How much do you know about the components of a gas detector?
The gas detector mainly consists of the following parts: gas sensor unit, detection motherboard unit, power supply unit, alarm unit, sampling unit, human-machine interaction unit, and structural unit, etc. Each unit is an important component of the gas detection instrument. We need to clarify these components, which will be of great help for us to choose gas detection instruments in the future.
The sensor unit of gas detection instruments is mainly designed to determine the type of sensor used, such as catalytic combustion principle, electrochemical principle, infrared principle, semiconductor principle, or photoion principle. The sensor principles used for different gases vary, resulting in varying usage accuracy and performance. In the following chapters, we will discuss in detail the differences in the detection principles of these gas sensors.
Gas detection instrument motherboard unit: This unit involves the stability of the instrument, whether it will be interfered with, whether the electronic components are reliable, and whether the functions are complete. Many manufacturers' motherboard units can be visually seen to be rough and simple in terms of layout design. This type of main board is generally a basic version, with a single manufacturing process design. The motherboard control center mainly serves as a liaison with external units, transmitting instructions externally, and participating in data processing internally.
The power supply unit of gas detection equipment: Generally, we use large capacity lithium batteries for longer use and higher safety.
Alarm unit: This unit is the alarm signal output function of the gas detector. The alarm signals mainly include: sound and light alarm, vibration alarm, alarm relay signal, and other functions.
Gas detector sampling unit: mainly divided into diffusion and pump suction methods for gas sampling. Adopt different methods according to different applications. Generally, fixed gas detectors use diffusion principle sampling.
Gas detector human-machine interaction unit: This mainly refers to the instrument display and function menu. At present, some use digital tube display, some use LCD display, some use symbols to express meanings, and some directly use Chinese or English sentences to identify functions.
The structural unit of the gas detector: mainly from the perspective of external structure and internal structure, whether the shell material has a durable texture, and whether it has ergonomic design considerations. This is also our first sensory consideration for the instrument.
