The industrial fixed gas alarm consists of an alarm controller and a detector. The controller can be placed in the duty room and mainly controls the monitoring points. The detector is installed in the place where the gas is most likely to leak. Its core component is built-in gas. The sensor detects the concentration of gas in the air. The detector converts the gas concentration detected by the sensor into an electrical signal, which is transmitted to the controller through the cable. The higher the gas concentration, the stronger the electrical signal. When the gas concentration reaches or exceeds the alarm point set by the alarm controller, the alarm device emits Alarm signal, and can activate externally connected equipment such as solenoid valves, exhaust fans, and automatically eliminate hidden dangers.
The portable gas detector is hand-held, which can be carried by the staff to detect the gas concentration in different places. The portable gas detector integrates a controller and a detector, which is compact and flexible. Compared with fixed gas alarms, the main difference is that portable gas detectors cannot be connected to other equipment.
Classification of gas alarms
According to the detection gas, it can be divided into: combustible gas alarm, toxic gas alarm and composite gas alarm. The gas alarm uses different sensors to detect different gases.
The composite gas alarm can detect both flammable and toxic gases. According to the use environment can be divided into: industrial gas alarms and household gas alarms. According to its form, it can be divided into fixed gas alarms and portable gas detectors.
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