58
ACX Analyzer System Commissioning Instruction
CI/ACX-EN Rev. D
AO2000-Fidas24: VOC Analyzer Start-Up,
continued
Step
Action
Adjust the variables for the internal pressure regulators
Steps 6 to 8 should only be performed if the analyzer module does not
automatically start operation at the pressure values indicated on the
analyzer data sheet. If the internal pressure controller values do not
match these values, the pilot pressures must be changed.
6
Instrument air: Use the external pressure regulator to set the
Output
variable to approx. 60 % (max. 70 %).
Variable too large
⇒
reduce pressure.
Variable too small
⇒
raise pressure.
(The
Input
variable depends on the sample gas flow rate.)
7
Combustion air: Use the external pressure regulator to set the
Air
variable to approx. 50 % (max. 60 %).
Variable too large
⇒
raise pressure.
Variable too small
⇒
reduce pressure.
8
Combustion gas: Use the external pressure regulator to set the
H2
variable to approx. 35 % (max. 40 %).
Variable too large
⇒
raise pressure.
Variable too small
⇒
reduce pressure.
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