Keysight U1273A Guia De Inicio Rapido página 12

To avoid possible electric shock or personal injury,
CAUTION
enable the Filter
hazardous DC voltages. Displayed DC voltages can
be influenced by high frequency AC components
and must be filtered to assure an accurate reading.
LPF during AC measurements:
– Passing the measured signal through a LPF
– Use the LPF function to improve measurement
Z
LOW
– Use the Z
– Z
12
(
help blocks unwanted voltages such as
electronic noise.
on composite sine waves that are typically
generated by inverters and variable frequency
motor drives.
measurements:
(low input impedance) function
LOW
to remove ghost or induced voltages from
your measurement.
can remove ghost voltages from your
LOW
measurements by dissipating the coupling
voltage. Use Z
LOW
false readings in areas where the presence of
ghost voltages are suspected.
Keysight U1273A/U1273AX Quick Start Guide
to verify the presence of
)
Press while performing
AC voltage measurements to
pass the measured signal
through a low pass filter.
Rotate the rotary switch's
position to to enable low
Z
LOW
impedance measurements.
to reduce the possibility of