U1233A - KEYSIGHT TECHNOLOGIES

Keysight U1230 Series

Handheld Digital Multimeters

(DMMs)

Data Sheet

Introduction

Retool your expectations with the new Keysight Technologies, Inc. U1230 Series Handheld

DMMs — the rst to combine a built-in LED ashlight, both audible and visual alerts, and

non-contact AC voltage detection in one handheld.

Whether it is dark, noisy or even dangerous, the U1230 Series handheld digital multimeters

keep you equipped with features that anticipate worst-case scenarios. The ergonomic

shaped handheld allows you to single-handedly illuminate the test area with a built-in

ashlight while selecting measurement functions using the rotary dial. Vsense performs

non-contact voltage detection while continuity detection is made easy with the audible

beeper alert and ashing backlight display. With the U1230 Series, you work better in the

conditions you are in.

Features

– Built-in LED ashlight to illuminate test area

– Flashing backlight as additional visual alert during

continuity tests in noisy environments

– Vsense to perform non-contact voltage detection

– Data logging capability (stores up to 10 readings)

– IR-to-USB connectivity to transfer data to PC for record

Ergonomically shaped with a built-in ashlight

Built for handheld users working in a poorly lit environment, the U1230 Series allows you

to single-handedly illuminate your test area while making measurements with its easily

activated built-in ashlight. Its ergonomic shape ts your hand, while the easily accessible

rotary dial allows selection of measurement functions.

Flashing backlight and beeping alert for continuity detection

The U1230 Series is built for continuity detection in dark and noisy environments. Its audible

beep and ashing backlight display provides increased visual and audio alert to indicate

continuity.

Non-contact voltage detection with Vsense

The Vsense, a unique feature found in the U1233A model performs non-contact voltage

detection. It delivers more safety while making measurements in dangerous working

environments by avoiding any contact with hot or live wires. Upon detection of voltage,

it produces a unique combination of beeping alert and blinking LED light to make

measurements more efciently – especially in a dark or noisy environment.

03 | Keysight | U1230 Series Handheld Digital Multimeters (DMMs) – Data Sheet

Take a Closer Look

Low input impedance to

eliminate ghost voltage

measurement

Anti-slip rotary dial for

easy measurement

function selection

Flashing light and audible

beep during presence of

voltage1

Bar graph indication and

frequency measurement

path

Vsense performs

non-contact voltage

detection1

Ease viewing with display

backlight or built-in

ashlight

Figure 1. U1230 Series front view

Freezes and stores current

measurement value

Allows exibility to change

measurement range

Figure 2. The built-in ashlight

as illustrated

1. Only applicable for the U1233A model

04 | Keysight | U1230 Series Handheld Digital Multimeters (DMMs) – Data Sheet

Electrical Specications

DC specications

Function Range Resolution

Accuracy ±

(% of reading + counts of

least signicant digit)

Test

current

Burden

voltage/

shunt

Input

impedance

U1231A/U1232A/

U1233A

Where

(applicable)

Where

(applicable)

Where

(applicable)

Voltage

600 mV10.1 mV 0.5% + 2 NA NA 11.18 MΩ

6 V 0.001 V 0.5% + 2 NA NA 11.18 MΩ

60 V 0.01 V 0.5% + 2 NA NA 10.1 MΩ

600 V 0.1 V 0.5% + 2 NA NA 10 MΩ

600 V (VZLOW)20.1 V 2% + 3 NA NA 3 kΩ

Resistance

600 Ω40.1 Ω 0.9% + 3 0.57 mA NA NA

6 kΩ40.001 kΩ 0.9% + 3 57 μA NA NA

60 kΩ 0.01 kΩ 0.9% + 3 5.7 μA NA NA

600 kΩ 0.1 kΩ 0.9% + 3 570 nA NA NA

6 MΩ50.001 MΩ 0.9% + 3 100 nA/10 MΩ NA NA

60 MΩ50.01 MΩ 1.5% + 3 100 nA/10 MΩ NA NA

Diode3

2 V 0.001 V 0.9% + 2 0.57 mA NA NA

Current4

60 μA10.01 μA 1.0% + 2 NA < 2.5 V/1 kΩ NA

600 μA10.1 μA 1.0% + 2 NA < 2.5 V/1 kΩ NA

6 A2,5 0.001 A 1.0% + 3 NA < 0.2 V/0.005 Ω NA

10 A2, 3 0.01 A 1.0% + 3 NA < 0.4 V/0.005 Ω NA

Notes for DC voltage specications:

1. The accuracy of the 600 mV range is specied after the Null function is used to subtract the thermal effect (by shorting the test leads).

