3. SET POINT ADJUSTMENTS: The temperature controller normally
displays the chamber temperature. To view or change the temperature
set point proceed as follows:
a. Press and hold the “STAR” (*) key and use either the UP or
DOWN arrow key to adjust the set point to the desired
temperature. Release the “STAR” (*) key.
b. Allow at least 30 minutes for the chamber temperature to stabilize.
The Autotune program automatically adjusts the controller parameters to
achieve optimal temperature control.
It is not necessary to run the Autotune program when setting up the oven.
However, if the temperature appears to be unstable, the Autotune program
can be run using the procedure shown below:
For best results:
• Set the usual set point temperature and use normal load conditions.
• Allow the oven to stabilize at set point for at least 30 minutes.
Auto Tuning Procedure
1. Enter the Program mode by pressing and holding BOTH the UP and
DOWN arrow keys for 3 seconds.
2. Release BOTH arrow keys when ‘tunE’ is displayed.
3. The controller display should now be alternating between ‘tunE’ and
‘oFF’.
4. Press and hold the “STAR” (*) key. Press and release the up arrow key
until ‘At.SP’ is displayed. Release the “STAR” () key.
High Performance Incubator 5-3
Thermo Scientific
Section 5
Operation
Temperature
Controller (continued)
Autotune
Press
Controller
*
View setpoint
*
t
Decrease setpoint
*
s
Increase setpoint
