DIGITAL MULTIMETER DT4200 Series

New wireless “Middle Model” DT4261 between the Standard
and High-end models of the DT4200 lineup!

2

Bluetooth® wireless technology support for recording
and managing measurement data

Now joined by the DT4261!

Bluetooth® communication with Z3210 attached to DT4261
Install the Wireless Adapter Z3210 to the DT4261 to enable Bluetooth® communications.
With the Z3210, you can transfer data directly to an Excel® file or pair the instrument with GENNECT Cross.
Z3210
For more details
GENNECT
Cross

Attach to enable Bluetooth® wireless technology

Transport to the Excel® file

Transport to GENNECT Cross

Manage measurement data using GENNECT Cross
Pair the DT4261 built in with Bluetooth® wireless technology with the free GENNECT Cross
mobile app to further data management, processing and report exporting on your mobile device.
Screen 1

Screen 2

Screen 3

Mail

Transfer data toa tablet wirelessly

Take a picture of
the test location andmap measured
values on it

View and verify
waveforms on yourmobile device like onan oscilloscope

GENNECTCross
For more details

Troubleshoot withsimple harmonic
analysis in the field

Cloud• Save data and create reports
right on the App• Share data via
cloud services or E-mail3

Safe testers that protect workers
from dangerous accidents
Hazard1

Prevent unavoidable debris from shorting themeasurement target and causing an accident.

The DT4255’s voltage input terminals incorporate a
protective fuse so that contamination of the instrument’s
internal components with iron powder or other particulatematter will not result in an internal short-circuit. The fusecan be replaced easily on site.
Hazard3

Wrong insertion
may lead to short-circuits.

Hazard2

Continued high input may result in major
accidents such as fire.

To prevent an accident, a warning function immediately
notifies the operator if the DMM receives excessively highinput.

*Red screen available on high-end models and DT4261, DT4223, DT4224 only.

Hazard4

Mistakenly measuring voltage using thecurrent range may lead to a short-circuit.

A range: Only the A and COM terminal inlets open.
V range: Only the V and COM terminal inlets open.

The DT4281, DT4282 and DT4261 use terminal shutters tokeep probes from being inserted into the wrong inlets. The
shutters block whichever terminal is not being used basedon the selected measurement function.
Hazard5

The DT4281, DT4261, DT4253, DT4255 and DT4256
eliminate the root cause of such accidents by providing
clamp-on sensor-based current measurement functionality
instead of using conventional probes.

Mistakenly tripped circuit breakers and arcs due to careless input of voltage to the resistance range
can be extremely hazardous.

Erroneous circuit-breaker activation

Arcing and sparks

The DT4223 and DT4224 feature a new proprietary function that preventsaccidents resulting from breakers that mistakenly trip due to incorrect input

Conventional digital multimeters

DT4223 / DT4224 Digital Multimeter

Voltage range
measurement circuit

Resistance range
measurement circuit

Resistance range
measurement circuit

Input-based switching of themeasurement circuit

High input impedance

Low input impedanceHigh input impedance

Low input impedance

1.5 MΩ
or greater

Constant current generation
circuit for measurement

1.5 MΩ
or greater

Constant current generation
circuit for measurement

Switch to resistance range

Switch measurement circuit

Because changing the measurement range also changes themeasurement circuit, mistakenly inputting voltage with the instrument
set to the resistance range will cause a large current to flow to thedevice, leading to hazards such as tripped circuit breakers and arcing.

Switch to resistance range

Detect input

Switch measurement circuit

The measurement circuit is switched after the instrument detects
resistance, continuity, capacitance, or diode input. Even if you
mistakenly input voltage with the instrument set to the resistance range,
the high input impedance will limit the current flowing to the instrument
to 1.5 mA or less to prevent potential hazards.

4

Measurement categories

Serviceconnection
Service
wires

Safe measurement requires use of an instrumentthat suits the measurement location.
Distribution
panel

Distribution
panel
OutletPower meterTransformer

Fixedequipment
OutletBuried wires

CAT IV

Terminal-to-ground voltage
Electric
wires

Distribution
panel

Pole-mounted
transformer

L1
100V
100V

Service wires

To ensure operators’ ability to use measuring instruments safely,
IEC 61010 classifies the locations in which instruments are used
into a series of safety-based measurement categories (ranging
from CAT II to CAT IV). Using an instrument that does not satisfy
the required safety level can lead to an electrical accident.

Line voltage:
100 VLine voltage:
200 V

N
L2

TV: 100 V

Line voltage:
100 V
Air conditioner: 200 V

Ground (0 V)

600 V

Terminal-to-ground voltage
Measurement category
suited to the location of use

High-end models

CAT III 1000 V / CAT IV 600 V

Standard models

CAT III 1000 V / CAT IV 600 V

Pocket models

CAT III 600 V/ CAT IV 300 V

Designed and manufactured in Japan toensure high quality and guaranteed with a
3-year warranty for peace of mind
All development, design, and manufacturing processes foralmost all Hioki digital multimeters are carried out at our
Head Office in Nagano Prefecture. Some of the industry’s
most advanced technological capabilities enable us todeliver products of the highest possible quality.

5

Field-Proven Strength and Usability
DT4200 series
Robust design capable of withstanding a drop from aheight of 1 m onto concrete

To test our products’ ability towithstand mechanical shock,
we repeatedly drop them from aheight of at least 1 m until they
break. This drop-testing regime
leads to more robust products
by fostering a series of design
improvements.

Drop tester

Fast, accurate measurement of the output voltage on thesecondary side of an inverter

Preventing instrument failure by keeping out dust

If dust gets into the instrument’s
enclosure, it can cause the device tofail. Since dust can get into the
instrument especially easily throughthe gap around the rotary switch, theDT4200 series incorporates adust-proof part known as an O-ringwhere the rotary switch is mounted to
improve the device’s dust resistance.

True RMS measurement for accurate measurement ofeven distorted current waveforms

Average-value method True RMS methodmeasured value
measured value

With low-pass filter off With low-pass filter on

The DT series can accurately measure the voltage on the secondaryside of an inverter, just like a power meter. Its low-pass filter rejects
harmonic components so that the fundamental wave can beisolated and accurately measured.

Current waveforms are often distorted, causing the average-value
and true RMS measurement methods to yield different results. To
obtain accurate readings, RMS measurement is indispensable.

Outstanding viewing angle so display is easy to read at
an angle or even in a dim location

Rotary switch that’s easy to operate even when
wearing gloves

Hand-free and easy to use

New L9300 test leads with integrated cap*

The DT4200 series features a display
with a wide viewing angle and abacklight function so that it’s easy toread, even when you can’t view thescreen from the front or when making
measurements in a dim location.

It’s hard to carry out work tasks smoothly when
you’re juggling a measuring instrument, probes,
recording paper, and other supplies. Field concerns
like these are resolved by the DT4200’s magnetic
strap, auto-hold function*, and ability to save results
in its internal memory. These capabilities boost work
efficiency and help reduce work times.
*The auto-hold function is available exclusively in highend, standard models and DT4261,DT4223,DT4224.
The ability to save results in internal memory is available
exclusively in high-end models.

The DT4200’s rotary switch isdesigned to be easy to turn evenwhen wearing thick work gloves, forexample while working inhazardous measurement locationsor harsh conditions.

UNLOCKCAT Ⅳ 600 V
CAT Ⅲ 1000 V

SLIDE

LOCK

Test leads L9300 now incorporate
integrated caps. The design lets
you change the measurement
category simply by sliding the test
lead’s protective finger guard.
As an added bonus, you no longer
have to worry about losing caps!
*Standard accessory for DT4261

CAT Ⅱ 1000 V

Extensive selection of probe tips that you can choose based on the measurement location, improving ease of measurement

With the DT4200, you can choose theprobe type that best suits yourmeasurement location, making it possible
to measure in areas that can’t be reachedwith conventional probes and busbars thatyou wish to clamp between probes.

With screw terminals

In deep-set locations
that can’t be reachedwith other probes*Compatible probe tips vary with the DMM model. Please

For clamping around the see page 16. The optional Connection Cable L4930 istarget busbar
required in order to use the probes shown at the left.

6High-end models

Featuring high accuracy, extensive additional functionality,
and a broad range of measurement parameters
DC V typical accuracy: ±0.025% rdg. ±2 dgt.
Measurement categories: CAT III (1000 V), CAT IV (600 V)

For electrical
work in the field

For laboratory andresearch use

Designed for maximum safety in thefield when measuring current withclamp-on sensors.

Designed for use in laboratories and
R&D applications where you wish tomeasure a wide variety of parameters.

