Need to Update
- Thread starter JLoring
- Start date
Bryan Mayland
TVWBB Hall of Fame
The core algorithm of the controller hasn't changed in a very long time, a year since any changes have been made, and several years since any major change. If your output is 90% within 1 degree of setpoint, that's because that's how it is configured to respond to the conditions it is experiencing.
If the P constant is too high (like 50), 1 degree could equal 50-100% output.
If the temperature is dropping, the D constant might be too high.
If the temperature has been hanging below the setpoint, HeaterMeter keeps pushing its foot down on the accelerator more and more until it gets to the setpoint. How fast this happens is compounded by the I constant.
If your temperature is bouncing around every second, there is too much noise to make a good reading so there's no telling what output to expect.
If the P constant is too high (like 50), 1 degree could equal 50-100% output.
If the temperature is dropping, the D constant might be too high.
If the temperature has been hanging below the setpoint, HeaterMeter keeps pushing its foot down on the accelerator more and more until it gets to the setpoint. How fast this happens is compounded by the I constant.
If your temperature is bouncing around every second, there is too much noise to make a good reading so there's no telling what output to expect.
John Bostwick
TVWBB Wizard
Depends on your smoker and the you have it set up. There is no correct answer.
Byran or someone else will probably reply with some help, but you will just need to make some adjustments to see how they effect your temps.
RalphTrimble
TVWBB Diamond Member
Maybe he went from the HM version that had the B(ias) function in the PID to the modern version that doesn't?