Working Principles & Measuring Ranges for Toxic Gas Detectors
With the development of industrial society, a large amount of toxic gases may be generated during production in many enterprises. These gases cause great harm to human health. Therefore, it is necessary to continuously monitor the concentration indicators of such gases so as to protect the safety of construction personnel and reduce accidents.
Some people may wonder how toxic gas detectors measure toxic gases. The working principle is explained below.
As instruments for detecting component indicators of toxic gases, toxic gas detectors are generally equipped with a detector, which can effectively identify the types and concentration ranges of toxic gases. A detector alone is not sufficient. To feed measured data back to operators, the instrument is also fitted with a sensor mainly used for data transmission, facilitating monitoring work.
During operation, the detector can automatically identify ITM and adopt seamless connection instead of the traditional field wired connection. Toxic gas detectors feature simple operation; operators can control the instrument with a magnetic wand. Measurement results are displayed on an LED screen, and other operations can be performed in accordance with the user manual. In addition, users shall select a proper toxic gas detector based on the gas types and concentration ranges to be measured.
Applications and Detection Range of Toxic Gas Detectors
Detectable gases include C₂H₃O, acetylene (C₂H₂), acrylonitrile (C₃H₃N), ammonia (NH₃), arsine (AsH₃), bromine (Br₂), butadiene (C₄H₆), carbon disulfide (CS₂), carbon monoxide (CO), carbonyl sulfide (COS), chlorine (Cl₂), chlorine dioxide (ClO₂), diborane (B₂H₆), dimethyl sulfide (C₂H₆S), ethanol (C₂H₅OH), ethanethiol (C₂H₅SH), ethylene (C₂H₄), ethylene oxide (C₂H₄O), fluorine (F₂), formaldehyde (CH₂O), germane (GeH₄), hydrazine (N₂H₄), hydrogen (H₂, ppm level), hydrogen bromide (HBr), hydrogen chloride (HCl), hydrogen cyanide (HCN), hydrogen fluoride (HF), hydrogen sulfide (H₂S), methanol (CH₃OH), methanethiol (CH₃SH), nitric oxide (NO), nitrogen dioxide (NO₂), ozone (O₃), phosgene (COCl₂), phosphine (PH₃), silane (SiH₄), sulfur dioxide (SO₂), tetrahydrothiophene (C₄H₈S), thiophene, toluene (C₆H₅CH₃), vinyl acetate (C₄H₆O₂), vinyl chloride (C₂H₃Cl) and more than 60 kinds of conventional toxic gases.
Toxic gas detectors are widely used in petrochemical and chemical production plant areas, as well as municipal engineering, fire protection, gas engineering, telecommunications, coal mining, metallurgy, electric power, pharmaceutical, food processing and other sites with toxic and hazardous gases.
