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Default Oven thermostat question

nesesu wrote:
On May 16, 10:04?am, Smitty Two wrote:
In article ,





wrote:
On Fri, 13 May 2011 21:55:13 GMT, Jesse wrote:


Would anyone happen to know, in a typical oven thermostat set at
say 350 degrees, when it would usually kick on? At 345? At 340?
Lower?


And what would usually be the overshoot? Would it hit a high of
350? Or even higher?


I'm sure these figures vary somewhat model to model. I'm just
looking for a ball park figure.


Thanks.


Unlikely to be better than +/- 5% (17 deg). ?Possibly no better than
+/- 10% (35 deg).


Certainly subject to variation depending on age and technology used.
An electric oven could possibly have better control than a gas oven
(if PWM used to modulate the heating elements).


Do an online search for specs on various brands. ?Is Jenn-Air better
than Kenmore or GE?


John


The OP is asking about the size of the hysteresis band, not the accuracy
of the control. Two entirely different things. And what mm was talking
about was also an accuracy adjustment -- surely there is no user option
to adjust hysteresis.- Hide quoted text -

- Show quoted text -


Further to your comments, Smitty, there is the hysteresis band of the
actual thermostat PLUS the significant delay in the heat from the
element [which is also slow heating an cooling] getting from the
bottom of the oven up to where the sensor usually is at the top.
In the occasional tests I have done using a thermocouple [fairly fast
responding] a measurement on the shelf in mid oven swings 30 or more
degrees F as the element cycles.

Neil S.


How long did each temperature cycle take, assuming this 30 or so degrees
swing?