KEW 1051/1052/1061/1062● Accessories
Description

Safe and Durable Design.
Wide Operating Temperature.

■Complies with IEC 61010-1 CAT Ⅳ 600V / CAT Ⅲ 1000V■Safety shutters to prevent incorrect test leads
insertion in current terminals

Test leads

O

CAT Ⅱ

CAT Ⅲ

440mA/1000V×1
10A/1000V×1

Meter

Description

MODEL

Max. 500℃ (Surface type)

8407
8408
8115
8121

Max. 700℃ (Liquid, Semi-solid)
Max. 600℃ (Air, Gas)
AC 130A / DC 180A
AC 100A

8122

AC 500A

8123

AC 1000A

Underground Service

8146
8147

AC 30AAC 70A

Transformer

Banana Ø4mm adjuster plug

8148
7146

AC 100A
Length :190mm

Carrying case

9154

Soft case (for the main unit with test leads and communication cable)

Clamp sensor

2

Meter

KEW 1051 / 1052 / 1061 / 1062

CAT Ⅳ 600V / CAT Ⅲ 1000V 1set
USB adapter+USB cable+DMM Software
Max. 500℃ (Surface type, Point material: Ceramic)

8405
8406

Transformer

High voltage sectionof a photocopierContents

7234
8241

Thermocouple Type K

Meter

DIGITAL MULTIMETER● Optional Accessories
Alligator clip
USB Communication set

Signal Level circuits ofelectronic circuitboard

8927
Fuse
10A/1000V

8926
Fuse
440ｍA/1000V

7220A
Test leads

Meter

Safety shutters are open or closed when the appropriate function is selected because they are linked with the rotation of thefunction switch.

7234
Alligator clip

8241
USB Comminication set

The Best Reliable Multimeters with
Safety Terminal Shutters

7146
Banana Ø4 adjuster plug

9154
Carrying case

Underground Service

Safety shutters open

If the DMM has the function switch
in position 1 (V, Ω, TEMP, etc) thesafet y shut ters close the input
terminals for the current measurements (μA, mA, A) and then the test
leads cannot be plugged-in.

8926
8927

CAT Ⅳ

Underground Service

Operation of the Safety Shutters

1

Contents
CAT Ⅳ 600V / CAT Ⅲ 1000V 1set

Fuse・Terminal shutters are opening or closing being linked with therotation of the function switch.

Safety shutters closed

MODEL
7220A

If the DMM has the function switch
in position 2 (current measurements) then the safety shutters automatically open making it possible
to plug-in the test leads in the input
terminals for the current measurements (μA, mA, A).

■Very wide operating temperature range

To protect us against overvoltage spikes, we must use instruments that meet the requirements for high protection standards.
The IEC (International Electrotechnical Commission) has prepared an International and European safety standard named
IEC 61010-1 with the aim of defining the safety requirements
for measuring instruments.
In particular IEC 61010-1 standard defines also the safety
Measurement areas called Categories, shortly indicated withthe abbreviation “CAT”.
These Categories start from O to CAT Ⅳ and the most dangerous one is the CAT Ⅳ. The figure above shows some area
examples of Measurement Categories.
Measurement
categoryO・From –20℃ to +55℃ for 1061/1062
・From –10℃ to +55℃ for 1051/1052

CAT Ⅱ■High specs UL standard fuses for extra safety

CAT Ⅲ

・Fuses rated at 1000V with 30kA of breaking capacity.

■Over molding case

CAT Ⅳ

・Made by “Elastomer”, a superior shock sustainable material.
Perfectly fits to hand.

Comprehensive support
for data management※except for 1051

■Large internal memory to store test data

・1062: 10,000 data in Logging mode, 100 data manually saved.
・1061: 1,000 data in Logging mode, 100 data manually saved.
・1052: 1,600 data in Logging mode, 100 data manually saved.
・Logging interval can set from 1 sec. to 30 min.

Description

ExamplesMeasuring circuits without
a MEASUREMENTCATEGORY.
For measurements performedon circuits directly connectedto the low voltage installation.
For measurements
performed in the building
installation.
For measurements
performed all the source ofthe low-voltage installation.

Signal level circuitsof electronic PCBs,
etc.
Appliances,
portableequipment, ect.
Distribution board,
circuit breaker, ect.
Overhead wire,
cable systems, ect.

● Clamp sensor Specification
AC/DC current sensor
MODEL

Conductor size
Rated current
Output voltage
Accuracy(50/60Hz)

Frequency range
Dimension
WeightAC current sensor

Leakage & AC current sensor

8115

8121

8122

8123

8146

8147

8148

φ12
AC 130A / DC 180A
AC/DC 10mV/A
AC ±1.2%rdg±0.4mV
DC ±1.2%rdg±0.4mV(This accuracy is defined
after a zero-adjustment)

φ24
AC 100A
AC 500mV/100A

φ40
AC 500A
AC 500mV/500A

φ55
AC 1000A
AC 500mV/1000A

φ24
AC 30AAC 1500mV/30A

φ40
AC 70AAC 3500mV/70A

φ68
AC 100A
AC 5000mV/100A

0 to 15A ±1.0%rdg±0.1mV
15 to 30A ±5.0%rdg

0 to 40A ±1.0%rdg±0.1mV
40 to 70A ±5.0%rdg

0 to 80A ±1.0%rdg±0.1mV
80 to 100A ±5.0%rdg

127(L)×42(W)×22(D)mm

97(L)×59(W)×26(D)mm

128(L)×81(W )×36(D)mm

Approx. 140g

Approx. 150g

Approx. 260g

170(L)×105(W)×48(D)mm 100(L)×60(W)×26(D)mm
Approx. 360g
Approx. 150g

128(L)×81(W)×36(D)mm
Approx. 240g

186(L)×129(W)×53(D)mm
Approx. 510g

±2.0%rdg±0.3mV

Top Class Multimeters

For Electrical and Electronic
Troubleshooting

For Laboratory andIndustrial Use

KEW 1051 / 1052

KEW 1061 / 1062

40Hz to 1kHz

※ Other Kyoritsu clamp sensors can be used with these DMMs, please check our website for more info. ※ Banana φ4 mm adjuster plug (7146) is required to use these sensors with the DMMs, with the exception for the 8115.

● Thermocouple Type K
Model
8405

Specification
Usage

Measurement temprature

Surface type (Point material: Ceramic)

Max. 500℃

8406

Surface type

8407

Liquid, Semi-solid

Max. 700℃

8408

Air, Gas

Max. 600℃

Tolerance (t: measurement temperature)

Response speed±2.5℃/t＝-40℃ to 333℃,±0.0075×｜t｜℃/ｔ＝333℃ to 500℃

Approx. 1.8 Sec.
Approx. 1.0 Sec.

±2.5℃/t＝-40℃ to 333℃,±0.0075×｜t｜℃/ｔ＝333℃ to 700℃
±2.5℃/t＝-40℃ to 333℃,±0.0075×｜t｜℃/ｔ＝333℃ to 600℃

1 Sec. or less

0.4 Sec.

Printer output
L0000 N ,＋12.539 VDC
L0001 N ,＋12.532 VDC
L0002 N ,＋12.532 VDC
L0003 N ,＋12.529 VDC
L0004 N ,＋12.532 VDC
L0005 N ,＋12.538 VDC
L0006 N ,＋12.541 VDC
L0007 N ,＋12.546 VDC
L0008 N ,＋12.552 VDC
L0009 N ,＋12.557 VDC
L0010 N ,＋12.555 VDC
L0011 N ,＋12.554 VDC
L0012 N ,＋12.553 VDC
L0013 N ,＋12.553 VDC

Printed items (from the left)
・L: Logging memory
・4 digit numbers: Data number
・N: Normal measurement(O: at "OL" display)(B: at "Battery warning" display)・5 digit numbers: Measurement
・VDC: Unit (VDC is DC Voltage)

Data analysis with Excel

8405

8406

8407

8408

Please read the "Safety Warnings" in the instruction manual supplied with the instrument thoroughly and completely

correct use. Failure to follow the safety rules can cause fire, trouble, electrical shock, etc. Therefore, make sure
Safety Warnings : forto operate the instrument on a correct power supply and voltage rating marked on each instrument.

■Test data can be transferred to a PC or directly to a Printer*
・Real-time data can be transferred and shown on a PC.
・Real-time transferring permits the saving of a considerable
amount of data on a PC.

Versatile Multimeters1051

For inquiries or orders :

1052

1061

DMM Application software・Stored data of internal memory can be monitored by PC.

■Data management with the software DMM Application*

2-5-20, Nakane, Meguro-ku, Tokyo, 152-0031 Japan
Phone:+81-3-3723-0131
Fax:+81-3-3723-0152

・List of measured data can be converted into Graph.
・Data can be transferred to Excel** and saved as CSV file.
*Optional accessories are required, refer to last page.
**Excel is a registered trademark of Microsoft in the US.

This leaflet was produced in January 2024. The contents of this leaflet are subject to change without notice.

LC_1051_1051_1061_1062_3_0_Jan24_AD_en1062

DMM SERIESHigh Accuracy, High Performance andReliable Measurements■Top class Accuracy■True RMS Measurement・0.02% basic DC accuracy for 1061/1062.
・0.09% basic DC accuracy for 1051/1052.

・Ensures accurate readings, avoiding errors (of up to50%) which can occur when non-sinusoidal waveforms, created by common non linear loads such
PCs, Inverters, switch-mode power supplies, etc, aremeasured.

■Dual Display

・1061/1062 : 50000 counts, 51 segments bar graph withwhite backlight display.
1051/1052: 6000 counts, 31 segments bar graph with・
white backlight display.

■Wide AC Frequency Bandwidth ※1061, 1062 only
・1062 : ACV frequency bandwidth from 10Hz to 100kHz.
・1061 : ACV frequency bandwidth from 10Hz to 20kHz.

■DC+AC True RMS Measurement ※1061, 1062 only・Accurate AC True RMS measurements also in thepresence of superimposed DC component.
・AC and DC values are displayed simultaneously via
dual display.

Versatile Digital Multimeters KEW 1051/1052● General Specification● General Specification

Measurement function:

DC Voltage, AC Voltage, DC Current, AC Current, Resistance, Frequency,
Temperature, Capacitor, Continuity Check, Diode Test
Effective value (root mean square value) detection (True RMS) and mean value detection(MEAN) can be switched during AC voltage measurement (1052 only).
The low-pass filter can be switched on/off during AC voltage or AC current measurement.
Other functions: Data Hold (D•H), Auto Hold (A•H), Range Hold (R•H), Maximum value* (MAX),
Minimum value* (MIN), Average value* (AVG), Zero Adjustment (Capacitor, Resistance),
Relative values, Save to Memory*, Auto Power Off (Approx. 20 minutes), LCD backlight. *: Formodel KEW1052 only
Display:
4-digit (LCD)……..7-segment
Main-display…....6000 counts
Sub-display…......6000 counts
Bar graph indicator…..31-segment
Polarity Indicator:…..“–” Appears automatically when the polarity is negative.
Overrange Indicator….. “ OL ”
Low-battery Indicator….“ ＋− ” Appears when the batteries become low.

Accuracy

Input Impedance
10MΩ
11MΩ

0.09+2

Overload Protection

10MΩ

※A calibrator is necessary for calibration.

1000V DC
1000V rms AC

・AC measurement can be limited to low frequency,
helping for instance voltage measurements in thepresence of variable speed motor drivers or inverters.
・The Low-pass filter can be switched ON/OFF.

AC Coupling: True RMS value detection, sine wave MEAN value detection and True RMS value calibration (KEW1052 only)

Accuracy
40 to 500Hz

50/60Hz

0.5+5

1+5

500Hz to 1kHz

Input Impedance

1.5+5

10MΩ<200pF
11MΩ<50pF
10MΩ<50pF

1000V rms AC
1000V DC・This function uses a test voltage which is lower than
0.7V (that is the typical junction voltage drop of semiconductors) thus it allows testing of resistors on a circuit board without unsoldering them.

Accuracy
0.4+1
0.5+1
1+2(0 to 40MΩ)
2+2(40 to 60MΩ)

60.00MΩMaximum Measuring Current<1.2mA<110μA<13μA<1.3μA

Open Circuit Voltage<3.5V■Selection of the reading mode ※1052, 1062 only

Range
600.0Ω

440mA Protected by a
440mA/1000V fuse.

