Agilent Technologies E3646A, User Manual, Page: 200 / 211

Appendix Service Information
General Calibration/Adjustment Procedure
200
10 Run the OVP calibration.
Above message is displayed to indicate that the calibration is progressing. It takes
approximately 10 seconds to complete the calibration. If the calibration fails, an error
message will be displayed for a second and you will hear a beep, and then go back to
the OVP calibration mode again.
Current Calibration
11 Select the low-end current calibration point.
12 Enter the computed value (DVM reading
÷
by shunt resistance) by using the
knob and resolution selection keys.
Notice that you should wait for the DVM reading to be stabilized for accurate
calibration during the current calibration.
13 Save the changes and select the middle current calibration point.
If the entered number is within an acceptable range, an ‘‘ ENTERED ’’ message
appears for a second. If the entered number is not correct, an error message will be
displayed for a second and you will hear a beep, and then go back to the low, middle,
or high current calibration point again as proceeding.
CALibrating
Connect an appropriate shunt 0.01
Ω
across the output terminals, and connect a
digital voltmeter across the shunt resistor for the current calibration.
I LO 0. 2 000
I LO 0.1900
I MI 1. 5 000
Calibrate
View
Calibrate
View
Calibrate
View