Forum Discussion
MrWizard
Jul 27, 2006Moderator
professor95 wrote:dash8wrench & MrWizard wrote:
Here's a thought to chew on...
With the low oil shut off most of these units have and some of us considering enclosures, what are your thoughts about using an appropriately rated Klixon temp switch for thermal protection for the generator head in the shut down circuit? Just allow for the switch to be normally open and then closed to ground when in an overtemp situation.
nice idea ( if you can find one )
i know all the ones I see in the surplus catalogs are normally closed and open at temp
seems they all come from coffee makers or other heating devices
Why not pop a 7404 Hex Inverter onto a small perf board after the NC device? Cheap. Easy to build. Will allow a NC device to behave like a NO device. If you need a circuit, I can give you one.
now logic circuits are something i have experience with
and the 7404 is a 5 volt device designed to invert a signal
but it is NOT a load carrying device
I doubt it would survie the first time it tried to ground the ignition of the motor to turn it off, once it burned out, it would be same as not being there
the circuit would need to be a little more elaborate,
switching on a transistor or SCR to ground the ignition
maybe a solid state thermo-sensor could be used
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