DT4281

DT4282

DC voltage

60.000 mV to 1000.0 V

DC voltage

60.000 mV to 1000.0 V

AC voltage

60.000 mV to 1000.0 V

AC voltage

60.000 mV to 1000.0 V

DC + AC voltage

6.000 V to 1000.0 V

DC + AC voltage

6.000 V to 1000.0 V

DC current

600.00 μA to 600.00 mA

DC current

600.00 μA to 10.000 A

AC current

600.00 μA to 600.00 mA

AC current

600.00 μA to 10.000 A

AC clamp-on measurement

Frequency

AC clamp-on measurement

Frequency

ResistanceContinuity check

ResistanceContinuity check

Temperature

Diode test

Temperature

Diode test

Capacitance

Conductance

Capacitance

Conductance

AC/DC automatic detection Voltage detection function
Supported measurement parameter

AC/DC automatic detection Voltage detection function

Supported measurement parameter (with model-specific variations)

Unsupported measurement parameter*The range figures given indicate the instrument’s measurement ranges (not the range of measurable values).

7

Functions and Features

Magnetic strap frees both hands
for work
Using the magnetic strap (option)

By using the magnetic strap to secure theinstrument to the wall, you can free both
hands so that you can more easily record
measured values, significantly boosting work
efficiency.

Automatically hold display values
and save results with one touch to
the DMM’s internal memory

The display is automatically held once themeasured value stabilizes. You can savemeasurement results to the instrument’s
internal memory simply by pressing the
MEM key, making it easy to read and record
values during inspection work.

Manage measurement data on acomputerUsing the Communication Package DT4900-01 (option)

Measurement results can be downloaded to
a computer via a USB connection. Once
downloaded, you can save them as a file
(text format) or display them as a graphusing the desired interval. Results can also
be sent in real time while measurement isongoing.
*The computer and multimeter are electricallyisolated by means of optical communications sothat data can be sent with peace of mind.

Measure output voltage on thesecondary sides of inverters

Ripple voltage confirmation of DC
charging systems

Accurately measure the fundamental wave
alone by eliminating harmonic components with
the DMM’s low-pass filter function.

High-end models can detect ripple voltage
with a superposed DC signal.

With low-pass filter off

Peak value measurement / DC + AC voltage
measurement

Percentage display for
instrumentation signal measurement

4 to 20 mA / 0 to 20 mA percentageequivalent display

You can check percentage-equivalentvalues.

With low-pass filter on

114.1 V85.9 V

DC + AC measurement**DC + AC value =0V

Fundamental component

Fundamental component

Harmonic component

Harmonic component++

Display

20 mA

100%

Output 2

Display

20 mA

100%

4 mA

Input
waveform

0V

Output 1

4 mA

100 V

100.49 V√ (AC) + (DC)2

2

+Peak measurement

114.10 V-Peak measurement

85.90 V0%0%

Temperature
Pressure
Flow rate

Transducer

Display refresh rate Maximum/minimum
value display
Change the display

Measure very low currents used bygas-burning devices

DC μA range

High-end models provide a DC 600.00 μA
range for measuring burner flame currents.

BurnerIntuitive notification of continuity check
results and excessively high input witha red screen backlight and beep

Check the maximum andminimum measured
values shown on thedisplay after pressing
the MAX/MIN button.

Relative display

Decibel conversion

View relative values
using the display value
before the relative
function was enabled as
the reference.

Convert the results of AC
voltage measurement to a
decibel value relative to areference value anddisplay the results (dbm/dbv).

High-end models notify the operator of continuity
check results and excessively high input with ared screen backlight and beep, making it
possible to check measurement results intuitively.

Flame sensor
rod
Insulator

Controlboard

refresh speed tostabilize the display
when performing
measurement
characterized by a highlevel of variability.

Continuous state

Excessively high input

8Middle model

Supports wireless communication toincrease work efficiency
DC V typical accuracy: ±0.15% rdg. ±2 dgt.
Measurement categories: CAT III (1000 V), CAT IV (600 V)

Easily go wireless and manage
your data digitally
WIRELESS ADAPTER
Z3210

Multi-functional, foron-site maintenanceDT4261

Go wireless with the Z3210!
For trouble analysis in the field.

Wireless communication is
supported in combination withthe wireless adapter Z3210 (soldseparately). In addition to working
with the free "GENNECT Cross"application, the Excel® direct
input function can also be used.

DC voltage

600.0 mV to 1000 V

AC voltage

6.000 V to 1000 V(Z3210 set product)

DC + AC voltage

6.000 V to 1000 V

DC current

600.0 mA to 10.00 A

AC current

600.0 mA to 10.00 A

AC clamp-on measurement

Frequency

ResistanceContinuity check

The DT4261-90, a set of DT4261
and Z3210, is also available. It is
more economical than purchasing
the DT4261 and Z3210 separately,
and allows you to build a wirelesscommunication environment with one
purchase.

Temperature

Diode test

Capacitance

Conductance

DT4261-90

AC/DC automatic detection Voltage detection function
Supported measurement parameter

Unsupported measurement parameter

GENNECT
Cross
When Z3210 is installed*The range figures given indicate the instrument’s measurement ranges. Not the range of measurable values. Please see page 16 for details.

9Link with GENNECT Cross
Troubleshoot in the field
When combined with GENNECT Cross, the DT4261
you can perform simple harmonic analysis. Applications include harmonic measurement of power
conditioners for solar systems and problem analysisof power supply systems.

Problems that can be caused by harmonics• Equipment burn-out and destruction due to overheating• Malfunctions of power control devices• Reduced service life and efficiency for power devices

Excel® Direct Input Function
Improve work efficiency!
Labor-saving measurement withdigitalization
The wireless adapter Z3210 (sold separately)
comes standard with an Excel® direct input function.
It enables direct transfer and input of measurement data to templates created in Excel® leading toincreased work efficiency in the field.

Functions and Features

AC contacts
DC contacts

Terminal shutter closes on unused
terminals depending on the measurement function

The DT4261’s terminal shutters are linked tothe instrument’s rotary switch. They block
access to test lead terminals that aren’t being
used, making it physically impossible toinsert a lead into the wrong terminal.

Prevents incorrect current measurement with the Fuse Check function
When switching from the clamp function to
the current function, a fuse disconnection
check is automatically performed.
This allows the user to know if the fuse isbroken before current measurement, which
prevents erroneous measurement.

Automatic switching of measurement
in locations where AC and DC
voltages are mixed

When making measurements in locations
with both AC and DC voltages, automatic
switching eliminates the need to operate therotary switch and helps prevent
measurement mistakes.

UNLOCKCAT Ⅳ 600 V
CAT Ⅲ 1000 V

SLIDE

LOCK
CAT Ⅱ 1000 V

Test leads with an integrated cap
for greater convenience and safety

The L9300 test lead with an integrated cap isincluded as a standard. The finger guard canbe easily slid to switch between measurement
categories without worrying about losing thecap.

Free up hands for work with the magnetic
strap* and auto-hold function*The Magnetic Strap is sold separately

By using the magnetic strap to secure theinstrument to the wall and the auto-hold
function to automatically stop display values,
you can free your hands, making it easier torecord measured values and significantly
boosting work efficiency.

Manage measurement data on a computer

Using the Communication Package DT4900-01 (sold separately)

Measurement results can be downloaded to
a computer via a USB connection. Once
downloaded, you can save them as a file
(text format) or display them as a graph using
the desired interval. Results can also be sentin real time while measurement is ongoing.

10

Featuring the world’s fastest DMM engine*

The DT4200 series features a dedicated IC that Hioki developed
in-house in order to deliver unprecedented measurement speed.
*According to Hioki research conducted in April 2015.

Standard models

Introducing a line of field-optimized instruments thatcan be chosen based on the application at hand
DC V typical accuracy: ±0.3% rdg. ±3 dgt.
Measurement categories: CAT III (1000 V), CAT IV (600 V)

For laboratory
andresearch use
DT4252For laboratories and R&D
applications where you
wish to measure a wide
variety of parameters.

Voltagemeasurement
only model

For electrical
work in the field

Measureinstrumentation, airconditioning equipment,
and gas-burning
devices.

Measure no-load
voltage of photovoltaic
modules
at up to 1700 V DC.*

Designed for
maximum safety with
voltage measurement
terminals that areprotected by a fuse.

Delivers maximum
functionality for use
in a wide range ofsettings.

