Chapter 4: Testing Performance
Offset Accuracy Test
44
6
Repeat step 5 for the remaining vertical sensitivities for channel 1 in the Zero Error
Test section of the Performance Test Record.
7 Press Default Setup, then turn off channel 1 and turn channel 2 display on.
8 Configure the scope to measure V avg on Channel 2 as follows:
a Pull down the Utilities menu and select Acquisition. When the Acquisition Setup window
is displayed, enable averaging and set the # of averages to 256.
b Change the vertical sensitivity of channel 2 to 5 mV/div.
c Click the V avg measurement icon on the left side of the screen.
d When the Enter Measurement Info window is displayed, ensure that the Vavg function
is set up as follows and then click OK:
Source = Channel 2
Measurement area = Entire Display
9
Press the Clear Display key on the scope, wait for the #Avgs value to return to 256 and
then record the scope’s mean V avg reading in the Zero Error Test section of the
Performance Test Record.
10 Repeat step 9 for the remaining vertical sensitivities for channel 2 in the Zero Error
section of the Performance Test Record.
11 Repeat steps 7 through 10 for channels 3 and 4.
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