Learn more about gas alarms through this article

Gas alarm is a Gas Detector with gas leakage alarm function. Its main function is to alarm by detecting the concentration of combustible gas in the surrounding environment. Gas alarm is widely used in homes, hotels, restaurants, commercial complexes and other places.
The gas alarm can be installed indoors or outdoors, or in the kitchen. When the indoor gas concentration is detected to exceed the standard, the alarm sound will be automatically issued, and its specific concentration through the display screen to remind users to pay attention to safety.
The gas alarm is composed of gas sensor, signal amplification circuit, control circuit and power supply. Its main function is to detect the concentration of combustible gas in the surrounding environment.
 
Functional characteristic
1. Imported gas sensor, high sensitivity and stable performance.
2. Imported high-quality semiconductor catalytic combustion sensor, small size, fast response and long service life.
3. Using large capacity battery for long service life.
4. The alarming sound is loud, which can effectively remind users to pay attention to safety.
5. It has voice alarm function and can remind users in time.
6. It adopts integrated design with compact structure and convenient installation.
7. Adopt pluggable design to facilitate user's later maintenance.
8. It has the function of automatic protection of low power.
When the detector is working normally, it can automatically detect whether the detector has a fault or not when there is no external signal input; when the detector is working in an abnormal state, it can automatically detect whether the detector has a fault or not; and it can automatically alarm when the detector has a fault.
 
Principle of operation
The working principle of gas alarm is that gas sensor transforms various components of gas into electrical signals, amplifies them through signal amplifying circuit and then amplifies them to set value. When the combustible gas reaches a certain concentration, the gas alarm will send out sound and light alarm. In the case of gas leakage, the gas alarm will send out vibration signals.
 
Structural composition
The gas alarm is mainly composed of gas sensor, signal amplification circuit, control circuit and power supply. Gas sensor is a device to detect the concentration of combustible gas. Its main function is to convert the concentration of gas into electrical signal, and then amplify the signal by amplifying circuit. The signal amplification circuit amplifies the signal and then connects the power of the gas alarm through the control circuit. After the power is connected, the gas alarm will enter the working state. The control circuit controls the switch of the gas alarm to control the gas alarm to sound the alarm.
 
Material selection
1. The sensors are imported and have a very low false alarm rate during their useful life without special requirements for the working environment.
2. The gas sensor is imported catalytic combustion sensor, which has good performance in detection accuracy, response speed, stability, sensitivity, etc.
3. The power supply adopts the design of full sealing structure, with good waterproof and electricity-proof effect, and the shell adopts explosion-proof material, which can adapt to various harsh environments.
4. The display instrument adopts liquid crystal display to visually display the gas concentration value, so as to facilitate users to know the danger degree at any time.
 
Notes for Use
1. The gas alarm shall be installed in a well- ventilated place, avoiding direct sunlight, dust and water.
2. The fuel gas alarm shall be checked regularly to see if it is working normally, and be repaired or replaced in time in case of malfunction.
3. The fuel gas alarm shall be maintained regularly to ensure its normal operation.