28 Agilent U1251A/U1252A User’s and Service Guide
1 Getting Started Tutorial
Rotary switch position
(Function)
Primary display Secondary display
(AC voltage)
AC V Hz (AC coupling)
dBm or dBV (select
by pressing )
AC V
AC V
Ambient temperature °C or °F
for U1252A
(AC voltage)
AC V Hz (AC coupling)
dBm or dBV
(1)
AC V
AC V DC V
AC V
Ambient temperature °C or °F
V for U1251A/
for U1252A
(DC voltage)
DC V Hz (DC coupling)
dBm or dBV
(1)
DC V
DC V AC V [for U1252A]
DC V
Ambient temperature °C or °F
for U1252A
(AC + DC voltage)
AC + DC V Hz (AC coupling)
dBm or dBV
(1)
AC + DC V
AC + DC V AC V
AC + DC V DC V
AC + DC V
Ambient temperature °C or °F
(AC voltage)
AC mV Hz (AC coupling)
dBm or dBV
(1)
AC mV
AC mV DC mV
AC mV
Ambient temperature °C or °F
(DC voltage)
DC mV Hz (DC coupling)
dBm or dBV
(1)
DC mV
DC mV AC mV
DC mV
Ambient temperature °C or °F
[1] Reading of dBm or dBV depends on the last review on AC V. If the last
review is dBV, the following display will also remain in dBV.