Description of the Menu 61
iina74e 06.fm technical handbook(1408)
6.6.1.6 Machine factor
• Main Menu > Settings > Vacuum settings > Machine factor
The machine factor takes into account that an additional external pump set is used.
Based on an internal calibration only, all measured leak rate would be measured too
small. The measured leak rate is multiplied with the machine factor and the result is
displayed. This factor is only used for vacuum measurement modes (not for sniff
mode). See Chapter 4.2.2.7 Numerical Entries for the description of the entry.
Adjust the machine factor to the value 400 when using the helium sniffer QUICK
TEST .
6.6.1.7 Booster TMP mode
• Main Menu > Settings > Vacuum settings > Booster TMP mode
6.6.2 Zero & Background
• Main Menu > Settings > Zero & Background
The kind of background suppression inside the UL5000 and the function of the Zero
button can be selected.
Softkey 3: Off
Booster TMP will not start.
Softkey 7: automatic
Booster TMP starts automatically when evacuating.
Softkey 3: Background suppression
Refer to Chapter 6.6.2.1
Softkey 4: Calculate inlet area background
Refer to Chapter 6.6.2.2
Softkey 7: Zero
Refer to Chapter 6.6.2.3
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