28 Gas Detection - Focus on Sensor Technology Ultra-compact carbon monoxide sensor


Figaro Engineering Inc. is pleased to introduce the TGS5141 ultra-compact electrochemical-type carbon monoxide sensor. This sensor offers high sensitivity and selectivity to CO with linear sensor output. TGS5141 is a UL recognised component in accordance with the requirements of UL2034, and able to satisfy the requirements of performance standards such as UL2034, EN50291, and EN54-31.


With its ultra-compact size of 13.9 mm in diameter and 5.0 mm in thickness, this sensor is the ideal choice for size-oriented applications such as portable CO detectors, residential CO


detectors, multi-sensor fi re detectors, and various IoT applications. Carbon monoxide is one of the poisonous gas elements of air pollution, and can be typically found in wintertime, when heating systems are often used with minimal ventilation in a building. Indoor Air Quality (IAQ) monitors with this affordable, long life and reliable CO sensor inside will ensure comfort and safety.


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A sensor to measure arsine gas in the ppb range


With the AsH3/C-1 and the AsH3/M-1 MEMBRAPOR presents two extremely highly sensitive sensors, which allow the highly toxic gas arsine to be measured in the ppb range.


Despite its past as a component in chemical weapons, Arsine is now a common technical product in the semiconductor industry. Arsine is used as a doping gas on a large scale and in signifi cant quantities in the context of thermal doping of silicon in the diffusion process and in ion implantation. To ensure safety, all processes need to be controlled and monitored with electrochemical Arsine sensors.


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WhyCatalyticSensors?


Most combus�ble gas detectors are equipped with either a cataly�c bead sensor (pellistor) or an infrared sensor. Both technologies have their advantages; Pallisters are rela�vely inexpensive and sensi�ve to a wide range of combus�ble gases, infrared sensors are extremely resistant to environmental contaminants and mechanically robust but cannot be used to detect certain combus�ble gases such as hydrogen. The choice of technology used has o�en depended on the trade-off between cost and reliability.


SGX Sensortech's MPEL sensor provides instrument manufacturers and users with a third op�on that eliminates the need for compromise. The combus�ble gas sensor uses well-known cataly�c bead chemistry supported by a micro-electromechanical system (MEMS) built from silicon and provides revolu�onary levels of detec�on reliability. Some of the key benefits are:


� Reduc�on in opera�ng power – the MPEL when operated constantly uses half the power of a standard pellistor, instantly doubling instrument run �me. In addi�on, the MPEL can also be operated in pulsed mode which further reduces the power consump�on giving opportuni�es for longer run �mes in portables, longer cable runs or more sensor points per cable run. � Superior poison and inhibi�on resistance – the sensor is fi�ed with novel filtra�on technology to remove contaminants which occur in typical industrial environments. Its resistance to common poisons such as silicone vapours or inhibitors such as hydrogen sulphide is far superior to exis�ng pellistor technology and will result in a significant increase in sensor life�me. � Mechanical robustness - the MPEL uses a unique solid-state design which means that it is more resistant to mechanical shocks and vibra�on. With an MPEL fi�ed, an instrument will no longer need to be calibrated, or worse, sent back for sensor replacement when it is accidentally dropped. � Affordable cost – since the MPEL is manufactured on automated wafer fab and deposi�on equipment, it is available at a compe��ve price and considerably well below that of infra-red technology.


Whether you are looking to design smaller instruments, increase opera�ng run �me or reduce overall cost of ownership, the next genera�on MPEL technology can provide the answer. It is available in a range of industry standard packages, provided with full safety cer�fica�on and can be used as a drop in replacement for your exis�ng sensor with li�le or no circuitry modifica�on.


World leading Catalytic Sensors


Flammable gases detection from 0 to LEL (Lower Explosion Limit)


Typical pellistor pair or series 4 housing


MEMS pellistor with pulse mode operation for very low power consumption


More than 50 different sensor variations available


Short lead time IET MARCH / APRIL 2022


Statistics from the US’ Department of Transportation reveal that 21,539 hazardous material incidents occurred within 2021 in the United States alone. These incidences can have a detrimental effect on the environment and public health, in the long and short term. With increasing scrutiny on companies and individuals to meet stricter environmental targets, mitigating and preventing hazardous material incidents is a key step to creating a cleaner, greener future.


To protect both the environment and public health, it is fi rst important to identify what hazardous materials are and understand how they are categorised. Following this, examining what processes are currently in place, and how these can be improved to prevent hazardous materials from endangering people, entering waterways, and contaminating soil, is the crucial step to reducing the impact of hazardous material spills.


Health and safety professionals are the key to understanding, maintaining, and reducing the risks associated. To reduce the rate of incidents, education and awareness of hazardous materials and their impact are critical tools that should be added to any health and safety professional’s toolkit.


ION Science has partnered with Health & Safety Matters (HSM) to deliver a free webinar on this topic. The webinar will cover the importance of understanding the dangers associated with hazardous material spillages, and the consequences on public health, wildlife, and the environment.


This webinar will focus on how HAZMAT spills can occur, current HAZMAT processes, the health effects and environmental impact spills can cause and how PID technology can identify and track spills and contamination – followed by a live Q&A session.


Register for free and join this webinar with ION Science and HSM on the 20th April 2022 at 10.30am GMT. Find out more about how you can help prevent hazardous spills and identify, detect and prevent hazardous material spills from impacting the public and the environment.


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Spills and


soil contamination webinar set for 20th April


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