<3.3mV/mA
0.5+5

10A Protected by A
10A/1000V fuse.

<0.1V/A

50/60Hz

True RMS value detection, sine wave

Accuracy
40Hz to 1kHz

Voltage Drop

Overload Protection<0.12mV/μA
0.75+51.5+5<3.3mV/mA

440mA Protected by a
440mA/1000V fuse.

50.000mV

10A Protected by A
10A/1000V fuse.

500.00mV
5.0000V
50.000V
500.00V<0.1V/A

Accuracy
1+2

Measuring Current(Vf=0.6V)
Approx. 0.5mA

Open Circuit Voltage<3.5V

Overload Protection
1000V rms

1000V rms

Range
−50.0 to 600.0℃<130nA

Capacitor Measurement(

Temperature Measurement(TEMP)
Accuracy
2+2℃

Overload Protection
1000V rms

Range
10.00nF
100.0nF
1.000μF
10.00μF
100.0μF
1000μFUse optional Temperature Probe: Thermocouple Type K

Frequency Measurement(Hz) AC Coupling, Maximum Reading 9999)
Range of Operation
Measuring Current
Buzzer sounds at lower than 50±30Ω Approx. <1.2mA

Open Circuit Voltage<3.5V

Overload Protection
1000V rms

Range
10.00 to 99.99Hz
90.0 to 999.9Hz
0.900 to 9.999kHz
9.00 to 99.99kHz

Accuracy
0.02+1)

Accuracy
2+10

1051

1061

1062

Display■Peak Hold function ※1062 only
■Minimum / Maximum / Average function ※except for 1051
・Can record the MIN/MAX/AVG values during themeasurement process displaying the data and theelapsed time.

2+5

1000V rms

3+5※The average value is shown by dividing the integrated record data by the
number of recording time.

■Duty cycle ratio measurement ※1061, 1062 only
・The duty cycle ratio is displayed in percentage (%).

■Decibel dBV, dBm calculation ※1061, 1062 only・Can perform logarithmic calculations on AC voltage.
※Reference resistance value:
4/8/16/32/50/75/93/110/125/135/150/200/250/300/500/600/800/900/1000/1200Ω

Model

1051

1052

1061

1062

True RMS

True RMS/MEAN

DC Voltage

600.0mV to 1000V

600.0mV to 1000V

50.000mV to 1000.0V 50.000mV to 1000.0V

Maximum count display

6000

6000

50000

50000

AC Voltage

600.0mV to 1000V

600.0mV to 1000V

500.00mV to 1000.0V 50.000mV to 1000.0V

Dual display

●

●

●

●

DC Current

600.0μA to 10.00A

600.0μA to 10.00A 500.00μA to 10.000A 500.00μA to 10.000A

Bar graph31-segment

31-segment

51-segment

51-segment

AC Current

600.0μA to 10.00A

600.0μA to 10.00A 500.00μA to 10.000A 500.00μA to 10.000A

Back light

White LEDWhite LEDWhite LEDWhite LED

Function●●

Peak hold

−

−

−

●

Max/Min/Avg

−

●

●

●

REL

●

●

●

●

Manual memory

−

●

●

●

−

●

※2
※2

※2
※2

−
2+70※23+30※23+30※2●●

Communication

−

●

●

●

Frequency response

40Hz to 1kHz

40Hz to 1kHz

10Hz to 20kHz

10Hz to 100kHz

Operating temperature−10℃ to 55℃−10℃ to 55℃−20℃ to 55℃−20℃ to 55℃

Safety standard

CAT Ⅲ 1000V
CAT Ⅳ 600V

CAT Ⅲ 1000V
CAT Ⅳ 600V

CAT Ⅲ 1000V
CAT Ⅳ 600V

CAT Ⅲ 1000V
CAT Ⅳ 600V●●

AC + DC−−

Resistance

600.0Ω to 60.00MΩ

600.0Ω to 60.00MΩ

500.00Ω to 50.000MΩ 500.00Ω to 50.000MΩ

Frequency

10.00Hz to 99.99kHz

10.00Hz to 99.99kHz

2.000Hz to 99.99kHz

2.000Hz to 99.99kHz

Temperature−50.0 to 600.0℃−50.0 to 600.0℃−200.0 to 1372.0℃−200.0 to 1372.0℃

Capacitance

10.00nF to 1000μF

10.00nF to 1000μF

5.000nF to 50mF

5.000nF to 50mF

Duty cycle

−

−

●

●

Decibel calculation

−

−

●

●

Continuity Check

●

●

●

●

Diode Test

●

●

●

●

Low power-Ω

−

−

−

●

Input
Impedance

Overload
Protection

11MΩ<50pF
1000V rms
AC
1000V DC−
5+200※2
10MΩ<50pF−−

50.000mV
500.00mV
5.0000V
50.000V
500.00V
1000.0V

AC Coupling, True RMS value detection, sine wave

10 to 20Hz
4+80※2

Accuracy
20 to 500Hz
1.5+30※2

500 to 1kHz
5+30※22+30※11+30※13+30※1※2※2※2

Input Impedance

Voltage Drop

Overload Protection<0.11mV/μA

440mA Protected by a
440mA/1000V fuse.

0.2+5<4mV/mA
0.6+10
0.6+5

10A Protected by A
10A/1000V fuse.

<0.1V/A

True RMS value detection, sine wave

Upper:1061; Lower:1062; −:Not Specified
10 to 20Hz
20Hz to 1kHz
1k to 5kHz

Range
500.00μA
5000.0μA
50.000mA
500.00mA
5.0000A
10.000A

1.5+201+20

1+20
0.75+20—
1+30

1.5+201.5+20

1+20
1+20

—
2+30

AC Current Measurement [MEAN](〜A) ※1062 only
Range

1000V rms AC
1000V DC

500.00μA
5000.0μA
50.000mA
500.00mA
5.0000A
10.000A

10MΩ<50pF

Overload
Protection

Voltage Drop
<0.11mV/μA

440mA Protected by a
440mA/1000V fuse.

<4mV/mA

10A Protected by A
10A/1000V fuse.

<0.1V/A

MEAN value detection, True RMS value calibration

10 to 20Hz

Accuracy
20 to 500Hz

500Hz to 1kHz

2+20

1.5+202+30

Overload Protection

Voltage Drop
<0.11mV/μA

440mA Protected by a
440mA/1000V fuse.

<4mV/mA
3+20

2+20

4+30

10A Protected by A
10A/1000V fuse.

<0.1V/A

Accuracy At 5 to 100% of range, At 10 to 100% of range for 10A Range
440mA at 500mA range Response time: 1 sec max.
Response time: 1 sec max.

AC Coupling, True RMS value detection, sine wave

Accuracy (Upper:1061; Lower:1062; −:Not Specified)
DC,10 to DC,20Hz
DC,1k to DC,10k to DC,20k to DC,50k to20Hz
to 1kHz
10kHz
20kHz
50kHz
100kHz1+10※1
0.5+10※1

2+10※2
1+10※1

※2
※2

※2
※2

Accuracy 1061,1062

AC Current Measurement [True RMS](〜A)Overload Protection

11MΩ<50pF

1.5+10※1
1.5+10※1

Range
500.00μA
5000.0μA
50.000mA
500.00mA
5.0000A
10.000A

Accuracy At 5 to 100% of range, At 10 to 100% of range for 10A Range
440mA at 500mA range
Crest factor<3. Response time: 1 sec max.

※1: At 5 to 100% of range※2: At 10 to 100% of range
Crest factor <1.5V at 1000V range; Crest factor <3 at other range
CMRR: 80dB or more DC to 60Hz (Rs=1kΩ)Response time: 1 sec max.

DCV+ACV( + 〜)

True RMS/MEAN

Logging memory

6 times per second (except frequency measurement: one time per second,
Resistance measurement : four times per second, capacitor measurement (50mF):
max. 0.03 time per second) Bar graph display 15 times per second
Operating temperature and humidity range:−20 to 55℃, 80%RH or less (no condensation), 70%RH or less at 40 to 55℃.
Storage temperature and humidity range: −40 to 70℃, 70%RH or less (no condensation)
Temperature coefficient: (Accuracy at 23±5℃×0.05)/℃ or less
(Temperature range: −20 to 18℃ and 28 to 55℃)
Power supply:AA-size (R6) 1.5V batteries: 4
Battery life:
Approximately 120 hours(Operating hours of alkaline batteries when in DC voltage-mode.)
Note: The battery life varies depending on the operating conditions.
Withstand voltage:
6.88kV rms AC for five seconds (across input terminals and casing)
Dimension:
Approx. 192(L)×90(W)×49(D)mm
Weight:Approx. 560g (including batteries)
Applicable standards:
IEC 61010-1 CAT IV 600V / CAT III 1000V Pollution degree 2, IEC 61010-031,
IEC 61326-1(EMC)
Accessories:
Batteries : 4, Test leads: 1set (7220A), Fuse (included): 440mA/1000V (8926),
10A/1000V (8927), Instruction manual: 1

Maximum measurement current : 440mA at 500mA range
Response time: 0.3 sec. max.

AC Coupling, True RMS value detection, sine wave

2+50※2
1+40※1

0.4 to 600V rms
0.8 to 100V rms

Accuracy is specified after zero adjustment at 10nF to 1μF (Capacitance).

True RMS●

0.7+30※1
0.4+30※1※1: At 5 to 100% of range※2: At 10 to 100% of range
CMRR: 80dB or more DC to 60Hz (Rs=1kΩ)

Input Voltage

Measurement

●

10MΩ

0.03+20.2 to 600V rms

Detection method

Auto hold

1000V DC
1000V rms AC

0.025+5

1.5+30※1
1+30※11000.0V1052

0.02+2

Range
Overload Protection

Overload Protection

Upper:1061; Lower:1062; −:Not Specified
10 to 20Hz 20Hz to 1kHz 1k to 10kHz 10k to 20kHz 20k to 50kHz 50k to 100kHz
−
−
−
−
−
2+80※2 0.4+40※2 5+40※2 5.5+40※2
15+40※2

1000.0V)

Range
2.000V

Input ImpedanceApprox. 100MΩ

AC Voltage Measurement [True RMS](〜V)
Range

Selection Guide
Model

Measurement cycle:

DC Current Measurement( )(A)

Accuracy 1061,1062
0.05+10

NMRR: 80dB or more 50/60Hz ±0.1% (70dB or more 50/60Hz ±0.1% when 50mV Range)
CMRR: 100dB or more 50/60Hz (Rs=1kΩ) Response time: 0.3 sec. max.

5.0000V
50.000V
500.00V

・The DMM measures the output voltage of an external sensor (e.g. clamp sensor, light sensor, temperature sensor,etc.) in the secondary display, while the primary display
can be set to show the unit of the measured parameter (e.g.
A, mA, Lux, ˚C) according to the conversion ratio chosen.

・Can calculate and display Relative values or Percentage (%) against the reference measurement values.

<0.12mV/μA

0.2+2

Range
50.000mV
500.00mV
2400.0mV
5.0000V
50.000V
500.00V
1000.0V

Range■Sensor mode ※1051, 1052 only

■Relative and Percentage calculation

Display:

AC Voltage Measurement [MEAN](〜V) ※1062 only
<1.3V・Selectable True RMS or MEAN measurement. The
presence of distortion in an AC signal can be confirmed, if the measured True RMS and MEAN values
are different.

・The measured value is held on the display just by removing the test leads from the circuit under test. Users can remain safely concentrated on the measuring
point without the need to press the Hold key.

Overload Protection

Accuracy: At 5 to 100% of range, 10A range is 2 to 10A and 440mA range is 30 to 440mA.
For non-sinusoidal waveforms, add ±(2% + 2% of full scale), for Crest factor<3.
4 counts or less is corrected to 0, Response time: 3 sec max.

Overload Protection

Accuracy is specified after zero adjustment at 600Ω to 6kΩ (Resistance)
Response time: 2 sec max. at 600Ω to 600kΩ, 10 sec max. at 6M to 60MΩContinuity Check(Range
600.0μA
6000μA
60.00mA
440.0mA
6.000A
10.00A

Diode Test(

Resistance Measurement(Ω)■LowPower-Ω measurement ※1062 only

Voltage Drop

AC Current Measurement[True RMS](〜A)Overload Protection

−

Range
600.0Ω
6.000kΩ60.00kΩ
600.0kΩ
6.000MΩ

Accuracy

Response time: 1 sec max.

