Agilent Technologies 9191610, User Manual

Page: 83 / 98

Technical Information
Bakeout Operation
5
VacIon Plus 300 pumps User Manual / 87-900-103-01 (H) 83/98
4
As the pump and system cool down to room temperature, a drop
in pressure should be observed.
Note that the ion pump can be also baked when switched off, into an
external turbo pump through a bakeable isolation valve.
Bakeout of Vaclon Pump with the Integral Heaters
1
The integral heaters are to be powered with the appropriate
voltage. (Please refer to the inscription on the heaters to apply
correct voltage).
2
The integral heaters are designed to provide a temperature of
250 °C to 300 °C when the pump is wrapped in a 3-fold
aluminium foil.
NOTE
A three-layer foil wrapping is advisable and sufficient to achieve full
bakeout/regeneration if the standard European heaters (230 Vac) are operated
at 240 Vac, thus preventing overheating.
3
Bakeout the VacIon pump for 24 hours. If the pump is used in
heavy gas load applications, it is recommended to bakeout the
pump for a longer period.
4
Wait until the pump cools down to room temperature and
recovers its base pressure before using it in the application.
WARNING! Do not touch the pump during the heating and cooling phases. The high
temperature may cause serious damage.