How the protective cover, sapphire window and cooling keep delicate optics safe in a 2000°C furnace.
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The camera and lens are delicate; the protective cover is what lets them survive inside a furnace.
A multi-layer stainless cover, a sapphire pinhole window and continuous air + water cooling work together to shield the optics.
Extra-long stainless cover extends the lens through the furnace wall.
Hard, heat-resistant sapphire with only a 1 mm port exposed.
Circulating water carries radiant heat away from the cover.
Air cools the optics and forms a curtain at the pinhole.
Confirm air, water and signal connections are correct.
Turn on compressed air and ventilate for about 5 minutes.
Switch on power once cooling is confirmed.
Guide the protected probe into the furnace.
Send your furnace temperature and wall thickness — we will confirm the protective configuration.
