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The Model 430 uses the proven UV Absorption principle, producing accurate and stable O3 measurements. The small footprint and quiet operati
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Gas Monitors
TELEDYNE API T400 O3 Series (TAPI)
The Model T400 UV Absorption analyzer uses a system based on the Beer-Lambert law for measuring low ranges of ozone in ambient air. USEPA Ap -
Gas Monitors
TELEDYNE API T360 CO2 (TAPI)
The Model T360 CO2 analyzer measures Carbon Dioxide by comparing infrared energy absorbed by a sample to that absorbed by a reference gas ac -
Gas Monitors
TELEDYNE API T300 CO Series (TAPI)
The Model T300 measures low ranges of carbon monoxide by comparing infrared energy absorbed by a sample to that absorbed by a reference gas -
Gas Monitors
TELEDYNE API T200 NO/NO2/Nox Series (TAPI)
The Model T200UP provides Trace Level measurements of NOand NO2 using our Model T200U NOx analyzer combined with apatented photolytic conver -
Gas Monitors
TELEDYNE API T101 H2S & T102 TRS Series (TAPI)
The Model T101 H2S analyzer uses the proven UV fluorescence principle to measure hydrogen sulfide at levels commonly required for ambient ai -
Gas Monitors
TELEDYNE API T100 SO2 Series (TAPI)
The Model T100 uses the proven UV fluorescence principle, coupled with a state of the art user interface to provide easy, accurate, and depe -
Gas Monitors
GASMET DX4015 Ambient Multi Gas Analyser
Gasmet™ DX4015 is a portable FTIR gas analyzer for ambient air analysis. The key features of the Gasmet™ DX4015 include a high sensitivi -
Gas Monitors
GASMET GFID Analyser
Gasmet Flame Ionization Detector (GFID) is designed for continuous total hydrocarbon (THC) measurements. GFID analyzer offers a TÜV certifi -
Utilising FTIR technology, the Gasmet CEMS II e Gas analyser can measure up to 50 different gas components simultaneously, including but not
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Gas Monitors
GASMET Continuous Mercury Monitoring System (CMM)
Gasmet Continuous Mercury Monitoring System (CMM) provides a complete automatic system for continuous mercury monitoring, certified TÜV and -
Gas Monitors
GASMET DX4040 FTIR Multi Gas Analyser
The Gasmet DX4040 is a portable FTIR multi-Component gas analyzer ideally suited to numerous applications involving indoor and outdoor air m -
Gas Monitors
GASMET GT5000 Terra FTIR Gas Analyzer
The Gasmet GT5000 Terra FTIR Gas Analyzer is a portable FTIR multi-Component gas analyzer ideally suited to numerous applications involving -
Gas Monitors
GASMET GT6000 Mobilis
Portable stack gas and emission analyzer For stack testing and emissions monitoring, time is the most important resource; GT6000 Mobilis he -
Gas Monitors
Chromatotec AirTOXIC BTX PID
Chromatec AirTOXIC BTX PID is a GC/PID for automatic monitoring of BTEX in air, water and soils. The instrument uses gas chromatography, to -
Gas Monitors
Chromatotec ChromaTHC
CH4 and Non Methane Total Hydro Carbon (NMTHC) Monitoring and analysis of Methane and Non-Methane Hydrocarbons by flame ionisation detection -
Gas Monitors
Chromatotec Chroma S
Chroma S is a fully automatic isothermal gas Chromatograph for the automated online analysis and monitoring of Sulphur Compounds: H2S / COS -
Gas Monitors
PCF Elettronica MOD 529 NMH Analyser
PCF's Model 529 NMH (Non Methane Hydrocarbon) gas chromatographic analyser is intended for measurements of reactive hydrocarbons in ambient -
Gas Monitors
Enotec Ensitu 7000
ENSITU® 7000, a cost-effective O2 transmitter probe Enotec's ENSITU® 7000 O2 transmitter probe is ideal for process control for smal -
Gas Monitors
Enotec Oxitec 5000 GasEx
The OXITEC® 5000 GasEx measures O2 InSitu in gas explosion zones 1/2 for safe and exact process control. Information The O -
Gas Monitors
Enotec Oxitec 5000
OXITEC® 5000 has proven itself as the reference InSitu O2 analyzer and provides reliable process measurements, typically for many -
Gas Monitors
Enotec Oxitec 500E
Reliable extractive wet or dry O2 analyzer for 19" rack installations. Information The OXITEC® 500E extractive analyzer contains the same -
Gas Monitors
Enotec Oxitec Economy
Countless OXITEC® Economy installations worldwide are proof of the system's reliability and durability over many years for InSitu -
Gas Monitors
ENOTEC Comtec 6000 In-Situ Oxygen & COe Analyser
The COMTEC 6000 is an In Situ analyzer for measurement of oxygen and COe (sum of unburned molecules such as carbon monoxide, methane or hydr
All people are living and working in potentially dangerous environments. Whether travelling in a vehicle, out for a walk, or at work in a mine or factory, people are in environments where the air is polluted and potentially harmful to health – gas monitoring is essential in understanding the levels of gas pollution being emitted into the atmosphere from static sources, or present at any given location, and informing decisions on preventative measures to reduce emissions and make these environments safer.
