For analysis of Helium (He) in a binary gas mixture in process gases such as He in air, He in Nitrogen (N₂), He in Carbon Dioxide (CO₂), He in Argon (Ar), He in Oxygen (O₂), etc.

For continuous analysis of many binary gas mixtures comprised of H₂, CO₂, O₂, CH₄, SO₂, Ar, He, NH₃, SF₆, air, and others. Applications include heat treating atmospheres, welding gas mixtures, blanketing gas mixtures, Ammonia synthesis, leak detection, purge monitoring, flue gas, magnesium blanketing by SF₆ and others.