The gas alarm is a measuring instrument for safety protection. When toxic and harmful gas leaks, the detector will give an alarm. It is a safety device to prevent poisoning, explosion, fire and other accidents. "Director Hao of the Safety Inspection Room of Yantai Metrology Institute said.
For example, hydrogen in the air will cause an explosion when the concentration exceeds 4%. Therefore, in the environment with hydrogen, a flammable gas alarm must be installed to monitor the hydrogen.
Widely used in metallurgy, petroleum, chemical, petrochemical, coal and other industries and municipal gas, storage, transportation, hotels and restaurants and fire departments. When the flammable or toxic gas leaks in the environment, when the gas concentration reaches the explosion or poisoning threshold set by the alarm, the flammable gas alarm will issue an alarm signal to remind the staff to take safety measures to prevent explosion, fire and poisoning accidents To ensure safe production. Industrial automation instruments mainly include transmitters, regulators, regulating valves, gas detectors and other equipment. Gas alarms have started with base-type regulators, and have undergone combined instrumentation of qigong and electric units to computer control systems, until today's decentralized control systems. DCSDCS has traveled more than 20 years. DCS has developed rapidly due to its high reliability, convenient configuration software, rich control algorithms, and open networking capabilities. It has become the mainstream of computer industry control systems.