3 Application Tutorial
64 Keysight U3401A User’s and Service Guide
Applications for Using Dual Display
The dual display feature in the multimeter can be used to enhance test and
measurement capabilities. See Table 3-1 for the available combinations and
application when using dual display.
Table 3-1 Typical combinations and applications when using dual display
No. Primary display Secondary display Applications
1 DCV ACV – Test DC to AC or AC to DC converter circuit.
– Measure DC level and AC ripple of power supply.
2 ACV + DCV DCV
3 ACV Frequency – Measuring AC frequency response of amplifier circuit.
– Adjusting AC motor control.
4ACI Frequency
5 DCI ACI – Measuring AC ripple and DC current of power supply.
– Measuring current dissipation for power supply analysis.
6 ACI + DCI DCI
7dBm Reference Ω – Setting dB reference impedance and show dBm.
8 dBm DCV – Indicating DC voltage and dBm.
9 dBm ACV – Indicating AC voltage and dBm.
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