
Chapter 5 Optimizing Instrument Settings
5-32 PerSeptive Biosystems
5
For information on setting Instrument Settings for Automatic
Control mode, see Section 6.6.2, Setting Instrument Settings
for Automatic Control Mode.
Table 5-9 Automatic Control Parameters—Laser
Parameter Description
Automatic Laser Intensity Adjustment
Use Automated Laser
Intensity Adjustment
Enables or disables automated laser intensity adjustment.
For more information, see “Laser” on page 6-37.
Minimum and
Maximum
Controls the minimum and maximum laser intensity when
Automated Laser Intensity Adjustment is enabled. To
achieve a fixed setting, use the same values for Min and
Max.
NOTE: To automate laser adjustment, you must specify
adjustment criteria as described in “Setting spectrum
acceptance and laser adjustment criteria” on page 6-40. If
you do not, the laser is not adjusted. The mid-range
setting between the minimum and maximum is used.
Step Size Sets the increments the system uses when automatically
adjusting the laser intensity. Maximum step size cannot
exceed the difference between the minimum and
maximum laser intensity set above.
Prescan Mode Enables or disables Prescan mode. Prescan mode
determines the laser setting within the specified range to
meet the Signal Intensity criteria. There are two Prescan
options available:
• Prescan at First Search Pattern Position Only
• Prescan at Each Search Pattern Position
For more information, see “Prescan mode” on page 6-49.
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