Chapter 3: Testing Performance

To test voltage measurement accuracy

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 Minput

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.

8Select 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

Select Channel 1 as the source for the Vavg measurement

Source Selection for Vavg Measurement

9Select Channel 1 from the Setup menu.

10Set 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.

3–9

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Image 46
Agilent Technologies 46A Scale Offset Supply Tolerance Limits, Select Channel 1 as the source for the Vavg measurement