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1. Select a low-power controller. The controller will work 24 hours a day. If its power consumption is large, it will consume part of the power. A good choice is a controller that consumes less than 1 mA.
2. Select a controller with high charging efficiency. The controller of the MCT charging mode can automatically track the high current of the panel. Especially in winter or periods of insufficient light, the efficiency of MCT charging mode is about 20% higher than other charging modes.
3. Select the controller for bidirectional power regulation. Controllers with power regulation have been widely promoted. When there are few pedestrians at night, one-way or two-way lighting can be automatically turned off to save electricity. It can also adjust the power of the LED lights.
In addition to the above power-saving functions, attention should also be paid to the protection functions of the controller for components such as batteries. In addition, when setting the under-voltage protection value of the controller, try to adjust the under-voltage protection value to ≥ to prevent the battery from over-discharging.
Importance of online monitoring system for pipeline-free gas-type products
The net-gas products are now slowly entering many laboratories. The working principle is that the adsorption of the filter modules, the chemical molecules are trapped in the filter, the indoor air is clean, or meets occupational health standards. . However, it is well known that there is a limit to the adsorption of the filter. When the filter is saturated, it is the most concerned by the users. Only by knowing the saturation time of the filter accurately can the true gas-type product protect the user. Instead of harming the experimenter, polluting the environment.
As the most technologically advanced production enterprise in the industry, Huafeng Technology has been committed to the research of online monitoring systems and launched the Huafeng online monitoring system.
What is the current mainstream judgment filter saturation mode?
Some manufacturers in the market guide customers to buy color beam tubes to check whether the filters are saturated regularly. This method is actually not desirable, because acetone is used as an example. Regardless of GASTEC's 151L model or KITIGAWA's 102SD model, their minimum detection. The limit is generally 20PPM. According to the JG/T 385-2012 standard, 1%TWA (acetone TWA is about 300mg/m3), that is, 3mg/m3, the filter is considered saturated, when you use the color detection tube with the lowest detection limit. When measuring, it is completely deceiving customers! ! ! Professional practice should choose a lower detection limit PID to detect.
What is the working principle of Huafeng online monitoring?
The company uses a high-sensitivity electrochemical probe imported from Japan, combined with the complex situation of the chemical laboratory to carry out a large number of experiments, through the data obtained in the experiment to carry out reasonable software programming, so as to achieve accurate measurement. Huafeng's online monitoring system generally uses acetone as the reference material. The relevant parameters can be adjusted according to the actual situation of different customers, and the calibration coefficient corresponding to each chemical can also be provided. Taking acetone as an example, when comparing with PID, the error is less than 5%, reaching the highest technical level in the industry.
What does Huafeng online monitoring display?
The TVOC concentration and laboratory air quality status of the filter are displayed in ppm on the LCD screen of Huafeng Net Gas Cabinet. The alarm point will be set according to the customer's actual operation before leaving the factory. When the gas chemical concentration after the filter and the indoor air reach the alarm point, the sound and light alarm will work, reminding the customer to replace the filter and check the indoor pollution source. A big feature in ppm is that the customer can know at a glance the working state of the filter, the level of indoor air quality, and the size of the remaining capacity of the filter.
The importance of an online monitoring system! ! !
This paper believes that users must give priority to manufacturers with high-tech online monitoring systems, not to be deceived by some good packaging. In my opinion, when to judge filter saturation is the most important because of this node. It is a qualitative change point in which a product turns from protection to harm! ! !
Monitoring control panel