OT: How to measure 900°F...?

Question

Howdy,I need to calibrate the self-cleaning temperature of myoven.It wants to be about 900°F.I can get expensive thermometers that will measure in thatrange but this is a one time thing.Next, I thought of pyrometric cones (that deform atspecified temperatures) but I can't find anything in thattemperature range as they are typically used in kilns andsuch at higher temperatures.Can you think of a way I could measure the 900°F temperaturethat is reasonably accurate, but of modest cost?Many thanks,

G. Morgan · Answer

Hi !!!Nice.Hot !!!How about a multi-meter that takes a thermocouple? cheepie one is $30 and includes the thermocouple.

Ed Pawlowski · Answer

Does it work?  If so, just turn the switches to clean and let it rip.  Fromt he factory it is close enough that it should never need to be changed. It is not  going to matter if the temperature is off 25 or 50 degrees either way. Everything in there wil go to soot ad different temperatures anyway.

Stormin Mormon · Answer

I thought those things were supposed to lock closed, during the self clean feature, so you can't use an IR thermometer. You could use a wireless remote pyrogenic blast furnace thermometer, but they tend to be expensive.

hweld · Answer

a thermal paint crayon that changes color, mark the inside glass withone above and below the target temp.

G. Morgan · Answer

Just stick the T/C in and close the oven door leaving a couple of inches ofleed hanging out to attach the multimeter.  The oven door isn't so tight as toimpede the reading or damage the leed.

Kenneth · Answer

Hi Jeff,I thank you for your suggestion, but those are thepyrometric cones that I mentioned. They (at least those Ican find) work only at higher temperatures than I need tomeasure.All the best,

Kenneth · Answer

wrote:Hi again,The optical pyrometer approach won't work because (it's  myunderstanding that) they can't read "through" glass and Ican't open the door of the oven while it is in self-cleanmode.All the best,

Kenneth · Answer

Hi again,Another good suggestion...If the probe is connected to the meter with a reasonablythin wire, it could work.I could easily close the door on a thin wire. I often dothat to measure temperatures in the cooking range.All the best,

Malcolm Hoar · Answer

Yeah, right!I'd go with the thermocouple and wager you $10 that you'llfind it quite useful over a period of years.Look at this as an opportunity to acquire a flexible andreally quite useful new tool ;-)

OT: How to measure 900°F...?

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