Agilent Technologies Agilent 33500 Series Operating And Service Manual page 391

Internal ADC Adjustment
Internal ADC Adjustment
The instrument stores calibration constants related to the gain and offset of the internal ADC. Setup 6 must always be
performed before any other amplitude adjustments are attempted. The internal ADC is then used as a source for the
calibration constants generated in self calibration (setup 7).
1. Connect the channel 1 output to the instrument's rear panel Modulation Input and DMM as shown below.
2. Set the DMM to display 5 1/2 digits and function to DCV.
3. Enter the following setup.
Nominal Signal
Setup DC level
6* ~1.0 VDC ±10%
* Constants are stored after completing this setup.
4. Use the numeric keypad or knob to enter the value measured on the DMM.
This setup requires approximately 15 seconds to complete.
5. Disconnect all cables from the instrument.
390
Calibrates the internal ADC.
Agilent 33500 Series Operating and Service Guide