What is a gas meter?
Gas meters are devices for detecting the presence or absence of various gases in different areas and are often considered as part of a safety system. Gas meters and gas detectors can activate alarms for the regional operator or, by connecting to an advanced fire extinguishing and safety system, call scheduled items in the system. These can include staff exit alarms and dispatch. Safety group or other items Detectors and gas tracking systems are very important in all industries, especially the oil and gas industry, chemical processing centers and other similar cases because there are many gases in these areas that can live. Humans and animals and even the destruction of the environment and structures are destructive
Gas detectors can detect flammable and flammable gases, toxic gases and oxygen depletion cases. In other words, gas meters are responsible for detecting gas leaks and the process of detecting potentially dangerous gas leaks by sensors. In addition, the detection operation can be performed visually by using a thermal camera and special sensors installed on them.
Gas detector sensor
Gas meters can be used in industrial operations such as painting and industrial paint rooms, soil excavation, landfill operations, indoor air quality control, etc. Common gas detector sensors include combustible gas sensors, photonization detectors ( photoionization), gas meter infrared sensors, ultrasonic sensors, electrochemical gas sensors and metal oxide semiconductor sensors and the like. Recently, several models of infrared imaging sensors have been introduced to the market, and in the following, we will review some models of these equipments.
All of these sensors are used for a wide range of applications and can be used in industrial plants, refineries and petroleum refineries, drug industries, paint and gas incense plants, paper and pulp factories, aviation facilities and Shipbuilding, measurement operations, detection of toxic and hazardous gases, sewage treatment plants, vehicles, air quality testing and homes.
History of manufacturing and inventing various types of gas meters
After discovering the effects of toxic gases on the health of the human body, gas leak detection methods became a concern for engineers and employers. Before the invention of modern electronic sensors and gas trackers, during the 19th and early 20th centuries, canary coal miners tuned canaries as a detection system against threatening gases such as carbon dioxide, carbon monoxide and methane. They were digging. Canaries usually sing, due to the high sensitivity of this curtain to the mentioned gases, in case of a leak, the canary stops and eventually dies, and this is considered as a warning for the miners to leave the mine quickly. The first gas detector in the industrial age was the Davy lamp, invented by Sir Humphrey Davy in 1815 to detect the presence of methane in underground coal mines. The Davy lamp consisted of an oil-fired flame that was adjusted to a specific height in fresh air. The flame was placed in a glass cylinder to prevent the lamp from igniting suddenly. The height of the flames was lower due to the presence of higher methane or lack of oxygen. This difference in flame was a measure of gas in the mine. Dewey lamp is still in use in some parts of the world !!!!!!
The modern era of gas meters began from 1926 to 1927 with the development of catalytic combustion sensors (LEL) by Dr. Oliver Johnson. He began research and development on a way to identify combustible airborne mixtures to prevent explosions in fuel storage tanks. He built a demonstration model in 1926 and produced his first operational gas meter in 1927 with the release of the Model B. The world’s first gas discovery company, Johnson Williams Instruments, was founded in 1928 by Dr. Oliver Johnson and Phil Williams. In the 40 years since the founding of JW Instruments, it has grown and made its device smaller and more portable, making and developing a portable oxygen detector as well as combining oxygen and combustion gas measurements together. Was a company
Before the development of electronic carbon monoxide detectors in the 1980s and 1990s, the presence or absence of carbon monoxide was checked by a chemical paper detector that turned brown when exposed to gas !!!!! Since then, many technologies have been developed to detect, monitor and warn of massive gas leaks.
Early models of gas meters were produced to detect only one type of gas. But today’s gas detector equipment and systems detect several toxic or combustible gases, or even a combination of these. New gas analyzers can analyze small (minimal) gas signals from a complex odor and simultaneously Identify the gas.
How to calibrate a gas meter
It should be noted that different types of gas detectors and analyzers are available in the market and each of them has a specific process for calibration according to the knowledge of the manufacturer. However, most of these equipments are automatically calibrated in open space and so-called fresh air calibration , and in the next steps, they are adjusted according to the type of gas by the desired capsule and calibration device. Gas meters that faceCarpet AirThey are regulated, mainly measuring gases in the air such as O2 and CO2, etc. Other gas detectors used to measure and analyze toxic gases, etc., must be calibrated by capsules or special devices of the same company. In the following, we will see a video on how to calibrate the BW Gas Alert Max XT II gas meter made by the American company Honeywell.
Note: To learn exactly how to calibrate any type of gas detector, it is better to first read its user guide. Dear ones, by referring to the following link, you can get the user guide and specifications of all gas meters available in the Cianco store.
Types of gas meters in Cianco Trading
Analyzers and types of gas meters can use semiconductors, oxidation, electrochemical, catalytic, photoionization, infrared, etc. according to their working mechanism. Gas detectors are divided into two main groups in terms of appearance: portable gas meters and fixed gas analyzers.
Rose Calibration Company in Melbourne, Australia with over ten years of experience provides all calibration, maintenance, and repair services throughout Australia. If you live in Sydney, Melbourne, Adelaide, Perth, Geelong, and Brisbane, you can receive your quote in less than two hours by fill-up the form via the “Booking” link.