User`s guide

1 Introduction
Your Multimeter in Brief
22 U1273A/U1273AX User’s Guide
Measures the frequency for the current or
voltage measurement.
• Press to scroll through the
frequency (Hz), pulse width (ms), and
duty cycle (%) measurements.
• In duty cycle and pulse width
measurements, press to switch
between the positive or negative edge
trigger.
• Press for more than 1 second to exit
this mode.
Starts and stops the Data Logging.
• If data logging is set as HAND (manual
data logging), pressing for more
than 1 second will log the present
reading into the memory. The display
will return to normal after a short while
(≈ 1 second). To manually log another
reading, press again for more
than 1 second.
• If data logging is set as AUTO
(automatic data logging), pressing
for more than 1 second will enter
the automatic data logging mode,
where data is logged at the interval
defined in the multimeter’s setup.
• If data logging is set as TRIG (event
data logging), pressing for more
than 1 second will enter the event data
logging mode, where data is logged
each time a triggering condition is
satisfied.
• Press for more than 1 second to
exit the automatic or event data logging
mode.
page 81
and
page 97
• Sets a manual range and disables
auto-ranging. Press again to cycle
through each available measurement
range.
• During temperature measurements, if
Celsius-Fahrenheit (°C-°F) or
Fahrenheit-Celsius (°F-°C) is selected as
the default temperature unit, pressing
changes the temperature
measurement unit between Celsius (°C)
and Fahrenheit (°F). See “Changing the
temperature unit” on page 117 for more
information.
Enables auto-ranging.
page 8 and
page 117
Table 1- 5 Keypad functions (continued)
Legend
Function when pressed for:
Learn
more on:
Less than 1 second More than 1 second
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