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Step 8Test the Fan and Bottom Peltier
These steps need to be performed quickly! If the peltier is connected backwards or is upside down - it'll burn up in a very short period unless it's disconnected.
1. Plug in the 12v power supply (fan should spin up)
2. Quickly touch the top of the peltier (or measure it with a thermometer)
3. Is it warm? UNPLUG THE POWER NOW! (peltier is backwards or upside down)
4. Is it cold? Good! (unplug the power)
1. Plug in the 12v power supply (fan should spin up)
2. Quickly touch the top of the peltier (or measure it with a thermometer)
3. Is it warm? UNPLUG THE POWER NOW! (peltier is backwards or upside down)
4. Is it cold? Good! (unplug the power)
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Jul 23, 2010. 4:05 AMUgifer
says:
Surely the plan would be to connect the power for a second or two at a time until you can detect whether the top is getting hot or cold. That way it never need go about about 40C and there's no scramble to disconnect it if it's getting hot. Great project BTW.
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