Lakewood, Colorado, August 21, 2017 – All gas flow calibrators are not the same. Not only do the products vary, but the technology may as well. A calibrator that uses the International System of Units (SI base units) of time and length to derive gas flow measurements can be considered “primary technology”. Secondary technologies use proxy methods such as differential pressure to assume gas flow.
The seven SI base units are length, time, mass, electric current, thermodynamic temperature, amount of substance, and luminous intensity. Since there is no SI base unit for the direct measurement of gas flow, the base units of time and length are used to calculate flow rates.
Mesa’s DryCal technology uses a glass tube with a precisely known volume and a moving piston that triggers light sensors. Thus, the working principles of DryCal technology use the SI base units of time and length to calculate gas flow, making it one of the only primary technologies on the market.
When considering gas flow calibrators, be sure to look for an instrument that provided accurate, reliable, primary gas flow readings. Consider a name you can trust, such as DryCal from Mesa Labs, with over a quarter century of experience in the flow calibration industry.
Want to learn more about the science behind Mesa’s Primary Gas Flow Calibrators? Watch this video.