Keysight U1251B Guia Del Usuario página 34

1 Getting Started
Table 1-2 Keypad descriptions and functions (continued)
Button Function when pressed for less than 1 second
4
scrolls through the measuring function(s) at a
particular rotary switch position.
5
scrolls through available measuring ranges
(except when rotary switch is set at
U1252B] position)
6
scrolls through available dual-combination
displays (except when rotary switch is set at
TEMP or Hz [for U1252B] position, or when meter is in
1 ms peak hold or dynamic recording mode)
7 enters Frequency Test mode for current or voltage
measurements. Press
frequency (Hz), duty cycle (%) and pulse width (ms)
functions. In duty cycle (%) and pulse width (ms) tests,
press
Notes for keypad descriptions and functions:
[a] See Table 4-1 on page 103 for details of available options.
[b] When rotary switch is at
of signal frequency by 1 or 100.
[c] When rotary switch is at
will appear on display. For pulse and duty cycle measurement, press
in peak or dynamic-recording mode, press
32
[b]
.
to scroll through
to switch to positive or negative pulse.
, press to switch to ºC or ºF display. When rotary swtich is at Hz, press
, ETC is ON by default. You may press
to restart 1 ms peak hold or dynamic recording mode.
Function when pressed for more than 1 second
enters Log Review mode. Press
to switch to manual or interval logging data. Press
or to view first or last logged data respectively.
Press
Press
sets to Auto Range mode.
or at Hz [for
exits Hold, Null, Dynamic Recording, 1 ms
Peak Hold and dual display modes.
or
[c]
.
enters logging mode. In manual data logging,
press
automatic data logging, data logs automatically
Press
logging mode.
to disable ETC (Environment Temperature Compensation),
to switch trigger slope to positive or negative. When meter is
Keysight U1251B and U1252B User's and Service Guide
or to scroll up or down logged data.
for more than 1 second to exit mode.
to log data manually into memory. In
for more than 1 second to exit auto data
[a]
.
to switch to division