Performance Veri
fi
cation
Check DC Gain Accuracy
This test checks the DC Gain Accuracy of each channel.
1.
Push the front-panel
Default Setup
button to set the instrument to the factory
default settings.
2.
Push the front-panel Horizontal
Acquire
button, then push the bottom-bezel
Average
button, and then push the side-bezel
Average
button, to turn
averaging on.
NOTE.
When using averaging, allow the oscilloscope to acquire all the samples
before taking the measurement.
3.
If necessary, use Multipurpose knob
a
to set the number of averages to 16.
4.
Set the DC voltage source to 0 V, and then connect it to channel 1, as shown.
If using a Fluke 9500 as the voltage source, connect the calibrator head to
channel 1.
5.
Push the front panel button to select the channel to be tested (1, 2, 3, or 4)
6.
Push the bottom-bezel
Probe Setup
button, and then push the
Set to 1X
side-bezel button.
7.
Push the Wave Inspector
Measure
button, and then push the bottom-bezel
Add Measurement
button.
8.
Use Multipurpose knob
a
to select the
Mean
measurement, then push the
side-bezel
OK Add Measurement
button, and then push the
Menu Off
button.
9.
For each Volts/div line in the following worksheet, perform these steps:
a.
Set the channel’s volts/div to the value listed in the worksheet.
b.
Set the DC voltage source output level to the positive voltage listed and
record the Mean measurement as V
pos
.
c.
Set the DC voltage source to the negative level listed, and record the
Mean measurement as V
neg
.
20
DPO2000 and MSO2000 Series Speci
fi
cations and Performance Veri
fi
cation