14 GAS DETECTION


Protecting Health by Smart Sensing Solutions MEMS pellistors for Flammable gases


✓ High Reliable MEMS Sensor ✓ Low power (continuous operation typ. 110mW) ✓ Exceptional poison resistance to HMDS and H2S ✓ Miniature package MP7227 (14.4 x 6.7mm) ✓ Compatible packaging available for existing market sensors 4 series – VQ548MP2


✓ Extreme resistance to mechanical shock ✓ Enabling stability performance, for very low power applications pulsed mode operation (10 to 20mW)


✓ Low orientation effect ✓ ATEX, IECEx certified for ia


# MP7227-DA


Businesses can evidence carbon neutrality and improved employee welfare thanks to the fast and highly accurate PID


Whilst China and other governments around the world commit to a green economy by 2030, companies are starting to turn to employee health and safety monitoring to learn and evidence improvements in carbon emissions.


# VQ548MP2-DA


Thanks to Cub’s patented photoionisation detection (PID) of volatile organic compounds (VOCs), UK based gas detection manufacturing experts Ion Science, is helping employers significantly reduce the daily exposure risks faced by


Interested and want to know more… pls visit www.sgxsensortech.com or e-mail info@sgxsensortech.com


occupational hygienists and technicians operating in the chemical or petrochemical industries.


The class-leading personal and portable detection and exposure instrument is extremely fast, lightweight, and unobtrusive. It accurately measures personal VOC exposure in real-time and features intuitive audio, visual and vibration personal alarms, which notify the user when safe workplace exposure levels are about to be exceeded, all within 13 seconds.


ATEX and IECEx certified as standard, the device stores and handles data quickly and efficiently.


Cub has an extremely wide gas detection range of 0 to 5,000ppm and has unrivalled sensitivity down to ppb levels. It can measure up to 480 selectable compounds and features anti-contamination and humidity resistance for extended field operation. 12-hour battery life also ensures that the device can operate for the full duration of a worker’s shift.


A large LCD screen provides occupational hygienists and technicians with clear and accurate readings that can be understood whatever the difficult climatic conditions being faced. Cub is also easy to service and features a two-year warranty when the device is registered online.


The specialist technology employed in the Cub is now being requested by other detection manufacturers around the world, which is a huge complement to the outstanding quality, accuracy and trust in the PID sensor manufactured specifically by Ion Science.


Safe operations in the energy sector are now more critical than ever before. Companies must meet ever-increasing global demand and ensure costs are low, while considering the increasing environmental factors. This all means increased pressures and demands on staff working times, particularly occupational hygienists and technicians.


Across global downstream gas operations, Ion Science products are designed and proven to help keep employees safe and ensure that companies meet the legislative requirements set out by the Control of Substances Hazardous to Health (COSHH) regulations.


Regulation 7 of the COSHH Regulations 19991,2 lays down the requirements for using maximum exposure limits (MELs) and occupational exposure standards (OESs) for achieving adequate control of worker exposure. ION Science’s Cub PID ensures that regulation is adhered to. However, Cub is recommended to be used alongside a single gas detector (ARA) toxic alarm and exposure alarm for more significant employee safety coverage.


More information online: ilmt.co/PL/Q6xR For More Info, email:


Next generation of oxygen gas sensors


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Pyroscience’s optical FDO2 oxygen sensor is a technologically advanced alternative to commonly used electro-galvanic oxygen sensors.


Although the form factor is similar to conventional electro-galvanic oxygen sensors the sensor operates in a completely different way with an optical principle. The optical measurement is based on a proprietary luminescent sensor from


PyroScience, which is sensitive to oxygen partial pressure. This principle is very reliable, shows virtually no interferences to other gases and works completely without the use of toxic lead. Additionally, FDO2’s highly hydrophobic sensing surface ensures that water droplets do not affect the measurement.


The FDO2 is a factory calibrated, robust, accurate, fast response, long lasting and almost maintenance free oxygen sensor (made in Germany). This user- friendly sensor is used for demanding gas sensing applications, such as oxygen gas monitoring in glove boxes, portable equipment, exhaust gases and more. A mounting thread and a robust locking connector allow easy installation.


The FDO2 usually lasts for 5 years or longer, based on a 2 second sample interval and 60% operational time, unlike electro-galvanic oxygen sensors with their very limited shelf and operation life. Optics and electronics are hermetically sealed from the measured gas and the sensing surface is highly hydrophobic, so water droplets do not disturb the measurement. This sensor has a fast response time (t63 <2 sec), with low level of drift (typically < 1% O2 measuring range (0 -100% O2


/year at 21% O2 , up to 200% O2 ), a wide on request) and low energy


consumption (3.3V, typically 8mA). It also offers linearity over the full oxygen range and sensor lifetime.


The flow-through cell FDO2-FTC enables simple integration in a variety of gas- streams. The FDO2’s USB cable comes together with versatile evaluation software and this unit also has full RoHS compliancy (lead/Pb free).


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


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Methane detection made easy with extra long distance detector A new generation of methane selective portable detectors has


emerged recently, offering extra-long distance detection capacities. The Gazoscan, manufactured by Gazomat is an instrument capable of detecting methane up to 100m. This opens up new perspectives in the field of natural gas pipeline network monitoring, as illustrated in the following example.


This case relates to a conventional gas distribution network inspection conducted from a mobile leak survey vehicle. The scheduled route includes a bridge over a river where the pipeline crosses underground. Running at a distance of approximately 50m from the bridge, that part of the network is listed as non-accessible and non-surveyable. Driving over the bridge, the survey technician decides to test the laser-based Gazoscan detector. Standing right at the centre of the bridge, he points the laser beam towards the water surface and scans the area between both river banks. As it reaches the middle of the river, the Gazoscan’s alarm sets off powerfully. On the device screen, the reading displayed in ppm/m corresponds to a methane concentration almost 50 times above the levels usually encountered by the operator.


To make sure, the somewhat taken aback technician shoots again with the Gazoscan. Readings however do remain at the same high level. The gas leak detected IS really significant, and yet there are no visible signs in the area - no burnt grass, no dead fish, no gas bubbling up to the water surface. Looking carefully, he identifies gas pipeline markers indicating the presence of a transmission pipeline. Alerted, the services in charge of the transmission network and of the distribution network must urgently determine the leak source. As a first step, the service pressure in the distribution pipeline section is modified and measures taken using the Gazoscan from the bridge. The results quickly show the leak originates from the distribution network. Major repair works are scheduled, comprised of (trenchless) directional drilling over a 2 km distance and the replacement of the leaky pipeline section running under the river bed.


As to the technician involved, he freely admits he will never forget the experience that showed him all the benefits and potential of this type of detectors. As he says, ‘the devices are so easy to use and so quick to start up. Wherever pipelines or installations are hard to access, they simply make field inspections easier and more exhaustive, while allowing to keep safe distances’.


Atex and IECEx certified, the methane detector offers an extended range of application in a variety of industries. More information online: ilmt.co/PL/BdZK


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