HP 54645A - Page 207

7
Continue checking the voltage measurement accuracy with the
remaining power supply setting lines in the following table.
Table 7-6 Voltage Measurement Accuracy
Volts/Div setting Power supply setting Test limits
5 V/Div 35 V 34.24 V to 35.76 V
2 V/Div 14 V 13.696 V to 14.304 V
1 V/Div 7 V 6.848 V to 7.152 V
0.5 V/Div 3.5 V 3.424 V to 3.576 V
0.2 V/Div 1.4 V 1.3696 V to 1.4304 V
0.1 V/Div 700 mV 684.8 mV to 715.2 mV
50 mV/Div 350 mV 342.4 mV to 357.6 mV
20 mV/Div 140 mV 136.96 mV to 143.04 mV
10 mV/Div 70 mV 68.48 mV to 71.52 mV
5 mV/Div 35 mV 34.24 mV to 35.76 mV
2 mV/Div 14 mV 13.696 mV to 14.304 mV
1 mV/Div*
7 mV 6.696 mV to 7.304 mV
*
Full scale is defined as 16 mV on the 1 mV/div range. Full scale on all
other ranges is defined as 8 divisions.
8
Disconnect the power supply from the oscilloscope, then repeat
steps 1 to 7 for channel 2.
Channel 2 is labeled "2" on HP 54645A and "A2" on HP 54645D.
Testing, Adjusting, and Troubleshooting
To verify voltage measurement accuracy
7-18