INSTALLATION Series
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Edition 2018-08-20 605262EE
4.6.8 Pressure control configuration
Select the configuration what your application needs.
System Configuration
Constant gas flow available
Constant gas flow not
available
Tv*<= 500 sec Tv* > 500 sec
Adaptive pressure
controller
(Refer to chapter:
Pressure controller)
Fixed pressure controller
(Refer to chapter: Pressure controller)
Fixed pressure controller
(Refer to chapter: Pressure controller)
Soft Pump Soft Pump (Refer to chapter: Pressure controller)
Use the formula below to define the applicable pressure control algorithm.
q
L
gasflow for learn [mbarl/s]
p
SFS
sensor full scale pressure [mbar]
Tv*
Vacuum time constant [sec]
CV
Chamber Volume
[l]
P
SFS
•
CV
Tv =
q
L
Upstream
chamber
valve
Pump
Downstream
chamber
valve
Pump