[Stoves] Infra-red thermometer choice and supply
Crispin Pemberton-Pigott
crispinpigott at gmail.com
Tue Dec 18 09:31:22 CST 2012
Dear Steve
I need you to please expand on this for clarity.
>The spectrum of the emiission changes, and the sensor materials used for
low temperature IRs can't cope.
Do you mean the high temp sensors can't pick up the low temps? Or they have
a preferred range? The ones I have used cover -50 to 999. The ones for house
evaluations are about -50 to +250.
>I use precision IR thermometers for operation at between 500 and 2000C,
they have no sensitivity below 500C.
Very interesting. I have never had my hands on something that goes that
high. Is the lack of sensitivity because of the need to spread out the
incoming heat to limit damage to the cell? Interesting problem to solve.
Yours must have 4 digits. Maybe more? How accurate is 'precision'?
Thanks
Crispin
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