For instrumentation
4-20 mA
DT4253DT4254

DT4255Multifunction
model
DT4256

DC voltage

600.0 mV to 1000 V

DC voltage

600.0 mV to 1000 V

DC voltage

600.0 mV to 1500 V

DC voltage

600.0 mV to 1000 V

DC voltage

600.0 mV to 1000 V

AC voltage

6.000 V to 1000 V

AC voltage

6.000 V to 1000 V

AC voltage

6.000 V to 1000 V

AC voltage

6.000 V to 1000 V

AC voltage

6.000 V to 1000 V

DC + AC voltage

DT4281/4282 only

DC + AC voltage

DT4281/4282 only

DC + AC voltage

DT4281/4282 only

DC + AC voltage

DT4281/4282 only

DC + AC voltage

DT4281/4282 only

DC current

6.000 A to 10.00 A

DC current

60.00 μA to 60.00 mA

DC current

n/a

DC current

n/a

DC current

60.00 mA to 10.00 A

AC current

6.000 A to 10.00 A

AC current

n/aAC current

n/aAC current

n/aAC current

600.0 mA to 10.00 A

AC clamp-on
measurement

Frequency

AC clamp-on
measurement

Frequency

AC clamp-on
measurement

Frequency

AC clamp-on
measurement

Frequency

AC clamp-on
measurement

Frequency

ResistanceContinuity check

ResistanceContinuity check

ResistanceContinuity check

ResistanceContinuity check

ResistanceContinuity check

Temperature

Diode test

Temperature

Diode test

Temperature

Diode test

Temperature

Diode test

Temperature

Diode test

Capacitance Conductance

Capacitance Conductance

Capacitance Conductance

Capacitance Conductance

Capacitance Conductance

AC/DC automatic Voltage detection
detectionfunction

AC/DC automatic Voltage detection
detectionfunction

AC/DC automatic Voltage detection
detectionfunction

AC/DC automatic Voltage detection
detectionfunction

AC/DC automatic Voltage detection
detectionfunction

Supported measurement parameter

Supported measurement parameter (with model-specific variations)
Unsupported measurement parameter
The range figures given indicate the instrument’s measurement ranges (not the range of measurable values).

*Your instrument can be used to measure voltages in excess of 1000 V DC if and only if both of the following conditions are satisfied:
1. The circuit under measurement is isolated from the commercial power grid. 2. The circuit under measurement is isolated from ground.

11

Functions and Features

AC contacts
DC contacts

Magnetic strap and auto-hold
function free up hands for easier
work

Using the magnetic strap (option)

By using the magnetic strap to secure theinstrument to the wall and the auto-hold
function to automatically stop display values,
you can free your hands, making it easier torecord measured values and significantly
boosting work efficiency.

Measure output voltage on thesecondary sides of inverters
Accurately measure the fundamental wave by
eliminating harmonic components with the
DMM’s low-pass filter function.

With low-pass filter off

0V

With low-pass filter on

Automatic switching of
measurement in locations where
AC and DC voltages are mixed

AC/DC voltage automatic detection(DT4253,DT4254, DT4255, DT4256 only)

When making measurements in locations
with both AC and DC voltages, automatic
switching eliminates the need to operate therotary switch and helps prevent
measurement mistakes.

*The computer and multimeter are electricallyisolated by means of optical communications sothat data can be sent with peace of mind.

Percentage display for
instrumentation signal measurement

Model DT4254 can measure DC voltages up
to 1700 V, enabling you to make no-load
voltage inspections of megasolar
installations.*

The standard models’ dual display function
lets you to simultaneously check measured
values and percentage-equivalent values at
a glance.

1700 V DC measurement (DT4254 only)

4 to 20 mA percentage-equivalent display (DT4253 only)

Polarity detection and notification

Certain standard models can detect a load
voltage in excess of -10 V and notify theoperator with a red LED and beep.

Output Display(DT4254,DT4255, DT4256 only)

Values are converted
to percentages anddisplayed.

4 mA

0%

20 mA

100%

Pressure

Fundamental component

Harmonic component

Harmonic component

Flow rate+

Measure very low currents used bygas-burning devices
DC μA range (DT4253 only)

Model DT4253 provides a DC 60.00 μA
range for measuring burner flame currents.

Intuitive notification of continuity
check results and excessively highinput with a red LED and beep
Standard models notify the operator of continuity
check results and excessively high input with a
red LED and beep, making it possible to checkmeasurement results intuitively.

Flamesensor rod

Transducer

Thorough prevention of shortcircuit accidents

Voltage measurement terminal fuse (DT4255 only)

When using the resistance measurement function, a protective circuit
functions to prevent a short-circuit accident in the event of erroneous
operation such improperly supplying voltage input. Even if ashort-circuit occurs inside the tester, a current-limiting resistor will limit
any short-circuit current while a fast-blow fuse quickly and reliably
disconnects the tester circuitry, preventing a short-circuit accident.
Fuse capacity:
AC: 50 kA
DC: 30 kA

A: 0.63 A/1000 V fuse

Insulator

Controlboard

Measured values can be displayed in realtime on a computer, and displayed values
can be saved to a file (text format) or graphed
at a user-specified interval.

Temperature

Fundamental component

BurnerWith the Communication Package DT4900-01(option)Test no-load voltage at megasolar
installations

0V+

Use a computer in the field to saveand check measured values

B: Circuit current-limiting resistor ( 5Ω )+Continuous state

Excessively high input

COM

A

B

Protective
circuit

Testercircuitry*Your instrument can be used to measure voltages in excess of 1000 V DC if and only if both of the following conditions are satisfied:
1. The circuit under measurement is isolated from the commercial power grid. 2. The circuit under measurement is isolated from ground.

12

Featuring the world’s fastest DMM engine*

The DT4200 series features a dedicated IC that Hioki developed
in-house in order to deliver unprecedented measurement speed.
*According to Hioki research conducted in April 2015.

Pocket models

Featuring a compact body for ergonomic holdand a reliable, safe design
DC V typical accuracy: ±0.5% rdg. ±5 dgt.
Measurement categories: CAT III (600 V), CAT IV (300 V)

Circuit breakerfalse trip
prevention built-in

For electrical
work in the field

For multiple
applications

For electrical
work in the field

For multiple
applications

Delivering maximum field safety
for workers whose principal use
is voltage measurement.

For laboratories and R&D
applications to measure a wide
variety of parameters.

Delivering maximum field safety
for workers whose principal use
is voltage measurement.

For laboratories and R&D
applications to measure a wide
variety of parameters.

DT4221

DT4222

DT4223

DT4224DC voltage

600.0 mV to 600.0 V

DC voltage

600.0 mV to 600.0 V

DC voltage

600.0 mV to 600.0 V

DC voltage

600.0 mV to 600.0 V

AC voltage

6.000 V to 600.0 V

AC voltage

6.000 V to 600.0 V

AC voltage

6.000 V to 600.0 V

AC voltage

6.000 V to 600.0 V

DC + AC voltage

DT4281/4282 only

DC + AC voltage

DT4281/4282 only

DC + AC voltage

DT4281/4282 only

DC + AC voltage

DT4281/4282 only

DC current

n/a

DC current

n/a

DC current

n/a

DC current

n/aAC current

n/aAC current

n/aAC current

n/aAC current

n/a

AC clamp-on measurement

Frequency

AC clamp-on measurement

Frequency

AC clamp-on measurement

Frequency

AC clamp-on measurement

Frequency

ResistanceContinuity check

ResistanceContinuity check

ResistanceContinuity check

ResistanceContinuity check

Temperature

Diode test

Temperature

Diode test

Temperature

Diode test

Temperature

Diode test

Capacitance

Conductance

Capacitance

Conductance

Capacitance

Conductance

Capacitance

Conductance

AC/DC automatic detection Voltage detection function

AC/DC automatic detection Voltage detection function

Supported measurement parameter

AC/DC automatic detection Voltage detection function

AC/DC automatic detection Voltage detection function

Supported measurement parameter (with model-specific variations)

Unsupported measurement parameter*The range figures given indicate the instrument’s measurement ranges (not the range of measurable values).

13

Functions and Features
New DT4223 and DT4224 feature circuit breaker false trip prevention

Prevent potential accidents during
incorrect input

LoZ icon identifies switchedmeasurement circuit

Warning function
notifies you of incorrect input.

Compact and lightweight designfor outstanding ease of use

Safe enough for measuring
voltage at distribution panels andservice wires

Intuitive notification of excessively
high input with flashing screen

The measurement circuit switches only after
detecting the appropriate signal.This way,even if you mistakenly input voltage, accidents
due to tripped breakers or arcs will not
happen. (see page 2)

The small form factor fits in your handperfectly and is easily stowable, making it
convenient to transport to and from the field
and boosting work efficiency. The
lightweight design also ensures that pocket
models are easy to work with.

When the instrument detects resistance,
continuity, capacitance, or diode input, theLoZ icon is shown on the display, allowing
you to identify at a glance whichmeasurement circuit has been selected.

Despite a compact body, the pocket models
can be used to measure voltage at
distribution panels and service wires in CAT
III (600 V), CAT IV (300 V) situations.

The instrument’s display flashes red to warn
you when voltage has been mistakenly input
while the instrument is set to the resistance
range.

The pocket digital multimeters notify theoperator of excessively high input by flashing
the screen, making it possible to checkmeasurement results intuitively.

Card HiTester 3244

During measurement

DT4221

Immediate display ofmeasurement results

Beep
AC contacts
DC contacts

Automatic switching of
measurement in locations where
AC and DC voltages are mixed

Detect voltage simply by holding
the instrument against a wire

AC/DC voltage automatic detection (DT4221, DT4223 only)

Voltage detection function (DT4221, DT4223 only)

When making measurements in locations
with both AC and DC voltages, automatic
switching eliminates the need to operate therotary switch and helps prevent
measurement mistakes.