Accuracy: At 5 to 100% of range and 1000V range is 200 to 1000V. less than 1500V peak For non-sinusoidal
waveforms, add ±(2% + 2% of full scale), for Crest factor<3.
CMRR: 60dB or more DC to 60Hz (Rs=1kΩ)
4 counts or less is corrected to 0, Response time: 2 sec max.

■Low-pass Filter ※except for 1061

Other functions:

DC Voltage Measurement( V)

Range
600.0μA
6000μA
60.00mA
440.0mA
6.000A
10.00A

0.15+2

AC Voltage Measurement(〜V)
Range

DC Voltage, AC Voltage, DC Current, AC Current, Resistance, Frequency,
Temperature, Capacitor, Duty cycle ratio, Decibel (dBv, dBm), Continuity Check,
Diode Test Low power- Ω*, Effective value (root mean square value) detection(True RMS) and mean value detection (MEAN) can be switched during AC voltage or AC current measurement (1062 only).
The low-pass filter can be switched on/off during AC voltage or AC current measurement (1062 only).
Data Hold (D•H), Auto Hold (A•H), Peak Hold* (P•H), Range Hold (R•H), Maximum
value (MAX), Minimum value (MIN), Average value (AVG), Zero Adjustment (Capacitor,
Resistance), Relative values, Save to Memory, Auto Power Off (Approx. 20 minutes), LCD
backlight. *: For model KEW1062 only
5-digit (LCD)……..7-segment
Main-display…....50000 counts
Sub-display…......50000 counts
Bar graph indicator…..51-segment
Polarity Indicator:…..“–” Appears automatically when the polarity is negative.
Overrange Indicator….. “ OL ”
Low-battery Indicator….“ ＋− ” Appears when the batteries become low.

Test conditions: Temperature and humidity: 23±5℃ at 80%RH or less Accuracy: ± (% of reading + digits) Note: Each response time is a value to rated accuracy within selected range.

DC Current Measurement( )(A)

Response time: 1 sec max.

600.0mV
6.000V
60.00V
600.0V
1000V

Measurement function:● Specification

NMRR: 60dB or more 50/60Hz ± 0.1% CMRR: 120dB or more 50/60Hz (Rs=1kΩ)・Calibration and adjustment are possible by simple operation of DMM keys.
・New technology enables the adjustment for the frequency bandwidth characteristic. ※1061, 1062 only

■Auto Hold function

5 times per second (except frequency measurement : one time per second, Resistancemeasurement (6MΩ/60MΩ) : 2.5 times per second, capacitor measurement (1000μF) :max.0.14 time per second)
Bar graph display approx. 25 times per second (at AC, Ω)
Operating temperature and humidity range:-10 to 55℃, 80%RH or less (no condensation) 70%RH or less at 40 to 55℃.
Storage temperature and humidity range: -30 to 70℃, 70%RH or less (no condensation)
Temperature coefficient: (Accuracy at 23±5℃× 0.1)/℃ should be added.
(Temperature range: -10 to 18℃ and 28 to 55℃)
Power supply:AA-size (R6/LR6) 1.5V batteries: 4
Battery life:
Approximately 300 hours (Operating hours of alkaline batteries when in DC voltage-mode.)
Note: The battery life varies depending on the operating conditions.
Withstand voltage:
6.88kV rms AC for five seconds (across input terminals and casing)
Dimension:
Approx. 192(L)×90(W)×49(D)mm
Weight:Approx. 560g (including batteries)
Applicable standards: IEC 61010-1 CAT IV 600V / CAT III 1000V Pollution degree 2, IEC 61010-031, IEC 61326-1
Accessories:
Batteries : 4, Test leads: 1set (7220A), Fuse (included): 440mA/1000V (8926),
10A/1000V (8927), Instruction manual: 1

Test conditions: Temperature and humidity: 23±5℃ at 80%RH or less Accuracy: ± (% of reading + digits) Note: Each response time is a value to rated accuracy within selected range.
Range
600.0mV
6.000V
60.00V
600.0V
1000V■User calibration function

・Response time : 250μs
・The instantaneous peak values can be easily captured
where normally it is impossible by MIN/MAX/AVG function.

Measurement cycle:● Specification
DC Voltage Measurement( V)

Advanced Functions

Top Class Digital Multimeters KEW 1061/1062−
2+10※2

Input ImpedanceOverload
Protection

11MΩ<50pF−
5+20※2

10MΩ<50pF−−

1000V rms
AC
1000V DC

※1: At 5 to 100% of range※2: At 10 to 100% of range
Crest factor <1.5V at 1000V range; Crest factor <3 at other range
CMRR: 80dB or more DC to 60Hz (Rs=1kΩ) Response time: 2 sec max.

DCA+ACA( + 〜)
Range
500.00μA
5000.0μA
50.000mA
500.00mA
5.0000A
10.000A

Maximum Reading 50000
Accuracy (Upper:1061; Lower:1062; −:Not Specified)
DC,10 to 20Hz DC,20Hz to 1kHz DC,1k to 5kHz
2+10
1.5+101.5+10
1+10—
1.5+102+10
2+10

1.5+101.5+10—
3+10

Voltage Drop
<0.11mV/μA<4mV/mA

Overload
Protection
440mA Protected by a
440mA/1000V fuse.
10A Protected by A
10A/1000V fuse.

<0.1V/A

Accuracy At 5 to 100% of range, At 10 to 100% of range for 10A Range
440mA at 500mA range
Crest factor<3. Response time: 2 sec max.

Diode Test( )Resistance Measurement(Ω)
Accuracy

Range

1061

500.00Ω
5.0000kΩ
50.000kΩ
500.00kΩ
5.0000MΩ
50.000MΩ1062※1

0.05+2※1

0.1+2

0.5+2
1+2

Maximum
Measuring Current<1mA<0.25mA<25μA<2.5μA<1.5μA<0.13μA

Open Circuit
Voltage

Overload
Protection<2.5V

1000V rms

Continuity Check(Range
500.0Ω

0.2+3
1+3

Open Circuit Voltage

Overload Protection

＜0.7V

)
Range of Operation 1061,1062
Buzzer sounds at lower than 100±50Ω

Accuracy 1061,1062
1+1.5℃

Capacitor Measurement(

Maximum Reading 5000
Maximum Measuring Current<10μA<1.0μA<0.6μA<0.05μA

Range-200.0 to 1372.0℃

Overload Protection
1000V rms

Use optional Temperature Probe: Thermocouple Type K

LowPower-Ω(LP-Ω) ※1062 only
Accuracy

Accuracy 1061,1062 Measuring Current (Vf=0.6V) Open Circuit Voltage
1+2
Approx. 0.5mA<5V

Temperature Measurement(TEMP)

Accuracy is specified after zero adjustment (resistance).
Response time: 1 sec. max. at 500Ω to 500kΩ, 5 sec. max. at 5MΩ to 50MΩ

Range
5.000kΩ50.00kΩ
500.0kΩ5.000MΩ

Range
2.4000V

1000V rms

Maximum Reading 5000

Accuracy 1061,1062

Overload Protection

Open Circuit Voltage<5V

Overload Protection
1000V rms

Frequency Measurement(Hz)AC Coupling, Maximum Reading 9999
Range (AUTO)
2.000 to 9.999Hz
9.00 to 99.99Hz
90.0 to 999.9Hz
0.900 to 9.999kHz
9.00 to 99.99kHz

Accuracy 1061,1062
0.02+1※1※2※1: At 10 to 100% of input voltage or current range※2: At 40 to 100% of input voltage or current range

1+5※1
1000V rms
2+5
3+5

※1: Accuracy is specified after zero adjustment (capacitor).

Maximum Reading 5000
Measuring Current
Approx. 0.5mA

Range
5.000nF
50.00nF
500.0nF
5.000μF
50.00μF
500.0μF
5.000mF
50.00mF)

Overload Protection
1000V rms

Duty cycle ratio(%)
Range
10 to 90%

Accuracy 1061,1062±1%※1※1: At 10.00Hz to 500.0Hz, square wave At 40
to 100% of input voltage or current range

Peak Hold(P・H) ※1062 only
Maximum Reading 5000
Range
DCV, DCA

Resolution±100 digit

Response Time Maximum>250μsKEW 1051/1052/1061/1062● Accessories
Description

Safe and Durable Design.
Wide Operating Temperature.

■Complies with IEC 61010-1 CAT Ⅳ 600V / CAT Ⅲ 1000V■Safety shutters to prevent incorrect test leads
insertion in current terminals

Test leads

O

CAT Ⅱ

CAT Ⅲ

440mA/1000V×1
10A/1000V×1

Meter

Description

MODEL

Max. 500℃ (Surface type)

8407
8408
8115
8121

Max. 700℃ (Liquid, Semi-solid)
Max. 600℃ (Air, Gas)
AC 130A / DC 180A
AC 100A

8122

AC 500A

8123

AC 1000A

Underground Service

8146
8147

AC 30AAC 70A

Transformer

Banana Ø4mm adjuster plug

8148
7146

AC 100A
Length :190mm

Carrying case

9154

Soft case (for the main unit with test leads and communication cable)

Clamp sensor

2

Meter

KEW 1051 / 1052 / 1061 / 1062

CAT Ⅳ 600V / CAT Ⅲ 1000V 1set
USB adapter+USB cable+DMM Software
Max. 500℃ (Surface type, Point material: Ceramic)

8405
8406

Transformer

High voltage sectionof a photocopierContents

7234
8241

Thermocouple Type K

Meter

DIGITAL MULTIMETER● Optional Accessories
Alligator clip
USB Communication set

Signal Level circuits ofelectronic circuitboard

8927
Fuse
10A/1000V

8926
Fuse
440ｍA/1000V

7220A
Test leads

Meter

Safety shutters are open or closed when the appropriate function is selected because they are linked with the rotation of thefunction switch.

7234
Alligator clip

8241
USB Comminication set

The Best Reliable Multimeters with
Safety Terminal Shutters

7146
Banana Ø4 adjuster plug

9154
Carrying case

Underground Service

Safety shutters open

If the DMM has the function switch
in position 1 (V, Ω, TEMP, etc) thesafet y shut ters close the input
terminals for the current measurements (μA, mA, A) and then the test
leads cannot be plugged-in.

8926
8927

CAT Ⅳ

Underground Service

Operation of the Safety Shutters

1

Contents
CAT Ⅳ 600V / CAT Ⅲ 1000V 1set

Fuse・Terminal shutters are opening or closing being linked with therotation of the function switch.

Safety shutters closed

MODEL
7220A

If the DMM has the function switch
in position 2 (current measurements) then the safety shutters automatically open making it possible
to plug-in the test leads in the input
terminals for the current measurements (μA, mA, A).

■Very wide operating temperature range

To protect us against overvoltage spikes, we must use instruments that meet the requirements for high protection standards.
The IEC (International Electrotechnical Commission) has prepared an International and European safety standard named
IEC 61010-1 with the aim of defining the safety requirements
for measuring instruments.
In particular IEC 61010-1 standard defines also the safety
Measurement areas called Categories, shortly indicated withthe abbreviation “CAT”.
These Categories start from O to CAT Ⅳ and the most dangerous one is the CAT Ⅳ. The figure above shows some area
examples of Measurement Categories.
Measurement
categoryO・From –20℃ to +55℃ for 1061/1062
・From –10℃ to +55℃ for 1051/1052

CAT Ⅱ■High specs UL standard fuses for extra safety

CAT Ⅲ

・Fuses rated at 1000V with 30kA of breaking capacity.

■Over molding case

CAT Ⅳ

・Made by “Elastomer”, a superior shock sustainable material.
Perfectly fits to hand.

Comprehensive support
for data management※except for 1051

■Large internal memory to store test data

・1062: 10,000 data in Logging mode, 100 data manually saved.
・1061: 1,000 data in Logging mode, 100 data manually saved.
・1052: 1,600 data in Logging mode, 100 data manually saved.
・Logging interval can set from 1 sec. to 30 min.

