1-18 Getting Started Model 6220/6221 Reference Manual
Return to Section 1 topics
Disabling the front panel provides the following benefits:
• Allows testing on light sensitive devices.
• Eliminates step-to-step timing jitter for Sweeps, Delta, and Differential
Conductance. Details on “Step-to-step timing jitter” is provided on
page 1-18.
• Increases system speed. Processing time is shortened since readings are
not formatted and displayed.
The front panel can be disabled by pressing the DISP key. The following message
will be briefly displayed before the display shuts off:
FRONT PANEL DISABLED
Press LOCAL or DISP to resume.
As indicated in the displayed message, press LOCAL or DISP to enable the front
panel.
Remote programming – Use the following command to control the front panel:
Step-to-step timing jitter
For Sweeps, Delta, and Differential Conductance, step-to-step timing may jitter as
much as 1ms. This jitter can be eliminated by disabling the front panel as previ-
ously explained.
If the display is disabled while a Sweep, Delta, or Differential Conductance test is
running, a 2-second pause in continuous operation will occur. To avoid this pause,
disable the front panel before arming the Sweep, Delta, or Differential Conduc-
tance test. Keep in mind that remote programming must then be used to arm and
start the test. The front panel keys to arm and start the test are disabled while the
front panel is disabled.
Menus
Many aspects of operation are configured through menus.
A direct access menu can be opened by pressing a single key, and other menus
require that the CONFIG key be pressed before pressing another key.
CONFIG menus
CONFIG > SWP is an example of a key-press sequence. To open the menu,
press the CONFIG key and then the SWP key.
DISPlay:ENABle <b> ‘
‘
‘
Enable or disable the front panel.
<b> = ON or OFF.
Default setting is front panel ON.
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