RSA-G2 Getting Started Guide Page 37
Connecting the Test Station Ports
The ports and connections on the rear of the RSA-G2 are used to connect various components of the sys-
tem to the instrument. This section describes these ports. All instructions are based on viewing the
instrument from the rear. Refer to the Figure 20
as you make the connections.
Figure 20 Gas ports on rear of RSA-G2.
• OVEN PURGE: Provides dry gas input to the oven. The gas is circulated throughout the oven in order
to maintain positive pressure and minimize frost when using the LN2 Controller.
• AIR inlet: Connected to the (external) air dryer. This port is used to supply dry air to the oven, motor,
transducer air bearings, and throughout the test station. The air supply pressure should be 80 to 90 psi
(0.55 to 0.6 MPa).
• N2 / GAS inlet: Connected to an external nitrogen (or other) inert gas supply. This port supplies nitro-
gen or another inert gas to the oven, thus allowing the gas to be used as the heating medium. Inert gas
is used to keep a polymer sample from oxidizing and degrading. The gas supply pressure should be
70 to 125 psi (0.48 to 0.86 MPa).
• GUN HEATERS: This is connected to the oven to provide pneumatic output from the test station to
the oven. This port supplies the oven with air or N2 gas.
Oven purge
Air inlet
Gas inlet (nitrogen)
Gun heaters
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