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 front panel CAL connector and multimeter as shown below.
2. Set the multimeter to display 5½ digits and set the function to DCV.
3. Enter the following setup.
Nominal Setup
Setup
DC level
SCPI command
6
[a]
~1.0 VDC ± 10%
Calibrates the internal ADC.
CAL:SET 6
[a] Constants are stored after completing this setup.
4. Enter the measured frequency by using SCPI command.
5. To proceed:
a. If CAL? check return (+1), exit the calibration menu and perform
Internal Timebase Verification
b. If you are making all of the adjustments and then verifying the instrument’s performance, continue with the
next procedure in this section.
Keysight EDU33210 Series Service Guide
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