hydrogen sulfide is the 1 kind of flammable toxic colorless gas, it volatilizes in the air after being absorbed by the human body will have a certain threat to human health, different concentrations have different hazards to the human body. Therefore, it is necessary to install a hydrogen sulfide detector to detect the concentration of hydrogen sulfide gas in environments where hydrogen sulfide gas is present, such as oil refineries, chemical plants, desulfurization plants, oil/gas wells, sewers, swamps, etc. However, in the process of using the hydrogen sulfide detector, the concentration alarm value is set. Do you know how the hydrogen sulfide detector concentration alarm value is set? The following is a brief introduction by yi yun Tian:

setting method of hydrogen sulfide detector concentration alarm value:

Press GB 6222-2005 Industrial Gas Safety Regulations, Hygienic Standards for Design of Industrial Enterprises (GBZ1-2002), and Occupational Exposure Limits for Hazardous Factors in Industrial Sites (GBZ2-2007).Under normal circumstances, the hydrogen sulfide detector will be divided into 3 levels to set the concentration alarm value:

primary alarm 1/2 TLV = 5ppm

secondary alarm 1TLV = 10ppm

Level 3 alarm 2TLV = 20ppm

When the working environment is labor intensive, where the air flow is general, a first-level alarm needs to be set. Places with good air circulation and less personnel flow that will not cause major accidents can be set to a second-level alarm accordingly. When the environment is in a sparsely populated place in the suburbs, it can also be set to a third-level alarm level.

To sum up, it is the setting method of the concentration alarm value of the hydrogen sulfide detector. When setting the concentration alarm value of the hydrogen sulfide detector, you must pay attention to the setting of the limit value of the occasion you need to use to set the concentration alarm value of the hydrogen sulfide detector. Only in this way can you ensure the accuracy of the detection data and better protect your safety.