106 . Clarus 590 GC User’s Guide
Cleaning the 5-µL and 50-µL Syringe Plungers
The 5-µL and 50-µL syringe plungers should be cleaned regularly, since insolubles can build up and cause
friction.
To clean the syringe plunger:
1. Remove the syringe using the procedure in the preceding section.
2. Remove the plunger from the syringe barrel.
3. Wipe the plunger with a tissue soaked in an appropriate solvent. Replace the plunger.
4. Pull and expel the same solvent through the barrel several times.
5. Replace the syringe using the procedure in the preceding section.
Only syringes distributed by PerkinElmer should be used with the Clarus GC. Plungers are not
interchangeable from syringe to syringe.
From the Tasks tab touch the Config button.
The Config button provides a quick link to the configuration settings.
Check the Auto Resume checkbox to allow the autosampler program to automatically resume where it left
off should a power failure occur.
Auto Resume should not be used if you have an FID or FPD configured with PPC, since the flame will have
been
extinguished during a power failure.
The Clarus GC allows you to vary the length of time the plunger pauses at the top-of-stroke when acquiring
samples. In addition, the plunger speed also slows down during injection. The more viscous the sample,
the higher you should set this value. To optimize reproducibility you should experiment with different
values.