Gas Detection 13


First laser open path H2 related applications


S gas detector for safety


Teledyne Gas and Flame Detection is unveiling its GD1 laser-based gas detector with full SIL2 approval. This ground-breaking development means that the GD1 SIL2 is the market’s fi rst open-path gas detector for hydrogen sulphide (H2S) safety-related applications.


The global importance of SIL (Safety Integrity Level) has grown substantially in the oil, gas, petrochemical and other process industries over the past 10 years. It makes sense, therefore, that devices such as gas detectors demonstrate their suitability and competence in line with the latest SIL2 third-party certifi cation.


The GD1 from Teledyne GFD fi rst entered the market in 2011, with well over 800 units since deployed at oil and gas exploration and production companies throughout the Middle East and the rest of the world. With its new accreditation, the GD1 is now suitable for use in systems with SIL2 requirements. To provide some context, a typical SIL1


ATEX-certifi ed gas detection device/system will come complete with the functional approval according to IEC 60079-29-3 and require regular maintenance. The step from SIL1 to SIL2 requiresthe self-testing of hardware components, reduced maintenance intervals for sensors, strict requirements during development and thoroughly documented software.


Teledyne GFD’s innovative GD1 will prove attractive in SIL2 applications for a number of reasons, not least its unique, tunable laser diode that eliminates any environmental effects from sun, rain or fog. In fact, the GD1 can operate with up to 98% obscuration, boosting overall site safety. This capability is possible because light emitted by the detector travels as a cone from one point to another, rather than as a conventional straight beam. In other words, the beam expands after transmission and is almost a metre in diameter when it reaches the receiver. It can therefore penetrate harsh environments that competitor solutions may fi nd diffi cult.


With its fast and fail-safe laser, the GD1 performs real-time automatic calibration and automatic proof testing, eliminating the need for manual intervention and reducing maintenance costs. Further advantages include low power consumption, very long lifespan and a high sampling/detection rate of 8000 times per second thanks to its ultra-stable optomechanical design and construction. Furthermore, there is no potential of cross interference; the laser scans single absorption lines where there is no interference from other gases.


All of these added-value characteristics mean the GD1 can replace multiple standard detectors to cover the same risk, making it an economic solution that typically demonstrates real cost savings within two years.


More information online: ilmt.co/PL/a1W1 For More Info, email:


email: 59449pr@reply-direct.com The most complete range of industrial gas sensing solutions


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At NET you will fi nd: • NDIR SENSORS – no other manufacturer can offer a list of detected gases as comprehensive as NET when it comes to Non-Dispersive InfraRed technology: CO2 , Methane, hydrocarbons, SF6


and over 30 different refrigerant gases. Our Infrared sensors have reached a safety integrity level of SIL2. No other gas sensor on the market is provided with a higher, certifi ed SIL capability, making our IR series the ideal choice for whoever is designing gas detection systems and SIL-rated functions aiming at the highest levels of functional safety.


• ELECTROCHEMICAL CELLS - manufactured in Japan exclusively for N.E.T. and under our exact specifi cations to comply with performance requirements of EN 45544-2 – our line includes solutions for Carbon Monoxide (CO), Nitric oxide (NO), Nitrogen dioxide (NO2 dioxide (SO2 Ethylene (C2


), Hydrogen sulfi de (H2 ), Hydrogen Peroxide (H2 O2


), Hydrogen chloride (HCl), Chlorine (Cl2) H4


S), Sulfur ,


), Ammonia (NH3 ,


available in 4 different ranges) and the new H2S-HT cell for high temperatures.


• PELLISTORS – our catalytic bead sensor line is the ideal solution to monitor the presence of any combustible gas or vapor in air (or atmospheres containing oxygen) up to the Lower Explosive Limit (LEL).


• CYBER TRANSMITTER BOARDS - preconfi gured and pre- calibrated units that can fi t in any detector with a standard, high-level interface, sparing the user the need of calibrating the detector for the specifi c sensor employed and hiding the complexity of dealing with low level signal acquisition and processing.


• NET HEADS - A full range of ready–to–use detector heads or gas sensor housings, already certifi ed as a component or a complete device to be mounted on a gas detector in any environment – the ideal solution for gas detection system manufacturers who prefer not to invest in designing their own detection head and/or obtaining ATEX/IECEx certifi cation for it. N.E.T. heads can enclose NET full array of detection technologies along with CYBER transmitters.


More information online: ilmt.co/PL/lrmY 58210pr@replydirect.com


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Over 20+ years of existence NET has built the most complete range of solutions for the industrial gas detection market, making it the ideal one-stop shop for instrument OEMs worldwide. Our range of supply is not limited to top-quality sensing elements, but it extends to more integrated solutions which makes life easier for our users in terms of faster time-to-market when developing a product, simpler integration and great savings in their production processes.


At NET we believe than an organization’s overall quality of work and processes is passed on to its products. This is why we maintain the industry’s highest standards of certifi cation, issued by the most renowned notifi ed bodies, including ATEX, IECEx, SIL and ISO9001.


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New, compact, versatile and connected fi ve-gas personal monitor enables users to reliably detect VOCs while improving situational awareness and more.


Industrial Scientifi c has introduced a new PID (Photo- Ionisation Detector) sensor for the Ventis® Pro5 Multi- Gas Monitor, making it the most compact, versatile, and connected fi ve-gas personal monitor available that can reliably detect volatile organic compounds (VOCs).


Whether users are gearing up for confi ned space entries or preparing their emergency response efforts, the Ventis Pro5 with PID sensor allows users to detect VOCs with their personal monitor, reducing the need for additional bulky handheld monitors and supplementary devices.


Additionally, with peer-to-peer, satellite, wi-fi , and cellular connectivity options, the Ventis Pro5 continues to increase situational awareness and decrease emergency response times by sharing real-time location data, man-down alarms, and gas alerts (including VOC exposure), so safety teams immediately know who needs help, what happened, and where they’re located.


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


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