User`s guide
Table Of Contents
- Agilent U1231A, U1232A, and U1233A Handheld Digital Multimeter
- Table of Contents
- List of Figures
- List of Tables
- Introduction
- Making Measurements
- Multimeter Features
- Multimeter Setup Options
- Using the Setup Menu
- Setup Menu Summary
- Setup Menu Items
- Changing the variation count
- Enabling and changing the Smooth refresh rate
- Enabling and changing the voltage alert level
- Changing the beep frequency
- Changing the auto power-off (APO) timeout
- Changing the LCD backlight timeout
- Adjusting the LCD backlight intensity
- Enabling the LED flashlight timeout
- Adjusting the LED flashlight intensity
- Changing the minimum measurable frequency
- Changing the continuity test alerts
- Changing the power-on greeting tone
- Resetting the Setup items
- Changing the scale conversion value
- Enable the AC/DC mV measurement
- Enable open continuity test by default
- Changing the temperature unit
- Characteristics and Specifications

1 Introduction
Preparing Your Multimeter
8 U1231A/U1232A/U1233A User’s Guide
HELP and dEMo modes
The HELP and dEMo modes can be enabled through the
power- on options (see page 13).
1 While in the flashlight power- on mode, press or
until is shown to enable the HELP mode.
2 While in the flashlight power- on mode, press or
until is shown to enable the dEMo mode.
3 Press or to cycle between the HELP, dEMo, or
flashlight mode. Press and hold for more than 1
second to toggle the flashlight on or off (for any of the
modes — HELP, dEMo, or flashlight mode).
NOTE
• To conserve battery life, a user-adjustable timeout can be set to control
how long the flashlight stays on. To set a timeout period, refer to
“Enabling the LED flashlight timeout” on page 91.
• You can also adjust the flashlight’s intensity to conserve battery life.
The default intensity is high. To change the flashlight’s intensity level
refer to “Adjusting the LED flashlight intensity” on page 92.
• Use the power-on option (hold while powering on the multimeter)
to enable the flashlight without multimeter operation. In this mode, you
can adjust the flashlight intensity using the or keys, as well as
cycle between the HELP mode, dEMo mode, or flashlight mode using
the or keys. To learn more, see “HELP and dEMo modes” on
page 8 and “Power-on options” on page 13.
Max
Min
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NOTE
When the HELP mode is enabled, the multimeter flashes the international
Morse code distress signal (· · · — — — · · ·) repeatedly. Use this option to
send a visual alert or notification of a distress in progress.
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NOTE
When the dEMo mode is enabled, the multimeter demonstrates the
flashlight and beeper abilities by flashing the flashlight repeatedly
accompanied by a melody tone.
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