Thermal mass flow controllers are also capable of flowing multiple gases, but with variable accuracy. Imagine you have a thermal flow controller calibrated to flow argon. To measure the flow of air, you must find air in the manufacturer\u2019s table of K-factors and multiply this conversion factor against your argon-calibrated flow reading.<\/span><\/p>\n <\/p>\n
K-factors are accurate for specific temperature and pressure conditions. This means operating conditions deviating from those defined in the K-factor chart will result in lower accuracy flow corrections. For this reason, many manufacturers of thermal mass flow instruments provide much less stringent accuracy specifications when using K-factors.<\/p>[\/et_pb_accordion_item][\/et_pb_accordion][et_pb_text _builder_version=”4.23.1″ _module_preset=”default” global_colors_info=”{}” theme_builder_area=”post_content”]
Conclusion<\/h2>\n
With Alicat mass flow instruments, you can change between 98+ gases without any loss of measurement or control accuracy.<\/p>\n