Output impedance adjustment (channel 2)
The instrument stores calibration constants for the channels' output impedance. These constants are generated with
and without the post-amplifier attenuator.
1. Set the multimeter to measure offset-compensated, 4-wire Ohms. Set the multimeter to use 100 NPLC integ-
ration. Connect the Ohms Source and Ohms Sense of the multimeter inputs to the channel output as shown
below.
2. Use the multimeter to make a 4-wire resistance measurement at the front panel output connector for each
setup in the following table. The expected measured value is approximately 50 Ω.
Setup
SCPI command
55
[a]
24 dB post-attenuator range
CAL:SET 55
56
[a]
0 dB
CAL:SET 56
[a] Constants are stored after completing this setup.
3. Enter the value measured using SCPI command.
4. There are no specific operational verification tests for output impedance. Continue with the next adjustment pro-
cedure in this section.
42
Keysight EDU33210 Series Service Guide
