In high-temperature metal processing and molten metal casting, accurate thermal profiling is critical to product quality, process safety, and refractory lining life. Non-contact optical pyrometry allows engineers to measure temperatures from 200°C up to 3200°C from safe distances with optical resolution up to 300:1.

Why Optical Resolution & Wavelength Matter

Short wavelength instruments (1.0µm and 1.6µm) minimize errors caused by emissivity changes on molten iron, steel billets, and hot rolling lines. Dual-color (ratio) pyrometers further ensure reliable readings in the presence of smoke, steam, dust, and partially obstructed sightlines.