Description

ExamplesMeasuring circuits without
a MEASUREMENTCATEGORY.
For measurements performedon circuits directly connectedto the low voltage installation.
For measurements
performed in the building
installation.
For measurements
performed all the source ofthe low-voltage installation.

Signal level circuitsof electronic PCBs,
etc.
Appliances,
portableequipment, ect.
Distribution board,
circuit breaker, ect.
Overhead wire,
cable systems, ect.

● Clamp sensor Specification
AC/DC current sensor
MODEL

Conductor size
Rated current
Output voltage
Accuracy(50/60Hz)

Frequency range
Dimension
WeightAC current sensor

Leakage & AC current sensor

8115

8121

8122

8123

8146

8147

8148

φ12
AC 130A / DC 180A
AC/DC 10mV/A
AC ±1.2%rdg±0.4mV
DC ±1.2%rdg±0.4mV(This accuracy is defined
after a zero-adjustment)

φ24
AC 100A
AC 500mV/100A

φ40
AC 500A
AC 500mV/500A

φ55
AC 1000A
AC 500mV/1000A

φ24
AC 30AAC 1500mV/30A

φ40
AC 70AAC 3500mV/70A

φ68
AC 100A
AC 5000mV/100A

0 to 15A ±1.0%rdg±0.1mV
15 to 30A ±5.0%rdg

0 to 40A ±1.0%rdg±0.1mV
40 to 70A ±5.0%rdg

0 to 80A ±1.0%rdg±0.1mV
80 to 100A ±5.0%rdg

127(L)×42(W)×22(D)mm

97(L)×59(W)×26(D)mm

128(L)×81(W )×36(D)mm

Approx. 140g

Approx. 150g

Approx. 260g

170(L)×105(W)×48(D)mm 100(L)×60(W)×26(D)mm
Approx. 360g
Approx. 150g

128(L)×81(W)×36(D)mm
Approx. 240g

186(L)×129(W)×53(D)mm
Approx. 510g

±2.0%rdg±0.3mV

Top Class Multimeters

For Electrical and Electronic
Troubleshooting

For Laboratory andIndustrial Use

KEW 1051 / 1052

KEW 1061 / 1062

40Hz to 1kHz

※ Other Kyoritsu clamp sensors can be used with these DMMs, please check our website for more info. ※ Banana φ4 mm adjuster plug (7146) is required to use these sensors with the DMMs, with the exception for the 8115.

● Thermocouple Type K
Model
8405

Specification
Usage

Measurement temprature

Surface type (Point material: Ceramic)

Max. 500℃

8406

Surface type

8407

Liquid, Semi-solid

Max. 700℃

8408

Air, Gas

Max. 600℃

Tolerance (t: measurement temperature)

Response speed±2.5℃/t＝-40℃ to 333℃,±0.0075×｜t｜℃/ｔ＝333℃ to 500℃

Approx. 1.8 Sec.
Approx. 1.0 Sec.

±2.5℃/t＝-40℃ to 333℃,±0.0075×｜t｜℃/ｔ＝333℃ to 700℃
±2.5℃/t＝-40℃ to 333℃,±0.0075×｜t｜℃/ｔ＝333℃ to 600℃

1 Sec. or less

0.4 Sec.

Printer output
L0000 N ,＋12.539 VDC
L0001 N ,＋12.532 VDC
L0002 N ,＋12.532 VDC
L0003 N ,＋12.529 VDC
L0004 N ,＋12.532 VDC
L0005 N ,＋12.538 VDC
L0006 N ,＋12.541 VDC
L0007 N ,＋12.546 VDC
L0008 N ,＋12.552 VDC
L0009 N ,＋12.557 VDC
L0010 N ,＋12.555 VDC
L0011 N ,＋12.554 VDC
L0012 N ,＋12.553 VDC
L0013 N ,＋12.553 VDC

Printed items (from the left)
・L: Logging memory
・4 digit numbers: Data number
・N: Normal measurement(O: at "OL" display)(B: at "Battery warning" display)・5 digit numbers: Measurement
・VDC: Unit (VDC is DC Voltage)

Data analysis with Excel

8405

8406

8407

8408

Please read the "Safety Warnings" in the instruction manual supplied with the instrument thoroughly and completely

correct use. Failure to follow the safety rules can cause fire, trouble, electrical shock, etc. Therefore, make sure
Safety Warnings : forto operate the instrument on a correct power supply and voltage rating marked on each instrument.

■Test data can be transferred to a PC or directly to a Printer*
・Real-time data can be transferred and shown on a PC.
・Real-time transferring permits the saving of a considerable
amount of data on a PC.

Versatile Multimeters1051

For inquiries or orders :

1052

1061

DMM Application software・Stored data of internal memory can be monitored by PC.

■Data management with the software DMM Application*

2-5-20, Nakane, Meguro-ku, Tokyo, 152-0031 Japan
Phone:+81-3-3723-0131
Fax:+81-3-3723-0152

・List of measured data can be converted into Graph.
・Data can be transferred to Excel** and saved as CSV file.
*Optional accessories are required, refer to last page.
**Excel is a registered trademark of Microsoft in the US.

This leaflet was produced in January 2024. The contents of this leaflet are subject to change without notice.

LC_1051_1051_1061_1062_3_0_Jan24_AD_en1062

DMM SERIESHigh Accuracy, High Performance andReliable Measurements■Top class Accuracy■True RMS Measurement・0.02% basic DC accuracy for 1061/1062.
・0.09% basic DC accuracy for 1051/1052.

・Ensures accurate readings, avoiding errors (of up to50%) which can occur when non-sinusoidal waveforms, created by common non linear loads such
PCs, Inverters, switch-mode power supplies, etc, aremeasured.

■Dual Display

・1061/1062 : 50000 counts, 51 segments bar graph withwhite backlight display.
1051/1052: 6000 counts, 31 segments bar graph with・
white backlight display.

■Wide AC Frequency Bandwidth ※1061, 1062 only
・1062 : ACV frequency bandwidth from 10Hz to 100kHz.
・1061 : ACV frequency bandwidth from 10Hz to 20kHz.

■DC+AC True RMS Measurement ※1061, 1062 only・Accurate AC True RMS measurements also in thepresence of superimposed DC component.
・AC and DC values are displayed simultaneously via
dual display.

Versatile Digital Multimeters KEW 1051/1052● General Specification● General Specification

Measurement function:

DC Voltage, AC Voltage, DC Current, AC Current, Resistance, Frequency,
Temperature, Capacitor, Continuity Check, Diode Test
Effective value (root mean square value) detection (True RMS) and mean value detection(MEAN) can be switched during AC voltage measurement (1052 only).
The low-pass filter can be switched on/off during AC voltage or AC current measurement.
Other functions: Data Hold (D•H), Auto Hold (A•H), Range Hold (R•H), Maximum value* (MAX),
Minimum value* (MIN), Average value* (AVG), Zero Adjustment (Capacitor, Resistance),
Relative values, Save to Memory*, Auto Power Off (Approx. 20 minutes), LCD backlight. *: Formodel KEW1052 only
Display:
4-digit (LCD)……..7-segment
Main-display…....6000 counts
Sub-display…......6000 counts
Bar graph indicator…..31-segment
Polarity Indicator:…..“–” Appears automatically when the polarity is negative.
Overrange Indicator….. “ OL ”
Low-battery Indicator….“ ＋− ” Appears when the batteries become low.

Accuracy

Input Impedance
10MΩ
11MΩ

0.09+2

Overload Protection

10MΩ

※A calibrator is necessary for calibration.

1000V DC
1000V rms AC

・AC measurement can be limited to low frequency,
helping for instance voltage measurements in thepresence of variable speed motor drivers or inverters.
・The Low-pass filter can be switched ON/OFF.

AC Coupling: True RMS value detection, sine wave MEAN value detection and True RMS value calibration (KEW1052 only)

Accuracy
40 to 500Hz

50/60Hz

0.5+5

1+5

500Hz to 1kHz

Input Impedance

1.5+5

10MΩ<200pF
11MΩ<50pF
10MΩ<50pF

1000V rms AC
1000V DC・This function uses a test voltage which is lower than
0.7V (that is the typical junction voltage drop of semiconductors) thus it allows testing of resistors on a circuit board without unsoldering them.

Accuracy
0.4+1
0.5+1
1+2(0 to 40MΩ)
2+2(40 to 60MΩ)

60.00MΩMaximum Measuring Current<1.2mA<110μA<13μA<1.3μA

Open Circuit Voltage<3.5V■Selection of the reading mode ※1052, 1062 only

Range
600.0Ω

440mA Protected by a
440mA/1000V fuse.

<3.3mV/mA
0.5+5

10A Protected by A
10A/1000V fuse.

<0.1V/A

50/60Hz

True RMS value detection, sine wave

Accuracy
40Hz to 1kHz

Voltage Drop

Overload Protection<0.12mV/μA
0.75+51.5+5<3.3mV/mA

440mA Protected by a
440mA/1000V fuse.

50.000mV

10A Protected by A
10A/1000V fuse.

500.00mV
5.0000V
50.000V
500.00V<0.1V/A

Accuracy
1+2

Measuring Current(Vf=0.6V)
Approx. 0.5mA

Open Circuit Voltage<3.5V

Overload Protection
1000V rms

1000V rms

Range
−50.0 to 600.0℃<130nA

Capacitor Measurement(

Temperature Measurement(TEMP)
Accuracy
2+2℃

Overload Protection
1000V rms

Range
10.00nF
100.0nF
1.000μF
10.00μF
100.0μF
1000μFUse optional Temperature Probe: Thermocouple Type K

Frequency Measurement(Hz) AC Coupling, Maximum Reading 9999)
Range of Operation
Measuring Current
Buzzer sounds at lower than 50±30Ω Approx. <1.2mA

Open Circuit Voltage<3.5V

Overload Protection
1000V rms

Range
10.00 to 99.99Hz
90.0 to 999.9Hz
0.900 to 9.999kHz
9.00 to 99.99kHz

Accuracy
0.02+1)

Accuracy
2+10

1051

1061

1062

Display■Peak Hold function ※1062 only
■Minimum / Maximum / Average function ※except for 1051
・Can record the MIN/MAX/AVG values during themeasurement process displaying the data and theelapsed time.

2+5

1000V rms

3+5※The average value is shown by dividing the integrated record data by the
number of recording time.

■Duty cycle ratio measurement ※1061, 1062 only
・The duty cycle ratio is displayed in percentage (%).

■Decibel dBV, dBm calculation ※1061, 1062 only・Can perform logarithmic calculations on AC voltage.
※Reference resistance value:
4/8/16/32/50/75/93/110/125/135/150/200/250/300/500/600/800/900/1000/1200Ω

Model

1051

1052

1061

1062

True RMS

True RMS/MEAN

DC Voltage

600.0mV to 1000V

600.0mV to 1000V

50.000mV to 1000.0V 50.000mV to 1000.0V

Maximum count display

6000

6000

50000

50000

AC Voltage

600.0mV to 1000V

600.0mV to 1000V

500.00mV to 1000.0V 50.000mV to 1000.0V

Dual display

●

●

●

●

DC Current

600.0μA to 10.00A

600.0μA to 10.00A 500.00μA to 10.000A 500.00μA to 10.000A

Bar graph31-segment

31-segment

51-segment

51-segment

AC Current

600.0μA to 10.00A

600.0μA to 10.00A 500.00μA to 10.000A 500.00μA to 10.000A

Back light

White LEDWhite LEDWhite LEDWhite LED

Function●●

Peak hold

−

−

−

●

Max/Min/Avg

−

●

●

●

REL

●

●

●

●

Manual memory

−

●

●

●

−

●

※2
※2

※2
※2

−
2+70※23+30※23+30※2●●

Communication

−

●

●

●

Frequency response

40Hz to 1kHz

40Hz to 1kHz

10Hz to 20kHz

10Hz to 100kHz

Operating temperature−10℃ to 55℃−10℃ to 55℃−20℃ to 55℃−20℃ to 55℃

Safety standard

CAT Ⅲ 1000V
CAT Ⅳ 600V

CAT Ⅲ 1000V
CAT Ⅳ 600V

CAT Ⅲ 1000V
CAT Ⅳ 600V

CAT Ⅲ 1000V
CAT Ⅳ 600V●●

AC + DC−−

Resistance

600.0Ω to 60.00MΩ

600.0Ω to 60.00MΩ

500.00Ω to 50.000MΩ 500.00Ω to 50.000MΩ

Frequency

10.00Hz to 99.99kHz

10.00Hz to 99.99kHz

2.000Hz to 99.99kHz

2.000Hz to 99.99kHz

Temperature−50.0 to 600.0℃−50.0 to 600.0℃−200.0 to 1372.0℃−200.0 to 1372.0℃

Capacitance

10.00nF to 1000μF

10.00nF to 1000μF

5.000nF to 50mF

5.000nF to 50mF

Duty cycle

−

−

●

●

Decibel calculation

−

−

●

●

Continuity Check

●

●

●

●

Diode Test

●

●

●

●

Low power-Ω

−

−

−

●

Input
Impedance

Overload
Protection

11MΩ<50pF
1000V rms
AC
1000V DC−
5+200※2
10MΩ<50pF−−

50.000mV
500.00mV
5.0000V
50.000V
500.00V
1000.0V

AC Coupling, True RMS value detection, sine wave

10 to 20Hz
4+80※2

Accuracy
20 to 500Hz
1.5+30※2

500 to 1kHz
5+30※22+30※11+30※13+30※1※2※2※2

Input Impedance

Voltage Drop

Overload Protection<0.11mV/μA

440mA Protected by a
440mA/1000V fuse.

