Tune At Setpoint Program - Omega Engineering CN9400 User Manual

When the TUNE program is complete the upper alternating
display stops and only the process temperature is displayed. The PID
values are entered automatically. The process temperature will rise
to setpoint and control should be stable. If not, this may be
because optimum cycle time is not automatically implemented. To
set the cycle time see PROPORTIONAL CYCLE-TIME.

TUNE AT SETPOINT PROGRAM

Temp
Setpoint
Prop band
(100% output)
Enter program mode and select
And from the display select
Exit program mode.
8
Start
TUNE AT.SP
Overshoot
during tuning
Tuning
PID
3
1 / on/off tuning
4
cycles
The TUNE AT SETPOINT program will now start. The upper display
will alternate tune and the process temperature.
The lower display will read the setpoint value.
Note: During tuning the main setpoint (SP1) LED will flash.
When the TUNE AT SETPOINT program is complete the upper
alternating display stops and only the process temperature is
displayed. The PID values are entered automatically. The
process temperature will rise to setpoint and control should
be stable. If not, this may be because optimum cycle time
is not automatically implemented. To set the cycle time see
PROPORTIONAL CYCLE-TIME.
New PID
values
entered
Time
REMINDER OF INSTRUMENT ADJUSTMENTS
TUNE
Press
OFF
Press or
Press
TUNE
options.
AT.SP
Note: If in difficulty by becoming "lost" in program mode,
press
to display mode, check the Menu Navigation
summary above and try again.
together for 3 seconds for program entry or exit.
to scroll through functions.
together or together to change levels or alter
and together for 3 seconds to return