Technical data

3 Application Tutorial
50 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
1DCV ACV
• Test DC to AC or AC to DC converter circuit.
• Measure DC level and AC ripple of power
supply.
2 ACV + DCV DCV
3ACV Frequency
• Measuring AC frequency response of
amplifier circuit.
• Adjusting AC motor control.
4ACI Frequency
5DCI 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.
8dBm DCV
• Indicating DC voltage and dBm.
9dBm ACV
• Indicating AC voltage and dBm.