Analysis Subsystem
3Flex Service Manual
2-8
Aug 2013
Analysis Subsystem
The analysis subsystem includes the analysis manifold, the sample ports, the P
0
port, and the vacuum
gauge. All, except the vacuum gauge, are located in the heated, insulated portion of the upper cabinet
and mounted on a 1 and 1/4-in. aluminum plate. The vacuum gauge is located below the plate in the
unheated portion of the cabinet (see
). Pneumatically actuated, hard-seal
valves and VCR connections are used to provide enhanced vacuum integrity.
There are four RTDs located in the analysis subsystem:
•
Ambient temperature RTD
: stainless steel, located outside the cabinet to the right and 1 inch
forward of the right front panel
•
Dosing Manifold Temperature RTD
: in a centrally located block connected to the analysis
manifold plumbing
•
Port RTD
: located in the sample port mounting block on the top of the base plate
•
Heater RTD
: attached to the resistive heater element
Sample Ports
Po Port
