LEYBOLD 250000V01, Operating Manual

Page: 67 / 112

Operation
GA10218_002_C0 - 10/2016 - © Leybold GmbH 67
Vacuum ranges
Main menu > Settings > Vacuum settings > Vacuum ranges
With this menu you can adjust different modes concerning the activity of leak
detection. This setting is only active in vacuum mode (see Chapter 3.5).
Softkey 2: Immediately
The inlet port will be vented immediately after pressing the STOP button.
Softkey 3: After 1 second
The inlet port will be vented with a time delay of 1 second.
Softkey 4: After 1.5 seconds
The inlet port will be vented with a time delay of 1.5 second.
Softkey 5: ?
Help
Softkey 6: after 2 seconds
The inlet port will be vented with a time delay of 2 second.
Softkey 7: No venting
The inlet port cannot be vented with the STOP button.
Softkey No. 2: GROSS only
In this mode the PHOENIX L300i remains at the inlet flange after falling
below 15 mbar. When the pressure is increasing over 15 mbar the PHO-
ENIX L300i switches automatically into evacuation mode. The smallest
detectable leak rate is 1 ·10
-8
mbarl/s.
Softkey No. 3: FINE only
In this mode the PHOENIX L300i remains after falling below 0,2 mbar at
the inlet flange. Valve V1 will be closed. When the pressure at the inlet
flange is increasing > 0.2 mbar the PHOENIX L300i switches immediately
into evacuation mode. The advantage of FINE only is that while this mode
is running no valve will switch and the PHOENIX L300i has a high
pumping speed.
Softkey No. 4: GROSS only 920 Hz
In this mode the turbo pump of the PHOENIX L300i works at reduced
speed. Therefore the smallest detectable leak rate is 3 ·10
-9
mbarl/s. This
function can be used to replace the L200 in Gross only mode equivalent
Taste No. 5: ?
Help text
Softkey No.6 Partial flow enable
Vacuum ranges PHOENIX
L300i DRY/PHOENIX L300i
MODUL