Mokon Duratherm - Section 6 - Options; 6.1 Pressure Regulator

35
Keys
Note: Pictured is the 3216 Eurotherm controller - this also applies to 3116, 3204 and 3208 series
controllers.
5.2 Automatic Tuning
In tuning, you match the characteristics (PID parameters) of the controller to those of the process
being controlled in order to obtain good control. Good control means:
 Stable, ‘straight-line’ control of the PV as set point without fluctuation.
 No overshoot or undershoot, of the PV set point.
 Quick response to deviations from the set point caused by external disturbances, thereby
rapidly restoring the PV to the set point value.
 Tuning involves calculating and setting the value of the parameters listed in the table below.
The PID controller consists of the following parameters:
Button or
Indicator
Name
Explanation
OP1
Output 1
When lit, it indicates that heating output
is on. “HEATING” will scroll.
OP2
Output 2
When lit, it indicates that cooling output
is on. “COOLING” will scroll.
Page button
Press to select a new list of parameters.
Scroll button
Press to select a new parameter in a list.
Down button
Press to decrease a value in the setpoint.
Up button
Press to increase a value in the setpoint.
*ALM
Alarm
Flashes when in alarm condition. “ALARM
MESSAGE” will scroll.
OP4
Output 4
When lit indicates that the air purge
output is on. “AUTO AIR PURGE” will
scroll.
RUN
Timer
Running
When lit indicates that the air purge
output is on. “AUTO AIR PURGE” will
scroll.