Easily detect voltage with the built-in sensor.
Results are communicated with a beep.

Fast measurement for outstanding
ease of use
Measured values are displayed quickly tofacilitate quick testing. The difference isclear when you compare the measurement
speed with that of the Hioki Card HiTESTER3244-60.

14

DT4200 Series Basic Comparison

DT4281

DT4282 DT4261 / DT4261-90*1 DT4252

DT4253DT4254

DT4255

DT4256

DT4221

DT4222

DT4223

DT4224

Basic Characteristics

Yes

Yes

±0.025% rdg. ±2 dgt.

±0.15% rdg. ±2 dgt.

True RMS
DC V basic accuracy

Yes±0.3% rdg. ±5 dgt.

Yes
±0.3% rdg. ±3 dgt.

±0.5% rdg. ±5 dgt.

Measurement items (Typical ranges are indicated; may not reflect maximum or minimum measurable signal)
DC voltage

60 mV to 1000 V

600 mV to 1000 V

AC voltage

60 mV to 1000 V

6 V to 1000 V

DC V + AC V

6 V to 1000 V

6 V to 1000 V

DC A current

600 μA to 600 mA 600 μA to 10 A

60 mA to 10 A

6 A to 10 A 60 μA to 60 mA

AC A current

600 μA to 600 mA 600 μA to 10 A

60 mA to 10 A

6 A to 10 A

AC clamp

10 A to 1000 A

n/a

10 A to 1000 A

n/aResistance60 Ω to 600 MΩ

60 Ω to 600 MΩ

Temperature-40℃ to 800℃

n/a

Capacitance

1 nF to 100 mF

1 μF to 10 mF

Frequency

99 Hz to 500 kHz

99 Hz to 500 kHz

Yes

Yes

Continuity check
Diode checkn/aConductance
Voltage detection

Yes
n/a

Yes

600 mV to 1000 V

600 mV to 1500 V*2

600 mV to 1000 V

600 mV to 600 V

6 V to 1000 Vn/an/a
10 A to 1000 A

n/a

60 mA to 10 A

n/a

600 mA to 10 A

n/a

10 A to 1000 A 10 A to 1000 A
600 Ω to 60 MΩ

n/a-40℃ to 400℃

n/a

1 μF to 10 mF

n/a

n/a

n/a

600 Ω to 60 MΩ

n/a

n/a

6 V to 600 V

1 μF to 10 mF

n/a
n/a

600 Ω to 60 MΩ

n/a
1 μF to 10 mF

99 Hz to 99 kHz

Yes

Yes

n/a

Yes

n/a

n/a

Yes

n/a

Yes

n/a

n/a

n/a

1 μF to 10 mF

99 Hz to 9.9 kHz

Yes

n/a

Yes

Yes

n/a

Yes

n/a

Yes
n/a

n/a

Yes

Yes

n/a

Yes

n/a

Additional Functions
AUTO AC/DC V

n/a

Yes

Peak measurement

DC/AC

DC/AC

Analog filter
Cut-off: 630 Hz

Digital filter
Pass-band: 100/500 Hz

Display update setting

Yes

Digital filter
Pass-band: 100/500 Hz

Hold display value

AUTO/MANUAL

AUTO/MANUAL

AUTO/MANUAL

Max/Min value display

Yes

Yes

Yes

Yes

n/a

Low-pass filter

Yes

Relative display
Decibel conversion
Percentage conversion display
DC voltage polarity check

Yes
n/a

n/a

n/a

n/a

n/a

n/a

MANUAL

n/a

Yes

n/a

AUTO/MANUAL

n/a

Yes

n/a

n/a

Digital filter
Pass-band: 100/500 Hz

n/a

n/a
n/a

Yes

Yes
n/a

Yes

n/a

n/a

n/a

n/a

Data storage
Capacity
USB communication*

Max 400 data
3

Bluetooth® communication*4

Yes

n/a

Yes

n/a

Yes

Approx. 100 hours*5

Approx. 130 hours*6

n/a

n/a

n/a

n/a

Yes

n/a

Operating timeContinuous operating timePower supply

Alkaline (LR6) battery × 4/Manganese(R6P) battery × 4 Alkaline (LR6) battery × 3

Approx. 130 hours

Approx. 40 hours

Approx. 35 hours

Alkaline (LR03) battery × 4

Alkaline (LR03) battery × 1

Display
Back light
Dual display
Bar graph display

Yes

Yes

Yes

Yes

n/a

Yes

Yes

Yes

CAT Ⅲ 1000 V, CAT Ⅳ 600 V

CAT Ⅲ 600 V, CAT Ⅳ 300 V

Yes

Yes

Yes

n/a

SafetySafety standard categories CAT Ⅲ 1000 V, CAT Ⅳ 600 V CAT Ⅲ 1000 V, CAT Ⅳ 600 V
Mis-insertion prevention shutters
Circuit breaker false trip prevention

Yes
n/a

Yes
n/a

n/a

n/a

n/a

n/a

Yes

*1. Z3210 set product*2. Your instrument can be used to measure voltages in excess of 1000 V DC if and only if both of the following conditions are satisfied: 1. The circuit under measurement
is isolated from the commercial power grid. 2. The circuit under measurement is isolated from ground.
*3. Requires optional DT4900-01 Communication Package *4. Requires optional Z3210 wireless adapter *5. When using four AA alkaline batteries *6. When Z3210 is not installed

Glossary

Auto AC/DCV : Automatically detects and measures AC and DC voltage. | Peak measurement : After starting PEAK value measurement, check maximum and minimum instantaneous voltage and current values. | Low-pass filter : Cuts high frequency content to provide stable numerical values for measurement. | Display update
setting : Reduces the display value update rate to stabilize measurements. | Hold display value : Manual: press the button to freeze the display. Auto: the display
freezes automatically when the measurement value is stable. | Max/Min value display : Pressing the MAX/MIN button displays the maximum and minimum displayedmeasurement values. | Relative display : Pressing the REL button displays subsequent measurements as values relative to that displayed when the button waspressed. | Decibel conversion : Displays AC voltage measurements converted to decibel values (dbm/dbv) | Percentage conversion display : Displays 4 to 20 mA (or0 to 20 mA) signals converted to 0 to 100% values. For the DT4253, only 4 to 20 mA.

15

High-End DT4281 / DT4282(Accuracy guaranteed for 1 year, post-adjustment accuracy guaranteed for 1 year)

DC Voltage

AC Clamp (AC Current)

Range

Accuracy

60.000 mV

Input Impedance±0.2% rdg. ±25 dgt.

600.00 mV

1 GΩ or more // 100 pF or less±0.025% rdg. ±5 dgt.

6.0000 V

11.0 MΩ ±2% // 100 pF or less±0.025% rdg. ±2 dgt.

60.000 V
600.00 V

10.3 MΩ ±2% // 100 pF or less±0.03% rdg. ±2 dgt.

1000.0 V

10.2 MΩ ±2% // 100 pF or less

20 Hz to 45 Hz 45 Hz to 65 Hz 65 HZ to 1 kHz 1 kHz to 10 kHz 10 kHz to 20 kHz 20 kHz to 100 kHz

60.000 mV ±1.3% rdg. ±0.4% rdg.
±40 dgt.
600.00 mV ±60 dgt.
±1% rdg.
±60 dgt.

6.0000 V
600.00 V±1.5% rdg. ±20% rdg. ±80 dgt.
±40 dgt.
±8% rdg. ±80 dgt.

±0.9% rdg.
±40 dgt.

±0.2% rdg. ±0.3% rdg. ±0.4% rdg.
±25 dgt.
±25 dgt.
±25 dgt.

Undefined

1000.0 V±0.% rdg.
±40 dgt.

±0.7% rdg.
±40 dgt.

±3.5% rdg.
±40 dgt.

Undefined

Undefined±0.9% rdg. ±2 dgt.

50.00 A

±0.6% rdg. ±10 dgt.

±0.9% rdg. ±10 dgt.

200.0 A

±0.6% rdg. ±4 dgt.

20.00 A

±0.6% rdg. ±4 dgt.

100.0 A

20 Hz to 45 Hz 45 Hz to 65 Hz 65 HZ to 1 kHz 1 kHz to 10 kHz 10 kHz to 20 kHz 20 kHz to 100 kHz±1.2% rdg.
±65 dgt.

6.0000 V
60.000 V
600.00 V

Undefined

1000.0 V±0.4% rdg.
±30 dgt.
±0.3% rdg. ±0.4% rdg.
±30 dgt.
±30 dgt.
±0.4% rdg.
±45 dgt.

±1.5% rdg.
±45 dgt.

±3.5% rdg.
±125 dgt.

