On-Board FastRegen Control Module Programming and Operation Instructions
P/N 8040406
3-15
C
HELIX TECHNOLOGY CORPORATION
-
TI
CRYOGENICS
Extended Purge
The fifth parameter of the REGEN function allows you to extend the purge
time during Full regeneration to ensure the cryopump has been purged of
all contaminants. The extended purge time screen display is shown in
Figure 3-16.
Figure 3-16: Extended Purge Display
Repurge
The sixth parameter of the REGEN function allows you to establish the
repurge time in the event of repurge as shown in Figure 3-17. A repurge
occurs during Full regeneration when the roughing pressure fails to
decrease at a rate of at least 2% per minute.
Figure 3-17: Repurge Display
Last
Next
Clear
MONITOR
REGEN
SERVICE
CONTROL
RELAYS
HELP
oo
ON
-BOARD
®
Enter
1
2
3
4
5
6
7
8
9
-
0
.
EXTD PURGE 10M
Last
Next
Clear
MONITOR
REGEN
SERVICE
CONTROL
RELAYS
HELP
oo
ON
-BOARD
®
Enter
1
2
3
4
5
6
7
8
9
-
0
.
10 MIN REPURGE