Across a number of industrial or research applications, gases must be diluted from high concentrations to a range of lower concentrations. A common application for gas dilution is in the calibration of gas detectors, analyzers, and sensors.
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If gas dilution equipment is not set to the appropriate specifications, the end product can be impacted negatively. Often, it is crucial to have a good level of understanding relative to each element of a gas dilution system and how it influences the process.
Gas Supply in the Gas Dilution Process
Typically, processors mix and dilute gases on-site, due to purchasing and storing a range of customized mixtures that meet specific specifications from a gas supplier can be costly. Supplying only pure gases can reduce costs, as well as enabling the user to alter the concentrations of the constituent to produce a broad range of mixtures.
Managing the Gas Dilution
Dilution systems can incorporate many technologies, with mass flow controllers being one of the most sought-after and accurate options. When choosing flow controllers and configuring a system for gas dilution, it is critical to examine all of the gases which could be potentially used, as well as knowing the appropriate output dilutions.
Material compatibility is key for the lifespan of the dilution system, while flow ranges are vital to offering the largest and most accurate range. Other options, such as built-in sensors or alarms, can facilitate real-time updates that alert a technician if essential criteria are met.
Gas Dilution from Environics
Environics gas dilutors and gas dividers automatically generate accurate gas standards for deployment in rapid, multi-point calibration. These instruments are traceable to the National Institute of Standards and Technology (NIST), possessing accuracy levels of +/- 1% and repeatability of +/- .05% of setpoint
All Environics units have been developed specifically to meet the customers’ individual needs. In addition to material compatibility, gas dilution systems are tailored for the dilution range, and output flow rate required.
The Environics® Series 4040 is a computerized gas dilution system that can generate precise standards. The gas diluters or mixers can also be used for analytical research or production as they have the capacity to produce a gaseous atmosphere or create gas mixers.
This gas dilution system can generate concentrations that range between percent to parts per billion levels for both multi-point and single calibration: meaning fewer cylinders are required.
The gas dilution system is comprised of both the Series 4040 instrument and the user’s personal computer. The user interface is Windows-based software that transmits to the Environics system through USB, RS232, or Bluetooth (with a Windows-based, enabled device). To discover more about the gas dilution systems available, contact Environics today.
This information has been sourced, reviewed and adapted from materials provided by Environics, Inc.
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