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Old 07-18-2011, 08:21 PM   #11
I use secondaries. :p
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Originally Posted by Bachhus View Post
I didn't want to deal with a pid either on my boil kettle. I opted to go the route of a PWM ( pulse width modulator). My reasoning was I could build it, I like doing that sort of thing, I would have a simple dial that took it from off to full power and could easily be dialed back to achieve the desired power without having to change duty cycles on a pid. Walker posted some great info on PWM designs a while back. That's what I used and changed a few things around to have led indicator lights.

My 0.02. Hope it helps
The Auber PIDs with manual mode are actually easy to adjust. I don't have/use one myself, but in manual mode, the "percent" of total power is displayed on the Set Value window of the pid and the ^ and v keys adjust it.

But, yeah... a PWM with a knob is pretty cheap to build. I have a little red LED indicator on mine, too, but I just didn't include one in the schematic I drew and posted.

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