Standard Applications of Gas Flow Instruments

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Standard Applications of Gas Flow Instruments

Zero Air Generator
Zero Air Generator is suitable for use as: a zero reference calibration gas, ultra-pure combustion air for flame ionization detector, and service air for pneumatically operated valves.

Calibrators for ambient air analyzers
Dynamic calibration of ambient air analyzers. The systems automatically performs zero, precision, span and multi-point calibrations using NO, NO2, SO2, CO, 03, hydrocarbons and other gases of interest. The systems meet all U.S. Environmental Protection Agency requirements.

Calibrators for CEM's
Automatically generates precise gas standards for rapid multi-point and multi-scale calibration of Continuous Emissions Monitors (CEM's). The instrument meets or exceeds the performance requirements of the United States EPA 40 CFR Part 51 Method 205 Appendix M.

Preparation of calibration standards for VOC's
The system is designed for the preparation of calibration standards used for VOC (Volatile Organic Compounds) monitoring programs. It can dynamically produce ppb level standards from ppm level cylinder gases.

Preparation of calibration standards for Gas Chromatography and Mass Spectrometry
The system is designed for the preparation of calibration standards used for Gas Chromatography (GC) or Mass Spectrometry. Our systems can produce gas concentrations from percent to ppb levels at the required flow rates for single or multi-point calibration. In all cases, Environics mixers allow you to use less expensive single-gas cylinders or bulk tanks in place of a high number of expensive blended cylinders.

Gas Divider
The system is used for the dynamic calibration of automotive or mobile source emissions analyzers.

Hypoxia Training
Simulates hypoxic conditions and can be utilized for both research and aviation training purposes.


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Environics is a world leader in computerized gas flow instrumentation. Our headquarters for design, manufacturing, sales and service is located in a modern 11,000 square foot facility in Tolland, Connecticut. We are ISO 9001 certified, having received ISO 9001 Quality Systems Certification in April, 1997.

As of April 2011, we are a Women Owned business, certified through the Woman Owned Small Business Program run by the United States SBA. Environics was awarded the 2020 Family Business of the Year by the CT District SBA based on our growth over the past 15 years.

We encourage you to challenge us with your most difficult requirements. We specialize in custom systems. We have thousands of systems in the field and have developed an extensive library of applications and solutions to meet our customers' needs. The application of our technology has enabled us to become the world leader in user-friendly computerized gas flow instrumentation.

At Environics, our team is dedicated to customer service before, during and after your system is built. We stand by our systems and believe in building long-term relationships with our customers.