Working principle of fully automatic induction faucet



The fully automatic sensing faucet is based on the principle of infrared reflection. When the human hand is placed in the infrared area of the faucet, the infrared emitted by the infrared emitting tube is reflected to the infrared receiving tube due to the shielding of the human hand. The signal processed by the microcomputer in the integrated circuit is sent to the pulse electromagnetic valve. After receiving the signal, the electromagnetic valve opens the valve core according to the specified command to control the faucet's water outlet; When the human hand leaves the infrared sensing range, the electromagnetic valve does not receive a signal, and the valve core of the electromagnetic valve is reset through an internal spring to control the turning off of the faucet.
Induction interval: The infrared emission length, also known as the induction interval, is mostly around 25CM (29.7cm) when leaving the factory × 29.7cm white A4 paper test scale), ordinary people may not react quickly when encountering fully automatic sensing faucets, mostly due to the shortened sensing interval. This is because the infrared resistance color is weak, and darker colors in the department will change their spacing. For example, black will reduce the sensing interval by about 15% of the original; If the induction line is damp, it can also affect the accuracy of the induction interval.
Selection of fully automatic sensing faucets



1. The electromagnetic valve department has good waterproof function
Due to long-term installation under the basin, if the machine is damp, it will cause poor contact and prevent it from working; The minimum lifespan of solenoid valves should meet industry standards (over 150000 cycles).
2. The craftsmanship of faucets
The appearance is scratch free, and the chrome plating is good. It is forged with brass. The low priced fully automatic sensing faucet has poor chrome plating and weight on the faucet body, and cannot pass the 24-hour salt spray test, with a weight of about 400 grams. On the other hand, good manufacturers of fully automatic sensing faucets can control the weight of the faucet body to be over 500 grams and can pass the 48 hour salt spray test, resulting in a long lifespan of the faucet.
3. Does the infrared sensing department use epoxy resin sealing or moisture-proof treatment
Waterproof plugs are used to connect the plug, and the circuit is controlled by a low-power microcontroller, which has anti-interference ability to light and does not cause misoperation; The induction interval is adjustable by a remote control, and manual adjustment can easily damp the circuit board, shorten the induction interval, and affect normal use; The automatic adjustment interval technology is not mature and may become shorter due to color changes. Remote control adjustment makes the product more humane.



4. Try to choose a qualified professional manufacturer of fully automatic sensing faucets
Because over 90% of the fully automatic sensing faucets of professional bathroom and sanitary ware factories in China are outsourced, the quality, after-sales service, and price are not satisfactory.
5. After sales service capability
Don't trust too many promises and guarantees. Some manufacturers and merchants promise a 5-year warranty free in order to expand sales, and attract customer attention with low prices. The company has only been developing for less than two years, and when it comes to product quality problems or product warranty issues, they charge customers maintenance fees and fail to fulfill the product related three guarantees policy. Many users' consumer rights cannot be guaranteed.
Daily maintenance of fully automatic induction faucet



1. Use a soft cloth dipped in an appropriate amount of toothpaste to clean the surface, then clean the surface of the faucet with clean water. Do not use alkaline cleaning agents, hard objects, or steel balls to scrub to avoid scratching the electroplated surface of the faucet and affecting its appearance.
2. The outlet of the faucet is equipped with a bubbler. Due to water quality issues, the water output of the faucet often decreases after a period of use. This may be due to the bubbler being blocked by impurities. The bubbler can be unscrewed to remove impurities with clean water, and then reinstalled in its original state.
3. The surface electroplating and craftsmanship of the faucet are relatively fine, and it cannot withstand direct collision or surface wear from hard objects. Therefore, during use, it is advisable to avoid contact with hard objects such as handicrafts as much as possible to prevent scratches on the surface of the faucet.
4. The power department of the fully automatic induction faucet prohibits flushing with water to avoid circuit failures. Avoid installing in a damp place.
5. The sensing window should be kept clean to prevent water and other foreign objects from sticking to the surface.




Reading source: Kaiping bathroom faucet manufacturer www.baolonghs.com