34410A/11A/L4411A Service Guide 95
Calibration Procedures 3
AC Voltage Flatness Calibration Procedure
Review the “Test Considerations” on page 63 and “Flatness Adjustment
Considerations” on page 93 sections before beginning this procedure.
Configuration: AC Voltage
The 100V AC range is adjusted with 50Vac input. All AC adjustments uses
the 3 Hz bandwidth measurement filter
1 Configure each function and range shown in the adjustment table
below.
2 Apply the input signal shown in the “Input” column of the table.
3 Enter the actual applied voltage input amplitude (see “Entering Adjustment
Values” on page 78).
a Successful completion of each adjustment value is indicated by the
message CAL SUCCEEDED flashing in the display.
b If a problem is encountered, the display will flash the message
CAL FAILED. Check the input value, range, function, and entered
adjustment value to correct the problem and repeat the adjustment
step.
4 Repeat steps 1 through 3 for each flatness adjustment point shown in
the table.
5 Repeat steps 1 through 4 for each input voltage range table 100 mV,
1 V, 10 V, and 100 V.
6 Store the new calibration constants (“Storing the Calibration Constants” on
page 78.
7 Verify the AC Flatness adjustments using the verification procedures
beginning on page 70.
Always complete tests in the specified order as shown in the appropriate table.
Each range in the flatness adjustment procedure takes less than 10 seconds to complete.