0.2+5<4mV/mA
0.6+10
0.6+5

10A Protected by A
10A/1000V fuse.

<0.1V/A

True RMS value detection, sine wave

Upper:1061; Lower:1062; −:Not Specified
10 to 20Hz
20Hz to 1kHz
1k to 5kHz

Range
500.00μA
5000.0μA
50.000mA
500.00mA
5.0000A
10.000A

1.5+201+20

1+20
0.75+20—
1+30

1.5+201.5+20

1+20
1+20

—
2+30

AC Current Measurement [MEAN](〜A) ※1062 only
Range

1000V rms AC
1000V DC

500.00μA
5000.0μA
50.000mA
500.00mA
5.0000A
10.000A

10MΩ<50pF

Overload
Protection

Voltage Drop
<0.11mV/μA

440mA Protected by a
440mA/1000V fuse.

<4mV/mA

10A Protected by A
10A/1000V fuse.

<0.1V/A

MEAN value detection, True RMS value calibration

10 to 20Hz

Accuracy
20 to 500Hz

500Hz to 1kHz

2+20

1.5+202+30

Overload Protection

Voltage Drop
<0.11mV/μA

440mA Protected by a
440mA/1000V fuse.

<4mV/mA
3+20

2+20

4+30

10A Protected by A
10A/1000V fuse.

<0.1V/A

Accuracy At 5 to 100% of range, At 10 to 100% of range for 10A Range
440mA at 500mA range Response time: 1 sec max.
Response time: 1 sec max.

AC Coupling, True RMS value detection, sine wave

Accuracy (Upper:1061; Lower:1062; −:Not Specified)
DC,10 to DC,20Hz
DC,1k to DC,10k to DC,20k to DC,50k to20Hz
to 1kHz
10kHz
20kHz
50kHz
100kHz1+10※1
0.5+10※1

2+10※2
1+10※1

※2
※2

※2
※2

Accuracy 1061,1062

AC Current Measurement [True RMS](〜A)Overload Protection

11MΩ<50pF

1.5+10※1
1.5+10※1

Range
500.00μA
5000.0μA
50.000mA
500.00mA
5.0000A
10.000A

Accuracy At 5 to 100% of range, At 10 to 100% of range for 10A Range
440mA at 500mA range
Crest factor<3. Response time: 1 sec max.

※1: At 5 to 100% of range※2: At 10 to 100% of range
Crest factor <1.5V at 1000V range; Crest factor <3 at other range
CMRR: 80dB or more DC to 60Hz (Rs=1kΩ)Response time: 1 sec max.

DCV+ACV( + 〜)

True RMS/MEAN

Logging memory

6 times per second (except frequency measurement: one time per second,
Resistance measurement : four times per second, capacitor measurement (50mF):
max. 0.03 time per second) Bar graph display 15 times per second
Operating temperature and humidity range:−20 to 55℃, 80%RH or less (no condensation), 70%RH or less at 40 to 55℃.
Storage temperature and humidity range: −40 to 70℃, 70%RH or less (no condensation)
Temperature coefficient: (Accuracy at 23±5℃×0.05)/℃ or less
(Temperature range: −20 to 18℃ and 28 to 55℃)
Power supply:AA-size (R6) 1.5V batteries: 4
Battery life:
Approximately 120 hours(Operating hours of alkaline batteries when in DC voltage-mode.)
Note: The battery life varies depending on the operating conditions.
Withstand voltage:
6.88kV rms AC for five seconds (across input terminals and casing)
Dimension:
Approx. 192(L)×90(W)×49(D)mm
Weight:Approx. 560g (including batteries)
Applicable standards:
IEC 61010-1 CAT IV 600V / CAT III 1000V Pollution degree 2, IEC 61010-031,
IEC 61326-1(EMC)
Accessories:
Batteries : 4, Test leads: 1set (7220A), Fuse (included): 440mA/1000V (8926),
10A/1000V (8927), Instruction manual: 1

Maximum measurement current : 440mA at 500mA range
Response time: 0.3 sec. max.

AC Coupling, True RMS value detection, sine wave

2+50※2
1+40※1

0.4 to 600V rms
0.8 to 100V rms

Accuracy is specified after zero adjustment at 10nF to 1μF (Capacitance).

True RMS●

0.7+30※1
0.4+30※1※1: At 5 to 100% of range※2: At 10 to 100% of range
CMRR: 80dB or more DC to 60Hz (Rs=1kΩ)

Input Voltage

Measurement

●

10MΩ

0.03+20.2 to 600V rms

Detection method

Auto hold

1000V DC
1000V rms AC

0.025+5

1.5+30※1
1+30※11000.0V1052

0.02+2

Range
Overload Protection

Overload Protection

Upper:1061; Lower:1062; −:Not Specified
10 to 20Hz 20Hz to 1kHz 1k to 10kHz 10k to 20kHz 20k to 50kHz 50k to 100kHz
−
−
−
−
−
2+80※2 0.4+40※2 5+40※2 5.5+40※2
15+40※2

1000.0V)

Range
2.000V

Input ImpedanceApprox. 100MΩ

AC Voltage Measurement [True RMS](〜V)
Range

Selection Guide
Model

Measurement cycle:

DC Current Measurement( )(A)

Accuracy 1061,1062
0.05+10

NMRR: 80dB or more 50/60Hz ±0.1% (70dB or more 50/60Hz ±0.1% when 50mV Range)
CMRR: 100dB or more 50/60Hz (Rs=1kΩ) Response time: 0.3 sec. max.

5.0000V
50.000V
500.00V

・The DMM measures the output voltage of an external sensor (e.g. clamp sensor, light sensor, temperature sensor,etc.) in the secondary display, while the primary display
can be set to show the unit of the measured parameter (e.g.
A, mA, Lux, ˚C) according to the conversion ratio chosen.

・Can calculate and display Relative values or Percentage (%) against the reference measurement values.

<0.12mV/μA

0.2+2

Range
50.000mV
500.00mV
2400.0mV
5.0000V
50.000V
500.00V
1000.0V

Range■Sensor mode ※1051, 1052 only

■Relative and Percentage calculation

Display:

AC Voltage Measurement [MEAN](〜V) ※1062 only
<1.3V・Selectable True RMS or MEAN measurement. The
presence of distortion in an AC signal can be confirmed, if the measured True RMS and MEAN values
are different.

・The measured value is held on the display just by removing the test leads from the circuit under test. Users can remain safely concentrated on the measuring
point without the need to press the Hold key.

Overload Protection

Accuracy: At 5 to 100% of range, 10A range is 2 to 10A and 440mA range is 30 to 440mA.
For non-sinusoidal waveforms, add ±(2% + 2% of full scale), for Crest factor<3.
4 counts or less is corrected to 0, Response time: 3 sec max.

Overload Protection

Accuracy is specified after zero adjustment at 600Ω to 6kΩ (Resistance)
Response time: 2 sec max. at 600Ω to 600kΩ, 10 sec max. at 6M to 60MΩContinuity Check(Range
600.0μA
6000μA
60.00mA
440.0mA
6.000A
10.00A

Diode Test(

Resistance Measurement(Ω)■LowPower-Ω measurement ※1062 only

Voltage Drop

AC Current Measurement[True RMS](〜A)Overload Protection

−

Range
600.0Ω
6.000kΩ60.00kΩ
600.0kΩ
6.000MΩ

Accuracy

Response time: 1 sec max.

Accuracy: At 5 to 100% of range and 1000V range is 200 to 1000V. less than 1500V peak For non-sinusoidal
waveforms, add ±(2% + 2% of full scale), for Crest factor<3.
CMRR: 60dB or more DC to 60Hz (Rs=1kΩ)
4 counts or less is corrected to 0, Response time: 2 sec max.

■Low-pass Filter ※except for 1061

Other functions:

DC Voltage Measurement( V)

Range
600.0μA
6000μA
60.00mA
440.0mA
6.000A
10.00A

0.15+2

AC Voltage Measurement(〜V)
Range

DC Voltage, AC Voltage, DC Current, AC Current, Resistance, Frequency,
Temperature, Capacitor, Duty cycle ratio, Decibel (dBv, dBm), Continuity Check,
Diode Test Low power- Ω*, Effective value (root mean square value) detection(True RMS) and mean value detection (MEAN) can be switched during AC voltage or AC current measurement (1062 only).
The low-pass filter can be switched on/off during AC voltage or AC current measurement (1062 only).
Data Hold (D•H), Auto Hold (A•H), Peak Hold* (P•H), Range Hold (R•H), Maximum
value (MAX), Minimum value (MIN), Average value (AVG), Zero Adjustment (Capacitor,
Resistance), Relative values, Save to Memory, Auto Power Off (Approx. 20 minutes), LCD
backlight. *: For model KEW1062 only
5-digit (LCD)……..7-segment
Main-display…....50000 counts
Sub-display…......50000 counts
Bar graph indicator…..51-segment
Polarity Indicator:…..“–” Appears automatically when the polarity is negative.
Overrange Indicator….. “ OL ”
Low-battery Indicator….“ ＋− ” Appears when the batteries become low.

Test conditions: Temperature and humidity: 23±5℃ at 80%RH or less Accuracy: ± (% of reading + digits) Note: Each response time is a value to rated accuracy within selected range.

DC Current Measurement( )(A)

Response time: 1 sec max.

600.0mV
6.000V
60.00V
600.0V
1000V

Measurement function:● Specification

NMRR: 60dB or more 50/60Hz ± 0.1% CMRR: 120dB or more 50/60Hz (Rs=1kΩ)・Calibration and adjustment are possible by simple operation of DMM keys.
・New technology enables the adjustment for the frequency bandwidth characteristic. ※1061, 1062 only

■Auto Hold function

5 times per second (except frequency measurement : one time per second, Resistancemeasurement (6MΩ/60MΩ) : 2.5 times per second, capacitor measurement (1000μF) :max.0.14 time per second)
Bar graph display approx. 25 times per second (at AC, Ω)
Operating temperature and humidity range:-10 to 55℃, 80%RH or less (no condensation) 70%RH or less at 40 to 55℃.
Storage temperature and humidity range: -30 to 70℃, 70%RH or less (no condensation)
Temperature coefficient: (Accuracy at 23±5℃× 0.1)/℃ should be added.
(Temperature range: -10 to 18℃ and 28 to 55℃)
Power supply:AA-size (R6/LR6) 1.5V batteries: 4
Battery life:
Approximately 300 hours (Operating hours of alkaline batteries when in DC voltage-mode.)
Note: The battery life varies depending on the operating conditions.
Withstand voltage:
6.88kV rms AC for five seconds (across input terminals and casing)
Dimension:
Approx. 192(L)×90(W)×49(D)mm
Weight:Approx. 560g (including batteries)
Applicable standards: IEC 61010-1 CAT IV 600V / CAT III 1000V Pollution degree 2, IEC 61010-031, IEC 61326-1
Accessories:
Batteries : 4, Test leads: 1set (7220A), Fuse (included): 440mA/1000V (8926),
10A/1000V (8927), Instruction manual: 1

Test conditions: Temperature and humidity: 23±5℃ at 80%RH or less Accuracy: ± (% of reading + digits) Note: Each response time is a value to rated accuracy within selected range.
Range
600.0mV
6.000V
60.00V
600.0V
1000V■User calibration function

・Response time : 250μs
・The instantaneous peak values can be easily captured
where normally it is impossible by MIN/MAX/AVG function.

