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Operation Q&A
Why does the battery of the microclimate weather station swell? Will it explode?
A:
  
Usually the expansion is caused by long-term power outage.
If the swelling is too severe, it is not recommended to use
It's OK if it's a little more bulging
Because the power shortage is too serious, there will be no explosion problem
Q: Why is there so little real-time electrode sensing of nitrite?

ChatGPT's reply: (For reference)
A: The main reason lies in the chemical properties of nitrous acid itself and the limitations of electrochemical detection technology:
(1) Unstable redox reaction: The redox potential of nitrous acid is relatively unstable and it is easy to decompose or form by-products under electrochemical conditions. This will lead to inaccurate test results and place high demands on the selection and surface treatment of electrodes, increasing the technical difficulty.
(2) Insufficient sensitivity and selectivity: The concentration of nitrite in the environment is usually very low, so the detection system needs to be extremely sensitive. However, electrodes are easily interfered with when measuring low concentrations of nitrite, especially common interferents such as chloride ions and sulfate ions, which can affect the accuracy of the measurement and cause errors.
(3) The electrode surface is easily contaminated or poisoned: In the solution, nitrous acid may react with the electrode surface to form deposits or by-products, further reducing the sensitivity and stability of the electrode, making the electrode easily "poisoned", which also affects the reusability of the electrode.
(4) Cost and life issues: Compared with colorimetry, the design and manufacture of electrodes are more complicated. The cost of electrode materials is high, and the life of electrodes is relatively short. Colorimetric methods are generally cheaper, more convenient, and have better stability and repeatability in on-site testing.
For these reasons, the detection of nitrite currently mostly adopts the drop colorimetric method, because this method is simple and easy, has low equipment cost, less interference, and is widely used in environmental testing and food safety. Although electrode-based detection has the potential to provide rapid and instantaneous detection, the above-mentioned technical challenges still need to be overcome to achieve reliable nitrite detection electrodes.
Does the smart switch box have the function of feedback control?
A: Yixing brand smart electric box has feedback control function, which can truly achieve labor saving, energy saving and IoT application.
1. The water quality can be set according to the threshold to automatically open or close or adjust the water wheel speed and alarm notification
2. The water wheel width or speed can be adjusted according to the wind strength (frequency conversion system) and alarm notification can be given.
3. You can also determine the feeding amount based on precise feeding and sensing activity
Please contact the sales department for customized requirements
Can the lens see clearly when the pool water is turbid?
A: Yixing brand underwater photography is a patented device designed by NTU/NHUA to monitor the activity, growth and feeding of fish and shrimp in the water.
The patented design of the box is sealed so there is no problem of turbid water and difficulty in seeing clearly. When fish and shrimp are feeding on the plate, AI will judge clearly and indicate that they are closer to the plate.
Analyze its body length and upload the data to the cloud for future analysis
 
How to clean the contaminated underwater photography observation plate?
A: If contaminants are deposited due to long-term non-use, they can be removed with a cleaning brush. The viewing tray is made of transparent glass.
Easy cleaning, no need to lift the device for cleaning