Gilson VERITY 1910 MS User Manual page 52

Clean the vac‑chip Flange
The following procedure is the recommended cleaning procedure for your vac-chip flange.
NOTICE
prOCeDUre
1. clean the vac-chip flange, especially the cone region (Figure 23) using HPLc-grade water
followed by HPLc-grade acetonitrile and HPLc-grade methanol.
2. It is recommended that a lint free cloth or cotton swab is used to clean the cone region
with each solvent, rather than immersing the whole flange.
3. Repeat until the cone region is clean and then flush the cone with methanol to remove any
fibers.
4. Place the vac-chip flange in an oven at 40°c for 30 minutes to dry it completely.
● If no oven is available, flushing with nitrogen and leaving covered in tissue should be
sufficient.
5. once dry, remove the flange from the oven and flush with clean, dry nitrogen.
52
MAInTEnAncE
The vacuum screws have been specially made for the VERITY 1910 MS Detector. Do not
substitute these screws unless they have been provided by Gilson.
The vac‑chip is fragile. Always handle it with extreme caution.
Vac-chip
Flange
Figure 23
vac‑chip™ Flange and Cone Region
|
VERITY® 1910 MS DETEcToR
Entrance
cone