2. For VZLOW (low input impedance) measurements, auto-ranging is disabled and the multimeter’s range is set to 600 V in the manual

ranging mode.

Notes for resistance specications:

1. Overload protection: 600 Vrms for short circuits with < 0.3 A current.

2. Maximum open voltage is < +3 V.

3. Built-in buzzer beeps when the resistance measured is less than 23 Ω ± 10 Ω. The multimeter can capture intermittent measurements longer

than 1 ms.

4. The accuracy of the 600 Ω to 6 kΩ range is specied after the Null function is used to subtract the test lead resistance and thermal effect (by

shorting the test leads).

5. For the ranges of 6 MΩ and 60 MΩ, the RH is specied for < 60%.

Notes for diode specications:

1. Overload protection: 600 Vrms for short circuits with < 0.3 A current.

2. Built-in buzzer beeps continuously when the voltage measured is less than 50 mV and beeps once for forward-biased diode or semiconductor

junctions measured between 0.3 V and 0.8 V (0.3 V ≤ reading ≤ 0.8 V).

3. Open voltage for diode: < +3 V DC.

4. The maximum display for diode measurements is 2100 counts.

Notes for DC current specications:

1. Overload protection for 60 μA to 600 μA range: 600 Vrms for short circuits with < 0.3 A current.

2. Overload protection for 6 A to 10 A range: 11 A/1000 V; 10 × 38 mm fast-acting fuse.

3. Specication for 10 A range: 10 A continuous. Add 0.3% to the specied accuracy when measuring signals > 10 A to 20 A for 30 seconds

maximum. After

measuring currents > 10 A, cool down the multimeter for twice the duration of the measured time before proceeding with

low current measurements.

4. Only applicable for the U1232A/U1233A model

5. DC current range of 0.6 μA to 1 μA is not measureable on the U1232A and U1233A models.

05 | Keysight | U1230 Series Handheld Digital Multimeters (DMMs) – Data Sheet

Electrical Specications (continued)

AC specications

True rms AC voltage and AC current specications

Function Range Resolution

Accuracy ± (% of reading +

counts of least signicant digit) Burden voltage/shunt

45 Hz to 500 Hz 500 Hz to 1 kHz Where (applicable)

Voltage 600 mV 0.1 mV 1.0% + 3 2.0% + 3 NA

6 V 0.001 V 1.0% + 3 2.0% + 3 NA

60 V 0.01 V 1.0% + 3 2.0% + 3 NA

600 V 0.1 V 1.0% + 3 2.0% + 3 NA

600 (VZLOW)30.1 V 2.0% + 3 4.0% + 3 NA

Current160 μA20.01 μA 1.5% + 3 NA < 2.5 V/1 kΩ

600 μA20.1 μA 1.5% + 3 NA < 2.5 V/1 kΩ

6 A3,5 0.001 A 1.5% + 3 NA < 0.2 V/0.005 Ω

10 A3, 4 0.01 A 1.5% + 3 NA < 0.4 V/0.005 Ω

Notes for true rms ac voltage specications:

1. Overload protection: 600 Vrms. For millivolt measurements, 600 Vrms for short circuits with < 0.3 A current.

2. Input impedance: 10 MΩ (nominal) in parallel with < 100 pF.

3. VZLOW input impedance: 3 kΩ (nominal).

Notes for ac current specications:

1. AC current measurement not available for U1231A model.

2. Overload protection for 60 μA to 600 μA range: 600 Vrms for short circuits with < 0.3 A current.

3. Overload protection for 6 A to 10 A range: 11 A/1000 V; 10 × 38 mm fast-acting fuse.

4. Specication for 10 A range: 10 A continuous. Add 0.3% to the specied accuracy when measuring signals > 10 A to 20 A for 30 seconds

maximum. After measuring currents > 10 A, cool down the multimeter for twice the duration of the measured time before proceeding with

low current measurements.

5. AC current range of 0.6 μA to 300 μA is not measureable on the U1232A and U1233A models

Capacitance specications

Range Resolution

Accuracy± (% of reading +

counts of least signicant digit)

Measuring rate (at full scale)U1231A/U1232A/U1233A

1000 nF 1 nF 1.9% + 2 4 times/second

10 μF 0.01 μF 1.9% + 2 4 times/second

100 μF 0.1 μF 1.9% + 2 4 times/second

1000 μF 1 μF 1.9% + 2 1 time/second

10 mF 0.01 mF 1.9% + 2 0.1 time/second

1. Overload protection: 600 Vrms for short circuits with < 0.3 A current.

2. The accuracy of for all ranges is specied based on a lm capacitor or better, and after the Null function is used to subtract the test lead

resistance and thermal effect (by shorting the test leads).

