User`s manual

Page 12 · 4200-DR Series LaserSource User’s Manual
Settings and Menus
All parameters of the 4200-DR can be viewed and changed within the menu.
The menus are constructed with the most used parameters first. To change any
setting, press Menu to enter the menu then rotate the knob to select the
parameter to change. Press the knob to begin changing the value. As a visual
indication that you are in edit mode, you will see an asterisk appear next to the
value. Once you have made your change, press the knob or Menu button to
store the value. Pressing the Menu button will store and exit the menu, while
pressing the knob will store the value but leave you in the menu to make
additional changes.
Some settings are contained inside a sub menu, such as communications
settings. To access the sub menu, simply press the knob to enter the sub menu
when its name is displayed.
Menu
Description
Factory
Default
Root Menu
Top Level Menu
Mode
As described in the Control Modes section above,
the unit offers five control modes: Io (ACC), Io
HiBW (ACC), Im (AMC), Po (APC), and Vf (AVC).
Change this setting to select a new mode.
Io (ACC)
Range
Selects the high or low current range.
High
Io Res
Resolution of the Io set point and measurement.
Available options are dependent on the range of
the instrument.
Depends
on model
Io Limit
This setting controls the maximum amount of
forward current that can be delivered to the laser
diode. This limit is implemented in hardware for
high speed response. For more information about
limits, see Hardware and Software Limits below.
Maximum
Im Limit
This setting controls the maximum amount of
monitor photodiode current the unit will allow. This
limit is implemented in software. For more
information about limits, see Hardware and
Software Limits below.
Maximum
Po Limit
This setting controls the maximum amount of
monitor photodiode power the unit will allow. This
limit is implemented in software. For more
information about limits, see Hardware and
Software Limits below.
Maximum