M
AINTENANCE
/S
ERVICE
ProStar 400 AutoSampler
31
WARNING:
MOVING PARTS
Moving parts and sharp needle. Keep hands clear.
•
Place
an
uncapped
vial in the tray.
•
Program an injection from that vial with injection volume 0 µL
in case of partial loopfill injections or a loopvolume of 0 µL in
case of flushed loop injections. Press START and
disconnect the power supply as soon as the needle is in the
vial.
•
Loosen needle connection nut (Figure 8) that connects
PTFE tubing to sample needle.
•
Move needle arm down manually.
•
Remove sample needle by pulling it out of its fitting with the
PTFE tubing that usually sticks to the needle.
•
Put in new needle (watch the air seal around the needle).
•
When needle connection tubing needs replacement, loosen
the nut that connects the tubing to the injection valve.
•
Cut the appropriate length of a 0.25 mm ID tubing taking
care that cuts are made perfectly rectangular to avoid dead
volumes.
•
Connect tubing to needle.
•
Connect loose end of needle connection tubing to port 2 of
injection valve (use a Rheodyne ferrule
.
). Do not tighten
excessively; it may close the tubing.
•
Check needle penetration depth and adjust if necessary.
•
Connect main power supply.
•
CLOSE KEYBOARD COVER.
Summary of Contents for ProStar 400
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