Gas explosions caused by gas leaks continue to occur. After installing gas alarm devices, it can effectively prevent the occurrence of malignant accidents such as explosions and fires, and ensure the safety of business premises. What are the classification standards for gas alarms?

Classification Standard 1: Detecting Different Gases

Gas alarms used to detect toxic gases such as chlorine, ammonia, nitrogen oxides, phosgene, hydrogen fluoride, sulfur dioxide, and sulfur trioxide are called toxic gas alarms, while gas alarms used to detect flammable gases such as natural gas and liquefied petroleum gas are called toxic gas alarms. Hydrogen gas is called a combustible gas alarm.

Classification standard 2: Different usage scenarios

According to the usage environment, it can be divided into two types: industrial gas alarm and * alarm. Industrial gas alarms are mainly used in large factories and other industrial sites. *The alarm is mainly used to monitor the concentration changes of liquefied petroleum gas and natural gas in the home in real time. When the gas reaches the alarm value, the alarm will sound to ensure people's safety.

Classification standard three: Different product forms

According to different product forms, gas alarms can be divided into two types: fixed and portable. Fixed gas alarms are generally installed in fixed positions, with the installation height determined by the specific gravity of the gas being measured. It needs to be installed at a height of 30-50 centimeters above the ground. Similarly, if the specific gravity of the measured gas is lower than that of air, it needs to be installed at a distance of 30-50 centimeters from the roof; Portable gas alarm, also known as portable gas detector, has a volume similar to that of a mobile phone. Yes, it can be turned on and used anytime. The downside is that it requires timed charging.

classificationStandard 4: Different gas sensors work on different principles

Combustible gas alarms generally use catalytic combustion gas sensors, which have the advantages of good output signal linearity, reliable indicators, and low cost. Toxic gas alarms generally use electrochemical gas sensors. The advantages of electrochemical gas sensors are the ability to detect specific gases, linear output, low power consumption and good resolution, good repeatability and accuracy, and no interference from other gases. More economical than most other gas detection technologies.