Shandong China Coal Group Instrument Branch

The bus system is also called RS485, and the branch system is also called 4-20mA model. The gas detector currently mainly uses these two wiring methods, each with its corresponding alarm host. Gen

The development of nuclear radiation detectors is one of the signs of progress in nuclear technology. The level of development and production of a country ’s nuclear radiation detectors is also one of

The urban underground pipeline network includes urban water supply, drainage, electricity supply, natural gas supply and communications. It is an important part of urban infrastructure. The undergroun

A large number of pipelines are used in modern industrial and agricultural production and daily life, such as steam generator heat transfer tubes in nuclear power plants, industrial pipelines and gas

It can be used to detect the construction quality of existing reinforced concrete projects and newly-built reinforced concrete structures: determine the location and reinforcement of the reinforcement

By placing the instrument in the corresponding test gas of known concentration and comparing the detection result of the gas detector with the gas concentration, the gas detector can be calibrated to