Agilent Technologies 9191610, User Manual

Page: 73 / 98

Technical Information
VacIon Plus Pump Installation
5
VacIon Plus 300 pumps User Manual / 87-900-103-01 (H) 73/98
Vacuum Evaluation
The ion pump is shipped in an evacuated condition. Before removing
the shipping flange for installation on a vacuum system, it is
recommended that the pump be started briefly to verify vacuum
integrity and proper operation.
To verify the vacuum integrity of the new pump before venting:
1
Connect the pump to the control unit as directed in the
instruction manual of the control unit.
WARNING! The high voltage which is present in the ion pump from the control unit can
cause severe injury or death.
Be sure that the high voltage cable is proper connected to the ion pump and
its power unit. Make sure that the pump is well grounded.
2
With the main power switch in the OFF position, plug the control
unit into a suitable power source.
3
Turn the power to ON.
4
Observe the reading for an indication of one of the following
conditions:
a
If the pump is free of leaks and is at a low pressure, the
pressure indication shall within 10 minutes fall to or below
the 10
-8 mbar range as the volume of gas is pumped.
b
If the pressure inside the pump is at or near atmospheric
level, an arc may strike inside the high voltage feedthrough
giving a popping sound and the pump current will fluctuate.
If this occurs, turn the power OFF immediately.
5
If the vacuum integrity has been lost, the pump should be leak-
checked with a mass spectrometer leak detector before
installation on the system.