Automatic Liquid Sampler and Injector
Syringes
Released: March 2004 6850 Series II GC User Information page 222 of 256
Check for a sticky plunger. Slide the plunger of the syringe up and down a few
times. It should move smoothly—without sticking or binding. If it is sticky,
remove the plunger, and clean it with solvent. For more information, see your
Sampling Techniques Handbook.
Installing a syringe
To install a syringe:
1. Disconnect the sampler or injector cable from the GC and lay the sampler
or injector on its back on a flat surface.
2. Open the door.
3. Slide the syringe carriage up (or down) until the syringe is accessible. See
Figure 42.
4. Pass the syringe needle through the hole in the needle support foot.
5. Align the syringe barrel with the flange guide and syringe clip and press
the syringe into place, keeping the needle in the hole of the needle support
foot.
6. Close the syringe latch by swinging it clockwise.
Figure 42. Installing the syringe
7. Move the plunger carrier loop down and tighten the plunger screw.
Flange
Plunger carrier loop
Plunger screw
Flange guide
Syringe latch
Syringe clip
Needle support foot
Slide
Syringe carrier
Plunger
Syringe
Needle
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