FrankS Posted September 18, 2018 Author Share Posted September 18, 2018 using a thermopro too Quote Link to comment Share on other sites More sharing options...
Smokin Monkey Posted September 18, 2018 Share Posted September 18, 2018 So this could be the problem. The Thermopro is reacting quicker than the Q-Lite. I would still be Happy with the +or- 10’F Quote Link to comment Share on other sites More sharing options...
FrankS Posted September 18, 2018 Author Share Posted September 18, 2018 23 minutes ago, Smokin Monkey said: So this could be the problem. The Thermopro is reacting quicker than the Q-Lite. I would still be Happy with the +or- 10’F its fluctuating much more now 220f - 280f, up and down I think I need to tweak my drum/intakes/basket Quote Link to comment Share on other sites More sharing options...
Smokin Monkey Posted September 18, 2018 Share Posted September 18, 2018 All in let vents other than the Q-Lite feed should be shut, otherwise you will be drawing more air in than is necessary. Quote Link to comment Share on other sites More sharing options...
FrankS Posted September 18, 2018 Author Share Posted September 18, 2018 Just now, Smokin Monkey said: All in let vents other than the Q-Lite feed should be shut, otherwise you will be drawing more air in than is necessary. they are all shut man Quote Link to comment Share on other sites More sharing options...
Smokin Monkey Posted September 18, 2018 Share Posted September 18, 2018 Really need to see some pics of your set up. Quote Link to comment Share on other sites More sharing options...
Raptor72 Posted September 19, 2018 Share Posted September 19, 2018 15 hours ago, Smokin Monkey said: Ok, it’s how quick it looks at what’s happening and reacts. It is self learning. This is the definition. Term P is proportional to the current value of the SP − PV error e(t). For example, if the error is large and positive, the control output will be proportionately large and positive, taking into account the gain factor "K". Using proportional control alone in a process with compensation such as temperature control, will result in an error between the setpoint and the actual process value, because it requires an error to generate the proportional response. If there is no error, there is no corrective response.[1] Term I accounts for past values of the SP − PV error and integrates them over time to produce the I term. For example, if there is a residual SP − PV error after the application of proportional control, the integral term seeks to eliminate the residual error by adding a control effect due to the historic cumulative value of the error. When the error is eliminated, the integral term will cease to grow. This will result in the proportional effect diminishing as the error decreases, but this is compensated for by the growing integral effect. Term D is a best estimate of the future trend of the SP − PV error, based on its current rate of change. It is sometimes called "anticipatory control", as it is effectively seeking to reduce the effect of the SP − PV error by exerting a control influence generated by the rate of error change. The more rapid the change, the greater the controlling or dampening effect.[2]. Sounds very daunting, but it’s getting a balance between all three that gives a smooth temperature control. Too close and its erratic, too wide and high temperature fluctuations. Hope this helps?! ? Thanks for clearing that up ........? 1 Quote Link to comment Share on other sites More sharing options...
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