Because the production process of the transmitter is very complicated, there are situations where the transmitter cannot work normally due to the unreasonable internal parameter settings of the transmitter, resulting in problems such as the failure of the entire system to operate normally and the switch tripping.

Keywords: Yokogawa Instrument, Coal Chemical Industry, Hydrogen PermeationAbstract: In the coal chemical industry, pressure transmitters are used in many occasions. However, compared with traditional industries, there are many working conditions where the medium is black water or gray water, the tem