Gas Detection 51
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Alphasense: Releases its Latest Offering, an Industry Leading A-Series PID Sensor
With a PID (Photo Ionisation Detector) the sample gas is ex- posed to deep ultraviolet light from a lamp. The emitted light ionises targeted gases in the sample so they can be detected by the gas detector and reported as a concentration (ppb or ppm).
The Alphasense (UK) PID can be installed in portable and stationary gas monitors that accept either Alphasense Ltd CH-A3 or other manufactures compatible pellistor cells. Thus providing complete PID capability in a package that has
the same dimensional and electrical profile as Pellistors (providing the electronics input circuit is designed to take the sensor’s output range). This opens up an incredible variety of environmental and safety applications in industrial, commercial and residential markets.
The Alphasense PID sensor is offered in two models. They are virtually insensitive to humidity changes, providing unparalleled performance in a variety of applications:
• PID-A1 has a linear dynamic range of 50-ppb to 6,000-ppm (Isobutylene). • PID-AH has a linear dynamic range of 5-ppb to 100-ppm (Isobutylene). • The Sensors include a Detector with 10.6eV Lamp, Lamp Driver, Amplifier Circuitry, • Removable and Replaceable Electrode Stack & Particulate Filter.
Arthur W. Burnley – Sales and Marketing Director stated: “Alphasense commitment is always to provide the best product it can in the market for its customers. We constantly improve, develop and introduce new products and the recently released PID range is an excellent example of this. Our policy is to introduce ‘best by design’ sensors, not ‘me too’ products. These PID sensors have already been fully tested and adopted by a number of OEM’s and are beginning to replace our competitors products. A major benefit is the much lower cost for replacement lamps and the ability to replace the electrode stack at a nominal cost.
Alphasense maintains its commitment to customers by continuing to supply the highest quality sensors with on-time delivery every time allied to exemplary support.”
GasPoint Reader Reply Card no 134 Calibration and Bump Testing
The most cost effective way to manage the calibration and bump testing of BW’s (UK) portable gas detectors is through the MicroDock II automated test and calibration system. Fully portable and easily expandable, the MicroDock II requires no computer interface and provides simultaneous management of up to 10 modules. Simple, accurate record keeping and management
of a fleet of safety gas detectors provides quick and easy compliance. The MicroDock II features one base station with one AC outlet supports up to ten modules to suit your application. Multiple MicroDock II systems can be connected via a local area network (LAN). Calibration records are stored and updated in the MicroDock II, as well as in datalogging instruments. The MicroDock II system is compatible with the: GasAlertClip Extreme (two and three year), GasAlert Extreme, GasAlertMicroClip, GasAlertMicro, GasAlertMicro 5 Series, GasAlertMax XT, and the GasAlertQuattro.
The MicroDock II provides the flexibility to manage your single and multi-gas detectors with one system.
Reader Reply Card no 135 GasScreen 160
Control Unit for 16 channels 4-20mA and/or 256s points RS485
Stand alone single gas detector
Fixed Gas Detection Systems
For continuous monitoring of combustible, toxic gases and oxygen. Complete range of sensors / transmitters ATEX approved DNV and RINA marked products for marine applications.
Explorer Box 2ch
2 channels wall mount control unit with touch display
Electrochemical Sensor Installed in 10 Million Homes Worldwide
At the heart of more than 10 million residential carbon monoxide de- tectors installed in homes throughout the world is City Technology’s (UK) ECOSURE elec trochemical sensor, giving the occupants peace of mind and security from the lethal threat posed by the silent escape of invisible carbon monoxide gas from faulty or badly adjusted heating devices. ECOSURE is the sensor of choice for the great majority of CO detector manufacturers because of its performance, stability, reliability and
extended operational life. It is also increasingly used in multi-sensor fire detectors to improve their detection reliability and reduce their false alarm rates.
ECOSURE is a two-wire electrochemical sensor with inbuilt filtering that protects it from poisons, interfering gases and dust, minimising the possibility of false alarms. Its inherent stability means that instrument manufacturers do not have to provide complex compensation circuitry. The sensors are manufactured in a highly automated manufacturing facility and comprehensively tested at each intermediate stage during the production process. As a result, the standard deviation in the output of individual sensors is extremely small, again enabling instrument manufacturers to simplify their instrument designs, thereby reducing time to market and improving manufacturability.
In addition to its stability and false alarm immunity, the sensor is extremely fast to respond to the presence of carbon monoxide, reaching T90 in less than 20 seconds. It is mechanically robust, can be installed in any orientation without affecting performance and it operates from -10 to +50°C with continuous relative humidity ranging from 15 to 90%.
Reader Reply Card no 133
Eexd Gas Detectors
For flammable gases (%LEL), Oxygen (% O2), and toxic gases (ppm).
Via Pietro Chiesa, 25 r. - 16149 Genova
Tel. (+39) 010-469.56.61 r.a. • Fax (+39) 010.642.42.05 email:
info@recomind.com • web:
www.recomindustriale.com
Reader Reply Card no 136
May/June 2010
IET
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