HP 6811B, User Manual

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26
Calibrating and Entering Power Analyzer Voltage Calibration Values
Action Display
4. Connect an HP 3458A DVM (in synchronous ac volts mode) to the ac source
output terminals. Short the Power Analyzer voltage terminals (V SENSE) to
ensure no dc offset error.
5.
Press
Shift Calibration
, scroll to CAL VOLT EXT, and press
Enter
.
CAL:VOLT:EXT
6. Leave the ac source on and remove the short from the Power Analyzer voltage
terminals.
7. Connect the Power Analyzer voltage sense terminals to the Main Output
terminals of the ac source
(see figure 3-1A).
8. Press Shift Calibration, scroll to CAL LEV P1 and press Enter .
The ac source will output 300 Vac 60 Hz sine wave.
CAL:LEV P1
9. Press
Shift Calibration,
scroll to CAL DATA, and use the Entry keypad to
enter the voltage value displayed on the HP 3458A DVM.
CAL:DATA 0.00
10.
Press
Shift Calibration
, scroll to CAL SAVE and press
Enter
.
CAL SAVE
Calibrating and Entering Power Analyzer Current Calibration Values
Action Display
11. Short the Power Analyzer current sense terminals (I SENSE) to ensure no dc
offset error.
12.
Press
Shift Calibration,
scroll to CAL CURR EXT and press
Enter
.
CAL:CURR:EXT
13. Leave the ac source on and remove the short from the Power Analyzer current
terminals.
14 Connect the Power Analyzer current terminals to the output of the function
generator (see figure 3-1B). Set the function generator output to 50 mV, 60 Hz.
15. Connect the Power Analyzer current terminals to the HP 3458A input terminals.
Note that the HP 3458A must be in synchronous ac volts mode and a 1.0 uF
capacitor must be installed across the HP 3458A input terminals.
16. Press Shift Calibration , scroll to CAL LEV P1, and press Enter . CAL LEV P1
17. Press Shift Calibration and scroll to CAL DATA. Use the Entry keypad to
enter the voltage value displayed on the HP 3458A DVM.
CAL:DATA 0.00
18 Change the function generator output setting to 500 mV.
19.
Press
Shift Calibration
, scroll to CAL LEV P1 command, use
°
to scroll to
the P2 parameter, and press
Enter
.
CAL:LEV P2
20.
Press
Shift Calibration
and scroll to the CAL DATA. Use the Entry keypad to
enter the voltage value displayed on the HP 3458A DVM.
CAL:DATA 0.00
21 Press Shift Calibration , scroll to CAL SAVE and press Enter CAL SAVE