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

5 Characteristics and Specifications
Specification Assumptions
104 U1231A/U1232A/U1233A User’s Guide
Specification Assumptions
• Accuracy is given as ±(% of reading + counts of least
significant digit) at 23 °C ± 5 °C, with relative humidity
less than 80% RH.
• AC V and AC A specifications are AC coupled, true rms
and are valid from 5% of range to 100% of range.
• The crest factor may be up to 3.0 at full- scale (4000
counts)
• For non- sinusoidal waveforms, add (2% reading + 2% full
scale) typical.
• After VZ
LOW
(low input impedance) voltage measurements,
wait at least 20 minutes for thermal impact to cool before
proceeding with any other measurement.
WARNING
Exceeding the crest factor limit may result in an incorrect or a lower
reading. Do not exceed the crest factor limit to avoid instrument
damage and the risk of electric shock.