Measurement cycle:● Specification
DC Voltage Measurement( V)

Advanced Functions

Top Class Digital Multimeters KEW 1061/1062−
2+10※2

Input ImpedanceOverload
Protection

11MΩ<50pF−
5+20※2

10MΩ<50pF−−

1000V rms
AC
1000V DC

※1: At 5 to 100% of range※2: At 10 to 100% of range
Crest factor <1.5V at 1000V range; Crest factor <3 at other range
CMRR: 80dB or more DC to 60Hz (Rs=1kΩ) Response time: 2 sec max.

DCA+ACA( + 〜)
Range
500.00μA
5000.0μA
50.000mA
500.00mA
5.0000A
10.000A

Maximum Reading 50000
Accuracy (Upper:1061; Lower:1062; −:Not Specified)
DC,10 to 20Hz DC,20Hz to 1kHz DC,1k to 5kHz
2+10
1.5+101.5+10
1+10—
1.5+102+10
2+10

1.5+101.5+10—
3+10

Voltage Drop
<0.11mV/μA<4mV/mA

Overload
Protection
440mA Protected by a
440mA/1000V fuse.
10A Protected by A
10A/1000V fuse.

<0.1V/A

Accuracy At 5 to 100% of range, At 10 to 100% of range for 10A Range
440mA at 500mA range
Crest factor<3. Response time: 2 sec max.

Diode Test( )Resistance Measurement(Ω)
Accuracy

Range

1061

500.00Ω
5.0000kΩ
50.000kΩ
500.00kΩ
5.0000MΩ
50.000MΩ1062※1

0.05+2※1

0.1+2

0.5+2
1+2

Maximum
Measuring Current<1mA<0.25mA<25μA<2.5μA<1.5μA<0.13μA

Open Circuit
Voltage

Overload
Protection<2.5V

1000V rms

Continuity Check(Range
500.0Ω

0.2+3
1+3

Open Circuit Voltage

Overload Protection

＜0.7V

)
Range of Operation 1061,1062
Buzzer sounds at lower than 100±50Ω

Accuracy 1061,1062
1+1.5℃

Capacitor Measurement(

Maximum Reading 5000
Maximum Measuring Current<10μA<1.0μA<0.6μA<0.05μA

Range-200.0 to 1372.0℃

Overload Protection
1000V rms

Use optional Temperature Probe: Thermocouple Type K

LowPower-Ω(LP-Ω) ※1062 only
Accuracy

Accuracy 1061,1062 Measuring Current (Vf=0.6V) Open Circuit Voltage
1+2
Approx. 0.5mA<5V

Temperature Measurement(TEMP)

Accuracy is specified after zero adjustment (resistance).
Response time: 1 sec. max. at 500Ω to 500kΩ, 5 sec. max. at 5MΩ to 50MΩ

Range
5.000kΩ50.00kΩ
500.0kΩ5.000MΩ

Range
2.4000V

1000V rms

Maximum Reading 5000

Accuracy 1061,1062

Overload Protection

Open Circuit Voltage<5V

Overload Protection
1000V rms

Frequency Measurement(Hz)AC Coupling, Maximum Reading 9999
Range (AUTO)
2.000 to 9.999Hz
9.00 to 99.99Hz
90.0 to 999.9Hz
0.900 to 9.999kHz
9.00 to 99.99kHz

Accuracy 1061,1062
0.02+1※1※2※1: At 10 to 100% of input voltage or current range※2: At 40 to 100% of input voltage or current range

1+5※1
1000V rms
2+5
3+5

※1: Accuracy is specified after zero adjustment (capacitor).

Maximum Reading 5000
Measuring Current
Approx. 0.5mA

Range
5.000nF
50.00nF
500.0nF
5.000μF
50.00μF
500.0μF
5.000mF
50.00mF)

Overload Protection
1000V rms

Duty cycle ratio(%)
Range
10 to 90%

Accuracy 1061,1062±1%※1※1: At 10.00Hz to 500.0Hz, square wave At 40
to 100% of input voltage or current range

Peak Hold(P・H) ※1062 only
Maximum Reading 5000
Range
DCV, DCA

Resolution±100 digit

Response Time Maximum>250μsDMM SERIESHigh Accuracy, High Performance andReliable Measurements■Top class Accuracy■True RMS Measurement・0.02% basic DC accuracy for 1061/1062.
・0.09% basic DC accuracy for 1051/1052.

・Ensures accurate readings, avoiding errors (of up to50%) which can occur when non-sinusoidal waveforms, created by common non linear loads such
PCs, Inverters, switch-mode power supplies, etc, aremeasured.

■Dual Display

・1061/1062 : 50000 counts, 51 segments bar graph withwhite backlight display.
1051/1052: 6000 counts, 31 segments bar graph with・
white backlight display.

■Wide AC Frequency Bandwidth ※1061, 1062 only
・1062 : ACV frequency bandwidth from 10Hz to 100kHz.
・1061 : ACV frequency bandwidth from 10Hz to 20kHz.

■DC+AC True RMS Measurement ※1061, 1062 only・Accurate AC True RMS measurements also in thepresence of superimposed DC component.
・AC and DC values are displayed simultaneously via
dual display.

Versatile Digital Multimeters KEW 1051/1052● General Specification● General Specification

Measurement function:

DC Voltage, AC Voltage, DC Current, AC Current, Resistance, Frequency,
Temperature, Capacitor, Continuity Check, Diode Test
Effective value (root mean square value) detection (True RMS) and mean value detection(MEAN) can be switched during AC voltage measurement (1052 only).
The low-pass filter can be switched on/off during AC voltage or AC current measurement.
Other functions: Data Hold (D•H), Auto Hold (A•H), Range Hold (R•H), Maximum value* (MAX),
Minimum value* (MIN), Average value* (AVG), Zero Adjustment (Capacitor, Resistance),
Relative values, Save to Memory*, Auto Power Off (Approx. 20 minutes), LCD backlight. *: Formodel KEW1052 only
Display:
4-digit (LCD)……..7-segment
Main-display…....6000 counts
Sub-display…......6000 counts
Bar graph indicator…..31-segment
Polarity Indicator:…..“–” Appears automatically when the polarity is negative.
Overrange Indicator….. “ OL ”
Low-battery Indicator….“ ＋− ” Appears when the batteries become low.

Accuracy

Input Impedance
10MΩ
11MΩ

0.09+2

Overload Protection

10MΩ

※A calibrator is necessary for calibration.

1000V DC
1000V rms AC

・AC measurement can be limited to low frequency,
helping for instance voltage measurements in thepresence of variable speed motor drivers or inverters.
・The Low-pass filter can be switched ON/OFF.

AC Coupling: True RMS value detection, sine wave MEAN value detection and True RMS value calibration (KEW1052 only)

Accuracy
40 to 500Hz

50/60Hz

0.5+5

1+5

500Hz to 1kHz

Input Impedance

1.5+5

10MΩ<200pF
11MΩ<50pF
10MΩ<50pF

1000V rms AC
1000V DC・This function uses a test voltage which is lower than
0.7V (that is the typical junction voltage drop of semiconductors) thus it allows testing of resistors on a circuit board without unsoldering them.

Accuracy
0.4+1
0.5+1
1+2(0 to 40MΩ)
2+2(40 to 60MΩ)

60.00MΩMaximum Measuring Current<1.2mA<110μA<13μA<1.3μA

Open Circuit Voltage<3.5V■Selection of the reading mode ※1052, 1062 only

Range
600.0Ω

440mA Protected by a
440mA/1000V fuse.

<3.3mV/mA
0.5+5

10A Protected by A
10A/1000V fuse.

<0.1V/A

50/60Hz

True RMS value detection, sine wave

Accuracy
40Hz to 1kHz

Voltage Drop

Overload Protection<0.12mV/μA
0.75+51.5+5<3.3mV/mA

440mA Protected by a
440mA/1000V fuse.

50.000mV

10A Protected by A
10A/1000V fuse.

500.00mV
5.0000V
50.000V
500.00V<0.1V/A

Accuracy
1+2

Measuring Current(Vf=0.6V)
Approx. 0.5mA

Open Circuit Voltage<3.5V

Overload Protection
1000V rms

1000V rms

Range
−50.0 to 600.0℃<130nA

Capacitor Measurement(

Temperature Measurement(TEMP)
Accuracy
2+2℃

Overload Protection
1000V rms

Range
10.00nF
100.0nF
1.000μF
10.00μF
100.0μF
1000μFUse optional Temperature Probe: Thermocouple Type K

Frequency Measurement(Hz) AC Coupling, Maximum Reading 9999)
Range of Operation
Measuring Current
Buzzer sounds at lower than 50±30Ω Approx. <1.2mA

Open Circuit Voltage<3.5V

Overload Protection
1000V rms

Range
10.00 to 99.99Hz
90.0 to 999.9Hz
0.900 to 9.999kHz
9.00 to 99.99kHz

Accuracy
0.02+1)

Accuracy
2+10

1051

1061

1062

Display■Peak Hold function ※1062 only
■Minimum / Maximum / Average function ※except for 1051
・Can record the MIN/MAX/AVG values during themeasurement process displaying the data and theelapsed time.

2+5

1000V rms

3+5※The average value is shown by dividing the integrated record data by the
number of recording time.

■Duty cycle ratio measurement ※1061, 1062 only
・The duty cycle ratio is displayed in percentage (%).

■Decibel dBV, dBm calculation ※1061, 1062 only・Can perform logarithmic calculations on AC voltage.
※Reference resistance value:
4/8/16/32/50/75/93/110/125/135/150/200/250/300/500/600/800/900/1000/1200Ω

Model

1051

1052

1061

1062

True RMS

True RMS/MEAN

DC Voltage

600.0mV to 1000V

600.0mV to 1000V

50.000mV to 1000.0V 50.000mV to 1000.0V

Maximum count display

6000

6000

50000

50000

AC Voltage

600.0mV to 1000V

600.0mV to 1000V

500.00mV to 1000.0V 50.000mV to 1000.0V

Dual display

●

●

●

●

DC Current

600.0μA to 10.00A

600.0μA to 10.00A 500.00μA to 10.000A 500.00μA to 10.000A

Bar graph31-segment

31-segment

51-segment

51-segment

AC Current

600.0μA to 10.00A

600.0μA to 10.00A 500.00μA to 10.000A 500.00μA to 10.000A

Back light

White LEDWhite LEDWhite LEDWhite LED

Function●●

Peak hold

−

−

−

●

Max/Min/Avg

−

●

●

●

REL

●

●

●

●

Manual memory

−

●

●

●

−

●

※2
※2

※2
※2

−
2+70※23+30※23+30※2●●

Communication

−

●

●

●

Frequency response

40Hz to 1kHz

40Hz to 1kHz

10Hz to 20kHz

10Hz to 100kHz

Operating temperature−10℃ to 55℃−10℃ to 55℃−20℃ to 55℃−20℃ to 55℃

Safety standard

CAT Ⅲ 1000V
CAT Ⅳ 600V

CAT Ⅲ 1000V
CAT Ⅳ 600V

CAT Ⅲ 1000V
CAT Ⅳ 600V

CAT Ⅲ 1000V
CAT Ⅳ 600V●●

AC + DC−−

Resistance

600.0Ω to 60.00MΩ

600.0Ω to 60.00MΩ

500.00Ω to 50.000MΩ 500.00Ω to 50.000MΩ

Frequency

10.00Hz to 99.99kHz

10.00Hz to 99.99kHz

2.000Hz to 99.99kHz

2.000Hz to 99.99kHz

Temperature−50.0 to 600.0℃−50.0 to 600.0℃−200.0 to 1372.0℃−200.0 to 1372.0℃

Capacitance

10.00nF to 1000μF

10.00nF to 1000μF

5.000nF to 50mF

5.000nF to 50mF

Duty cycle

−

−

●

●

Decibel calculation

−

−

●

●

Continuity Check

●

●

●

●

Diode Test

●

●

●

●

Low power-Ω

−

−

−

●

Input
Impedance

Overload
Protection

11MΩ<50pF
1000V rms
AC
1000V DC−
5+200※2
10MΩ<50pF−−

50.000mV
500.00mV
5.0000V
50.000V
500.00V
1000.0V

AC Coupling, True RMS value detection, sine wave

10 to 20Hz
4+80※2

Accuracy
20 to 500Hz
1.5+30※2

500 to 1kHz
5+30※22+30※11+30※13+30※1※2※2※2

Input Impedance

Voltage Drop

Overload Protection<0.11mV/μA

440mA Protected by a
440mA/1000V fuse.

