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Infrared sensor switch
Infrared sensor switch
Infrared sensor switch, English name: Infrared Sensor Switches infrared sensor switch full name pyroelectric infrared sensor switch. Any object in nature, as long as the temperature is above absolute zero (-273 ° C), always emits infrared radiation continuously. The higher the temperature of the object, the smaller the peak wavelength of the infrared radiation emitted by it, and the greater the energy emitted by infrared radiation. . When a person enters the sensing range, the pyroelectric infrared sensor detects the change of the infrared spectrum of the human body, automatically turns on the load, and the person does not leave the sensing range, and will continue to be turned on; after the person leaves, the delay automatically turns off the load.
The main component of the infrared sensor switch is a pyroelectric infrared sensor. The human body has a certain body temperature, usually 36--37 degrees, so it emits infrared light of a specific wavelength. The human body emits 9.5um infrared rays and is concentrated to the infrared through the Fresnel lens. In the induction source, the infrared sensing source usually uses a pyroelectric infrared sensor. When the temperature of the infrared radiation received by the human body changes, the component loses the charge balance and releases the charge outward. The subsequent circuit can trigger the switching action after being detected and processed. .
product description
The infrared sensor switch is an automatic control switch based on infrared sensing technology. It realizes its automatic control function by sensing the infrared heat emitted from the outside, and can quickly turn on various electrical equipment such as lamps, automatic doors and burglar alarms. [2]
Functional characteristics
1. Ultra low power design, can be connected in series in the lighting circuit of the luminaire, unipolar control).
2. The control illumination can be adjusted: if counterclockwise adjustment, the switch can be activated under the illumination with stronger illumination; if it is adjusted clockwise, the switch can be started under the illumination with weaker illumination.
3. Delay time can be adjusted: the adjustment range is about 20 seconds to 6 minutes. If counterclockwise adjustment, the delay time becomes shorter; clockwise adjustment, the delay time becomes longer. Performance index: 160~250V (AC) Static power consumption Current: Less than 0.3mA Ambient operating temperature: -20°C～50 °C Automatic delay time: 20 seconds to 6 minutes Control load power: 5 ~ 200W Sensing distance: 6m Induction angle: 140 ° cone angle Load range: incandescent / / exhaust fan control illuminance: 5LUX-500LUX (adjustable) Appearance size: 86X86X25mm
Installation and use
Before we understand the advantages of infrared sensor switches, let's take a look at how it works. The infrared sensor switch is an automatic control lamp switch based on infrared sensing technology. It determines the light and non-brightness of the lamp by the principle of infrared reflection. In the area where the infrared sensor switch is installed, some infrared rays are scattered in this area. When people enter this area or the body touches the infrared rays, The infrared light reflected from the human body transmits this signal to the solenoid valve. When the solenoid valve receives the signal, it will brighten the lamp. When the human body walks out of the infrared region, the solenoid valve will not feel the return signal. It will turn off the original bright light.
Advantages of infrared sensor switch
The infrared sensor switch is a technology product that combines energy conservation resources with water resources. Today, infrared sensor switches are not only used in various places in the home, but also widely used in some public places. The most common ones are the student dormitory building and the teaching building corridor. In addition, many lamps are often used in the washrooms of supermarkets and hotels. This can prevent people from turning off the lights and waste a lot of electricity after leaving.
In fact, the products manufactured by the principle of infrared induction not only have such lamps and faucets. When we put our hands under the faucet, the infrared rays around the faucet sense the presence of the hand, and the reflected signal is received by the water valve to release the water, and the faucet automatically closes after the person leaves. This can prevent people from wasting water when they don't turn off the taps in time.
Infrared sensor switch installation
First of all, when installing the infrared sensor switch, the power must be cut off first. The reason why the power supply is cut off is to prevent short circuit during the installation process. The second is to choose the location of the installation, do not install in places where the sun can be direct or the airflow is smooth, these places will hinder the infrared induction work. The last installed infrared sensor switch is preferably a dual-element probe, so that the surrounding people can be 100% sensed no matter which direction they are coming from.
1. Do not install live wiring, do not short-circuit the load, control the fluorescent lamp, energy-saving lamp products, the first power-up, it may take 30 ~ 60 seconds internal voltage to establish the time, the switch can work normally.
2. Since the starting current of fluorescent lamps and energy-saving lamps is large, it is recommended to control one or less loads with one switch.
3. Do not install the product where there is hot air. If the control load is hot, it should be more than 1 meter.
4. There is no zero line without emergency control. The 2-wire product does not need to consider the polarity of the wiring. If there is emergency control or there is a neutral product, it must be connected according to the diagram (no emergency control product EM terminal is not wired).
5. When adjusting the light control illuminance and delay time knob, the force should be moderate, and the force will cause damage to the product.
In today's low-carbon environment, inductive switches have done this, very good, the above is the type and introduction of infrared inductive switch products provided by Xiaobian, I hope to be helpful to everyone. If you want to know more information, please pay attention to a decoration network, together with the decoration network will provide you with more complete, more detailed, updated information.