TC110 Series
Water Temperature Control Units 882.03888.00
•
09/19/2018
25
4-3
Starting the Temperature Control Unit
You can also use these steps to AUTO-TUNE the Controller, and operate the Unit
with the Controller.
The Auto-Tune function lets you fine-tune the control PID to process requirements. Activate
the Auto-Tune function whenever the process under control changes. Don't be alarmed by
control response. It may take the process temperature above and below the set points as
many as three (3) times. It will then level off and control to the process set point. Auto-
tuning can take up to 45 minutes, and is best done before any product is run.
1. Push the ON/OFF rocker switch to the ON ( | ) to energize the unit and begin the
temperature control cycle. The switch will be illuminated whenever the unit is on.
2. The unit will automatically vent for approximately one minute.
3. If needed, press and hold the vent button to purge any additional air from the process
loop.
4. Set process temperature (PV) by pressing the
Enter key until SP1 appears in the
upper display. Then press the
Down Arrow or Up Arrow keys to adjust the
setpoint.
5. If the unit does not maintain its process value, allow your process to reach the set point
temperature. Then Autotune the control. In operator level 2, set the AUTO-TUNE ENABLE
parameter, ‘A.tUn’ to ‘on’. Press the Page and Scroll buttons together to return to the
Home display. The display will flash ‘TUne’ to indicate that tuning is in progress. For more
information, please see the controller manual.
