Testing Performance 2
6000 X-Series Oscilloscopes Service Guide 29
To verify DC vertical gain accuracy
This test verifies the accuracy of the analog channel DC vertical gain for each
channel.
In this test, you will measure the dc voltage output of a precision source using the
oscilloscope’s Average - Full Screen voltage measurement and compare the results
with the multimeter reading.
1 Press [Save/Recall] > Default/Erase > Factory Default to recall the factory default
setup.
Table 6 DC Vertical Gain Accuracy Test Limits
Models Test Limits Notes
6000 X-Series ±2.5% of full scale • Full scale is defined as 16 mV on the 1 mV/div range.
• Full scale on all other ranges is defined as 8 divisions
times the V/div setting.
Table 7 Equipment Required to Verify DC Vertical Gain Accuracy
Equipment Critical Specifications Recommended Model/Part
Precision Source DC voltage of -5.5 V to 35.5 V, 0.1 mV resolution Keysight B2912A/B2962A
Digital multimeter Better than 0.01% accuracy Keysight 34401A/34461A
50 Ω BNC Cable (qty 2) BNC - BNC, 48” length Keysight 8120-1840
Adapter (qty 2) BNC (f) to banana (m) Keysight 1251-2277
BNC Tee BNC tee (m) (f) (f) Keysight 1250-0781 or Pomona 3285
Shorting cap BNC Keysight 1250-0774
Blocking capacitor Note: if a BNC blocking capacitor is not available use
an SMA blocking capacitor.
Keysight 11742A +
Pomona 4289 +
Pomona 5088
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