Undefined

Undefined

1 MΩ ±4% // 100 pF or lessCrest factor

3 or less (1.5 or less for the 1000.0 V range)±0.6% rdg. ±2 dgt.

DC A Measurement
Range

600.00 μA*1. DT4282 only

Accuracy / Display update : slow Accuracy / Display update : normal Shunt Resistance

6000.0 μA±0.05% rdg. ±5 dgt.

600.00 mA±0.15% rdg. ±5 dgt.

60.000 mA*16.0000 A±0.05% rdg. ±25 dgt.
±0.05% rdg. ±5 dgt.

±0.05% rdg. ±25 dgt.
±0.2% rdg. ±25 dgt.

10m Ω

±0.2% rdg. ±5 dgt.

AC A Measurement
Range

1Ω

±0.15% rdg. ±5 dgt.

±0.2% rdg. ±5 dgt.

10.000 A*1

101 Ω

Range

Accuracy

20 Hz to 45 Hz

45 Hz to 65 Hz

65 Hz to 1 kHz

1 kHz to 10 kHz

10 kHz to 20 kHz

600.00 μA±1.0% rdg.
±20 dgt.

±0.6% rdg.
±20 dgt.

±0.6% rdg.
±20 dgt.

±2% rdg.
±20 dgt.

±4% rdg.
±20 dgt.

6000.0 μA±1.0% rdg.
±5 dgt.

±0.6% rdg.
±5 dgt.

±0.6% rdg.
±5 dgt.

±2% rdg.
±5 dgt.

±4% rdg.
±5 dgt.

60.000 mA±1.0% rdg.
±20 dgt.

±0.6% rdg.
±20 dgt.

±0.6% rdg.
±20 dgt.

±1% rdg.
±20 dgt.

±2% rdg.
±20 dgt.

600.00 mA±1.0% rdg.
±5 dgt.

±0.6% rdg.
±5 dgt.

±0.6% rdg.
±5 dgt.

±1.5% rdg.
±10 dgt.

Undefined

6.0000 A*1

Undefined±0.8% rdg.
±20 dgt.

±0.8% rdg.
±20 dgt.

Undefined

Undefined

Undefined±0.8% rdg.
±5 dgt.

±0.8% rdg.
±5 dgt.

Undefined

Undefined

10.000 A*1

Shunt resistanceμA Range 101 Ω, mA Range 1Ω, A Range 10 mΩ

Crest factor

3 or less (Note that it applies to 1/2 of the range.)

Accuracy specification range Accuracy is not defined for measurements below 5% of range

600.00 Ω±0.03% rdg. ±10 dgt.

60.000 kΩ

±0.03% rdg. ±2 dgt.

6.0000 MΩ

±0.15% rdg. ±4 dgt.

Range

600.0 ΩContinuity threshold

Accuracy±0.5% rdg. ±5 dgt.

Measurement Current Open-terminal Voltage
640 μA ±10%

DC 2.5 V or less20 Ω (default), 50 Ω, 100 Ω, 500 Ω

Diode Check
Range

3.600 V
Forward threshold

Accuracy±0.1% rdg. ±5 dgt.

Measurement Current Open-terminal Voltage
1.2 mA or lessDC 4.5 V or less0.15 V, 0.5 V (default), 1 V, 1.5 V, 2 V, 2.5 V, 3 V

If the reading is lower than the threshold during the forward connection, a buzzer sounds and the red backlight turns on.

640 μA ±10%96 μA ±10%9.3 μA ±10%0.96 μA ±10%±1.5% rdg. ±10 dgt.

60.00 MΩDC 2.5 V or less

96 nA ±10%±3.0% rdg. ±20 dgt.

600.0 MΩ

±8.0% rdg. ±20 dgt.

Conductance (nS)

DT4282 only
Accuracy

Measurement Current Open-circuit Voltage
96 nA ±10%±1.5% rdg. ±10 dgt.

DC 2.5 V or lessAccuracy is defined for humidity 60% RH or less. Accuracy is defined for the range
20nS or more. In the case of 300 nS or more, ±20 dgt. is added.

Capacitance Measurement
Range

1.000 nF
10.00 nF

Accuracy±1% rdg. ±20 dgt.

100.0 nF

Measurement Current

Open-circuit Voltage

32 μA ±10%

DC 2.5 V or less

±1% rdg. ±5 dgt.

1.000 μF
10.00 μF
100.0 μF

10.00 mF

DC 3.1 V or less

±2% rdg. ±5 dgt.

1.000 mF

680 μA ±20%

±2% rdg. ±20 dgt.

DC 2.1 V or lessTemperature
Thermocouple Type
K

Range

Accuracy-40.0 to 800.0 °C (-40.0 to 1472.0°F)±0.5% rdg. ±3°C (5.4°F)

The optional K Thermocouple DT4910 is used. Accuracy does not include the error of the K thermocouple.

Frequency (For AC V, DC + AC V, AC μA, AC mA, AC A)
Range

Accuracy999.99 Hz±0.005% rdg. +3 dgt.

99.999 Hz
9.9999 kHz
99.999 kHz±0.005% rdg. +3 dgt.

500.00 kHz
Measurement range

0.5 Hz or more ([----] is displayed when frequency is less than 0.5 Hz)

Pulse width
1 μs or more (DUTY ratio is 50%)
With the filter ON, accuracy is defined only for frequencies 100 Hz or less. (For ACV, DC+ACV)Peak Measurement (For AC V, DC V, DC+AC V, Clamp, DC μA, DC mA, DC A, AC μA, AC mA, AC A)
Main measurement

Continuity Check

Measurement Current Open-terminal Voltage±0.3% rdg. ±20 dgt.

60.000 Ω

100.0 mF

*1. DT4282 only
Accuracy±0.9% rdg. ±2 dgt.

Resistance Measurement

600.00 nS

5% or more of each range
With the filter ON, accuracy is defined only for frequencies
100 Hz or less. Furthermore, 2% rdg. is added.

Accuracy
specification range±0.9% rdg. ±4 dgt.

±0.9% rdg. ±10 dgt.

The optional 9010-50, 9018-50, or 9132-50 CLAMP ON PROBE is used.
Accuracy does not include the error of the clamp-on probe.
Crest factor
3 or lessAccuracy is not defined for measurements below 15% of range

Range

Input impedance±0.9% rdg. ±2 dgt.

±0.6% rdg. ±10 dgt.

600.00 kΩ

Accuracy

Range±0.9% rdg. ±4 dgt.

±0.6% rdg. ±2 dgt.

6.0000 kΩ

DC V + AC V Measurement

65 Hz to 1 kHz±0.6% rdg. ±2 dgt.

1000 A

Accuracy

60.000 V

40 Hz to 65 Hz

10.00 A

500.0 AAC Voltage
Range

Range

DT4281 only

Accuracy

DC V
Other than
DC V

Signal width

4 ms or more (single)

Accuracy±2.0% rdg. ±40 dgt.

1 ms or more (repeated)±2.0% rdg. ±100 dgt.

250 μs or more (repeated)±2.0% rdg. ±100 dgt.

1 ms or more (single)±2.0% rdg. ±40 dgt.

Decibel Conversion Measurement : Standard impedance (dBm)
4, 8, 16, 32, 50, 75, 93, 110, 125, 135, 150, 200, 250, 300, 500, 600, 800, 900, 1000, 1200 Ω(default: 600 Ω)

16

High-End General Specifications
Durability

SafetyDrop proof

Yes

Operating temperature and humidity*1-15°C to 55°C

Storage temperature and humidity*2-30°C to 60°C

Applicable standards

Safety: EN61010, EMC: EN61326; Waterproof and dustproof: IP40

*1. -15°C to 55°C (5°F to 131°F), Up to 40°C (104°F): at 80% RH or less (non-condensating),
40°C to 45°C (104°F to 113°F): at 60% RH or less (non-condensating),
45°C to 55°C (113°F to 131°F): at 50% RH or less (non-condensating)*2. 80%RH or less (non-condensating)DT4261

AC Clamp (AC Current)
Accuracy※1

Range

600.0 mV

±0.15% rdg. ±5 dgt.

60.00 V

±0.15% rdg. ±2 dgt.

1000 V±0.15% rdg. ±5 dgt.

6.000 V
600.0 V

Input Impedance
11.3 MΩ ± 2.0 %10.4 MΩ ± 2.0 %10.3 MΩ ± 1.5 %Accuracy
40 Hz to 500 Hz
500 Hz to 1 kHz±0.9% rdg. ±3 dgt.

±1.5% rdg. ±3 dgt.

1000 V

Input Impedance
11.3 MΩ ± 2.0% // 100 pF or less10.4 MΩ ± 2.0% // 100 pF or less10.3 MΩ ± 1.5% // 100 pF or less

DC A Measurement
Range

Accuracy

Input Impedance

6.000 A

±0.5% rdg. ±3 dgt.

35 mΩ ±30%600.0 mA
10.00 A

Accuracy specification range Add ±2 dgt. when measuring at or below 5% of range.

