Changes for page WQS-NB/NS -- NB-IoT Water Quality Sensor Transmitter User Manual

Last modified by kai on 2025/08/06 10:05

From 142.1 to 143.1 From 144.1 to 145.1

From version 143.1

edited by Karry Zhuang
on 2024/07/17 10:50

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To version 144.1

edited by Karry Zhuang
on 2024/07/17 11:20

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@@ -989,92 +989,141 @@
  [[image:image-20240715181651-3.png||height="223" width="562"]]
--=== 6.3.4  Pin Mapping ===
++=== 6.3.4  Installation Notice ===
++(((
++(% id="cke_bm_321773S" style="display:none" %) (%%)Do not power on while connect the cables. Double check the wiring before power on.
++)))
--=== 6.3.5  Installation Notice ===
++(((
++Installation Photo as reference:
++)))
--Do not power on while connect the cables. Double check the wiring before power on.
++(((
++(% style="color:#4472c4" %)** Submerged installation:**
++)))
++(((
++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.
--[[image:1656056751153-304.png]]
++[[image:image-20240715181933-4.png||height="281" width="258"]]
++)))
--[[image:1656056766224-773.png]]
--
--== 6.4  Rain/Snow Detect ~-~- WSS-04 ==
--
--
  (((
--WSS-04 is a RS485 rain / snow detect sensor. It can monitor Rain or Snow event.
++(% style="color:#4472c4" %)** Pipeline installation:**
  )))
  (((
--WSS-04 has auto heating feature, this ensures measurement more reliable.
++Connect the equipment to the pipeline through the 3/4 thread.
  )))
--(((
--WSS-04 is designed to support the Dragino Weather station solution. Users only need to connect WSS-04 RS485 interface to WSC1-L. The weather station main processor WSC1-L can detect and upload the SNOW/Rain Event to the IoT Server via wireless LoRaWAN protocol.
--)))
++[[image:image-20240715182122-6.png||height="291" width="408"]]
++=== 6.3.5  Maintenance ===
--=== 6.4.1  Feature ===
++(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.
++(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.).
++(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.
++(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.
++(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.
++(6) The electrode should be cleaned with deionized water before and after the measurement to ensure the measurement accuracy.
++(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.
++(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.
++(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.
--* RS485 Rain/Snow detect sensor
--* Surface heating to dry
--* grid electrode uses Electroless Nickel/Immersion Gold design for resist corrosion
--=== 6.4.2  Specification ===
++=== 6.3.6 Calibration ===
--* Detect if there is rain or snow
--* Input Power: DC 12 ~~ 24v
--* Interface: RS485
--* Working Temperature: -30℃ ~~ 70℃
--* Working Humidity: 10 ~~ 90%RH
--* Power Consumption:
--** No heating: 12mA @ 12v,
--** heating: 94ma @ 12v.
++OPR01 uses two-point calibration. You need to prepare two known ORP standard solutions, use the RS485 to USB module or TTL to USB module produced by our company to connect to the computer, and use the dedicated software for calibration.
--=== 6.4.3  Dimension ===
++(% style="color:#4472c4" %)**The steps are as follows:**(%%)
++(1) Put the electrode in distilled water to clean it, put it in 86mV standard buffer, wait for the data to stabilize, enter the following calibration command, and the 86mV point calibration is completed.
++(% style="color:#4472c4" %)**"AT+CALORP=86" downlink:0xFD 00 56**(%%)
++(2) Put the electrode in distilled water to clean it, put it in 256mV standard buffer, wait for the data to stabilize, enter the following calibration command, and the 256mV point calibration is completed.
--[[image:1656056844782-155.png]]
++(% style="color:#4472c4" %)**"AT+CALORP=256" downlink:0xFD 01 00**
--=== 6.4.4  Pin Mapping ===
--[[image:1656056855590-754.png]]
++== 6.4  dissolved oxygen Sensor ==
--=== 6.4.5  Installation Notice ===
++(((
++The fluorescence dissolved oxygen sensor is a newly developed online digital sensor, using imported components and advanced production technology and surface mounting technology.
++It has an IP68 waterproof rating, and the cable is seawater-proof. It can be directly put into the water without a protective tube, ensuring the long-term stability, reliability and accuracy of the sensor.
--Do not power on while connect the cables. Double check the wiring before power on.
++The fluorescence dissolved oxygen sensor is based on the principle of quenching active fluorescence by specific substances in physics.
--(((
--Install with 15°degree.
++The blue light from a light-emitting diode (LED) shines on the fluorescent material on the inner surface of the fluorescent cap.
++
++The fluorescent material on the inner surface is excited and emits red light.
++
++By detecting the phase difference between the red light and the blue light and comparing it with the internal calibration value, the concentration of oxygen molecules is calculated, and the final value is automatically compensated for temperature and air pressure.
  )))
-- [[image:1656056873783-780.png]]
++=== 6.4.1  Feature ===
--[[image:1656056883736-804.png]]
++* Small size, low power consumption, easy to carry.
++* Truly achieve low cost, low price, high performance.
++* High integration, long life, high reliability.
++* Up to four isolations, can resist complex interference conditions on site, waterproof level IP68.
++* The electrode uses high-quality low-noise cable, which can make the signal output length reach more than 20 meters.
--=== 6.4.6  Heating ===
++=== 6.4.2  Specification ===
--(((
--WSS-04 supports auto-heat feature. When the temperature is below the heat start temperature 15℃, WSS-04 starts to heat and stop at stop temperature (default is 25℃).
--)))
++* Measuring range: 0-20mg/L, 0-50℃
++* Accuracy: 3%, ±0.5℃
++* Resolution: 0.01 mg/L, 0.01℃
++* Maximum operating pressure: 6 bar
++* Output signal: A: 4-20mA (current loop)
++* B: RS485 (standard Modbus-RTU protocol, device default address: 01)
++* Power supply voltage: 5-24V DC
++* Working environment: temperature 0-60℃; humidity <95%RH
++* Power consumption: ≤0.5W
++=== 6.4.3  Dimension ===
++
++
++[[image:image-20240717105043-2.png||height="232" width="515"]]
++
++=== 6.4.4  Instructions for use and maintenance ===
++
++
++*  Sampling: Take representative water samples according to the sampling requirements.
++* Determine dissolved oxygen in water samples: First rinse the electrode three times with distilled water, then rinse it three times 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 dissolved oxygen when the reading is stable.
++* If it is inconvenient to take samples, you can also put the electrode in the measured solution, wait for the measured data to stabilize, read the output data, and take out the electrode after a period of time. Clean it.
++* After the sample measurement is completed, rinse the electrode three times with distilled water and put the electrode back in the protective solution upright.
++
++Note: When measuring multiple samples, the electrode should be cleaned before measuring the next sample to avoid affecting the experimental data.
++
++If the water conditions are complex and you want accurate data, you need to wipe the sensor probe frequently.
++
++
++
++=== 6.4.5  Precautions ===
++
++
++* To ensure that the electrode measures correctly on the pipeline, avoid bubbles between the measuring cells that may cause data inaccuracy.
++* Please check whether the packaging is intact and whether the product model is consistent with the selected model.
++* Do not connect the wires with power on. After the wiring is completed and checked, power can be turned on.
++* Do not arbitrarily change the components or wires that have been welded at the factory when using the product.
++* The sensor is a precision device. When using it, please do not disassemble it by yourself or contact the sensor surface with sharp objects or corrosive liquids to avoid damaging the product.
++
++
++
  == 6.5  Temperature, Humidity, Illuminance, Pressure ~-~- WSS-05 ==

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