Technical data

48 6000 Series Oscilloscopes Service Guide
2 Testing Performance
digital high levels. Record the oscilloscope calibrator
voltage in the Performance Test Record (see page 70).
Before proceeding to the next step, make sure that you
have recorded the oscilloscope calibrator voltage levels for
each of the threshold settings shown in Table 7.
9 Use the 8- by- 2 test connector to connect digital channels
D15- D8 to the output of the oscilloscope calibrator. Then
connect the D15- D8 ground lead to the ground side of the
8- by- 2 connector.
10 Repeat this procedure (steps 7 and 8) for digital channels
D15- D8 to verify threshold accuracy and record the
threshold levels in the Performance Test Record (see
page 70).
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 300 MHz, 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
1mV/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
6000_series_service_guide.book Page 48 Friday, March 23, 2007 2:43 PM