10.00 A

500 Hz to 1 kHz

20.00 A50.0 A

100.0 A

±0.9% rdg. ±3 dgt.

±1.5% rdg. ±3 dgt.

Accuracy
40 Hz to 500 Hz
500 H to 1 kHz±1.4% rdg. ±3 dgt.

Crest factor±1.8% rdg. ±3 dgt.

Input Impedance
35 mΩ ±30%

3 at up to 4000 counts and reduces linearly to 2 at 6000 counts.

±0.7% rdg. ±5 dgt.

Continuity OFF threshold

Measurement Current Open-terminal Voltage
Approx. 200 μA

DC 2.0 V or lessApprox. 25 Ω or less (continuous buzzer sound, red backlight on)
Approx. 245 Ω or more (buzzer sound off, red backlight off)

Diode Check
Range

Forward threshold

Accuracy±0.7% rdg. ±5 dgt.

60.00 kΩ

±0.7% rdg. ±3 dgt.

6.000 MΩ

±0.9% rdg. ±3 dgt.

6.000 kΩ
600.0 kΩ60.00 MΩ

±1.5% rdg. ±3 dgt.

Accuracy guarantee condition

Accuracy±0.5% rdg. ±5 dgt.

Measurement Current Open-terminal Voltage
Approx. 200 μA

DC 2.0 V or lessIntermittent buzzer sound at 0.15 V to 1.8 V, continuous buzzer
sound at less than 0.15 V, red backlight on.

Measurement Current Open-terminal Voltage
Approx. 200 μA

Approx. 100 μA
Approx. 10 μA
Approx. 1 μA

DC 2.0 V or lessApprox. 100 nA
Approx. 10 nA

After zero adjustment has been performed

Capacitance Measurement
Range

1.000 μF

100.0 μF

1.000 mF

Accuracy±1.9% rdg. ±5 dgt.
±5.0% rdg. ±20 dgt.

Measurement Current Open-terminal Voltage

Approx. 10 n,100 n,1 μA

Approx. 100 n,1 μ,10 μA

Approx. 1 μ,10 μ,100 μA DC 2.0 V or lessApprox. 10 μ,100 μ,200 μA
Approx. 100 μ,200 μA

Frequency
Range

99.99 Hz999.9 Hz99.99 kHz (V AC Only)

Accuracy

Continuity ON threshold

1.800 V

Range

600.0 Ω9.999 kHzContinuity Check
600.0 ΩResistance Measurement

10.00 mF

Accuracy specification range For ACV, minimum 1% of range; add ±5 dgt. when measuring at or below 5% of range.

Range

The optional 9010-50, 9018-50, or 9132-50 CLAMP ON PROBE is used.
Accuracy does not include the error of the clamp-on probe.
Crest factor
3 or lessAccuracy specification range Minimum 1% of range; add ±5 dgt. when measuring at or below 5% of range

10.00 μF

AC A Measurement

6.000 A

10.00 A

500 A

3 at up to 4000 counts and reduces linearly to 2 at 6000 counts.
Crest factor
1000 V range only: 2 at up to 750 counts, linearly decreasing to
1.5 at 1000 counts.
Accuracy specification range For ACV, minimum 1% of range; add ±5 dgt. when measuring at or below 5% of range.

600.0 mA

Accuracy

40 Hz to 500 Hz

1000 AAC Voltage

Range

Range

200.0 A

*1. Add ±1 dgt. when measuring at or below 5% of range

60.00 V
600.0 V

Between the mA and COM terminals: 600 mA DC/600 mA AC
Between the A and COM terminals: 10 A DC/10 A AC

Maximum rated current
between terminals(Accuracy guaranteed for 1 year, post-adjustment accuracy guaranteed for 1 year)

DC Voltage

6.000 V

Between the V and COM terminals: 1000 V DC/ACTEST LEAD L9207-10, Instruction Manual, LR6 alkaline battery × 4

93W × 197H × 53D mm (3.66″W × 7.76″H × 2.09″D),
650 g (23 oz.) (including batteries)

Range

CAT Ⅲ 1000 V, CAT Ⅳ 600 V

Accessories

Dimensions / Weight

MiddleMaximum rated voltage
betweeninput terminals and ground
Maximum rated voltage
between terminals

Accuracy±0.1% rdg. +1 dgt.

17Middle General Specifications
Durability

SafetyDrop proof

Yes

Operating temperature and humidity*1
Storage temperature and humidity*-25℃ to 65℃

2-30℃ to 70℃
Safety: EN61010, EMC: EN61326; Waterproof and dustproof: IP54*3

Applicable standards*1: 80% RH or less at up to 40°C (non-condensating), linearly decreases from 80% RH at
40°C to 25% RH or less at 65°C (non-condensating)*2: 80% RH or less (non-condensating) *3: Do not use in wet conditions.

Maximum rated voltage between
input terminals and ground
Maximum rated voltage
between terminals
Maximum rated current
between terminals

CAT Ⅲ 1000 V, CAT Ⅳ 600 V
Between the V and COM terminals: 1000 V DC/AC
Between the A and COM terminals: 10 A DC/10 A AC

Accessories

Dimensions / Weight

TEST LEAD L9300
L9300, Instruction Manual, LR6 alkaline battery × 3

87W × 185H × 47D mm (3.43″W × 7.28″H × 1.85″D),
480 g (16.9 oz.) (including batteries)

Standard DT4252 / DT4253 / DT4254 / DT4255 / DT4256(Accuracy guaranteed for 1 year, post-adjustment accuracy guaranteed for 1 year)

DC Voltage*1. DT4252 only

*2. DT4254 only

Range

Accuracy

Input ImpedanceHigh precision
600 mV range*1±0.2% rdg. ±5 dgt.

10.2 MΩ ±1.5%600.0 mV

±0.5% rdg. ±5 dgt.

6.000 V

60.00 V11.2 MΩ ±2.0%
10.3 MΩ ±2.0%±0.3% rdg. ±3 dgt.*3

600.0 V
1000 V

1500 V*2

10.2 MΩ ±1.5%±0.3% rdg. ±3 dgt.*4*2. Your instrument can be used to measure voltages in excess of 1000 V DC if and only if both of the following conditions are satisfied:
1. The circuit under measurement is isolated from the commercial power grid. 2. The circuit under measurement is isolated from ground.
*3. DT4254,DT4255, DT4256 only, DT4252, DT4253 is ±5 dgt. *4. 0 to 1000 V, 1001 V to 1700 V: ±0.2% rdg. ±5 dgt.

60.00 V
600.0 V

40 Hz to 500 Hz

500 Hz or more to 1 kHz±0.9% rdg. ±3 dgt.

±1.8% rdg. ±3 dgt.

AUTO V (Identification)

10.3 MΩ ±2.0% // 100 or less10.2 MΩ ±1.5% // 100 or less

DT4253, DT4254, DT4255, DT4256 only
500 Hz or more to 1 kHz±2.0% rdg. ±3 dgt.

±4.0% rdg. ±3 dgt.

Input ImpedanceDT4252, DT4253, DT4256 only
Accuracy600.0 μA

±0.8% rdg. ±5 dgt.

6.000 mA

±0.8% rdg. ±5 dgt.

±0.8% rdg. ±5 dgt.*1

60.00 mA

600.0 mA

±0.9% rdg. ±5 dgt.

±0.9% rdg. ±3 dgt.*2

6.000 A

±0.9% rdg. ±3 dgt.*2

10.00 A

DT4253

Input Impedance
1 kΩ ±5%
1 kΩ ±5%15 Ω ±40%15 Ω ±40%*1

35 mΩ ±30%35 mΩ ±30%35 mΩ ±30%

DT4256

Approx. 200 μA

AC A Measurement

Approx. 245 Ω or more

Accuracy

500 Hz or more to 1 kHz±1.4% rdg. ±3 dgt.

±1.8% rdg. ±3 dgt.

600.0 mA*1

±1.4% rdg. ±5 dgt.

10.00 A

±1.4% rdg. ±3 dgt.

DT4252, DT4253, DT4255, DT4256 only
Accuracy±0.5% rdg. ±5 dgt.*1

Measurement Current Open-terminal Voltage
Approx. 0.5 mA

DC 5.0 V or less

Buzzer sound intermittently at 0.15 V to 1.5 V, the red LED flashes.

AC Clamp (AC Current)

DT4253, DT4255, DT4256 only
Accuracy

Range

40 Hz to 1 kHz

10.00 A
20.00 A50.0 A±0.9% rdg. ±3 dgt.

200.0 A
500 A

The optional 9010-50, 9018-50, or 9132-50 CLAMP ON PROBE is used.
Accuracy does not include the error of the clamp-on probe.
Crest factor
3 or lessAccuracy specification range Minimum 1% of range; add ±5 dgt. when measuring at or below 5% of range.

