GE MOA 280i, Руководство по эксплуатации и обслуживанию

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GE Analytical Instruments ©2006 DLM 14291 Rev. A
4-9
Step 6 - Connect Power Cord to Vacuum Pump and Turn On Pump Power Switch
Locate the pump power cord and connect one end to the power cord inlet on the
side of the pump. Turn the pump power switch on the other side of the pump to
the ON position.
Connections to NOA
All of the connections for gases, the vacuum pump and outputs are at the back of
the NOA (Figure 4-3). Place the NOA on a bench in a position so there is access to
the back of the analyzer. Connect the power cord to the analyzer and plug the
cord into an AC Outlet.
Vacuum Pump Power Cord and Vacuum Hose
Plug the female plug on the power cord from the vacuum pump into the socket
labeled “Vacuum Pump” on the back of the NOA. In the center of the back panel is
a protective cap on the exhaust of the NOA. The cap protects the photomultiplier
tube from exposure to light during shipping and anytime the vacuum hose is
removed from the analyzer.
Remove the protective cap from the exhaust port of the NOA. Anytime the vacuum
hose is removed from the NOA this cap should be replaced. Carefully thread the
1/2" Swagelok nut on the vacuum hose to the exhaust fitting. Place a 13/16"
wrench on the fitting on the NOA and use a 7/8" wrench to fully tighten the nut.
This will require some force to get a good seal.
Vacuum Test
Once the vacuum pump has been connected, test that all connections are tight by
performing a vacuum test. Make sure the power switch on the vacuum pump is in