Getting Started 1
Keysight U1253B User’s and Service Guide 35
7
– enters the Frequency Test mode for
current or voltage measurements.
– Press to scroll through frequency (Hz),
pulse width (ms), and duty cycle (%) functions.
– In duty cycle (%) and pulse width (ms) tests,
press to switch between positive and
negative edge trigger.
– When the rotary switch is at the position, and
the Frequency Counter function is selected,
pressing will cycle through the frequency,
pulse width, and duty cycle measurements.
– If data logging is set as (manual data logging),
pressing for more than 1 second will log the present
reading into the memory. The display will return to normal
after 3 seconds. To manually log another reading, press
again for more than 1 second.
– If data logging is set as (automatic data logging),
pressing for more than 1 second will enter the
automatic data logging mode, and data is logged at the
interval defined in Setup mode
[a]
.
– Press for more than 1 second to exit data logging
mode.
Notes for keypad descriptions and functions:
[a] See Table 4-1 on page 111 for details of available options.
[b] When the rotary switch is at and the temperature measurement function is selected, pressing will not affect any setting. When
the rotary switch is at and the frequency counter function is selected, press to switch between dividing the signal frequency by 1
or 100.
[c] When the rotary switch is at and the temperature measurement function is selected, ETC (Environment Temperature Compensation) is
ON by default. Press to disable ETC; will appear on the display. For pulse width and duty cycle measurements, press
to switch between positive and negative edge trigger. When the multimeter is in Peak or Dynamic Recording mode, press to
restart the 1 ms Peak Hold or Dynamic Recording mode.
Table 1-2 Keypad descriptions and functions (continued)
Button Function when pressed for less than 1 second Function when pressed for more than 1 second
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