Before understanding H2S gas sensor, understand hydrogen sulfide gas. Hydrogen sulfide is a flammable, acidic gas in standard condition, colorless and has a rotten egg smell at low concentrations.
If the concentration is very low, it will have a sulfur taste, which is highly toxic. When mixed with air, it can form an explosive mixture. When exposed to flame and high heat energy, it will cause combustion and explosion.
If hydrogen sulfide exists in the environment, it will pose a great threat to human health, even cause life safety, may also lead to explosion, resulting in blasting accidents.
Hydrogen sulfide gas introduction:
Hydrogen sulfide is a powerful neurotoxin that is harmful to human health.
It has a strong stimulating effect on mucous membrane. It is soluble in water, 0℃ 1 mole of water can dissolve about 2.6 mole of hydrogen sulfide.
At present, in the field of coal mining and environmental pollution, there are clear safety indicators for hydrogen sulfide.
In the national standard, the highest allowable concentration of hydrogen sulfide in the air is 10mg/m³. And the concentration of hydrogen sulfide in the underground air cannot exceed 0.000066%.
Electrochemical H2S gas sensor is the core component of hydrogen sulfide alarm. Electrochemical H2S gas sensor is the use of electrochemical principle will be measured gas content into electrical signals.
Many kinds of toxic gas detection is the most potential electrolysis gas sensor, it has high sensitivity, good selectivity, simple structure, the use of life is relatively short and so on.
Hydrogen sulfide gas alarm should pay attention to the use of the instrument sensor within the validity period, the general validity period is two years.
JXCT H2S gas sensor, high precision, linearity, good stability, temperature and humidity resistance, strong anti-interference ability.
Widely used in coal mines, chemical industry, sewage, natural gas, non-ferrous metal smelting, can be real-time monitoring of the environment of hydrogen sulfide gas to ensure human life and health.
One of the most commonly used hydrogen sulfide sensors is H2S-A1 with a two-year life.