Keysight Technologies InfiniVision 6000L Series, Service Manual

Page: 29 / 100

Testing Performance
2
6000L Series Oscilloscopes Service Guide 29
To verify voltage measurement accuracy
This test verifies the accuracy of the analog channel voltage measurement for
each channel (DC Vertical Gain Accuracy and Dual Cursor Accuracy
specifications). In this test, 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.
Test limits: ±2.0% of full scale ±1 LSB*
• On 500 MHz and 1 GHz models, full scale is defined as 32 mV on the 2 mV/div
range.
• On 100 MHz models 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.
*1 LSB = 0.4% of full scale
1 Set up the oscilloscope.
a Adjust the channel 1 position knob to place the baseline at 0.5 major division
from the bottom of the display.
b Set the Volts/Div setting to the value in the first line in Table 7 .
Table 6 Equipment Required to Verify Voltage Measurement 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
Blocking capacitor Keysight 10240B