Auto Tuning Up150 Controller; Temperature Offset Procedure - Thermo Scientific CC58114PC Installation And Operation Manual

Auto Tuning the UP150 Controller
Auto tuning maximizes the performance of the chamber at a selected temperature
with the product load's characteristics, by operating with the quickest response
and minimal temperature overshoot.
Factory settings are for general purposes, but your process can be enhanced
through the auto tune feature. To obtain this maximum performance, follow these
steps to auto the controller.
1. Load the chamber with materials that have the same mass and thermal
characteristics as an actual product load.
2. Operate the chamber to the process temperature using either locator run
mode.
3. Start the Auto Tune: Press and hold the "SET/ENT" button for three seconds to
display the "modE" parameter of the Operating Parameter menu.
4. Press and release the "SET/ENT" button five times to advance to the "At"
parameter.
5. Press and release the "UP" arrow button to show "on" in the lower display.
6. Press the "SET/ENT" button once to enter the auto tune mode and exit the
Operating Parameters menu.
7. The controller will cycle three times through a heating and cooling pattern,
measuring the characteristics of the load and chamber temperature controls.
During the auto tuning, "At" will alternately flash with the measured
temperature (PV) display to indicate that the auto tuning progress. The length
of time for the auto tune vanes with the load, chamber size and temperature
selected.
8. The auto tune is completed when the regular display of the measured
temperature is shown without the "At" value flashing. The chamber should now
operate to the process temperature with the given product load, with the
quickest response and minimal temperature overshoot.

Temperature Offset Procedure

The purpose of this procedure is to create an offset in the displayed temperature
measurement for the Yokogawa model UP150 temperature controller.
Thermo Scientific
If the process temperature or load changes significantly another
auto tune session may be necessary to optimize the chamber
performance. Recording the values added to "P", "I", Avoid "D"
from previous auto-tune section, would allow these values to be
manually extended using Table 2.
Operation - UT150 Controller
Auto Tuning the UP150 Controller
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