Testing Performance 2
2000/3000 X-Series Oscilloscopes Service Guide 35
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 + 0.5% full scale]
For the DC vertical gain accuracy test limits, see Table 6 on page 30.
1 Press [Save/Recall] > Default/Erase > Factory Default to recall the factory default
setup.
2 If you are testing a 2000 X-Series oscilloscope, set the probe attenuation to 1:1
on the analog channel you are testing (for example, [1] > Probe > Probe; then,
turn the Entry knob to select 1.00 : 1).
Table 10 Equipment Required to Verify Dual Cursor Accuracy
Equipment Critical Specifications Recommended Model/Part
Oscilloscope Calibrator 14 mV to 35 Vdc,
0.1 V resolution
Fluke 5820A
Digital multimeter Better than 0.01% accuracy Keysight 34401A
Cable BNC, Qty 2 Keysight 10503A
Shorting cap BNC Keysight 1250-0774
Adapter BNC (f) to banana (m) Keysight 1251-2277
Adapter BNC tee (m) (f) (f) Keysight 1250-0781 or Pomona
3285
Blocking capacitor Keysight 11742A +
Pomona 4288 +
Pomona 5088
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