Technical data

Testing Performance 2
4000 X-Series Oscilloscopes Service Guide 39
To verify dual cursor accuracy
This test verifies the dual cursor accuracy for each analog
channel.
This test is similar to the test for verifying the DC vertical
gain, except you will measure the dc voltage output of an
oscilloscope calibrator using dual cursors on the oscilloscope
and compare the results with the multimeter reading.
Dual cursor accuracy test limits: ±[DC vertical gain accuracy
+ 0.42% full scale]
For the DC vertical gain accuracy test limits, see Table 6 on
page 33.