3. The maximum display is 1200 counts.

06 | Keysight | U1230 Series Handheld Digital Multimeters (DMMs) – Data Sheet

Electrical Specications (continued)

Temperature specications

Thermal type Range Resolution

Accuracy± (% of reading + counts of

least signicant digit)

U1233A

K–40 °C to 1372 °C 0.1 °C 1% + 1 °C

–40 °F to 2502 °F 0.1 °F 1% + 1.8 °F

1. The specication above is specied after 60 minutes of warm up time. If the unit is exposed during storage in high humidity (condensing)

environment, 120 minutes of operating time is required instead.

2. The accuracy does not include the tolerance of the thermocouple probe.

3. Do not allow the temperature sensor to contact a surface that is energized above 30 Vrms or 60 V DC. Such voltages poses a shock hazard.

4. Ensure that the ambient temperature is stable within ±1 ºC and that the Null function is used to reduce the test lead’s thermal effect and

temperature offset. Before using Null function, set the multimeter to measure temperature without ambient compensation (°C) and keep

the thermocouple probe as close as possible to the multimeter (avoid contact with any surface that has a different temperature from the

ambient temperature).

5. When measuring temperature with respect to any temperature calibrator, try to set both the calibrator and multimeter with an external

reference (without internal ambient compensation). If both the calibrator and multimeter are set with internal reference (with internal

ambient compensation), some deviations may show between the readings of the calibrator and multimeter, This difference is caused from

the calibrator and multimeters’s ambient compensation. The deviation can be reduced by keeping the multimeter close to the output

terminal of calibrator.

6. The temperature calculation is specied according to the safety standards of EN/IEC-60548-1and NIST175.

7. The approximate ambient temperature (cold-junction compensation) is shown on the display when you have an open thermocouple.The

open thermocouple message may be due to broken (open) probe or because no probe is installed into the input jacks of the multimeter.

8. For temperature measurement on U1233A, the type-K thermocouple probe and adapter such as the U1186A (purchase separately) is

required.

9. For auxillary temperature measurement on U1231A & U1232A, a temperature module such as the U1586B (purchase separately) is required.

Frequency specications

Range Resolution

Accuracy± (% of reading + counts of

least signicant digit)

Minimum input frequencyU1231A/U1232A/U1233A

99.99 Hz 0.01 Hz 0.1% + 2

5 Hz

999.9 Hz 0.1 Hz 0.1% + 2

9.999 kHz 1 Hz 0.1% + 2

99.99 kHz 10 Hz 0.1% + 2

1. Overload protection: 600 V; input signal is < 20,000,000 V × Hz (product of voltage and frequency).

07 | Keysight | U1230 Series Handheld Digital Multimeters (DMMs) – Data Sheet

Electrical Specications (continued)

Frequency sensitivity specications

For voltage measurements

Input range Minimum sensitivity (rms sine wave)

Maximum input for specied accuracy1

5 Hz to 50 kHz

U1231A U1232A U1233A

600 mV in Scale mode 50 mV 50 mV 50 mV

600 mV 120 mV 120 mV 120 mV

6 V 0.6 V 0.6 V 0.6 V

60 V 5.0 V 5.0 V 5.0 V

600 V 50 V 50 V 50 V

1. Maximum input for specied accuracy, refer to “AC specications” on page 106 of the User Guide.

For current measurements

Input range Minimum sensitivity (rms sine wave)

Maximum input for specied accuracy1

45 Hz to 5 kHz

U1232A U1233A

60 μA 30 μA 30 μA

600 μA 30 μA 30 μA

6 A 0.5 A 0.5 A

10 A 0.5 A 0.5 A

1. Maximum input for specied accuracy, refer to “AC specications” on page 106 of the User Guide.

Scale transfer (mV)

Range Resolution

Accuracy ± (% of reading + counts of least signicant digit)

U1231A/U1232A/U1233A

DC 600 mV 0.1 mV 0.5% + 22

AC 600 mV 0.1 mV 1.0 % + 3 @ 45 Hz to 500 Hz

2.0 % + 3 @ 500 Hz to 1 kHz

1. Overload protection: 600 Vrms for short circuits with < 0.3 A current.

2. The accuracy of the DC 600 mV range is specied after the Null function is used to subtract the thermal effect (by shorting the test leads).

