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 efciently – 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 Specications
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 specied 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 specications:
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 specied 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 specications
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 specications:
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 specications:
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 specied 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 specied 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
K40 °C to 1372 °C 0.1 °C 1% + 1 °C
40 °F to 2502 °F 0.1 °F 1% + 1.8 °F
1. The specication above is specied 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 signicant 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 specied 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 coefcient 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 signicant 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
myKeysight
www.keysight.com/find/mykeysight
A personalized view into the information most relevant to you.
www.axiestandard.org
AdvancedTCA® Extensions for Instrumentation and Test (AXIe) is an
open standard that extends the AdvancedTCA for general purpose and
semiconductor test. Keysight is a founding member of the AXIe consortium.
ATCA®, AdvancedTCA®, and the ATCA logo are registered US trademarks of
the PCI Industrial Computer Manufacturers Group.
www.lxistandard.org
LAN eXtensions for Instruments puts the power of Ethernet and the
Web inside your test systems. Keysight is a founding member of the LXI
consortium.
www.pxisa.org
PCI eXtensions for Instrumentation (PXI) modular instrumentation delivers a
rugged, PC-based high-performance measurement and automation system.
Three-Year Warranty
www.keysight.com/find/ThreeYearWarranty
Keysight’s commitment to superior product quality and lower total cost
of ownership. The only test and measurement company with three-year
warranty standard on all instruments, worldwide.
Keysight Assurance Plans
www.keysight.com/find/AssurancePlans
Up to five years of protection and no budgetary surprises to ensure your
instruments are operating to specification so you can rely on accurate
measurements.
www.keysight.com/go/quality
Keysight Technologies, Inc.
DEKRA Certified ISO 9001:2008
Quality Management System
Keysight Channel Partners
www.keysight.com/find/channelpartners
Get the best of both worlds: Keysight’s measurement expertise and product
breadth, combined with channel partner convenience.
www.keysight.com/find/u1230dmm
For more information on Keysight
Technologies’ products, applications or
services, please contact your local Keysight
office. The complete list is available at:
www.keysight.com/find/contactus
Americas
Canada (877) 894 4414
Brazil 55 11 3351 7010
Mexico 001 800 254 2440
United States (800) 829 4444
Asia Pacic
Australia 1 800 629 485
China 800 810 0189
Hong Kong 800 938 693
India 1 800 112 929
Japan 0120 (421) 345
Korea 080 769 0800
Malaysia 1 800 888 848
Singapore 1 800 375 8100
Taiwan 0800 047 866
Other AP Countries (65) 6375 8100
Europe & Middle East
Austria 0800 001122
Belgium 0800 58580
Finland 0800 523252
France 0805 980333
Germany 0800 6270999
Ireland 1800 832700
Israel 1 809 343051
Italy 800 599100
Luxembourg +32 800 58580
Netherlands 0800 0233200
Russia 8800 5009286
Spain 800 000154
Sweden 0200 882255
Switzerland 0800 805353
Opt. 1 (DE)
Opt. 2 (FR)
Opt. 3 (IT)
United Kingdom 0800 0260637
For other unlisted countries:
www.keysight.com/find/contactus
(BP-09-23-14)
12 | Keysight | U1230 Series Handheld Digital Multimeters (DMMs) – Data Sheet
This information is subject to change without notice.
© Keysight Technologies, 2013 - 2014
Published in USA, August 3, 2014
5990-7550EN
www.keysight.com