Changes for page Water Quality Sensors

Last modified by Karry Zhuang on 2025/02/18 15:43
<
From version < 32.2 >
edited by Karry Zhuang
on 2024/07/19 15:13
To version < 33.2 >
edited by Karry Zhuang
on 2024/07/19 16:12
>
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... ... @@ -278,7 +278,7 @@
278 278  RS485 signaldefault address 0x10
279 279  Standard Modbus-RTU protocol, baud rate: 9600; check bit: none; data bit: 8; stop bit: 1
280 280  
281 -=== 2.6.1 Query data ===
281 +=== 2.6.1 Query address ===
282 282  
283 283  send
284 284  
... ... @@ -418,17 +418,25 @@
418 418  [[image:image-20240718191336-5.png||height="239" width="326"]]
419 419  
420 420  
421 -=== 6.3.5 Maintenance ===
421 +=== 3.5 Maintenance ===
422 422  
423 423  
424 424  (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.
425 +
425 425  (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.).
427 +
426 426  (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.
429 +
427 427  (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.
431 +
428 428  (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.
433 +
429 429  (6) The electrode should be cleaned with deionized water before and after the measurement to ensure the measurement accuracy.
435 +
430 430  (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.
437 +
431 431  (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.
439 +
432 432  (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.
433 433  
434 434  == 3.6 RS485 Commands ==
... ... @@ -437,7 +437,7 @@
437 437  RS485 signaldefault address 0x13
438 438  Standard Modbus-RTU protocol, baud rate: 9600; check bit: none; data bit: 8; stop bit: 1
439 439  
440 -=== 3.6.1 Query data ===
448 +=== 3.6.1 Query address ===
441 441  
442 442  send
443 443  
... ... @@ -526,27 +526,31 @@
526 526  
527 527  == 4.1 Specification ==
528 528  
529 -* **Measuring range**: 0.1～1000.0NTU
530 -* **Accuracy**: ±5%
531 -* **Resolution**: 0.1NTU
532 -* **Stability**: ≤3mV/24 hours
533 -* **Output signal**: A: 4～20 mA (current loop)B: RS485 (standard Modbus-RTU protocol, device default address: 01)
534 -* **Power supply voltage**: 5～24V DC (when output signal is RS485)12～24V DC (when output signal is 4～20mA)
535 -* **Working environment**: temperature 0～60℃; humidity ≤95%RH
537 +
538 +* **Measuring range**: 0-20mg/L, 0-50℃
539 +* **Accuracy**: 3%, ±0.5℃
540 +* **Resolution**: 0.01 mg/L, 0.01℃
541 +* **Maximum operating pressure**: 6 bar
542 +* **Output signal**: A: 4-20mA (current loop)B: RS485 (standard Modbus-RTU protocol, device default address: 01)
543 +* **Power supply voltage**: 5-24V DC
544 +* **Working environment**: temperature 0-60℃; humidity <95%RH
536 536  * **Power consumption**: ≤0.5W
537 537  
538 -== 4.2 Impedance requirements for current signals ==
547 +== 4.2 wiring ==
539 539  
540 -[[image:image-20240718195414-8.png||height="100" width="575"]]
541 541  
542 542  
543 -== 4.3 wiring ==
551 +== (% id="cke_bm_224234S" style="display:none" %) (%%)4.3 Impedance requirements for current signals ==
544 544  
553 +[[image:image-20240718195414-8.png||height="100" width="575"]]
554 +
555 +
545 545  == 4.4 Mechinical Drawing ==
546 546  
547 -[[image:image-20240718195058-7.png||height="305" width="593"]]
548 548  
559 +[[image:image-20240719155308-1.png||height="226" width="527"]]
549 549  
561 +
550 550  === 4.5 Instructions for use and maintenance ===
551 551  
552 552  * It can be directly put into water without adding a protective tube, ensuring the long-term stability, reliability and accuracy of the sensor.
... ... @@ -554,8 +554,34 @@
554 554  
555 555  == 4.6 RS485 Commands ==
556 556  
557 -4.6.1
569 +=== 4.6.1 Query address ===
558 558  
571 +send
572 +
573 +(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:599.333px" %)
574 +|=(% 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
575 +|(% 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
576 +
577 +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.
578 +
579 +
580 +response
581 +
582 +(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:561.333px" %)
583 +|=(% 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
584 +|(% style="width:99px" %)0X01|(% style="width:112px" %)0X03|(% style="width:106px" %)0X00|(% style="width:93px" %)0X20|(% style="width:104px" %)0XF0
585 +
586 +=== 4.6.2 Change address ===
587 +
588 +For example: Change the address of the sensor with address 1 to 2, master → slave
589 +
590 +(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:907.333px" %)
591 +|=(% 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
592 +|(% 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
593 +
594 +=== 4.6.2 Query data ===
595 +
596 +
559 559  The address of the dissolved oxygen sensor is 14
560 560  
561 561  The query data command is 14 03 00 14 00 01 C6 CB
... ... @@ -567,9 +567,59 @@
567 567  
568 568  = 5. DR-TS1 Water Turbidity Sensor =
569 569  
570 -== 5.7 RS485 Commands ==
571 571  
572 572  
610 +== (% id="cke_bm_81470S" style="display:none" %) (%%)5.1 Specification ==
611 +
612 +* **Measuring range**: 0.1～1000.0NTU
613 +* **Accuracy**: ±5%
614 +* **Resolution**: 0.1NTU
615 +* **Stability**: ≤3mV/24 hours
616 +* **Output signal**: A: 4～20 mA (current loop)B: RS485 (standard Modbus-RTU protocol, device default address: 01)
617 +* **Power supply voltage**: 5～24V DC (when output signal is RS485)12～24V DC (when output signal is 4～20mA)
618 +* **Working environment**: temperature 0～60℃; humidity ≤95%RH
619 +* **Power consumption**: ≤0.5W
620 +
621 +== 5.2 wiring ==
622 +
623 +
624 +== 5.3 Impedance requirements for current signals ==
625 +
626 +[[image:image-20240718195414-8.png||height="100" width="575"]]
627 +
628 +
629 +== 5.4 Mechinical Drawing ==
630 +
631 +[[image:image-20240718195058-7.png||height="305" width="593"]]
632 +
633 +
634 +=== 5.5 Instructions for use and maintenance ===
635 +
636 +* It can be directly put into water without adding a protective tube, ensuring the long-term stability, reliability and accuracy of the sensor.
637 +* If the water conditions are complex and you want accurate data, you need to wipe the sensor probe frequently.
638 +
639 +== 5.6 RS485 Commands ==
640 +
641 +=== 4.6.1 Query address ===
642 +
643 +send
644 +
645 +(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:599.333px" %)
646 +|=(% 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
647 +|(% 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
648 +
649 +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.
650 +
651 +
652 +response
653 +
654 +(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:561.333px" %)
655 +|=(% 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
656 +|(% style="width:99px" %)0X01|(% style="width:112px" %)0X03|(% style="width:106px" %)0X00|(% style="width:93px" %)0X20|(% style="width:104px" %)0XF0
657 +
658 +=== 5.6.2 Query data ===
659 +
660 +
573 573  The address of the dissolved oxygen sensor is 15
574 574  
575 575  The query data command is 15 03 00 00 00 01 87 1E
image-20240719155308-1.png
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