How to use the combustible gas detector and its principle is to talk to you today. The gas alarm can save our 1 lives when necessary, because sometimes the leakage of gas or the high concentration will be life-threatening. How to use the combustible gas alarm.

several points for attention in the use of combustible gas alarm

when users use the alarm, install air conditioning and heating equipment close to the combustible gas alarm. when using air conditioning and heating equipment, if the cold and warm air flow directly blows over the combustible gas alarm, it may cause the resistivity of the platinum wire of the combustible gas alarm to change and cause errors. Therefore, the combustible gas alarm should be kept away from air conditioning and heating equipment to avoid malfunctions caused by improper setting positions.

Users should also pay attention to electromagnetic interference during the use of combustible gas alarms.From the principle of combustible gas alarm, it can be seen that if electromagnetic interference occurs, the detection signal will be affected and data deviation will occur. If there is collision and vibration, the equipment will fail to detect. If the environment is too humid or the equipment enters water, it may also cause short circuit of combustible gas alarm, or change of line resistance value, resulting in detection failure. The installation position, installation angle, protective measures and system wiring of combustible gas alarm shall be protected from electromagnetic interference.

combustible gas alarm principle

when there is no combustible gas in the air, the bridge output is zero, when the air contains combustible gas and diffuse to the detection element, flameless combustion occurs due to catalytic action, which increases the temperature of the detection element, increases the resistance of the platinum wire, and causes the bridge to lose balance, thus outputting a voltage signal. The voltage is proportional to the concentration of combustible gas. The signal is amplified and converted to A/D, and the concentration of combustible gas is displayed through the liquid display. The principle of the detection part is that when the measured combustible gas concentration exceeds the limit value, the amplified bridge output voltage and the circuit detect the set voltage, through the voltage comparator, the square wave generator outputs a 1 group of square wave signals to control the sound, The light detection circuit, the buzzer produces a continuous sound, the light-emitting diode flashes, and sends out a detection signal.

how to use the combustible gas alarm and its principle have been told to everyone. friends who need to know combustible gas alarm can come to yiyuntian for consultation and understanding. we have professional personnel to answer your questions.