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Types Of Gases That A Gas Detector Can Detect And Its Working

Various kinds of harmful gases are used in various industries. There are chances for hazards caused due to the leak and improper use of these deadly gases. One of the challenging aspects of preventing disaster is that these gases are odourless, tasteless and are invisible. Gas detectors are used to detect the presence of these toxic gases and save the lives of people in and around various industries. The types of gases that can be detected by a gas detector and its working are detailed below.

Hazardous gases are classified into three main types which include combustible, toxic and asphyxiant.

Combustible Gases

These are highly dangerous gases as they can explode when they come in contact with fire or electricity. Thus it can be a significant threat to human life. It can cause damage to property as well. Some of the common types of combustible gases are ethane, butane etc. It is said that even oxygen is a flammable gas and it can be dangerous when stored in a high-pressure cylinder.

Toxic Gases

These types of gases are poisonous for human beings and can cause headache, vomiting or even death. Carbon monoxide, hydrogen sulfide are some of the toxic gases.

Asphyxiant Gases

These types of gases prevent the oxygen supply for humans thus lead to the grasping of breath. Death can also occur due to the leak of asphyxiant gases.

Working Of Gas Detectors

There are various types of gas detectors which detect the presence of specific gases. The gas detectors can be classified based on the nature of the gas that it should detect. The main component of gas detectors is the sensor. The type of the sensors would vary based on the type of gas you're dealing with.

Catalytic Sensors: This type of sensors is used in gas detectors to detect the presence of combustible gases. A platinum treated coil gets heats up when there is a presence of combustible gas.

Infrared Sensors: This type of gas detectors makes use of transmitters and receivers for detecting the presence of gas. These two components function as a light source and light detector so that it can detect the presence of combustible gases.

Electrochemical Sensors: This type of sensor is used in detectors for detecting toxic gases. These sensors function with the help of electrode signals. They provide signal using electrical currents.

Types Of Detectors

Gas Detectors can be categorized based on their function and their make. The three different types of detectors are
  •         Fixed System
  •         Portable Detectors
  •         Addressable System
Thus you would have a clear idea about the working of a gas detector and how it helps in saving the lives of people.

Read More : Role Of Gas Detectors In Refineries


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