Resistance Measurement
Range

DT4252, DT4253, DT4255, DT4256 only

Accuracy

Measurement Current Open-terminal Voltage

600.0 Ω±0.7% rdg. ±5 dgt.

60.00 kΩ

±0.7% rdg. ±3 dgt.*1

6.000 MΩ

±0.9% rdg. ±3 dgt.*1

6.000 kΩ

600.0 kΩApprox. 200 μA±1.5% rdg. ±3 dgt.*1

Approx. 100 μA
Approx. 10 μA
Approx. 1 μA

DC 1.8 V or lessApprox. 100 nA
Approx. 10 nA

Accuracy guarantee condition After zero adjustment has been performed.

DT4252, DT4256 only

40 Hz to 500 Hz

DC1.8 V or lessApprox. 25 Ω or less (continuous buzzer sound, red LED lights)*1. DT4255 : ±0.5% rdg. ±8 dgt.

60.00 MΩ

*1. DT4256: ±1.8% rdg. ±15 dgt. Input Impedance: 35 mΩ ±30%
*2. DT4252: ±0.9% rdg. ±5 dgt.

Input Impedance±1.8% rdg. ±5 dgt.

35 mΩ ±30%

±1.8% rdg. ±3 dgt.

35 mΩ ±30%35 mΩ ±30%

3 at up to 4000 counts and reduces linearly to 2 at 6000 counts.

Accuracy specification range Minimum 1% of range; add ±5 dgt. when measuring 300 counts or less.
*1. DT4256 only

Measurement Current Open-terminal Voltage±0.7% rdg. ±5 dgt.

Continuity OFF threshold1000 A±0.8% rdg. ±5 dgt.

Crest factor

600.0 ΩDT4252, DT4253, DT4255, DT4256 only
Accuracy

Continuity ON threshold

3 at up to 4000 counts and reduces linearly to 2 at 6000 counts.
For AC V, minimum 1% of range; add ±5 dgt. when measuring at or below 5% of range.
With the filter ON,the accuracy is not specified at 100/500 Hz or more.

60.00 μA

6.000 A

Range

100.0 A

Range

50 Hz / 60 Hz

AC 80 V to AC 600 V

Continuity Check

900 kΩ ±20%1800 kΩ ±20%*1

DC A Measurement

Detection Target Frequency

During voltage detection, a continuous buzzer sounds and the red LED lights up.

11.2 MΩ ±2.0% // 100 pF or less

*1. DT4254

Range

Lo

Forward thresholdDC, 40 Hz to 500 Hz

Crest factor
Accuracy
specification range

DT4252

AC 40 V to AC 600 V

1.500 V

Accuracy600.0 VHi

Input Impedance

1000 V

Range

Detection voltage range

Range

Accuracy

6.000 VDT4254, DT4255, DT4256 only

Range

Diode Check

AC Voltage
Range

Electric Charge*1. DT4252, DT4253 : ±5 dgt.

Capacitance Measurement
Range

1.000 μF
10.00 μF

100.0 μF

1.000 mF

10.00 mF

Accuracy±1.9% rdg. ±5 dgt.
±5.0% rdg. ±20 dgt.

DT4252 ,DT4253, DT4255, DT4256 only
Measurement Current

Approx. 10 nA, 100 nA, 1 μA

Approx. 100 nA , 1 μA , 10 μA

Approx. 1 μA , 10 μA , 100 μA

Approx. 10 μA, 100 μA , 200 μA
Approx. 100 μA, 200 μA

Open-terminal Voltage

DC 1.8 V or less

18

Temperature

DT4253 only

Thermocouple Type

Range

K

-40.0 to 400.0℃

Range

Accuracy

99.99 Hz

±0.5% rdg. ±2℃

The optional K Thermocouple DT4910 is used. Accuracy does not include the error of the K
thermocouple.

Standard

Frequency

Accuracy999.9 Hz

±0.1% rdg. +1 dgt.

9.999 kHz99.99 kHz (V AC Only)

General Specifications

Durability

SafetyDrop proof

Yes

Operating temperature and humidity*1-25℃ to 65℃ (DT4254, DT4255, DT4256)-10℃ to 50℃ (DT4252, DT4253)

Storage temperature and humidity*2-30℃ to 70℃ (DT4254, DT4255, DT4256)-30℃ to 60℃ (DT4252, DT4253)

Applicable standards

Safety: EN61010, EMC: EN61326; Waterproof and dustproof: IP42

*1. -10°C to 50°C(14°F to 122°F), Up to 40°C(104°F): at 80% RH or less(non-condensating),
40°C to 45°C (104°F to 113°F): at 60% RH or less(non-condensating),
45°C to 55°C (113°F to 131°F): at 50% RH or less (non-condensating)*1. Up to 40°C(104°F): at 80% RH or less(non-condensating),
40°C to 65°C (104°F to 149°F): reduces linearly 80% RH to 25% RH or less
*2. 80% RH or less (non-condensating)

Maximum rated voltage between
CAT Ⅲ 1000 V, CAT Ⅳ 600 V
input terminals and ground
Maximum rated voltage between
Between the V and COM terminals: DC 1000 V, AC 1000 V*1
terminals
Maximum rated current
Between the A and COM terminals: DC 10 A / AC 10 A (DT4252, DT4256)
between terminals
Between the μA ,mAand COM terminals: DC 60 mA (DT4253 only)*1. DT4254: DC 1700 V, AC 1000 VYour instrument can be used to measure voltages in excess of 1000 V DC if and only if both of
the following conditions are satisfied:
1. The circuit under measurement is isolated from the commercial power grid.
2. The circuit under measurement is isolated from ground.

Accessories

Dimensions / Weight
84W × 174H × 52D mm (3.31″W × 6.85″H × 2.05″D),
390 g (13.8 oz.) (including batteries and holster)

TEST LEAD L9207-10, Instruction Manual, LR03 Alkaline battery × 4,
Holster (attached to the instrument, with a test lead holder)

Pocket DT4221 / DT4222 / DT4223 / DT4224(Accuracy guaranteed for 1 year, post-adjustment accuracy guaranteed for 1 year)

DC Voltage

Diode Check

Range

Accuracy600.0 mV
6.000 V

Input Impedance

10.3 MΩ ±2.0%

600.0 V

Crest factor

40 Hz to 500 Hz±1.0% rdg. ±3 dgt.

500 Hz or more to 1 kHz±2.5% rdg. ±3 dgt.

±2.0% rdg. ±3 dgt.

Input Impedance
11.2 MΩ ±2.0% // 100 pF or less10.3 MΩ ±2.0% // 100 pF or less10.2 MΩ ±1.5% // 100 pF or less3 at up to 4000 counts and reduces linearly to 2 at 6000 counts.

Accuracy
specification range

For AC V, minimum 1% of range; add ±5 dgt. when measuring at or below 5% of range.

With the filter ON,the accuracy is not specified in 100/500 Hz or more.

AUTO V (Identification)
Range

DC, 40 Hz to 500 Hz

600.0 V
Crest factor
Accuracy
specification range

DT4221, DT4223 only
Accuracy±2.0% rdg. ±3 dgt.

500 Hz or more to 1kHz
±4.0% rdg. ±3 dgt.

Input Impedance
900 kΩ ±20%

3 at up to 4000 counts and reduces linearly to 2 at 6000 counts.
For AC V, minimum 1% of range; add ±5 dgt. when measuring at or below 5% of range.
With the filter ON,the accuracy is not specified in 100/500 Hz or more.

Electric Charge

DT4221, DT4223 only

Detection Voltage Range

Detection Target Frequency

AC 80 V to AC 600 V

50 Hz / 60 Hz

During voltage detection, a continuous buzzer sounds.

1.500 V

(DT4222)±0.9% rdg. ±5 dgt.

Approx. 0.2 mA

Range

Accuracy

Measurement Current

600.0 Ω±1.0% rdg. ±5 dgt.

Approx. 200 μA

Open-terminal Voltage
DC 1.8 V or less

(DT4221, DT4222)

DC 2.0 V or less

(DT4223, DT4224)

Continuity ON threshold

Continuity OFF threshold

Approx. 25 Ω or less (continuous buzzer sound)Approx. 245 Ω or more

DC 2.5 V or less

(DT4224)Range

6.000 kΩ60.00 kΩ
600.0 kΩ

6.000 MΩ
60.00 MΩDT4222, DT4223, DT4224 only

Accuracy600.0 ΩMeasurement Current

Open-terminal Voltage

Approx. 100 μA

DC 1.8 V or lessApprox. 1 μA

DC 2.0 V or lessApprox. 200 μA±0.9% rdg. ±5 dgt.

±1.5% rdg. ±5 dgt.

Accuracy guarantee condition

Approx. 10 μA

Approx. 100 nA

Range

1.000 μF

10.00 μF
100.0 μF

1.000 mF
10.00 mF

(DT4223, DT4224)

After zero adjustment has been performed.

Accuracy±1.9% rdg. ±5 dgt.
±5.0% rdg. ±20 dgt.

