Replacing The Capillary; Omnistar - Pfeiffer Vacuum OmniStar GSD 300 O1 Operating Manual

8.2 Replacing the Capillary

8.2.1 OmniStar™

Preconditions
•
Unit switched off
Required tools / material
• Tube cutter (recommended →
or knife file
•
Wrench ¼" (6.5 mm)
•
Supplied Allen wrench
•
Steel capillary, new ferrule, possibly nut (→
Preparing the new capillary
Bend the capillary
until it breaks
BG 805 071 BE (9904) GSD300.om
2
36)
2
36)
Define length (tube length +
10 cm + length required for
measurement point)
Make two opposing
small indentations
Max. depth of
indentations 0.5 mm.
Do not finish the
point of break
(capillary gets
clogged)
Removing the old capillary
Detach the capillary at the measuring point
Unlock the cover
Remove the cover
Hot surface.
First allow the
gas inlet to cool
off.
Remove the
insulation cover
Open the cover
Troubleshooting 29