36 Sensors Long-Life Catalytic Type Combustible Gas Sensors


Figaro Engineering Inc. (Japan) is pleased to announce its latest offering—the TGS68series of catalytic type gas sensors and related products. Figaro offers two gas sensor models—TGS6810 for methane/ LP gas detection, and TGS6812 for methane/ LP gas/ H2


calibrated module, FCM6812. Features: Fail safe design, Linear output, Sensitive to combustible gases, Small sensitivity to alcohol, High durability to silicone vapor, SO2


gas detection, and one pre- , Compact


and Low cost, long life (Expected life: 10 years), Meets RoHS requirements. Applications: Residential LNG and LPG alarms, Detectors for LNG and LPG, Hydrogen and combustible gas leak detectors and fuel cell applications.


The most notable feature of these sensors is “Fail safe” design concept. For conventional catalytic type sensors, sensor output in gas tends to decrease by time in one direction after deterioration of catalyst. As a result, there is a risk without alarming in case of gas leakage after deterioration of catalyst. Figaro catalytic type sensors are designed so that sensor output in gas tends to increase in the long run by changing material and bead size between detector element and compensator element. In addition, by immersing the catalyst deep inside sensing element, the sensor is more durable to silicone vapours and corrosive gases such as SO2


its sensor cap, its cross sensitivity to alcohol is much smaller than traditional catalytic type sensors.


Though the sensors are not suitable for gas analysers or measurement purposes where high accuracy is required, due to the instability of the air level or Vout in air, the sensors are ideal for stationary gas detectors or monitoring system for combustible gases.


As a related product, Figaro has a pre-calibrated module FCM6812 with hydrogen sensor TGS6812 which includes the following features: Linear analog output proportional to gas concentration, Maintenance free, Self diagnosis, Compact and low cost.


The module has been used for hydrogen leak detection from Stationary type fuel cell in Asia, North America US and European countries. 29224pr@reply-direct.com


For More Info, email: email:


For More Info, email: email:


New Gas Detection LEDs with Remarkable Features


Alfa Photonics (Latvia) represents a broad range of Mid Infrared LEDs, photodiodes and related electronics for spectral range of 1600...5000nm – the range of existance of strong absorption bands of CH4


, H2 O, CO2 , CO, C2 H2 , C2 H4 , CH3 Cl , NH3 , NO2 , SO2 and many others gases and liquids. Their products pose remarkable


features and advantages such as compactness (LED chip – 0.35x0.35 mm), rapid response time (10ns), long lifetime ( up to 80K hours), multicomponent analysis, low power consumption, low cost, etc. They offer both standard and flip chip LED types packaged in different housings (TO-18, TO-5, SMD, etc) with or without TEC.


For More Info, email: email:


For More Info, email: email:


21060pr@reply-direct.com A New-Look Sensor Website


Alphasense (UK) are pleased to announce that our website has been completely redesigned and is now available to view on-line immediately.The website contains two sections, Alphasense Safety and the newly introduced Alphasense Air (Air Quality Monitoring).


������������������ ����������������


Alphasense Safety comprises electrochemical sensors which detect Oxygen and Toxic gases, infrared sensors for Carbon Dioxide and Hydrocarbons, Photo Ionisation Detectors (PIDs) for the detection of Volatile Organic Compounds (VOCs) and fully certified Pellistors for combustible gas detection.


Alphasense AIR comprises affordable wireless air quality networking combining Alphasense low cost and high sensitivity sensors linked with electronics, GPS, GSM, physical sensors and advanced data algorithms. Alphasense designs and manufactures sensors for inorganic gases and VOCs, where parts per billion (ppb) detection are required, and optical aerosol/particulate monitors for PM 2.5 through PM10.0.


With a broad portfolio of products and support for detecting all of the common and many of the exotic gases, Alphasense has established a reputation as the source for a wide range of gas sensor technologies for both portable and fixed site air quality monitors for urban air, indoor air quality and odour detection.


�������������� �������������������


������������������������� �������������������������������


For More Info, email: email:


For More Info, email: email:


������������������������������������������������������� ������������������������������������������������������ ������������������������������������������������������������ ���������������������������������������������������� ����������������������������������������������������� �������������������������������������������������������� �������������������������������������������������������� �����������������������������������������


���������������������������������


The website will have a new look and downloadable technical datasheets and application notes; these now contain more comprehensive technical information and data, a Stop Press section containing the latest press releases, Information Bulletins - downloadable documents that keep you informed of company and product news at Alphasense and current vacancies and a news section which allows users to quickly see what is new to the website since the last update.


Alphasense plan to update the website regularly and are already planning to include downloadable product reviews on each sensor, application notes and links to other related sites. They have avoided using imported images and photographs to ensure downloading each screen when on-line takes the minimum of time for optimum performance. Each new page is clearly set out and designed to minimise the amount of scrolling down required; Alphasense believe customers would prefer to click to another, easy to read screen, rather than repeatedly scrolling down to get to the information of interest.


1907ad@reply-direct.com IET March / April 2014 www.envirotech-online.com


For More Info, email: email:


For More Info, email: email:


28707pr@reply-direct.com


than conventional type sensors. Furthermore, as the sensor possesses an adsorbent inside


Page 1  |  Page 2  |  Page 3  |  Page 4  |  Page 5  |  Page 6  |  Page 7  |  Page 8  |  Page 9  |  Page 10  |  Page 11  |  Page 12  |  Page 13  |  Page 14  |  Page 15  |  Page 16  |  Page 17  |  Page 18  |  Page 19  |  Page 20  |  Page 21  |  Page 22  |  Page 23  |  Page 24  |  Page 25  |  Page 26  |  Page 27  |  Page 28  |  Page 29  |  Page 30  |  Page 31  |  Page 32  |  Page 33  |  Page 34  |  Page 35  |  Page 36  |  Page 37  |  Page 38  |  Page 39  |  Page 40  |  Page 41  |  Page 42  |  Page 43  |  Page 44  |  Page 45  |  Page 46  |  Page 47  |  Page 48  |  Page 49  |  Page 50  |  Page 51  |  Page 52  |  Page 53  |  Page 54  |  Page 55  |  Page 56  |  Page 57  |  Page 58  |  Page 59  |  Page 60  |  Page 61  |  Page 62  |  Page 63  |  Page 64  |  Page 65  |  Page 66  |  Page 67  |  Page 68  |  Page 69  |  Page 70  |  Page 71  |  Page 72  |  Page 73  |  Page 74  |  Page 75  |  Page 76