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5 Operation of the
PhoeniXL
The PhoeniXL is switched on by pushing the mains switch (Please refer to
Chapter
3.2.1
). After about 2 minutes the run-up procedure is finished; the
unit is in Stand-by-mode and ready to measure.
When using the PheoniXL
300 Modul
an additional forevacuum pump (dry or
wet version) has to be connected to the forevacuum connection (DN25
KF) on the side or the bottom.
Please connect the part to be tested to the inlet port and press START.
The PhoeniXL starts to evacuate the part. The evacuation time depends
on the volume of the test part. During evacuation the screen shows the
inlet pressure online.
Once the pressure of 15 mbar (11 Torr or 1500 Pa) is reached the unit
switches to measurement mode. The corresponding leak rate is dis-
played. For further explanations of the screen please refer to
5.4
.
The displayed leak rate corresponds to the helium background concentra-
tion in the part under test. Since the PhoeniXL continues to pump down
the part this background leak rate will further reduce. As soon as the leak
rate is low enough in respect to your requirements you may start spraying
Helium or Hydrogen to search for possible leaks.
When the measurement is finished please press STOP and hold the but-
ton a few seconds to vent the part under test.
5.1 Display
The display is used to either show leak rates or program specific set-ups
and get information by means of the software menu (Please refer to Chap-
ter
6
). In addition messages and maintenance instructions are displayed
on the screen (Please refer to Chapter
8
).
5.2 The Screen in Run-Up Mode
In run-up mode the display shows:
Speed of the turbomolecular pump
Forevacuum pressure
State of emission
Active filament
A bar graph which shows the run-up progress
If the display is too bright or too dark you can change the contrast. Please
see Chapter
6.2.4
. During run-up phase the menu button can be pushed
(see Chapter
4.1.2.5
) to get to the selection menu.
