Functions And Features; Saving And Recalling From The Front Panel - ILX Lightwave LDX-32420 User Manual

5
C H A P T E R
F F
UNCTIONS AND EATURES
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This chapter introduces you to the LDX-32420 High Power Precision Current
Source functions and operating features such as event triggering, analog
modulation of laser injection current, and Save and Recall.

Saving and Recalling from the Front Panel

For applications where you might need to alternate between particular instrument
configurations, the LDX-32420 Current Source offers a unique SAVE and
RECALL feature. The SAVE feature allows you to easily store all front panel
settings for any given instrument configuration. These settings, that are stored in
one of ten memory bins, can be retrieved at any time with the RECALL function.
This saves setup time, and it reduces the chance of setup error for tests that are
periodically repeated. For example, using the configuration described in Chapter
2 where the Current Source is operating in Constant Current mode, the instrument
parameters saved by using the SAVE function would be Constant Current Mode,
10A range, a limit setpoint of 8A, a laser current setpoint of 7.5A, and Display
Mode I. Once this setup is saved, the LDX-32420 Current Source may be
configured for another unique setup. You can recall the original setup for the first
experiment any time using the RECALL function.
To enter the SAVE/RECALL mode, press the SELECT switch in the PARAMETER
section until the SAVE indicator LED becomes lit and the unit displays the SAVE
"bin" on the display. If another bin number is desired, press the SET switch and
rotate the adjust knob until the desired bin number is displayed. Releasing the
SET knob for three seconds completes the SAVE operation and all of the
instrument parameters are saved to the indicated bin number as they appear on
the front panel.
To recall a previously saved instrument setup, press the SELECT switch until the
RECALL indicator led becomes lit. The instrument will display a RECALL "bin"
number on the display. If you desire to change the RECALL bin, press the SET
switch then rotate the adjust knob until the desired bin number is displayed.
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LDX-32420
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