3. Input impedance: 10 MΩ (typical).

08 | Keysight | U1230 Series Handheld Digital Multimeters (DMMs) – Data Sheet

Electrical Specications (continued)

Display update rate (approximate)

Function

Times/second

U1231A U1232A/U1233A

AC V (V or mV) 5 5

DC V (V or mV) 5 5

AC V/DC V (VZLOW) 1 1

Scale transfer (mV) 5 5

Ω5 5

Diode 5 5

Capacitance 4 (< 100 μF) 4 (< 100 μF)

DC A (μA, mA, or A) NA 5

AC A (μA, mA, or A) NA 5

Frequency 1 (> 10 Hz) 1 (> 10 Hz)

09 | Keysight | U1230 Series Handheld Digital Multimeters (DMMs) – Data Sheet

General Specications

Parameter U1231A/U1232A/U1233A

Power supply Battery type –4 × 1.5 V AAA Alkaline battery (ANSI/NEDA 24A or IEC LR03), or

–4 × 1.5 V AAA Zinc Chloride battery (ANSI/NEDA 24D or IEC R03)

Battery life –500 hours typical (based on new Alkaline batteries) with backlight

and ashlight disabled

Low battery indication –Low battery indicator will ash when the battery voltage drops

below approximately 4.4 V

Power consumption 450 mVA maximum (with backlight and ashlight enabled)

Fuse 10 × 38 mm 11 A/1000 V fast-acting fuse

Display Liquid crystal display (LCD) (with maximum reading of 6600 counts)

Flashlight Cool white LED (5500 K typical); luminous intensity from 2240 mcd to 5600 mcd

Operating environment –Operating temperature from –10 °C to 55 °C, 0% to 80% RH

–Full accuracy up to 80% RH for temperatures up to 30 °C, decreasing linearly to 50% RH at 55 °C

–Altitude up to 2000 meters

–Pollution degree II

Storage compliance –40 °C to 60 °C, 0% to 80% RH without batteries

Safety compliance EN/IEC 61010-1:2001, ANSI/UL 61010-1:2004, and CAN/CSA-C22.2 No. 61010-1-04

Measurement category CAT III 600 V

Electromagnetic compatibility

(EMC)

Commercial limits compliance with EN61326-1

Temperature coefcient 0.1 × (specied accuracy) / °C (from –10 °C to 18 °C, or 28 °C to 55 °C)

Common Mode Rejection Ratio

(CMRR)

> 100 dB at DC, 50/60 Hz (1 kΩ unbalanced)

Normal Model Rejection Ration

(NMRR)

> 60 dB at 50/60 Hz

Dimensions (H x W x D) 169 mm × 86 mm × 52 mm

Weight U1232A and U1233A: 371 grams (with batteries and holster)

U1231A: 365 grams (with batteries and holster)

Warranty –Three years for product1

–Three months for product’s accessories

Calibration cycle One year

Please take note that for the product, the warranty does not cover:

– Damage from contamination

– Normal wear and tear of mechanical components

– Manuals, fuses, and batteries

Specication assumptions

– Accuracy is given as ±(% of reading + counts of least signicant digit) at 23 °C ± 5 °C, with relative humidity less than 80% RH.

– AC V and AC A specications 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 VZLOW (low input impedance) voltage measurements, wait at least 20 minutes for thermal impact to cool before proceeding

with any other measurement.

10 | Keysight | U1230 Series Handheld Digital Multimeters (DMMs) – Data Sheet

Ordering Information

Standard shipped items

Standard U1231A, U1232A and U1233A include: –Quick Start Guide

–Certicate of Calibration (CoC)

–U1167A 4 mm Tips probes test leads

–4 x 1.5 V batteries

Recommended accessories

U1174A Soft carrying case

U1168A Standard test lead kit

U1173A IR-to-USB cable

U1171A Magnetic hanging kit

U1186A Thermocouple (K-Type) and Temperature Probe Adapter

Note: For temperature measurement on the U1233A, a type-K

thermocouple probe and adapter such as the U1186A (purchased

separately) is recommended. It is only compatible with the U1233A.

U1586B Temperature Module

Note: For auxillary temperature measurement on the U1231A and

U1232A, a temperature module such as the U1586B (purchased

separately) is recommended.

11 | Keysight | U1230 Series Handheld Digital Multimeters (DMMs) – Data Sheet

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12 | Keysight | U1230 Series Handheld Digital Multimeters (DMMs) – Data Sheet

This information is subject to change without notice.

Published in USA, August 3, 2014

5990-7550EN