Inlet Flange Connection - Agilent Technologies VacIon Plus 800 Manual Del Usuario

Instructions for Use

Inlet flange connection

The pump should be mounted allowing a sufficient clearance for installation and
removal of the high voltage connector.
The pump should be kept sealed with its pinch-off tubulation until it is ready for the
connection to the vacuum system. This avoids the accumulation of dust and other
undesirable materials. Before breaking the pinch-off seal, consult the inspection
procedure (see the previous paragraph).
Vent the ion pump by opening the pinch-off tubulation in a clean area free from
smog, dust, pollen, etc. Venting with dry nitrogen gas is strongly recommended.
This can be done by placing a clean polyethylene bag over the ion pump flange.
Small pumps can be completely placed inside of the bag. Put a pair of pliers inside
the bag, too, and purge the bag with clean, dry nitrogen for several minutes; then
handle the pliers from outside the bag in order to break the pinch-off.
Do not open the pinch off-seal with a saw or grinder. These methods will cause
CAUTION
metal particles to be drawn into the pump by the in-rushing air as the pump is
opened.
The pinch-off seal is extremely sharp. Be careful when opening. Watch your
WARNING
fingers.
Use appropriate procedures to maintain the clean condition of the pump and
vacuum system.
Unscrew the main flange bolts and lift the blank flange. Remove the copper gasket
plate, that must not be reused. Some particles of copper oxide may adhere to the
outer edge of the flange gasket. Be careful not to allow them or any other foreign
materials to fall into the pump.
198 Agilent VacIon Plus 800 User Manual