I was thinking of doing something like this, though you could just be lazy and make it a separate unit, maybe just use something like this, remote control and timer in one:
http://www.amazon.com/NuGiant-34000-Wireless-Remote-Control/dp/B004C1Q8PO
The one nice thing about having a timer built in is that it could shut off only the SSR and not the PID, then you can watch as it cools...though I really don't think the circuit should be all that complicated as above. I guess it depends what kind of control the timer has, but even if it's a simple magnetic relay it should be fine, it's not going to be turning on/off constantly like the coil SSR, it'd just be passing through while the timer is on, and off when it's off...
Then again looking at those omrons, i'm thinking they might be a little too funky for what you're trying to do, I bet you could find something a little more to the purpose, especially cause it doesn't seem like those things have any way to be mounted to a case or anything? not sure how you would easily adjust or anything...unless it was just fixed or you glued it in there...i'm just wondering if there might be a better timer for the job that wouldn't be as complex and would have more of what you need already there for you...
something like this for example ,similar price, and if you weren't going to have a user-adustable time, this would be fine up to an hour:
http://www.ebay.com/itm/DC-12V-dela...206?pt=LH_DefaultDomain_0&hash=item3393c8856e
You could just use an "always-on" momentary switch, so that pushing the switch would then turn off and back on the timer module, resetting the timer for another hour. That's assuming there's not already a place to put a regular momentary switch on there....not sure, there's a few variations i've found already.
it also seems some of the 1/16th size auber pid's have built in timer's, and it lets you wire up an external reset switch for the timer, so you could still have separate buttons to start/stop the timer...that would be an interesting idea right there as well...
http://www.auberins.com/index.php?main_page=product_info&cPath=1&products_id=239
haha, the more I dig around ebay, the more cool stuff I find...
http://www.ebay.com/itm/12V-Digital...178?pt=LH_DefaultDomain_0&hash=item2ede513b5a
i guess those are DC, so you might need one of these to wire em up:
http://www.ebay.com/itm/AC-110V-220...943?pt=LH_DefaultDomain_0&hash=item51c78ed657
http://www.amazon.com/NuGiant-34000-Wireless-Remote-Control/dp/B004C1Q8PO
The one nice thing about having a timer built in is that it could shut off only the SSR and not the PID, then you can watch as it cools...though I really don't think the circuit should be all that complicated as above. I guess it depends what kind of control the timer has, but even if it's a simple magnetic relay it should be fine, it's not going to be turning on/off constantly like the coil SSR, it'd just be passing through while the timer is on, and off when it's off...
Then again looking at those omrons, i'm thinking they might be a little too funky for what you're trying to do, I bet you could find something a little more to the purpose, especially cause it doesn't seem like those things have any way to be mounted to a case or anything? not sure how you would easily adjust or anything...unless it was just fixed or you glued it in there...i'm just wondering if there might be a better timer for the job that wouldn't be as complex and would have more of what you need already there for you...
something like this for example ,similar price, and if you weren't going to have a user-adustable time, this would be fine up to an hour:
http://www.ebay.com/itm/DC-12V-dela...206?pt=LH_DefaultDomain_0&hash=item3393c8856e
You could just use an "always-on" momentary switch, so that pushing the switch would then turn off and back on the timer module, resetting the timer for another hour. That's assuming there's not already a place to put a regular momentary switch on there....not sure, there's a few variations i've found already.
it also seems some of the 1/16th size auber pid's have built in timer's, and it lets you wire up an external reset switch for the timer, so you could still have separate buttons to start/stop the timer...that would be an interesting idea right there as well...
http://www.auberins.com/index.php?main_page=product_info&cPath=1&products_id=239
haha, the more I dig around ebay, the more cool stuff I find...
http://www.ebay.com/itm/12V-Digital...178?pt=LH_DefaultDomain_0&hash=item2ede513b5a
i guess those are DC, so you might need one of these to wire em up:
http://www.ebay.com/itm/AC-110V-220...943?pt=LH_DefaultDomain_0&hash=item51c78ed657
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