  Resolution: 1 μS/cm
25 +
25 25  * **EC Accuracy**: ±1% FS
26 26  * **Temperature Accuracy: **±0.5 °C
27 27  * **Working environment:**
... ... @@ -29,6 +29,7 @@
29 29  ** Relative Humidity: <85% RH(Specifically refers to the cable male and female)
30 30  ** ECK200.0 Continuous monitoring of cross-section water quality, aquaculture, sewage treatment, environmental protection, pharmaceuticals, food, tap water, seawater and other high conductivity environments
31 31  * **IP Rated**: IP68
33 +
32 32  * **Max Pressure**: 0.6MPa
33 33  
34 34  == 1.2 Application for Different Range ==
... ... @@ -466,8 +466,8 @@
466 466  Query the data (PH) of the sensor (address 10), host → slave
467 467  
468 468  (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:518px" %)
469 -|=(% 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
470 -|(% 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
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
471 471  
472 472  If the sensor receives correctly, the following data will be returned, slave → host
473 473  
... ... @@ -989,62 +989,9 @@
989 989  
990 990  [[image:1752573643879-991.png||height="360" width="343"]]
991 991  
992 -== 6.5 Maintenance ==
993 993  
994 -* 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!
995 -* After using the electrode, please clean the electrode head with clean water and cover it with a protective cover.
996 -* 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.
997 -* 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.
998 -* 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.
999 -* 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.
1000 -The electrode has a service life of about one year, and a new electrode should be replaced in time after aging.
1001 -* Before the cable plug and the device plug are locked, do not put the plug part into water.
1002 1002  
1003 1003  
1004 -
1005 -== 6.6 RS485 Commands ==
1006 -
1007 -RS485 signal 
1008 -Standard Modbus-RTU protocol, baud rate: 9600; check bit: none; data bit: 8; stop bit: 1
1009 -
1010 -
1011 -== 6.7 Query data ==
1012 -
1013 -Example 1: Read the current residual chlorine concentration of the device with address 01
1014 -
1015 -(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:534.333px" %)
1016 -|=(% 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
1017 -|(% style="width:99px" %)0X01|(% style="width:112px" %)0X03|(% style="width:74px" %)0X00 0X00|(% style="width:94px" %)0X00 0X01|(% style="width:72px" %)(((
1018 -0X84
1019 -)))|(% style="width:77px" %)0X0A
1020 -
1021 -**response:**
1022 -
1023 -(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:534.333px" %)
1024 -|=(% 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
1025 -|(% style="width:99px" %)0X01|(% style="width:83px" %)0X03|(% style="width:110px" %)0X02|(% style="width:94px" %)0X03 0X16|(% style="width:72px" %)(((
1026 -0X39
1027 -)))|(% style="width:77px" %)0X7A
1028 -
1029 -Calculation of residual chlorine concentration: 316H (hexadecimal) = 790 => residual chlorine = 7.90
1030 -
1031 -
1032 -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)
1033 -
1034 -(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:518px" %)
1035 -|=(% 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
1036 -|(% 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
1037 -
1038 -**response:**
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: 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
1042 -|(% style="width:99px" %)0X01|(% style="width:83px" %)0X10|(% style="width:110px" %)0X01 0X12|(% style="width:94px" %)0X00 0X02|(% style="width:72px" %)(((
1043 -0XE5
1044 -)))|(% style="width:77px" %)0X0D
1045 -
1046 -
1047 -
1048 1048  = 7.  Water Quality Sensor Datasheet =
1049 1049  
1050 1050  * **[[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]]**