Cerex Introduces the New AirSentry FTIR Open Path Analyzer

Cerex Monitoring Solutions is pleased to announce the release of the third generation model AirSentry FTIR multi-gas open path FTIR analyzer. The decision was made to fully redesign the analyzer to take full advantage of advances in hardware and software technology. The third generation design represents a full reconfiguration of the instrument. Goals were to reduce initial and operating costs and improve performance while retaining the valuable features and twenty year service life of the previous model AirSentry FTIR.

Among the Improvements in the New AirSentry FTIR:

  1. Improved AirSentry FTIR Interferometer:
    Retaining the field proven corner cube design, the AirSentry FTIR interferometer has been miniaturized. It now utilizes a solid state diode laser which operates at lower temperature and improves reliability and power consumption.
  2. Improved Cryocooler Life-Cycle – 20,000 Hour MTTF
    Cryocooling the AirSentry FTIR MCT detector allows the wide band sensitivity performance of a liquid nitrogen cooled detector without the expenses and demands associated with handling liquid nitrogen or maintaining auto-fill hardware. The new model’s cryocooler has a 20,000 hour MTTF, double that of the previous generation. It also carries a 14 month warranty. The new cryocooler reduces regular maintenance costs by half without compromising performance.
  3. Integrated Computer as Standard:
    Previous models used an external computer for gas analysis and data acquisition. The new model utilizes a fully integrated computer. Remote access to the operating system, configuration settings and data output are simplified.
  4. Instrument Air Conditioner as Standard:
    Standard thermo-electric air conditioning improves the ambient temperature operating range of the new AirSentry FTIR as well as the longevity of the electronics. Previous models were restricted to an upper temperature limit of 35°C. The new design will operate in ambient temperatures up to 55°C.
  5. Reduced Enclosure Size:
    To improve portability and reduce initial cost the AirSentry FTIR now uses a NEMA enclosure. It is smaller, lighter and more portable than the previous machined enclosure. Weight and cost reductions allow the installation of instrument air conditioning without increasing weight and cost over the previous model. The new model weighs 135lbs with air conditioning. The previous model weighed 150lbs without air conditioning.
  6. Hazardous Location Installation:
    The new model AirSentry FTIR is available with integrated z-purge and classified area cooling to allow operation in Class 1, Division 2, Groups A-D and ATEX hazardous zone operation.
  7. Streamlined, Feature Rich CMS Operating Software:
    CMS software has been streamlined to improve computational speed in gas analysis routines. The graphical user interface has also been improved to simplify configuration tasks. The latest version includes many upgrades:

    1. One Button Configuration Recovery

    2. Alarm Configuration Inherited From Compound Library Gases

    3. User Selectable Data File Format

    4. Serial and Ethernet Modbus Support

  8. Data Processor Software Improvements:
    Data Processor has been significantly expanded to include several powerful features.

    1. Synthetic Background Generator

    2. Insitu Reference File Generator

    3. Unknown Compound Analysis

    4. Spectrum Visualizer

With second generation AirSentry FTIR analyzers operating in the field after twenty years, many features that facilitate long term value were retained in the new model.

Features Retained in the New AirSentry FTIR:

  1. Non-Hygroscopic Optics:
    Offer the best available resistance to corrosion and are immune to water vapor damage.
  2. Quick Mount Telescope:
    The telescope is removable with one screw for fast setup and breakdown. For temporary installations the analyzer can be set up and collecting data in minutes.
  3. Conversion from Open Path to Point Analyzer:
    The telescope may be removed and a sample cell attached to allow point or process monitoring.
  4. Full Compliance with USEPA TO-16 Regulatory Open Path FTIR Air Monitoring:
    USEPA TO-16 Compendium of Methods for the Determination of Toxic Organic Compounds in Ambient Air
  5. Direct Integration with Meteorological Sensors:
    The AirSentry FTIR is still available for order with hardware necessary for integrated meteorological and external analyzer data acquisition.
  6. Open Format Gas Compound Library:
    CMS software retains simplicity in adding or removing gas compounds from the detection library. To add or remove, simply copy or cut the appropriate reference file into or from the integrated computer Library file folder. Hundreds of compounds are detectable.
  7. Raw Spectral File Retention:
    Like all Cerex analyzers, raw data files are always retained. The analyzer is not limited to only producing gas concentration values, and the raw data may be processed at any time after collection for third party verification and quality assurance for legal defensibly data.
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Cerex Announces Distributor Agreement with Xonteck, Inc.

Contact Xonteck USA

Xonteck, Inc. of Fremont, CA is pleased to announce the agreement it has reached with CEREX MS LLC of Atlanta, GA for Xonteck, Inc. to become CEREX’s strategic partner and distributor to manage marketing, sales, and services for all Cerex products in Asia-Pacific region.  This agreement is effective immediately.  All distributions in this region will be managed through Xonteck, Inc. from either the Fremont, California office or the office in Wuhan, China.  A team of personnel with marketing, sales, and technical service expertise from Xonteck, Inc. with CEREX participation have been set up in Xonteck’s Wuhan and Fremont offices.  All future orders from this region shall be processed either from Xonteck, Inc. California or from the Xonteck office in Wuhan.  Future shipments will be F.O.B. Fremont, CA., U.S.A.

