Re: Couple questions
Rob, I'm assuming that you're using a regular kitchen oven t-stat. This thing is really just and ON/OFF switch. When certain temperatures are exceeded at the thermocouple, the switch is OFF. When the temperatures are below the set temp, the switch if ON.
Set the t-stat dial to OFF and take a volt-ohm meter and check continuity between all of the contacts, writing down your results. Now, set the temp dial to about 150deg and check the continuity between all contacts again. Shouldn't be much difference. Now dip the thermocouple in a pot of boiling water, let it sit for a minute or so, and check the continuity again. You should have a set of contacts that that are different from the previous setting, that is, they should be open or OFF. These contacts controlled the oven element and now will control your contactor coil in your oven.
Remember, if temperature of thermocouple is at or above the setpoint, contacts will be open (element OFF). If below setpoint, contacts will be closed (element ON).
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