31 | Page
OPERATION
AUTO TUNING
The auto tuning function runs the oven for a period of hours to optimize the controller PID
parameters. This optimization is intended for use only if the oven temperature is lagging,
overshooting, or failing to achieve the set point when large volumes or significant masses of
product are present in the oven chamber
Auto tuning will not allow the oven to exceed its maximum specified heating rates. The oven will use
the optimized PID settings until the controller is either tuned to different conditions or restored to its
factory configuration.
Setting Up the Auto Tune Conditions
Prior to auto tuning, set up the oven to match the conditions of your heating application.
• The oven should be turned off and resting at room temperature prior to starting the auto
tuning.
• Set the oven intake and exhaust vent to match your process configuration (closed, both
open, one slightly open, etc.).
• Product or samples must be present in the chamber in the volume, mass, and distribution
(spacing) of your recipe or heat application process.
o Depending on the heat levels involved, temperature spikes may occur in the
chamber. The manufacturer strongly recommends using wasting or sacrificial
product for the auto tuning.
Perform the Auto Tuning
1. Turn on the Oven
2. On the homepage, set the constant temperature set point to
the temperature you wish to optimize for.
3. Advance to the “Aut1” Auto Tune parameter from the
homepage using the Advance button.
4. Use the arrow button to switch “no” to “YES”.
a. After approximately 4 seconds the display will start to flash
the Auto tuning “Attn” alert message.
5. Use the Reset button to return to the homepage.
6. The oven will ramp up to and then down from the set point 5
times.
• The total auto tuning time is dependent on the oven
temperature and product mass being heated.
To Next Page
Loading...