DT4222, DT4224 only
Measurement Current

Open-terminal Voltage

Approx. 100 n, 1 μ, 10 μA

DC 1.8 V or lessApprox. 10 n, 100 n, 1 μA

Approx. 1 μ, 10 μ, 100 μA(DT4222)

DC 2.0 V or lessApprox. 10 μ, 100 μ, 200 μA (DT4223, DT4224)
Approx. 100 μ, 200 μA

Frequency
Range

Accuracy999.9 Hz

±0.1% rdg. +2 dgt.

99.99 Hz

(DT4222)

Approx. 10 nA

Capacitance Measurement

9.999 kHzContinuity Check

Open-terminal Voltage

Approx. 0.5 mA

Resistance Measurement
Accuracy

Range
60.00 V
600.0 V

Measurement Current

10.2 MΩ ±1.5%

AC Voltage

6.000 VDT4222, DT4224 only
Accuracy

11.2 MΩ ±2.0%±0.5% rdg. ±5 dgt.

60.00 V

Range

19

PocketGeneral Specifications

Durability

SafetyDrop proof

Yes-10°C to 50°C (DT4221, DT4222)-10°C to 65°C (DT4223, DT4224)

Operating temperature and humidity*1-30°C to 60°C (DT4221, DT4222)-30°C to 70°C (DT4223, DT4224)

Storage temperature and humidity*2
Applicable standards

Maximum rated voltage between
input terminals and ground

CAT III 600 V, CAT IV 300 V

Maximum rated voltage between terminals

Between the V and COM terminals: 600 V DC/AC

Safety: EN61010, EMC; EN61326, Waterproof and dustproof: IP42

*1. -10°C to 50°C(14°F to 122°F), Up to 40°C(104°F): at 80% RH or less (non-condensating),
40°C to 45°C (104°F to 113°F): at 60% RH or less (non-condensating),
45°C to 65°C (113°F to 122°F): at 50% RH or less (non-condensating)*2. 80% RH or less (non-condensating)Accessories

Dimensions / Weight

TEST LEAD DT4911, Instruction Manual, LR03 Alkaline battery × 1,
Holster (attached to the instrument, with a test lead holder)

72W × 149H × 38D mm (2.83″W × 5.87″H × 1.50″D),
190 g (6.7 oz.) (including batteries and holster)

ModelsHigh-end models
Model no.
(order code)

DT4281

Middle models
Model no.
(order code)

DT4282DT4261

DT4261-90**Z3210 set productStandard models
Model no.
(order code)

DT4252DT4253DT4254

DT4255

DT4256

Pocket models
Model no.
(order code)

DT4221

DT4222

DT4223

DT4224

Accessories / Options
L9300 / L9207-10 / DT4911 Options (accessory)
DT4261(Bundled accessory)

DT4280/DT4250 Series(Bundled accessory)

DT4220 Series(Bundled accessory)

L9300, L4933 and L4934 probe
tips (at right) can be used on
L9207-10, DT4911 test leads.

50 mm

DC 70 VAC 33 VTEST LEAD L9300

TEST LEAD L9207-10

TEST LEAD DT4911

Exposed tip metal pin: shortwith cap
CAT III 1000 V, CAT IV 600 V
without cap
CAT II 1000 V

with cap
CAT IV 300 V, CAT III 600 V
without cap
CAT II 600 V

Cable length 95 cm (3.12 ft)
Integrated cap and protective finger guard
CAT III 1000 V, CAT IV 600 V
Exposed tip metal pin: long

CAT II 1000 V

Cable length 90 cm (2.95 ft)
with one each red and black caps

Cable length 54 cm (1.77 ft)
with one each red and black caps

CONTACT PIN SET L4933

CAT Ⅱ 600 V
CAT Ⅲ 300 V

SMALL ALLIGATOR CLIP SET L4934

L4930 Options
Compatible DMMs: DT4261,
DT4250 Series, DT4280 Series

22 mm(0.87 in)
φ3.7 mm(0.15 in)Magnet
φ6 mm(0.24 in)with one each red
and black caps
CAT III 600 V (with cap)
CAT II 600 V (without cap)
TEST PIN SET L4938

CONNECTION CABLE L4930
Length : 1.2 m (3.937 ft)

CAT III 1000 V
CAT IV 600 V
ALLIGATOR CLIP SET L4935

30 mm(1.18 in)

CAT III 600 V
BUS BAR CLIP SET L4936

CAT III 1000 V
MAGNETIC ADAPTER SET L4937

CAT II 1000 V
GRABBER CLIP L9243

CAT III 1000 V
CAT IV 600 V
Length : 1.5 m (4.9212 ft)
With coupling connectors
EXTENSION CABLE SET L4931

22 mm(0.87 in)
φ3.7 mm(0.15 in)
48 mm(1.89 in)
φ2.6 mm(0.15 in)Probe tips (at right) can beused on L4930 connection
cables.

CAT III 1000 V
CAT IV 600 V
with one each red and black caps
TEST PIN SET L4932

CAT III 600 V
BREAKER PIN L4939

AC CLAMP ON PROBES for DT4281, DT4261, DT4253, DT4255, DT4256 (Adapter 9704 required for connection)
CAT III 600 V

CAT III 600 V

CAT III 600 V

Product appearance

Model number

Rated current
Amplitude accuracy (45 Hz to 66 Hz)
Frequency characteristics
Output rate
Max. circuit voltage
DiameterDimensions, mass

9010-50

9018-50

Adapter Model 9704 is required to connect
AC CLAMP ON PROBES 9010-50, 901850 and 9132-50 to the DT4281, DT4261,
DT4253, DT4255, DT4256.

9132-50

AC 10 A, 20 A, 50 A, 100 A, 200 A, 500 A
AC 20 A, 50 A, 100 A, 200 A, 500 A, 1000 A±2% rdg. ±1% f.s.
±1.5% rdg. ±0.1% f.s.
±3% rdg. ±0.2% f.s.
40 Hz to 1 kHz:±6% rdg.
40 Hz to 3 kHz:±1% rdg.
40 Hz to 1 kHz:±1% rdg.
AC 0.2 V f.s. (For each range)
AC 600 V (50/60 Hz)
φ55 mm (2.17 in) or less, 80 × 20 mm (3.15 × 0.79 in)
φ46 mm (1.81 in) or less78W × 188H × 35D mm (3.07″W × 7.40″H × 1.38″D),100W × 224H × 35D mm (3.94″W × 8.82″H × 1.38″D),
420 g (14.8 oz.),cord length 3 m (9.84 ft)
600 g (21.1 oz.), cord length 3 m (9.84 ft)

CONVERSION ADAPTER 9704

Other options

THERMOCOUPLES (K)DT4910• Thermal junction form: exposed weld
• Sensor length: approx. 800 mm• Measurement temperature range–40 to 260°C• Allowable tolerance: ±2.5°C

COMMUNICATION PACKAGE(USB) DT4900-01• Communication cable• Communication adapter• PC software• Instruction manual
OS: Windows 10

MAGNETIC MAGNETIC
STRAP
STRAP
Z5004
Z5020

WIRELESS ADAPTER
Z3210
For DT4261
Enables Bluetooth® communication

Downloading GENNECT Cross
Data can be downloaded to tablets and smartphones using Hioki’s
dedicated apps available from the Google Play or App Store.
Search for “HIOKI” and download the “GENNECT Cross” app.

CARRYING CASE
C0200
DT4220 Series

CARRYING CASE
C0202

DT4250, DT4280 Series, DT4261

CARRYING CASE
C0201
DT4250 Series

GENNECTCross
For more details*Android, Google Play and the Google Play logo are trademarks of Google Inc.
*iOS is a registered trademark of Cisco Technology, Inc. and/or its affiliates in the UnitedStates and certain other countries.
*iPhone, iPad, iPad mini, iPad Pro and iPod touch are trademarks of Apple Inc.
*Apple and the Apple logo are trademarks of Apple Inc. App Store is a service mark of AppleInc.
*Microsoft, Windows, Windows Vista, and Excel are either registered trademarks ortrademarks of Microsoft Corporation in the United States and/or other countries.
*Company names and product names appearing in this catalog are trademarks or registeredtrademarks of various companies.
*The Bluetooth® word mark and logos are registered trademarks owned by Bluetooth SIG,
Inc. and any use of such marks by HIOKI E.E. CORPORATION is under license.
*For the latest information about countries and regions where wireless operation is currently
supported, please visit the Hioki website.

CARRYING CASE
C0207

Bag type for use with all field products

Note: Company names and product names appearing in this brochure are trademarks or registered trademarks of various companies.

DISTRIBUTED BY

HEADQUARTERS
81 Koizumi,
Ueda, Nagano 386-1192 Japan
https://www.hioki.com/

All information correct as of Aug. 27, 2021. All specifications are subject to change without notice.

series_DT4200E14-18E

Printed in Japan