User`s guide

1 Introduction
Your Multimeter in Brief
20 U1273A/U1273AX User’s Guide
Keypad
The operation of each key is explained below. Pressing a key
enables a function, displays a related symbol, and emits a
beep. Turning the rotary switch to another position resets
the current operation of the key. Click the respective “Learn
more” pages for more information on each function.
Figure 1-13 Keys
Table 1- 5 Keypad functions
Legend
Function when pressed for:
Learn
more on:
Less than 1 second More than 1 second
Sets the Null/Relative mode.
• The displayed value is saved as a
reference to be subtracted from
subsequent measurements.
• While in Null mode, press again
to view the stored reference value that
has been saved. The display will return
to normal after 3 seconds.
• Pressing while the relative value
is being displayed will cancel the Null
mode.
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.
page 88
and
page 90
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