Basic HTML Version
Appendix B
5/20/2009
25
50
51
52
53
FD1
54
FD2
55
56
57
58
59
60
61
62
Capsule+sleeve
63
LFB Atropine
64
Capsule+sleeve
17.3.4.4. Press “Start Run”
17.3.4.5.Loading the Sample Wheel into the Injector Box
This mode opens the ADF and C valves allowing helium to
enter the injection box and minimize air in this area while
installing the sample wheel for the 64 sample automatic
injector. The pressure will build up and eventually
equilibrate to the helium tank pressure if the instrument is
left in this mode for a long period of time. This is not
recommended, therefore, do not delay carrying out the
following steps:
17.3.4.5.1. Open the manual purge valve on the injector
box (right side, behind the P valve) to relieve
the internal pressure.
NOTE: The injector
housing should not be opened while
pressurized. Vent the housing with the
manual purge valve prior to opening the lid.
17.3.4.5.2. Loosen the 4 cover screws and lift the lid.
Remove the empty wheel from the sample
chamber.
17.3.4.5.3. Vacuum out, or blow out with canned air, any
material that might be in the box from the
previous run (Loose material from the previous
batch can contaminate samples, blanks and
standards).
17.3.4.5.4.
Insert the loaded sample wheel with the locking
pin in place. Tilt the wheel slightly, line up the
scribe mark on the wheel with the ratchet in the
housing, lower the wheel and make sure that it
is properly seated. Place the locking pin in the
center hold. Check that the o-ring of the cover
is clean and well seated in the groove before
closing the cover.