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Chapter 3: Testing Performance
To test voltage measurement accuracy
3–9
Below 10 mV/div expansion is used and full scale is defined as 80 mV. The ranges
from 2 to 9 mV/div are handled in firmware, and will be within specifications when the
10 mV/div range is within specifications.
8
Select Vavg from the Voltage submenu of the Measure menu. Ensure that Channel 1 is
selected in the Source dialog and click Close.
See figure 3-6.
Figure 3-6
Source Selection for Vavg Measurement
9 Select Channel 1 from the Setup menu.
10 Set the vertical scaling for Channel 1 to the volts/div value from the first row of the
table in step 7. Set the Offset value to the Position value from the first row of the same
table. Click Close.
See figure 3-7.
Scale Offset Supply Tolerance Limits
2 V/div* 2.5 V 5 V ±163.8 V 4.836 V to 5.164 V
1 V/div 2.5 V 5 V
±82 mV 4.918 to 5.082 V
500 mV 1.75 V 3.5 V
±41 mV 3.459 to 3.541 V
200 mV 700 mV 1.4 V
±16.4 mV 1.384 to 1.416 V
100 mV 350 mV 700 mV
±8.2 mV 691.8 mV to 708.2 mV
50 mV 175 mV 350 mV
±4.1 mV 345.9 mV to 354.1 mV
20 mV 70 mV 140 mV
±1.64 mV 138.36 mV to 141.64 mV
10 mV 35 mV 70 mV
±0.819 mV 69.18 mV to 70.82 mV
* only in 1 M
Ω input
Select Channel 1 as the
source for the Vavg
measurement