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Calibrating and Entering rms Current Measurement Values
Action
40.
Connect the DVM (ac rms mode), current shunt, and load resistor as shown
in figure B-1 with S1 closed.
41.
Press Shift Calibration, scroll to the CAL CURR MEAS command, and
press Enter.
42.
Press Shift Calibration, scroll to the CAL LEV P1 command, and press
Enter.
43.
Press Shift Calibration, scroll to the CAL DATA 0.00 command.
Calculate the rms current value (DVM ac rms voltage/shunt resistance), and
use the Entry keypad to enter the rms current.
Press Shift Calibration, scroll to CAL LEV P1 command, use to scroll
44.
to the P2 parameter, and press Enter.
45.
Press Shift Calibration, scroll to the CAL DATA 0.00 command.
Calculate the rms current value (DVM ac rms voltage/shunt resistance), and
use the Entry keypad to enter the rms current.
The ac source is now holding the new rms current measurement calibration constants in RAM.
Calibrating the Output Impedance
Action
46.
Connect only the output impedance resistor across the output of the ac
source. Do not connect any other equipment.
47.
Press Shift Calibration, scroll to the CAL IMP command, and press
Enter.
48.
Wait for the ac source to compute the output impedance calibration
constant. The display returns to Meter mode when the calculation is
complete.
The ac source is now holding the new output impedance calibration constants in RAM.
Saving the Calibration Constants
CAUTION:
Storing calibration constants overwrites the existing ones in non-volatile memory. If you
are not sure you want to permanently store the new constants, omit this step. The ac
source calibration will then remain unchanged.
Action
49.
Press Shift Calibration, scroll to CAL SAVE, and press Enter.
50.
Press Shift Calibration, select CAL OFF, and press Enter to exit
Calibration mode. *RST and *RCL will also set the calibration state to
OFF.
Verification and Calibration - B
Display
CAL:CURR:MEAS
CAL:LEV P1
CAL:DATA 0.00
CAL:LEV P2
CAL:DATA 0.00
Display
CAL:IMP
Display
CAL:SAVE
CAL OFF
75
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