Vacuum Evaluation - Agilent Technologies VacIon Plus 800 Manual Del Usuario

Instructions for Use

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 to briefly start the
pump in order to verify vacuum integrity and proper operation.
To verify the vacuum integrity of the new pump before venting:
1 Connect the ion pump to the control unit as described in the instruction manual
of the control unit.
The high voltage which is applied to the ion pump by the control unit can
WARNING
cause severe injury or death. Be sure that the high voltage cable is properly
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 Turn the ion pump on by following the instructions on the control unit manual.
Observe the reading on the unit display for an indication of one of the following
conditions:
a
b
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.
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If the pump is free of leaks and is at a low pressure, the pressure indication
shall quickly fall to or below the 1E-8 mbar range as the volume of gas is
pumped.
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.
Agilent VacIon Plus 800 User Manual