6 | Operation
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UL3000-Fab-Operating-instructions-iina73en1-08-(1910)
ð
The internal background is created from the remaining gas, which has not yet
been pumped out. Very clean systems show a background in the range of 1 x
10
-11
mbar l/s. Under normal conditions there is a background of 1 x 10
-10
mbar l/s or 1x10
-9
mbar l/s. For the mathematical treatment of the internal
background, see "Change background suppression [
69]”.
4
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Summary of Contents for ULTRATEST UL3000 Fab
Page 2: ...INFICON GmbH Bonner Strasse 498 50968 Cologne Germany ...
Page 133: ...INFICON Appendix 11 UL3000 Fab Operating instructions iina73en1 08 1910 133 140 ...
Page 134: ...11 Appendix INFICON 134 140 UL3000 Fab Operating instructions iina73en1 08 1910 ...
Page 138: ...Index INFICON 138 140 UL3000 Fab Operating instructions iina73en1 08 1910 ...
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