When the industrial environment, daily living environment in the presence of flammable gas places, need to install combustible gas alarm. Combustible gas alarm is mainly used to detect combustible gas in the air, such as hydrogen (H2), methane (CH4), ethane (C2H6), propane (C3H8), butane (C4H10), ethylene (C2H4), propylene (C3H6), butene (C4H8), acetylene (C2H2), propyne (C3H4), butyne (C4H6), phosphine), etc. When the concentration of combustible gas detected in the air reaches the alarm value set by the combustible gas alarm, the combustible gas alarm will send out sound and light alarm signals. Then you know Combustible Gas Alarm What are the classifications? The following is a brief introduction by yi yun Tian:

Combustible Gas Alarms are classified in different ways, can be divided into the following categories:

1. by function:

can be divided into combustible gas detector, combustible gas alarm, combustible gas alarm and combustible gas detection alarm

2. by purpose:

(1) Fixed type: the detector and the combustible gas alarm are installed separately, the former is installed on the work site, and the latter is installed in the instrument monitoring room.

(2) Portable: the detection element and the combustible gas alarm are integrated and brought to the work site by the inspector.

3. by environment:

Industrial Combustible Gas Alarm, Household Combustible Gas Alarm

(1) Catalytic combustion type: use the resistance change of refractory metal platinum wire after heating to measure the concentration of combustible gas, catalytic combustion type combustible gas alarm is generally used to detect petroleum gas, gas, gasoline, gas, methane, acetylene, hydrogen and other combustible gas, its advantage is good repeatability, low power consumption.

(2) semiconductor type (gas sensitive) type): combustible gas alarm adopts gas sensitive semiconductor elements with high sensitivity, the whole machine is small in size, the circuit is relatively simple, and it is very suitable for detection. Hydrogen, methane, ethanol, natural gas, etc. are very sensitive. This kind of combustible gas alarm has high sensitivity, no catalyst poisoning problem, and long service life of the instrument.

To sum up, it is the classification of combustible gas alarms according to different ways. When you choose a combustible gas alarm, you can choose the appropriate combustible gas alarm according to the actual needs, so that the combustible gas alarm is more suitable for you to use.