Agilent Technologies 66111A User Manual page 156

B - Verification and Calibration
Steps 11-16 apply to Agilent 66309B/D output 2 only
13. Connect the external DMM (in voltage mode) directly to output 2.
Do not connect the load resistor or current shunt. Select output 2.
14. Press Shift Cal, scroll to CAL VOLT2, and press Enter.
15. Press Shift Cal, scroll to CAL LEV, and press Enter to select the first
calibration point.
16. Press Shift Cal, scroll to CAL DATA, press Enter Number, and enter the
voltage value displayed on the DMM.
Press Shift Cal, scroll to CAL LEV, use É to scroll to P2 (the second
17.
calibration point), and press Enter.
18. Press Shift Cal, scroll to CAL DATA, press Enter Number, and enter the
second voltage value displayed on the DMM.
Overvoltage Protection Calibration
Action
19. Press Shift Cal, scroll to CAL VOLT PROT, and press Enter.
20. Wait for the dc source to compute the OVP calibration constant. The display
returns to Meter mode when the calculation is complete.
Current Programming and High-Range Measurement Calibration
NOTE:
When performing a High Range current calibration, you must also calibrate the low
range and the ac current measurement.
Action
21. Connect the appropriate current monitor to output 1 as shown in figure B-1A.
Connect the DMM (in voltage mode) across the current shunt. Select output 1.
22. Press Shift Cal, scroll to CAL CURR, and press Enter.
23. Press Shift Cal, scroll to CAL LEV, and press Enter to select the first
calibration point.
24. Press Shift Cal and scroll to CAL DATA. Wait for the DMM reading to
stabilize. Then read the DMM and compute the first current value (DMM
reading ÷ shunt resistance). Press Enter Number and enter the first current
value in amperes.
Press Shift Cal, scroll to CAL LEV, use É to scroll to P2 (the second
25.
calibration point), and press Enter.
Press Shift Cal and scroll to CAL DATA. Wait for the DMM reading to
26.
stabilize. Then read the DMM and compute the second current value (DMM
reading ÷ shunt resistance). Press Enter Number and enter the second current
value in amperes.
156
CAL:VOLT2
CAL:LEV P1
CAL:DATA 0.00
CAL:LEV P2
CAL:DATA 0.00
Display
CAL:VOLT:PROT
Display
CAL:CURR
CAL:LEV P1
CAL:DATA 0.00
CAL:LEV P2
CAL:DATA 0.00