Emerson Rosemount 370XA, System Reference Manual

Page: 186 / 209

370XA Gas Chromatograph System Reference Manual
APRIL 2014 7P00370-H01
6 - 49
7. Remove and dispose of the four lower o-rings. If the o-rings
stick inside the base plate, use a short length of 1/16th
stainless tube to work the o-ring out.
8. Place a new o-ring into each of the four tubing holes in the
base plate.
9. Insert a new spacer into each of the four holes in the
baseplate, firmly pushing them down until the o-ring from the
previous step is seated into the bottom. Check that the top of
each of the spacers is protruding the same distance as the
other spacers to ensure each o-ring is seated flat.
10. Place a new o-ring on top of each of the four spacers, loosely
aligning the center hole of the o-ring with the center hole of the
spacer.
11. Place the tube connector over the o-rings and spacers,
ensuring the holes in the cap align with the o-rings and
spacers.
12. Screw in the mounting bolt and hand-tighten.
13. Insert the columns into the connector according to “Column
assignments” on page 6-39 and “Column drawings” on page 6-
39 . Each of the columns has tags that identify their application.
NOTICE
If the connectors are not tightened correctly, there is the potential for a leak. The
tubing must go through both of the two o-rings as shown in Step 1. It is important to
follow the procedure and check the fitting before applying gas to the unit.
14. Push each tube into the fitting so until it stops hard against the
base plate.
15. Apply downward pressure onto the four tubes entering the
fitting and tighten the bolt using the 4 mm hex or allen wrench.