Let’s go over a few gas monitoring basics and delve into what makes them so useful across such a vast array of industries applications.
What Are Gas Monitors?
Gas monitors are devices that continuously check air quality in enclosed and open spaces, extremely useful in industries where dangerous gases may be present in the air. A good example is the mining industry where the presence of methane can make air flammable – using gas analysers protects employees by helping them stay aware of air quality at all times.
Another example is a factory that emits fumes into the atmosphere from their industrial process. These emissions could contain harmful substances such as carbon monoxide or sulfur dioxide, at concentrations which are harmful to humans, plants and animals. To prevent these scenarios, it is essential that gas monitoring devices are operational on-site.
Besides these instances, gas monitors are also often used by first responders, firefighters, maintenance professionals and are a common fixture in the tool-set of utility crews.
What Does a Gas Monitor Detect?
One of the ways in which gas monitors differentiate is according to the types of gases they detect. Some are specifically made for detecting a single gas, whereas others have the ability to detect a multitude.
Gas analysers can detect methane, nitrogen oxides, sulfur oxides, ozone, hydrogen chloride, ammonia, and a variety of other gases. They not only detect whether a particular gas is present in the air but can they also show the percentage or concentration of the gas in the air. This is especially important as there are limits that must be adhered to according to national and state standards as well as site specific environmental licenses.
How Do Gas Monitors Work?
Different gas monitors work in different ways – ones that serve to detect combustible gases will function in a different way to those designed to detect toxic gases.
Combustible Gases
Gas monitors that were designed to detect the presence of combustible gases use catalytic oxidation or infrared sensors. Systems relying on catalytic oxidation have a sensor that is built with a platinum-treated wire coil in the majority of cases.
Coil resistance changes when it reacts to a combustible gas. This occurs because of the temperature change during the oxidation process. This process occurs naturally once the combustible gas comes in contact with the catalytic surface.
On the other hand, infrared sensors are also used for combustible gas detection. The receiver and transmitter alter how they operate when a gas is present in the air. When an IR sensor is used, the gas monitor can identify the gas in the air.
Toxic Gases
Toxic gases are another threat that can be present in the air of an environment. Different technologies are deployed for detecting things like carbon monoxide, sulfur oxides and nitrogen oxides.
Gas Filter Correlation (GFC) can be used for measuring carbon monoxide. This works by comparing infrared energy absorbed by a sample to that absorbed by a reference gas according to the Beer-Lambert law.
UV fluorescence can be used for measuring sulfur dioxide, and chemiluminescence can be used for nitrogen oxides. Newer developments include cavity attenuated phase shift (CAPS) for nitrogen oxides.
Specialized technologies include cavity ring down spectroscopy (CRDS) for trace level detection (parts per trillion), and Fourier Transform Infra-Red (FTIR) for simultaneous real-time measurement of up to 50 gases.
What Are The Advantages Of Gas Monitors?
Gas monitors should be used in all industries with a high chance of certain gases being present in the air. They can be either portable or fixed, depending on the application and requirement.
Being able to measure toxic and combustible gas levels in real-time ensures the safety of employees, the general public, and the environment. It also allows for reporting to authorities and adherence to environmental licenses, which prevents breaches and costly fines.
Which Gas Monitors Can You Find at Thomson Group And Where?
Thomson Group offers gas analysers Australia-wide. You can find our offices in the following regions.
NSW
ACT
QLD
WA
VIC
Furthermore, you can find different gas monitoring systems on our website. Feel free to explore the following:
Indoor Air Quality
Tunnel and Roads Transport
Laboratory and Scientific
Weather and Meteorology
Ambient Monitoring
Stack, Process and CEMS
Reach out to us and one of our professionals will get back to you to help you find the perfect gas monitoring system.
let's find your monitoring solution
If your equipment doesn’t do its job properly, you can’t do yours. Let’s find you a reliable, high quality solution to meet your requirements and make your life easier.
- BROWSE OUR PRODUCTS
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- CONTACT YOUR LOCAL REP
With offices across Australia in NSW, QLD, ACT, VIC and WA we have a local office nearby waiting to help. For our customers in Africa we have an office in Ghana. If you’re in New Zealand or elsewhere overseas, we have dedicated team member ready to help with whatever you need.
- FIND YOUR SOLUTION
Whether you have a license requirement, specification needs or external considerations, our team of experts can guide you to the right solution.