0.2+5<4mV/mA
0.6+10
0.6+5

10A Protected by A
10A/1000V fuse.

<0.1V/A

True RMS value detection, sine wave

Upper:1061; Lower:1062; −:Not Specified
10 to 20Hz
20Hz to 1kHz
1k to 5kHz

Range
500.00μA
5000.0μA
50.000mA
500.00mA
5.0000A
10.000A

1.5+201+20

1+20
0.75+20—
1+30

1.5+201.5+20

1+20
1+20

—
2+30

AC Current Measurement [MEAN](〜A) ※1062 only
Range

1000V rms AC
1000V DC

500.00μA
5000.0μA
50.000mA
500.00mA
5.0000A
10.000A

10MΩ<50pF

Overload
Protection

Voltage Drop
<0.11mV/μA

440mA Protected by a
440mA/1000V fuse.

<4mV/mA

10A Protected by A
10A/1000V fuse.

<0.1V/A

MEAN value detection, True RMS value calibration

10 to 20Hz

Accuracy
20 to 500Hz

500Hz to 1kHz

2+20

1.5+202+30

Overload Protection

Voltage Drop
<0.11mV/μA

440mA Protected by a
440mA/1000V fuse.

<4mV/mA
3+20

2+20

4+30

10A Protected by A
10A/1000V fuse.

<0.1V/A

Accuracy At 5 to 100% of range, At 10 to 100% of range for 10A Range
440mA at 500mA range Response time: 1 sec max.
Response time: 1 sec max.

AC Coupling, True RMS value detection, sine wave

Accuracy (Upper:1061; Lower:1062; −:Not Specified)
DC,10 to DC,20Hz
DC,1k to DC,10k to DC,20k to DC,50k to20Hz
to 1kHz
10kHz
20kHz
50kHz
100kHz1+10※1
0.5+10※1

2+10※2
1+10※1

※2
※2

※2
※2

Accuracy 1061,1062

AC Current Measurement [True RMS](〜A)Overload Protection

11MΩ<50pF

1.5+10※1
1.5+10※1

Range
500.00μA
5000.0μA
50.000mA
500.00mA
5.0000A
10.000A

Accuracy At 5 to 100% of range, At 10 to 100% of range for 10A Range
440mA at 500mA range
Crest factor<3. Response time: 1 sec max.

※1: At 5 to 100% of range※2: At 10 to 100% of range
Crest factor <1.5V at 1000V range; Crest factor <3 at other range
CMRR: 80dB or more DC to 60Hz (Rs=1kΩ)Response time: 1 sec max.

DCV+ACV( + 〜)

True RMS/MEAN

Logging memory

6 times per second (except frequency measurement: one time per second,
Resistance measurement : four times per second, capacitor measurement (50mF):
max. 0.03 time per second) Bar graph display 15 times per second
Operating temperature and humidity range:−20 to 55℃, 80%RH or less (no condensation), 70%RH or less at 40 to 55℃.
Storage temperature and humidity range: −40 to 70℃, 70%RH or less (no condensation)
Temperature coefficient: (Accuracy at 23±5℃×0.05)/℃ or less
(Temperature range: −20 to 18℃ and 28 to 55℃)
Power supply:AA-size (R6) 1.5V batteries: 4
Battery life:
Approximately 120 hours(Operating hours of alkaline batteries when in DC voltage-mode.)
Note: The battery life varies depending on the operating conditions.
Withstand voltage:
6.88kV rms AC for five seconds (across input terminals and casing)
Dimension:
Approx. 192(L)×90(W)×49(D)mm
Weight:Approx. 560g (including batteries)
Applicable standards:
IEC 61010-1 CAT IV 600V / CAT III 1000V Pollution degree 2, IEC 61010-031,
IEC 61326-1(EMC)
Accessories:
Batteries : 4, Test leads: 1set (7220A), Fuse (included): 440mA/1000V (8926),
10A/1000V (8927), Instruction manual: 1

Maximum measurement current : 440mA at 500mA range
Response time: 0.3 sec. max.

AC Coupling, True RMS value detection, sine wave

2+50※2
1+40※1

0.4 to 600V rms
0.8 to 100V rms

Accuracy is specified after zero adjustment at 10nF to 1μF (Capacitance).

True RMS●

0.7+30※1
0.4+30※1※1: At 5 to 100% of range※2: At 10 to 100% of range
CMRR: 80dB or more DC to 60Hz (Rs=1kΩ)

Input Voltage

Measurement

●

10MΩ

0.03+20.2 to 600V rms

Detection method

Auto hold

1000V DC
1000V rms AC

0.025+5

1.5+30※1
1+30※11000.0V1052

0.02+2

Range
Overload Protection

Overload Protection

Upper:1061; Lower:1062; −:Not Specified
10 to 20Hz 20Hz to 1kHz 1k to 10kHz 10k to 20kHz 20k to 50kHz 50k to 100kHz
−
−
−
−
−
2+80※2 0.4+40※2 5+40※2 5.5+40※2
15+40※2

1000.0V)

Range
2.000V

Input ImpedanceApprox. 100MΩ

AC Voltage Measurement [True RMS](〜V)
Range

Selection Guide
Model

Measurement cycle:

DC Current Measurement( )(A)

Accuracy 1061,1062
0.05+10

NMRR: 80dB or more 50/60Hz ±0.1% (70dB or more 50/60Hz ±0.1% when 50mV Range)
CMRR: 100dB or more 50/60Hz (Rs=1kΩ) Response time: 0.3 sec. max.

5.0000V
50.000V
500.00V

・The DMM measures the output voltage of an external sensor (e.g. clamp sensor, light sensor, temperature sensor,etc.) in the secondary display, while the primary display
can be set to show the unit of the measured parameter (e.g.
A, mA, Lux, ˚C) according to the conversion ratio chosen.

・Can calculate and display Relative values or Percentage (%) against the reference measurement values.

<0.12mV/μA

0.2+2

Range
50.000mV
500.00mV
2400.0mV
5.0000V
50.000V
500.00V
1000.0V

Range■Sensor mode ※1051, 1052 only

■Relative and Percentage calculation

Display:

AC Voltage Measurement [MEAN](〜V) ※1062 only
<1.3V・Selectable True RMS or MEAN measurement. The
presence of distortion in an AC signal can be confirmed, if the measured True RMS and MEAN values
are different.

・The measured value is held on the display just by removing the test leads from the circuit under test. Users can remain safely concentrated on the measuring
point without the need to press the Hold key.

Overload Protection

Accuracy: At 5 to 100% of range, 10A range is 2 to 10A and 440mA range is 30 to 440mA.
For non-sinusoidal waveforms, add ±(2% + 2% of full scale), for Crest factor<3.
4 counts or less is corrected to 0, Response time: 3 sec max.

Overload Protection

Accuracy is specified after zero adjustment at 600Ω to 6kΩ (Resistance)
Response time: 2 sec max. at 600Ω to 600kΩ, 10 sec max. at 6M to 60MΩContinuity Check(Range
600.0μA
6000μA
60.00mA
440.0mA
6.000A
10.00A

Diode Test(

Resistance Measurement(Ω)■LowPower-Ω measurement ※1062 only

Voltage Drop

AC Current Measurement[True RMS](〜A)Overload Protection

−

Range
600.0Ω
6.000kΩ60.00kΩ
600.0kΩ
6.000MΩ

Accuracy

Response time: 1 sec max.

Accuracy: At 5 to 100% of range and 1000V range is 200 to 1000V. less than 1500V peak For non-sinusoidal
waveforms, add ±(2% + 2% of full scale), for Crest factor<3.
CMRR: 60dB or more DC to 60Hz (Rs=1kΩ)
4 counts or less is corrected to 0, Response time: 2 sec max.

■Low-pass Filter ※except for 1061

Other functions:

DC Voltage Measurement( V)

Range
600.0μA
6000μA
60.00mA
440.0mA
6.000A
10.00A

0.15+2

AC Voltage Measurement(〜V)
Range

DC Voltage, AC Voltage, DC Current, AC Current, Resistance, Frequency,
Temperature, Capacitor, Duty cycle ratio, Decibel (dBv, dBm), Continuity Check,
Diode Test Low power- Ω*, Effective value (root mean square value) detection(True RMS) and mean value detection (MEAN) can be switched during AC voltage or AC current measurement (1062 only).
The low-pass filter can be switched on/off during AC voltage or AC current measurement (1062 only).
Data Hold (D•H), Auto Hold (A•H), Peak Hold* (P•H), Range Hold (R•H), Maximum
value (MAX), Minimum value (MIN), Average value (AVG), Zero Adjustment (Capacitor,
Resistance), Relative values, Save to Memory, Auto Power Off (Approx. 20 minutes), LCD
backlight. *: For model KEW1062 only
5-digit (LCD)……..7-segment
Main-display…....50000 counts
Sub-display…......50000 counts
Bar graph indicator…..51-segment
Polarity Indicator:…..“–” Appears automatically when the polarity is negative.
Overrange Indicator….. “ OL ”
Low-battery Indicator….“ ＋− ” Appears when the batteries become low.

Test conditions: Temperature and humidity: 23±5℃ at 80%RH or less Accuracy: ± (% of reading + digits) Note: Each response time is a value to rated accuracy within selected range.

DC Current Measurement( )(A)

Response time: 1 sec max.

600.0mV
6.000V
60.00V
600.0V
1000V

Measurement function:● Specification

NMRR: 60dB or more 50/60Hz ± 0.1% CMRR: 120dB or more 50/60Hz (Rs=1kΩ)・Calibration and adjustment are possible by simple operation of DMM keys.
・New technology enables the adjustment for the frequency bandwidth characteristic. ※1061, 1062 only

■Auto Hold function

5 times per second (except frequency measurement : one time per second, Resistancemeasurement (6MΩ/60MΩ) : 2.5 times per second, capacitor measurement (1000μF) :max.0.14 time per second)
Bar graph display approx. 25 times per second (at AC, Ω)
Operating temperature and humidity range:-10 to 55℃, 80%RH or less (no condensation) 70%RH or less at 40 to 55℃.
Storage temperature and humidity range: -30 to 70℃, 70%RH or less (no condensation)
Temperature coefficient: (Accuracy at 23±5℃× 0.1)/℃ should be added.
(Temperature range: -10 to 18℃ and 28 to 55℃)
Power supply:AA-size (R6/LR6) 1.5V batteries: 4
Battery life:
Approximately 300 hours (Operating hours of alkaline batteries when in DC voltage-mode.)
Note: The battery life varies depending on the operating conditions.
Withstand voltage:
6.88kV rms AC for five seconds (across input terminals and casing)
Dimension:
Approx. 192(L)×90(W)×49(D)mm
Weight:Approx. 560g (including batteries)
Applicable standards: IEC 61010-1 CAT IV 600V / CAT III 1000V Pollution degree 2, IEC 61010-031, IEC 61326-1
Accessories:
Batteries : 4, Test leads: 1set (7220A), Fuse (included): 440mA/1000V (8926),
10A/1000V (8927), Instruction manual: 1

Test conditions: Temperature and humidity: 23±5℃ at 80%RH or less Accuracy: ± (% of reading + digits) Note: Each response time is a value to rated accuracy within selected range.
Range
600.0mV
6.000V
60.00V
600.0V
1000V■User calibration function

・Response time : 250μs
・The instantaneous peak values can be easily captured
where normally it is impossible by MIN/MAX/AVG function.

