User`s guide

B Dual Display Combinations Using the Dual Key
158 U1273A/U1273AX User’s Guide
WARNING
In the dual display DC voltage decibel and DC voltage measurement mode, the
icon will not appear on the screen regardless of voltage.
Table B - 1 U1273A/U1273AX dual display combinations
Rotary switch position
Function shown (when is pressed) in the:
Primary display Secondary display
Low impedance (Z
LOW
) AC voltage
measurement (V)
Low impedance (Z
LOW
) DC voltage
measurement (V)
Press to switch the function shown on the primary display (AC V) with the function shown
on the secondary display (DC V). Press again to switch back the functions.
AC voltage measurement (AC V) AC coupling frequency measurement (Hz)
AC voltage decibel display (dBm) is enabled
when is pressed.
AC voltage measurement (AC V)
AC voltage measurement (AC V) with
low-pass filter (LPF)
AC coupling frequency measurement (Hz)
AC voltage decibel display (dBm) with
low-pass filter (LPF) is enabled when is
pressed.
AC voltage measurement (AC V) with
low-pass filter (LPF)
AC voltage measurement (AC mV) AC coupling frequency measurement (Hz)
AC voltage decibel display (dBm) is enabled
when is pressed.
AC voltage measurement (AC mV)
AC voltage measurement (AC mV) with
low-pass filter (LPF)
AC coupling frequency measurement (Hz)
AC voltage decibel display (dBm) with
low-pass filter (LPF) is enabled when is
pressed.
AC voltage measurement (AC mV) with
low-pass filter (LPF)
Exit
Dual
Z LOW
Exit
Dual
Exit
Dual
Exit
Dual
Exit
Dual
Exit
Dual
Exit
Dual