B - Verification and Calibration
156
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
.
CAL:VOLT2
15.
Press
Shift Cal
, scroll to CAL LEV, and press
Enter
to select the first
calibration point.
CAL:LEV P1
16.
Press
Shift Cal
, scroll to CAL DATA, press
Enter Number
, and enter the
voltage value displayed on the DMM.
CAL:DATA 0.00
17.
Press
Shift Cal
, scroll to CAL LEV, use
É
to scroll to P2 (the second
calibration point), and press
Enter
.
CAL:LEV P2
18.
Press
Shift Cal
, scroll to CAL DATA, press
Enter Number
, and enter the
second voltage value displayed on the DMM.
CAL:DATA 0.00
Overvoltage Protection Calibration
Action
Display
19.
Press
Shift Cal
, scroll to CAL VOLT PROT, and press
Enter
.
CAL:VOLT:PROT
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
Display
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
.
CAL:CURR
23.
Press
Shift Cal
, scroll to CAL LEV, and press
Enter
to select the first
calibration point.
CAL:LEV P1
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.
CAL:DATA 0.00
25.
Press
Shift Cal
, scroll to CAL LEV, use
É
to scroll to P2 (the second
calibration point), and press
Enter
.
CAL:LEV P2
26.
Press
Shift Cal
and scroll to CAL DATA. Wait for the DMM reading to
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.
CAL:DATA 0.00