12 Gas Detection
The Simple Solution to Carbon Dioxide Detection
New Gas Monitors with HART
MSA’s (Germany) state-of-the-art Permanent Gas Detection System ULTIMA X now features HART [Highway Addressable Remote Transducer] digital protocol, a bi-directional industrial field communication protocol used to communicate between intelligent field instruments and host systems. ULTIMA XL/XT Gas Monitors are unique worldwide as they offer
the flexibility to use HART protocol or the very simple and effective local calibration. HART features two simultaneous communication channels: the 4-20mA analogue signal and a digital signal, enabling the user to perform convenient set-up, calibration and diagnostics from any point along the 4-20mA line. With the ULTIMA XL/XT Gas Monitors the user has multiple calibration
The Euro-Gas range of gas sensors has now been extended with the introduction of the exciting C20 miniature Carbon Dioxide sensor that delivers speed, low power consumption and long-term stability. The C20 sensor is a fast response, low power miniature infrared sensor, which uses exciting and unique solid state infrared technology. This high performance Carbon Dioxide sensor is ideal for an extensive range of applications including: indoor air quality & ventilation; cellar & gas stores; shipping; car park monitoring; mining; greenhouses; diving equipment; automotive and more!The C20 sensor is easy to use. With two readings per second and a T90time of less than five seconds, the sensor is fast and can be used to measure rapid changes in gas concentrations. The Carbon Dioxide measured output is temperature compensated andlinearised. Leading edge LED technology allows the sensor to run at low power –less than 100mW running at full speed –which is particularly ideal for battery and portable applications. No signal processing is required –simply plug it in, power it up and read the
data.To assist with development, Euro-Gas also offers a development kit consisting of the C20 sensor and driver electronics mounted on a support PCB with LCD display. The Euro-Gas range of gas sensors offers unique features and potential advances for end product performance, ensuring cost effective, high quality solutions forgas detection OEMs. Euro-Gas is also a worldwide specialist supplier of low cost test and calibration gas mixtures in non-refillable and refillable cylinders. For further information, please kindly contact NatashaAmnerat Euro-Gas Management Services Ltd.
Reader Reply Card no 43 New Intrinsically Safe 6 Gas Detector
Sensor/Transmitter For PPM Hydrocarbons And Solvents
Solid-State MOS Sensor Three Alarm LEDs NEMA 4X, NEMA 7 and IP66 Rated Enclosure
24 VDC, 4-20 mA Liquid Crystal Display Non-Intrusive Calibration Approved for Class I, Division 1, Groups B, C, & D Optional Alarm Relay Board
Examples of Typical Calibrations: Toluene, 0-500 ppm
Acetone, 0-2000 ppm
Isopropanol, 0-100 ppm Benzene, 0-50 ppm Methanol, 0-500 ppm Ethylene, 0-200 ppm etc.
In general, the EX-5155 Sensor/Transmitter can be calibrated for Hydrocarbons, Halogenated Hydrocarbons, Jet Fuels, Refrigerants, Organic Solvents, Esters, Ethers, Alcohols, Ketones, and other compounds and mixtures.
www.enmet.com
info@enmet.com Phone: 734-761-1270 Fax: 734-761-3220 Ann Arbor, Michigan
The IR700 is e2v’s (UK) new Infrared gas sensing head for the detection of hydrocarbon gases and is designed as a direct replacement for EX certified pellistor heads. The incorporated smart electronics can allow the direct replacement of pellistor heads in an already installed gas detection systems, with the minimal amount of effort. In certain difficult applications pellistor heads can be troublesome and unstable, the IR700 enables the replacement of the pellistor sensing heads with a more reliable IR sensor, thus improving the system to have a lower cost of ownership with long sensor life. All this is available without the need to reinvest in a new electronic system.
The IR700 sensor head can detect a wide range of hydrocarbon gases and vapours to LEL levels. Full temperature compensation is included and a pre-programmed algorithm to give linear outputs for Methane, Propane and Ethylene. These options can be addressed externally and reconfigured according to your requirements. Certified ATEX II2GD EEx d IIC T5 and UL 1203 standard Class 1, Div 1 + 2, Groups A, B, C, D. (Data Sheet available on request).
Reader Reply Card no 47 October/November 2008 AET Reader Reply Card no 48
GfG’s (USA) new intrinsically safe G460 is a rugged, compact instrument for simultaneous detection of up to 6 gases. Installed sensor options
include infrared (NDIR) for CO2 and PID for VOC measurements. The G460 offers completely automatic calibration, one-button operation, top mounted display and interchangeable battery packs. GfG’s concussion proof boot, along with the highly dust and water resistant housing protect the instrument in the harshest environments. Datalogging and event logging are standard.
GfG Instrumentation develops and manufactures a full line of portable gas detectors, fixed systems and respiratory airline monitors to provide protection from combustible gases and vapors, oxygen hazards
and toxic gases. GfG offers reliable protection that can be customized to meet your specific gas detection needs. EX-5155 New Infrared Gas Sensing Head Reader Reply Card no 46
options: the handheld HART communicator, a controller or laptop which communicates via a dedicated HART Software and local internal LEDs and push- buttons. The versatile units are well-suited for both indoor and outdoor installations. ULTIMA XL is explosion-proof with a stainless steel enclosure, while ULTIMA XT uses a general purpose, water and corrosion resistant polycarbonate housing. The ULTIMA XL/XT Series offers an affordable choice in continuous gas detection and monitoring while retaining key features and sensors of MSA’s ULTIMA X Series. Plants using ULTIMA XL/XT Gas Monitors benefit from significant savings. The cost-effective, non-display units use well proven catalytic, electrochemical and infrared technologies for detection of combustible and toxic gases and for oxygen deficiency. The interchangeable smart sensors can be changed under power without declassifying a hazardous area. ULTIMA XL/XT Gas Monitors are well-suited solutions and management asset for multiple gas detection coverage in oil and gas applications in chemical and petrochemical facilities, steel mills, water and wastewater treatment plants and general industry.
Reader Reply Card no 44 Alphasense Low Power, High Poison Resistant Pellistors
All Pellistors employ catalytic combustion to measure combustible gases or vapours in air up to the Lower Explosive Limit (LEL) of the gas and Alphasenses' range of Pellistors are no exception. However, once again, Alphasense (UK) have succeeded in providing a high quality, innovative solution to an old problem. The Alphasense series of Pellistors are extremely resistant to poisoning and have a very low power requirement of only 190mW @ 3V. Now available in 3 sizes: CH-F2 for fixed installations; CH-A3 for drop-in replacements to existing product with improved stability and poison resistance; CH-D3 - our unique miniature size - Height 11.5mm, Ø15mm, complementing the existing and fast growing Alphasense Family of D (miniature) series sensors. All are housed in certified flameproof chambers. Alphasense Pellistors include a matched pair of sensing and compensator pellistor beads, sealed in a 316 stainless steel housing with stainless steel flame arrestor sinter. This is metallurgically bonded to the housing for superior strength and integrity.
Reader Reply Card no 45
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