How does gas alarm work?
According to the type of gas, gas alarm can be divided into two types, namely combustible gas and toxic gas.
According to the different use environment, it can be divided into two categories: household and industrial. The alarms used in different environmental locations also have different pertinence. There is also a portable gas detector for convenient detection of confined spaces or personnel inspections. The only difference from ordinary gas alarms is that they can be carried around. It can detect the gas concentration in different locations. No need to externally connect to other equipment, and solve and deal with problems in a timely manner.
The composition of the gas alarm
The gas alarm is mainly composed of two main parts. One is the alarm control host and the other is the detector. The alarm control host can be placed in the duty room. The detector needs to be installed in a location where it is convenient to detect gas leaks.
The working principle of the gas alarm
Gas alarm The gas alarm monitors the concentration changes in the air through a built-in sensor. Detect whether the concentration in the air reaches the preset alarm value. The alarm controls the host when the detector senses a hazard signal. The change of gas concentration will be sent to the controller. The controller judges the size of the density change by the strength of the electrical signal. Link external equipment when the intensity of the concentration change signal exceeds the preset alarm point. The alarm will send out an alarm action. And it can start the external solenoid valve, fan and other equipment accordingly. When the intensity of the concentration change signal exceeds the preset alarm point. The alarm will send out an alarm action. And it can start the external solenoid valve, fan and other equipment accordingly.
Optional IOT module linkage external equipment: solenoid valve, fan, etc. When the intensity of the concentration change signal exceeds the preset alarm point. The alarm will sound an alarm, and can automatically start the solenoid valve, exhaust fan and other ventilation equipment.
In summary, the purchase of gas alarms requires complete qualifications. Quality assurance products. Therefore, three suggestions are made:
Products must have fire protection certification. Authoritative certification such as explosion-proof certification and patent certificate. Choose a merchant with a complete pre-sale and after-sale system. Professional technical guidance installation and other professional services.