Gas Select™ Gas List for Alicat Mass Flow Meters and Controllers
Most Alicat gas mass flow meters and mass flow controllers come standard with an onboard library of up to 130 pure and mixed gas calibrations called Gas Select. Users may switch between selected gases on the fly without any need for recalibration of the mass flow meter or controller. Gas Select uses NIST Ref Prop 9 gas properties data for these gas calibrations.
Any of the preloaded gases may also be used to generate new mixed gas calibrations using COMPOSER, the gas composition firmware that is part of Gas Select.
Here is the complete list of preloaded gases and their properties, including absolute viscosity, density, and compressibilty at both 25°C and 0°C.