Keysight Technologies U1273A Guide De L'utilisateur page 61

Using the Filter Function for DC measurements
Turn on the Filter Function when measuring DC voltage and/or current from a
mixed signal (AC+DC components) in the DC voltage measurement mode. See
"Enabling the filter"
The Filter Function blocks and attenuates AC signals to help you read the DC
measurement from a mixed signal. For instance, a DC offset with an AC voltage
signal presence (for example, AC 100 V/220 V applied to the 3 V range).
The
Figure 2-6
– To avoid possible electric shock or personal injury, enable the Filter(LPF)
WARNING
– Do not enable any of the dual display options when performing
Keysight U1273A/U1273AX User's Guide
on page 146 for more information.
will appear if the Filter is enabled in the multimeter's Setup.
Filter for DC voltage measurements
to verify the presence of hazardous DC voltages. Displayed DC voltage
values can be influenced by high frequency AC components and must be
filtered to assure an accurate reading.
measurements to verify the presence of hazardous DC voltages.
Making Measurements 2
61