Table 1-2
Keypad descriptions and functions
Button
Function when pressed for less than 1 second
1
cycles through OLED display brightness
levels.
2
–
holds the current measured value.
– In Data Hold mode (
again to trigger the holding of the next measured
value. Press
this mode.
– In Refresh Hold mode (
updated automatically once the reading is stable
and the count setting is exceeded
again to exit this mode.
3
–
saves the displayed value as a reference to
be subtracted from subsequent measurements.
– While in null mode, press
relative value (
The saved relative value will be displayed for 3
seconds.
– Press
being displayed to cancel the Null function.
Keysight U1253B User's and Service Guide
), press
for more than 1 second to exit
), the reading is
[a]
. Press
to view the
) that has been saved.
while the relative value (
Function when pressed for more than 1 second
–
enters Log Review mode. Press
between manual or interval logging data.
– Press
or
to view first or last logged data respectively.
Press
or
to scroll through the logged data.
– Press
for more than 1 second to exit this mode.
–
enters the Dynamic Recording mode.
– Press
again to scroll through maximum, minimum,
average, or present readings (indicated by
,
– Press
for more than 1 second to exit this mode.
–
enters the 1 ms Peak Hold mode.
– Press
to scroll through maximum (
minimum (
– Press
for more than 1 second to exit this mode.
) is
Getting Started
to switch
, or
on the display).
) peak readings.
1
,
) and
33