■
Press the front-panel Vertical button that corresponds to the channel
you are to confirm.
■
Set the generator output to 0 V.
■
Move the test hookup to the channel you selected.
b. Turn on the measurement Mean for the channel:
■
From the tool bar, touch Measure and select the Ampl tab, More,
and then touch Mean to measure the mean of the current channel.
■
Press the X (Close) button.
c. Set the vertical scale: Set the vertical Scale to one of the settings in the
following table that is not yet checked.
Table 11: Offset accuracy
Scale setting Position setting
(Divs)
Offset setting
6
Generator setting Accuracy limits
10 mV -5 +0.45 V +500 mV +495.75 mV to +504.25 mV
5 -0.45 V -500 mV -504.25 mV to -495.75 mV
20 mV -5 +0.4 V +500 mV +494.75 mV to +505.25 mV
5 -0.4 V -500 mV -505.25 mV to -494.75 mV
50 mV -5 +0.25 V +500 mV +491.75 mV to +508.25 mV
5 -0.25 V -500 mV -508.25 mV to -491.75 mV
100 mV -5 +2.0 V +2.5 V +2.474 V to +2.526 V
5 -2.0 V -2.5 V -2.526 V to -2.474 V
200 mV -5 +1.5 V +2.5 V +2.464 V to +2.536 V
5 -1.5 V -2.5 V -2.536 V to -2.464 V
500 mV -5 0 V +2.5 V +2.434 V to +2.566 V
5 0 V -2.5 V -2.566 V to -2.434 V
d. Display the test signal:
■
From the tool bar touch Vertical and then touch Position.
■
Use the keypad to set vertical position to the setting listed in the
table.
■
Touch Offset.
■
Use the keypad to set vertical offset to the positive-polarity setting
listed in the table for the current vertical scale setting. The baseline
level may move off screen.
■
Set the generator to the level and polarity indicated in the table for
the vertical scale, position, and offset settings you have made.
6
Set as precisely as the instrument's offset resolution permits.
Performance verification (MSO/DPO70000C, MSO/DPO70000DX, and DPO7000C series)
MSO70000C/DX, DPO70000C/DX, DPO7000C, MSO5000/B, DPO5000/B Series 225
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