User`s guide

Introduction 1
Preparing Your Multimeter
U1231A/U1232A/U1233A User’s Guide 13
Power-on options
Some options can be selected only while you turn the
multimeter on. These power- on options are listed in the
table below.
To select a power- on option, press and hold the specified
key in Table 1- 2 while turning the rotary switch from OFF
to any other position. Power- on options remain selected
until the multimeter is turned off.
Table 1 - 2 Power-on options
Key Description
Enters the multimeter’s Setup menu.
See Chapter 4, “Multimeter Setup Options,” starting on
page 79 for more information. Press and hold for
more than 1 second to exit this mode.
Enables Smooth until the multimeter is turned off.
To p e r ma n e nt l y e n able Smooth, see “Enabling and
changing the Smooth refresh rate” on page 85.
Tests the LCD.
All annunciators are displayed in the LCD. Press any key to
exit this mode.
Checks the firmware version.
The multimeter’s firmware version will be shown on the
primary display. Press any key to exit this mode.
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