Am I the only one that puts a PID on his oven?
So I have a cheap Hamiltonbeach (WallyWorld) toaster oven to cook my bullets. I think I paid the Rain Forrest $50 for it. I'm wedded to Hi-Tek Supercoat so I'm convinced that accurate temperatures are critical. The oven has no useful thermostat so I hook a PID to it. It works great.
Here's my concern. The PID constantly cycles the oven on and off to keep the temperature. I mean it flips it on and off every 5 seconds or more.
Is this constant on-and-off going to kill the oven? Or cause overheated wires or components? I mean it's not exactly Swiss quality.
Your PID Temp Cntrl'r need not cycle like a switch...
Quote:
Originally Posted by
D.Bullets
You installed a PID to have accurate control of the temperatures in the oven to get a good PC cure. Also the PID is not kicking out full power when cycling on (thats what they do). You will want the fan running at full speed all the time to circulating the heat evenly (factory thermostats have a larger temp variance for more fan circulation time, reducing hot spots) On mine once up to tempature the PID would start short cycling at a reduced power and would enen not turn the fan.
Hooking the fan up directly to the power switch has really helped with all my oven cure issues. Hoped this helps you (everyone) out.
Greetings,
Some PID controllers can be configured as a "switch", but that wastes their programability, as it were.
They are to be configured to reduce power output "proportional" (gain) to the difference between "setpoint" & "probe input."
The "Intergral" action is added to the Gain so that the closer to the setpoint, the output slows to a crawl, ideally not overshooting to much, which calls for zero output.
The "Derivitive" function & adjustments is too complex for this brief discussion.
If your PID is cycling like a switch, it's setup incorrectly.