Function .0 Option 2 - Omega CN9000A Series User Manual

STEP
To change Option 0 to
3
Option 1:
To start Autotune process:
4
"AT" display will alternate with
process temperature display.
The Autotune algorithm can be tried on any process.
However, it is designed to work best for heating
processes when the setpoint is at least 100°F (50°C)
above ambient. Other processes may need to be
manually tuned for best results.
5.1.3 Using Autotune PT (Push-to-Tune) Function .0, Option 2
Used to fine tune difficult applications at setpoint. Useful if the
setpoint or thermal conditions are substantially changed.
During PT tuning some overshoot will occur. If this is
unacceptable, temporarily lower the setpoint. PT tunes the
parameters listed above except DAC. Proportional cycle time is
recalculated but needs manual confirmation.
Temperature
setpoint
Start PT
prop band
(100% output power)
Figure 5-2. Autotune PT
ACTION
Press
Option (flashing)
Press P
NOTE
DISPLAY
1.
A
T E M
new PID
values
entered
Time
0
T
P
51