10 GAS DETECTION


Personal, wearable instrument alerts workers to exposure of toxic H2


alarms for life-critical safety scenarios Hydrogen Sulphide (H2


S is commonly found during the drilling and production of crude oil and natural gas, plus in wastewater treatment and utility facilities and sewers. The gas is produced as a result of the microbial breakdown of organic materials in the absence of oxygen and can also be found in textile manufacturing, food processing, hot asphalt paving and mining.


H2 Colourless, fl ammable, poisonous and corrosive, H2 levels quickly deadens olfactory desensitisation. Although the scent of H2


With toxicity similar to carbon monoxide which prevents cellular respiration, monitoring and early detection of H2 The small, lightweight ARA H2


S gas is noticeable by its rotten egg smell but continuous exposure to even low


S is a characteristic, smell is not a dependable indicator of gas presence or for indicating increasing concentrations of it. S could mean the difference between life and death.


operation. The instrument help employees work safely and cost-effi ciently, providing an alert to the presence of unsafe H2 ION Science’s ARA H2


S single gas detector is low maintenance, disposable and offers a continuous run time of two years as standard, whilst an additional hibernation model provides three years’ S levels.


S single gas detector is designed for use as a safety compliance device to be worn throughout daily shifts within a range of industry sectors including oil & gas, chemical, manufacturing, government & defence, water, aerospace and power generation, and across a variety of applications such as site-wide safety, confi ned space entry, plant shutdown processes and fi rst response safety.


User set low and high alarms will alert the wearer and surrounding colleagues to the presence of hazardous H2S gas exposure. When an alarm occurs, the user must exit the area or put-on PPE, in line with company or local health and safety guidelines. The low-maintenance ARA H2


S single gas detector is easy to use and operate with one button operation. The user simply switches the instrument on, and it will operate continuously for two years displaying


real-time readings and instantaneous alarms to protect the workforce within hazardous environments. Hibernation models allow the device to be placed on standby to extend battery life up to three years. An additional benefi t of the ARA H2


S single gas A complete range of NDIR, refrigerant gas sensors


After years of development, N.E.T. Srl, of Italy, can now offer the most complete NDIR gas sensor range on the market for refrigerant gases detection. All these sensors are microprocessor based, fully calibrated and are targeted at different market sectors and applications, both commercial and industrial.


Irnet-Pro, with more than 10 years of being widely used in industrial fi eld applications (from cold rooms to landfi ll gas detection and oil and gas), can reliably detect CO2


It features complete calibration over the temperature range -40°C/+60°C and SIL2 certifi cation.


Iref-Pro has been specifi cally developed for a more accurate detection of low concentrations of HFC and HFO gases. It features a powerful black body light source that enables ppm detection of a very extended list of gases and it is also fully calibrated for the target gas and SIL2 certifi ed.


Iref-Lite offers a lower cost alternative to the ‘Pro’ version, for more commercial applications: it is available for detection of A2L refrigerants (R32, R1234yf, R1234ze) in the fl amable range and for gases used in VRF applications (R410a, R134a) up to 1%vol. This sensor is the fi rst one to feature the innovative threshold output, alongside the usual voltage and digital outputs.


The Remore module is the newest addition to the NET range. This very cost effective device has the same features and gas list as the Iref-Lite but it is meant to be integrated directly on chillers and other refrigeration equipment instead of a gas detector. Every aspect of the hardware can be customised based on the customer’s criteria, making it an extremely fl exible instrument.


More information online: ilmt.co/PL/emvw For More Info, email:


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from ppm level to 100%vol ranges, or hydrocarbons and R32 based gases (R454, R452) in the lower fl amable limit range.


detector is its lifetime remaining countdown feature that helps users to plan for future projects and site shutdowns.


ARA’s self-test feature tests the audio, visual and vibrating alarms, giving users confi dence that they are in safe hands. Easy to perform in a single button press and with user-confi gurable reminders, the self-test reassures users that their device is in safe working condition.


The ARA H2S single gas detectors can be connected to PC software via the ARA IR link, to set bump test and calibration reminders as well as low / high user adjustable alarms. The ARA PC allows users to download 30 recent event logs and confi gure user settings.


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In a strategic move to further expand its portfolio of high-performance gas detection instrumentation, ION Science has launched a range of cost-effective, low maintenance, disposable ARA Single Gas Detectors for compliance monitoring and worker safety. The personal, wearable instruments enable workers to monitor their exposure to toxic gases as well as oxygen enrichment and depletion, alerting them when safe levels are exceeded. Ideal for petrochemical site plant workers and on-site contractors, the small, lightweight ARA single gas detector comprises six models including four gas types: hydrogen sulphide, oxygen, carbon monoxide and sulphur dioxide.


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For More Info, email: email:


For More Info, email: email:


If you wish to submit an article for possible inclusion in International Environmental Technology


or on Envirotech-online, please contact Helen Jones.


helen@envirotechpubs.com are not reliable indicators, wearable gas sensors are necessary for early detection. ION Science’s new ARA H2 S gas providing instantaneous


S) is a fast-acting poison that can desensitise and render the body unconscious in no time. As the human senses S personal single gas


monitor offers 24 months’ continuous operation and robust design for use in harsh environments. It enables workers in a wide range of industrial process applications to monitor their exposure to the toxic gas and provide an alert when safe levels are exceeded.


IET JANUARY / FEBRUARY 2021 WWW.ENVIROTECH-ONLINE.COM


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