Head
GA10218_0101 - 5/2002
⏐
66
The PhoeniXL
300 Modul
allows additionally the settings for the forepump (
oil sealed or dry) and selectable pumping speed for the forepump.
Softkey 2:
↓
The entry of the nominal pumping speed of the partial flow pump can be
decreased. The minimum pumping speed is 4m
3
/h.
Softkey 3:
↓
Decrease Quick-pump time. The quick-pump time defines whether and
how long valve V10 of the partial flow block is opened. (For detailed des-
criptions please refer to the operating instructions “GA 10.277” of the par-
tial flow sytem.)
At T
Q
= 0 seconds valve V10 will not be open for the time being. This sel-
ection is recommended for large volumes and dirty objects.
At T
Q
= endless valve V10 will open when pressing start. At an inlet pres-
sure p1 < 15 mbar the PhoeniXL switches to measurement mode and
display leak rates. This is recommended if it is acceptable to wait for a
while until measurement mode is reached and leak rate reading at high
inlet pressures are not needed.
With times between 0 and endless V10 is opened and the leak detector
tries to reach a inlet pressure of less than 15 mbar within this time T
Q
.
When T
Q
has gone by V10 is closed and the PhoeniXL switches to mea-
surement mode (Helium/Hydrogen comes through the orifice of the partial
flow valve block).
Softkey 4: Changing behavior of the valve V8 of the partial flow system
Closed: In partial flow mode valve V8 (see GA.10.277 partial flow system)
switches dependent on the inlet pressure
Open: Valve V8 stays open, even whwn the inlet pressure is low enough
Softkey 5: ?
Help text.
Softkey 6:
↑
Increase the pumping speed of the partial flow pump. The entry of the
nominal pumping speed of the partial flow pump can be increased. The
maximum pumping speed is 80 m
3
/h. Default setting 25 m
3
/h
Softkey 7:
↑
Increase of the quick-pump time up to the maximum.
