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Instructions for Use
Use
The pump can be installed in any position. For convenience, a pump
is usually mounted vertically with the inlet up, or placed horizontally.
Pumps can be supported by the mounting flange in any position.
For detailed information about the pump installation, see the
appendix "Technical Information".
Use
All the instructions for the correct use of the pump are contained in
the control unit manual.
Read the manual carefully before using the pump.
Rough pumping down to 1x10
rapid starting. Roughing with an oil-sealed mechanical pump is not
desirable, but when used, a trap in the roughing line is recommended
to reduce pressure due to water vapor and oils from the mechanical
pump. Be careful to minimize the time that this pump is open to the
system and ion pump, since mechanical pump vapors will start
diffusing into the system at pressures below 1x10
contamination. In systems where oils must be completely eliminated,
turbopump roughing pumps should be used.
Hygroscopic deposits and hydrogen absorption into titanium may
cause starting times to increase with age. During exposure to air, the
deposits of titanium compound absorb water vapor. In subsequent
start ups, pump heating causes release of the water vapor and some
previously pumped hydrogen; thus, the starting time may be
lengthened.
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mbar is recommended for the most
2 l/s Ion Pump User Manual / 87-900-091-01 (E)
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mbar and cause
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