Keysight U1272A - Page 10

U1271A/U1272A Handheld Digital Multimeter
Performing Measurements and Tests
8 U1271A/U1272A Quick Start Guide
1 Press for more than 1 second to enter the multimeter’s
setup menu.
2 Press or until is shown on the
secondary display.
3 Press or to enable the Filter.
Refer to the table below for the respective firmware ver-
sions.
4 Press to save your changes.
5 Press and hold until the multimeter restarts and returns
to normal operation. Turn the multimeter to DC Voltage
mode to verify that the LPF symbol is turned on.
LPF during AC measurements:
• Passing the measured signal through a LPF help blocks
unwanted voltages such as electronic noise.
• Use the LPF function to improve measurement on compos-
ite sine waves that are typically generated by inverters and
variable frequency motor drives.
Version 2.00 Version 2.04 or newer
on dC
CAUTIONCAUTION
To avoid possible electric shock or personal injury, enable
the Filter (
) to verify the presence of hazardous DC
voltages. Displayed DC voltages can be influenced by high
frequency AC components and must be filtered to assure
an accurate reading.
Press while performing AC
voltage measurements to pass the
measured signal through a low pass
filter.
Setup
P
e
a
k
M
a
x
M
i
n
A
u
t
o
R
a
n
g
e
Exit
Dual
Setup
H
z
%
m
s
L
o
g
Setup
S
h
i
f
t
V
i
e
w
E
sc