Technical data
Application Tutorial 3
U3401A User’s and Service Guide 55
Measure True RMS AC + DC
The multimeter can measure the true RMS of AC voltage and AC current.
1 Press , and or and simultaneously. The
multimeter will measure the DC and AC signals alternatively, calculate
and display the AC+DC RMS value using the quation below:
AC+DC (RMS) =
NOTE
When AC+DC voltage measurement is selected, the DCV input impedance is paralleled
with the AC coupled 1.1 MΩ AC divider.
DC
2
+ AC
2