The purpose of this new arrangement is to streamline the future operation in this region.  Xonteck’s headquarters office is in California, and the office in Wuhan provides strategic support to the needs of the Asia-Pacific market.  Xonteck Inc. will facilitate the marketing and sales effort in this region.  The technical people and marketing people from Xonteck, Inc. will be visiting the local distributors, and participate in the regional exhibits in the coming years to coordinate, and to support the sales and marketing efforts.  All the sales leads will be processed and followed closely and supported through this arrangement.

We would like to welcome the participation and support of the current local distributors for this new arrangement, and we believe that this arrangement will eventually benefit all our team members, including our current local distributors.  The stronger and more coordinate marketing and sales efforts in this region will make our team much more competitive for our products and services in the future.

Asia-Pacific countries served by Xonteck, Inc.: Brunei, Cambodia, China, Hong Kong, Indonesia, Japan, Korea, Macau, Malaysia, Myanmar, Philippines, Singapore, Taiwan, Thailand, and Vietnam.

 Contact us today!

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Oregon Hazmat Responders Receive 2013 Senator Paul S. Sarbanes Fire Service Safety Leadership Award

Cerex is pleased to announce the Tualatin Valley Fire Rescue, using a Cerex Micro Hound UVDOAS multi-gas analyzer for overhaul phase airborne toxicants studies has received national recognition for their efforts to improve fire-fighter safety practices.


“(April 9, 2013) – The Congressional Fire Services Institute and the National Fallen Firefighters Foundation have selected Tualatin Valley Fire and Rescue, the Office of the Oregon Fire Marshal and the Governor’s Fire Service Policy Council as the recipient of the 2013 Senator Paul S. Sarbanes Fire Service Safety Leadership Award.”

“The three organizations are being honored for a joint research project titled, “A Study on Chemicals Found in the Overhaul Phase of Structure Fires Using Advanced Portable Air Monitoring Available for Chemical Speciation”. This eight month-long project used advanced portable detection technology to identify and quantify the airborne hazards present after a fire was extinguished. The findings provided new information on previously undocumented toxic chemicals found during the overhaul phase that can pose serious health risks to firefighters and fire investigators. The study also provided a wide range of techniques that can be employed by first responders to offset the effects of smoke exposure.”

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State of Oregon Acquires Cerex Micro Hound Multi-Gas Analyzers for Hazmat First Responders

Cerex Monitoring Solutions is pleased to announce having delivered 15 Micro Hound multi-gas analyzers to the State of Oregon. Oregon acquired the Micro Hound multi-gas analyzers following the conclusion of a detailed study of air toxics released during structure fires and evaluation of the technologies available to first responders to monitor hazardous gases. The Cerex Micro Hound analyzers were chosen as the best analyzer for the first response application. They have been distributed to Hazmat Emergency Response Teams statewide to allow the first response teams access to real time measurement data for improved decision making.

The study provides a wealth of real world data regarding the performance and functionality of a variety of commercially available portable multi-gas analyzers, sensors and samplers that were evaluated. Electrochemical cell, PID/FID, UVDOAS, FTIR and Gas Chromatography technologies were represented and evaluated. These instruments range in cost from $500.00 USD to $220,000.00 USD, and measurement data is compared head to head.

Traditional criteria allowed firefighters to remove self-contained breathing equipment when Carbon Monoxide gas concentrations fell below a 35 PPM threshold. The study concluded that other toxic gases may persist in concentrations up to or in excess of NIOSH IDLH or REL-ST standards as well as OSHA STELs or PEL-TWA standards. It also demonstrated that Carbon Monoxide concentration is not a reliable indicator of the presence of other toxicants. Among these measured compounds were: Benzene, Formaldehyde, Glutaraldehyde, Nitrogen Dioxide, Ozone, and Mercury.

Given the mission requirements, Cerex is proud that the Micro Hound multi-gas analyzer was selected to be the best technology for the first response application. We are also appreciative of the feedback received from all of the Oregon Firefighters. Many of the current Hound series features came as their suggestions. Ease of use, portability, ruggedness, sensitivity, and the ability to detect gases such as Ammonia, Benzene, Chlorine, Ethyl-benzene, Formaldehyde, Mercury, Sulfur Dioxide, Toluene and m, o and p-Xylenes at low PPB concentrations were all very important factors.

Standard features for the CEREX Micro Hound include integrated Wi-Fi, a full color touch screen interface, and options include a cellular broadband modem that provides access to the analyzer from anywhere in the world via Internet, email and text alerts, audible alarms, as well as cameras providing live visual and audio broadcast of the deployment zone.



“A Study on Chemicals found in the Overhaul Phase of Structure Fires using Advanced Portable Air Monitoring available for Chemical Speciation”


Deric C. Weiss and Jeff T. Miller


During the overhaul phase of a structure fire, firefighters commonly doff their self contained breathing apparatus SCBA protection for easier working conditions and traditionally rely upon carbon monoxide (CO) detection as the determinate for this action. A CO level of below 35 ppm has traditionally been the acceptable limit for firefighters to wear this lesser level of respiratory protection. Removal of respiratory protection during fire overhaul activities or in the general area can expose firefighters and fire investigators to an unknown variety of toxic chemicals and particulates. Typical structure fires involve high temperature destruction of many types of plastics, foams, various species of wood, fabrics and other materials. Gases and particulates liberated from these burning materials often contain toxic, reactive and otherwise unhealthy chemicals that are both inhalation hazards and skin absorptive hazards. This study focused on the direct reading of gases present during overhaul, measurement of these gases over an extended period of time in comparison to CO, and on the compilation of data to support and continue the understanding of post-fire event airborne hazards to firefighters and fire investigators.

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