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Optical Sampling Modules
c.
Select
Vertical
.
d.
Close the Hist Setup dialog box.
Test
Follow this procedure to make the Dark Level and Vertical Equivalent Optical
Noise checks:
1.
In the Utilities menu, select
System Properties
. Check that the Mainframe
Current On-Time is greater than 0.33 hours (20 minutes).
NOTE.
The values in System Properties dialog box do not update while the dialog
box is open. Close the dialog box and reopen it to get updated values.
2.
Close the System Properties dialog box.
3.
Select
Utilities > Compensation
.
4.
Make the following selections in the Compensation dialog box:
a.
Under Select Action, select
Compensate
.
b.
Select
Module
in the pull-down menu.
c.
Select
Ch1
.
5.
Click
Execute
, and then click
OK
to the message box that appears.
6.
Wait until the compensation is completed (hour glass cursor reverts back to
arrow cursor). It is recommended that you store this compensation result in
the module as the Stored User values. To store the compensation results in the
module, do the following procedure:
a.
In the Select Action section of the Compensation dialog box, select
Save
.
b.
In the Storage section, make sure
User
is selected.
c.
Click the
Execute
button. This saves the compensation results in the
module.
7.
Click
Close
to close the Compensation dialog box.
8.
In the Vert Setup dialog box, click the
Optical >>
button. This displays
fi
elds
for setting up the vertical optical parameters.
9.
Select a bandwidth or
fi
lter in the Vert Setup dialog box. Refer to the
following table for available settings.
10.
In the Vert Setup dialog box, click the
Dark Level
compensate button.
DSA8300 Performance Veri
fi
cation
221
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Страница 213: ...Electrical Sampling Modules Figure 21 Setup to measure Power in DSA8300 Performance Verification 195 ...