Agilent Technologies 6812B, 6813B, 6811B manual Calibrating the OVP Trip Point

B - Verification and Calibration

26.	Press Shift Calibration, scroll to the CAL LEV P1 command, use ° to	CAL:LEV P2
	scroll to the P2 parameter, and press Enter. This selects the second
	calibration point.
27.	Press Shift Calibration, scroll to CAL DATA 0.00, and use the Entry	CAL:DATA 0.00
	keypad to enter the product of the transformer ratio times the ac voltage
	value displayed on the DVM.
28.	Press Shift Calibration, scroll to the CAL LEV P1 command, use ° to	CAL:LEV P3
	scroll to the P3 parameter, and press Enter.
29.	Press Shift Calibration, scroll to CAL DATA 0.00, and use the Entry	CAL:DATA 0.00
	keypad to enter the product of the transformer ratio times the ac voltage
	value displayed on the DVM.
30.	Press Shift Calibration, scroll to the CAL LEV P1 command, use ° to	CAL:LEV P4
	scroll to the P4 parameter, and press Enter.
31.	Press Shift Calibration, scroll to CAL DATA 0.00, and use the Entry	CAL:DATA 0.00
	keypad to enter the product of the transformer ratio times the ac voltage
	value displayed on the DVM.

The ac source is now holding the new ac rms voltage calibration constants in RAM.

Calibrating the OVP Trip Point

	Action	Display
32.	Press Shift Calibration, scroll to CAL VOLT PROT, and press Enter.	CAL:VOLT:PROT
33.	Wait for the ac source to compute the OVP calibration constant. The
	display returns to Meter mode when the OVP calculation is complete.

The ac source is now holding the new OVP calibration constants in RAM.

Calibrating and Entering rms Current Values

Action Display

34.Connect the DVM (ac rms mode), current shunt, and load resistor as shown in figure B-1 with S1 closed.

35.	Press Shift Calibration, scroll to the CAL CURR AC command, and	CAL:CURR:AC
	press Enter.
36.	Press Shift Calibration, scroll to the CAL LEV P1 command, and press	CAL:LEV P1
	Enter.
37.	Press Shift Calibration, scroll to the CAL DATA 0.00 command.	CAL:DATA 0.00
	Calculate the rms current value (DVM ac rms voltage/shunt resistance), and
	use the Entry keypad to enter the rms current.
38.	Press Shift Calibration, scroll to the CAL LEV P1 command, use ° to	CAL:LEV P2
	scroll to the P2 parameter, and press Enter.
39.	Press Shift Calibration, scroll to the CAL DATA 0.00 command.	CAL:DATA 0.00
	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 calibration constants in RAM.

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