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1
Introduction
Table 1-5
Keypad functions
Legend
Sets the Null/Relative mode.
– The displayed value is saved as a reference
to be subtracted from subsequent
measurements.
– While in Null mode, press
view the stored reference value that has
been saved. The display will return to
normal after 3 seconds.
– Pressing
being displayed will cancel the Null mode.
Starts the MaxMin recording.
– Press
maximum (REC MAX), minimum (REC
MIN), average (REC AVG), and present
(REC NOW) readings.
– Press
this mode.
Freezes the present reading in the display
(T-HOLD mode).
– In TrigHold mode, press
trigger the holding of the next measured
value.
– Press
this mode.
40
Function when pressed for:
Less than 1 second
again to
while the relative value is
again to cycle through
for more than 1 second to exit
to manually
for more than 1 second to exit
More than 1 second
Sets the Scale mode for the specified ratio and
unit display. (Only applicable for voltage
measurements.)
– The most recently saved (or default) ratio
and unit will be shown on the primary
and secondary displays.
– Press
while the SCALE symbol is
flashing to cycle through the available
ratio and unit displays.
– Press
while the SCALE symbol is
flashing to save the selected ratio and
unit and to start the conversion, or
– While the SCALE symbol is flashing, if
no activity is detected after 3 seconds,
the conversion will begin (with the
specified ratio and unit shown on the
primary display).
– Press
for more than 1 second to
cancel the Scale transfer mode.
Starts and stops the Peak recording.
– Press
again to switch between the
maximum (P-HOLD+) and minimum
(P-HOLD–) peak readings.
– Press
for more than 1 second to
exit this mode.
Automatically freezes the present reading
once the reading is stable (A-HOLD mode)
– In AutoHold mode, the reading is
updated automatically once the reading
is stable and the count setting is
exceeded.
– Press
for more than 1 second to
exit this mode.
Keysight U1273A/U1273AX User's Guide
Learn more
on:
page 106
and
page 108
page 110
and
page 112
page 114
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