Series 612  OPERATION 
 
605262EE  Edition 2018-08-20  81/
 
5.5  Pressure control 
 
 
To prepare valve for PRESSURE CONTROL perform complete «Setup procedure». 
The valve has parameters that may be modified to tune pressure control 
performance. Refer to «Tuning of control performance». 
 
The included PID controller controls the chamber pressure according to the pressure setpoint by means 
of the valve position. The PID controller works with an adaptive algorithm to achieve best results under 
altering conditions (gasflow, gas type). 
 
 
Local operation: 
(‘Control View’ resp. ‘Control Performance 
Analyzer’) 
Remote operation: 
(Refer to chapter «OUTPUT Buffer» > «PRESSURE 
SETPOINT» for details) 
Select or enter pressure setpoint 
1.  «OUTPUT Buffer» > «PRESSURE SETPOINT» 
2.  Select valid value 
 
3.  «OUTPUT Buffer» > « CONTROL MODE 
SETPOINT» 
4.  Select [Pressure] (value = 5)