Automatic Cleaning And Balance Function - GE Optica Operator's Manual

Automatic Cleaning and
Balance Function
Table 4-6: Automatic Cleaning and Balance Functions
Item
AUTO Heats the mirror and balances the optics.
First cools the mirror to develop a thick dew/frost
PACER
layer, then heats and balances the optics.
AUTO-D Heats the mirror and balances the optics.
First cools the mirror to develop a thick dew/frost
PACER-D
layer, then heats and balances the optics.
Programming the VGA Optica
Note: For Optica Analyzers with earlier versions of software, see
Appendix F.
Optica Analyzers with version XXX software have been upgraded to
include the ability to program the PACER self-cleaning and
rebalancing cycle to run once per day at a preset time. This is referred
to as a Clock Time Interval. When the unit is programmed in this
manner, the front panel PACER softkey is disabled. The Elapsed Time
Interval initiates the PACER at a preset time after the last PACER was
run. The automatic balance cycle will always run upon power up of
the analyzers.
To program the Automatic Cleaning & Balance Function on the
Optica VGA monitor:
1. Make sure the internal clock of the Optica has the correct time.
a. From the main screen enter Menu, then More, then Set Time
and Date.
b. Highlight the Date and Time fields and use the Keypad and
Softkeys to set the correct time.
2. Set the Time Programmed Balance Cycle.
a. Enter Menu and go to the Automatic Balance Section.
b. Open the Type pull down menu and choose one of the four
selections (see Table 4-6 below).
Function
Note: The PACER function will provide more thorough cleaning than
the AUTO function because it first develops a thick dew/frost
layer into which soluble contaminants dissolve. When heated,
some of the contaminants are flash-evaporated and the
remaining residue accumulates in clusters, resulting in an
approximately 85% cleaner surface. The PACER cycle
generally takes longer to complete.
January 2006
Type
Elapsed Time Interval
Elapsed Time Interval
Clock Time Interval
Clock Time Interval
4-9