Measurement cycle:● Specification
DC Voltage Measurement( V)

Advanced Functions

Top Class Digital Multimeters KEW 1061/1062−
2+10※2

Input ImpedanceOverload
Protection

11MΩ<50pF−
5+20※2

10MΩ<50pF−−

1000V rms
AC
1000V DC

※1: At 5 to 100% of range※2: At 10 to 100% of range
Crest factor <1.5V at 1000V range; Crest factor <3 at other range
CMRR: 80dB or more DC to 60Hz (Rs=1kΩ) Response time: 2 sec max.

DCA+ACA( + 〜)
Range
500.00μA
5000.0μA
50.000mA
500.00mA
5.0000A
10.000A

Maximum Reading 50000
Accuracy (Upper:1061; Lower:1062; −:Not Specified)
DC,10 to 20Hz DC,20Hz to 1kHz DC,1k to 5kHz
2+10
1.5+101.5+10
1+10—
1.5+102+10
2+10

1.5+101.5+10—
3+10

Voltage Drop
<0.11mV/μA<4mV/mA

Overload
Protection
440mA Protected by a
440mA/1000V fuse.
10A Protected by A
10A/1000V fuse.

<0.1V/A

Accuracy At 5 to 100% of range, At 10 to 100% of range for 10A Range
440mA at 500mA range
Crest factor<3. Response time: 2 sec max.

Diode Test( )Resistance Measurement(Ω)
Accuracy

Range

1061

500.00Ω
5.0000kΩ
50.000kΩ
500.00kΩ
5.0000MΩ
50.000MΩ1062※1

0.05+2※1

0.1+2

0.5+2
1+2

Maximum
Measuring Current<1mA<0.25mA<25μA<2.5μA<1.5μA<0.13μA

Open Circuit
Voltage

Overload
Protection<2.5V

1000V rms

Continuity Check(Range
500.0Ω

0.2+3
1+3

Open Circuit Voltage

Overload Protection

＜0.7V

)
Range of Operation 1061,1062
Buzzer sounds at lower than 100±50Ω

Accuracy 1061,1062
1+1.5℃

Capacitor Measurement(

Maximum Reading 5000
Maximum Measuring Current<10μA<1.0μA<0.6μA<0.05μA

Range-200.0 to 1372.0℃

Overload Protection
1000V rms

Use optional Temperature Probe: Thermocouple Type K

LowPower-Ω(LP-Ω) ※1062 only
Accuracy

Accuracy 1061,1062 Measuring Current (Vf=0.6V) Open Circuit Voltage
1+2
Approx. 0.5mA<5V

Temperature Measurement(TEMP)

Accuracy is specified after zero adjustment (resistance).
Response time: 1 sec. max. at 500Ω to 500kΩ, 5 sec. max. at 5MΩ to 50MΩ

Range
5.000kΩ50.00kΩ
500.0kΩ5.000MΩ

Range
2.4000V

1000V rms

Maximum Reading 5000

Accuracy 1061,1062

Overload Protection

Open Circuit Voltage<5V

Overload Protection
1000V rms

Frequency Measurement(Hz)AC Coupling, Maximum Reading 9999
Range (AUTO)
2.000 to 9.999Hz
9.00 to 99.99Hz
90.0 to 999.9Hz
0.900 to 9.999kHz
9.00 to 99.99kHz

Accuracy 1061,1062
0.02+1※1※2※1: At 10 to 100% of input voltage or current range※2: At 40 to 100% of input voltage or current range

1+5※1
1000V rms
2+5
3+5

※1: Accuracy is specified after zero adjustment (capacitor).

Maximum Reading 5000
Measuring Current
Approx. 0.5mA

Range
5.000nF
50.00nF
500.0nF
5.000μF
50.00μF
500.0μF
5.000mF
50.00mF)

Overload Protection
1000V rms

Duty cycle ratio(%)
Range
10 to 90%

Accuracy 1061,1062±1%※1※1: At 10.00Hz to 500.0Hz, square wave At 40
to 100% of input voltage or current range

Peak Hold(P・H) ※1062 only
Maximum Reading 5000
Range
DCV, DCA

Resolution±100 digit

Response Time Maximum>250μsKEW 1051/1052/1061/1062● Accessories
Description

Safe and Durable Design.
Wide Operating Temperature.

■Complies with IEC 61010-1 CAT Ⅳ 600V / CAT Ⅲ 1000V■Safety shutters to prevent incorrect test leads
insertion in current terminals

Test leads

O

CAT Ⅱ

CAT Ⅲ

440mA/1000V×1
10A/1000V×1

Meter

Description

MODEL

Max. 500℃ (Surface type)

8407
8408
8115
8121

Max. 700℃ (Liquid, Semi-solid)
Max. 600℃ (Air, Gas)
AC 130A / DC 180A
AC 100A

8122

AC 500A

8123

AC 1000A

Underground Service

8146
8147

AC 30AAC 70A

Transformer

Banana Ø4mm adjuster plug

8148
7146

AC 100A
Length :190mm

Carrying case

9154

Soft case (for the main unit with test leads and communication cable)

Clamp sensor

2

Meter

KEW 1051 / 1052 / 1061 / 1062

CAT Ⅳ 600V / CAT Ⅲ 1000V 1set
USB adapter+USB cable+DMM Software
Max. 500℃ (Surface type, Point material: Ceramic)

8405
8406

Transformer

High voltage sectionof a photocopierContents

7234
8241

Thermocouple Type K

Meter

DIGITAL MULTIMETER● Optional Accessories
Alligator clip
USB Communication set

Signal Level circuits ofelectronic circuitboard

8927
Fuse
10A/1000V

8926
Fuse
440ｍA/1000V

7220A
Test leads

Meter

Safety shutters are open or closed when the appropriate function is selected because they are linked with the rotation of thefunction switch.

7234
Alligator clip

8241
USB Comminication set

The Best Reliable Multimeters with
Safety Terminal Shutters

7146
Banana Ø4 adjuster plug

9154
Carrying case

Underground Service

Safety shutters open

If the DMM has the function switch
in position 1 (V, Ω, TEMP, etc) thesafet y shut ters close the input
terminals for the current measurements (μA, mA, A) and then the test
leads cannot be plugged-in.

8926
8927

CAT Ⅳ

Underground Service

Operation of the Safety Shutters

1

Contents
CAT Ⅳ 600V / CAT Ⅲ 1000V 1set

Fuse・Terminal shutters are opening or closing being linked with therotation of the function switch.

Safety shutters closed

MODEL
7220A

If the DMM has the function switch
in position 2 (current measurements) then the safety shutters automatically open making it possible
to plug-in the test leads in the input
terminals for the current measurements (μA, mA, A).

■Very wide operating temperature range

To protect us against overvoltage spikes, we must use instruments that meet the requirements for high protection standards.
The IEC (International Electrotechnical Commission) has prepared an International and European safety standard named
IEC 61010-1 with the aim of defining the safety requirements
for measuring instruments.
In particular IEC 61010-1 standard defines also the safety
Measurement areas called Categories, shortly indicated withthe abbreviation “CAT”.
These Categories start from O to CAT Ⅳ and the most dangerous one is the CAT Ⅳ. The figure above shows some area
examples of Measurement Categories.
Measurement
categoryO・From –20℃ to +55℃ for 1061/1062
・From –10℃ to +55℃ for 1051/1052

CAT Ⅱ■High specs UL standard fuses for extra safety

CAT Ⅲ

・Fuses rated at 1000V with 30kA of breaking capacity.

■Over molding case

CAT Ⅳ

・Made by “Elastomer”, a superior shock sustainable material.
Perfectly fits to hand.

Comprehensive support
for data management※except for 1051

■Large internal memory to store test data

・1062: 10,000 data in Logging mode, 100 data manually saved.
・1061: 1,000 data in Logging mode, 100 data manually saved.
・1052: 1,600 data in Logging mode, 100 data manually saved.
・Logging interval can set from 1 sec. to 30 min.

Description

ExamplesMeasuring circuits without
a MEASUREMENTCATEGORY.
For measurements performedon circuits directly connectedto the low voltage installation.
For measurements
performed in the building
installation.
For measurements
performed all the source ofthe low-voltage installation.

Signal level circuitsof electronic PCBs,
etc.
Appliances,
portableequipment, ect.
Distribution board,
circuit breaker, ect.
Overhead wire,
cable systems, ect.

● Clamp sensor Specification
AC/DC current sensor
MODEL

Conductor size
Rated current
Output voltage
Accuracy(50/60Hz)

Frequency range
Dimension
WeightAC current sensor

Leakage & AC current sensor

8115

8121

8122

8123

8146

8147

8148

φ12
AC 130A / DC 180A
AC/DC 10mV/A
AC ±1.2%rdg±0.4mV
DC ±1.2%rdg±0.4mV(This accuracy is defined
after a zero-adjustment)

φ24
AC 100A
AC 500mV/100A

φ40
AC 500A
AC 500mV/500A

φ55
AC 1000A
AC 500mV/1000A

φ24
AC 30AAC 1500mV/30A

φ40
AC 70AAC 3500mV/70A

φ68
AC 100A
AC 5000mV/100A

0 to 15A ±1.0%rdg±0.1mV
15 to 30A ±5.0%rdg

0 to 40A ±1.0%rdg±0.1mV
40 to 70A ±5.0%rdg

0 to 80A ±1.0%rdg±0.1mV
80 to 100A ±5.0%rdg

127(L)×42(W)×22(D)mm

97(L)×59(W)×26(D)mm

128(L)×81(W )×36(D)mm

Approx. 140g

Approx. 150g

Approx. 260g

170(L)×105(W)×48(D)mm 100(L)×60(W)×26(D)mm
Approx. 360g
Approx. 150g

128(L)×81(W)×36(D)mm
Approx. 240g

186(L)×129(W)×53(D)mm
Approx. 510g

±2.0%rdg±0.3mV

Top Class Multimeters

For Electrical and Electronic
Troubleshooting

For Laboratory andIndustrial Use

KEW 1051 / 1052

KEW 1061 / 1062

40Hz to 1kHz

※ Other Kyoritsu clamp sensors can be used with these DMMs, please check our website for more info. ※ Banana φ4 mm adjuster plug (7146) is required to use these sensors with the DMMs, with the exception for the 8115.

● Thermocouple Type K
Model
8405

Specification
Usage

Measurement temprature

Surface type (Point material: Ceramic)

Max. 500℃

8406

Surface type

8407

Liquid, Semi-solid

Max. 700℃

8408

Air, Gas

Max. 600℃

Tolerance (t: measurement temperature)

Response speed±2.5℃/t＝-40℃ to 333℃,±0.0075×｜t｜℃/ｔ＝333℃ to 500℃

Approx. 1.8 Sec.
Approx. 1.0 Sec.

±2.5℃/t＝-40℃ to 333℃,±0.0075×｜t｜℃/ｔ＝333℃ to 700℃
±2.5℃/t＝-40℃ to 333℃,±0.0075×｜t｜℃/ｔ＝333℃ to 600℃

1 Sec. or less

0.4 Sec.

Printer output
L0000 N ,＋12.539 VDC
L0001 N ,＋12.532 VDC
L0002 N ,＋12.532 VDC
L0003 N ,＋12.529 VDC
L0004 N ,＋12.532 VDC
L0005 N ,＋12.538 VDC
L0006 N ,＋12.541 VDC
L0007 N ,＋12.546 VDC
L0008 N ,＋12.552 VDC
L0009 N ,＋12.557 VDC
L0010 N ,＋12.555 VDC
L0011 N ,＋12.554 VDC
L0012 N ,＋12.553 VDC
L0013 N ,＋12.553 VDC

Printed items (from the left)
・L: Logging memory
・4 digit numbers: Data number
・N: Normal measurement(O: at "OL" display)(B: at "Battery warning" display)・5 digit numbers: Measurement
・VDC: Unit (VDC is DC Voltage)

Data analysis with Excel

8405

8406

8407

8408

Please read the "Safety Warnings" in the instruction manual supplied with the instrument thoroughly and completely

correct use. Failure to follow the safety rules can cause fire, trouble, electrical shock, etc. Therefore, make sure
Safety Warnings : forto operate the instrument on a correct power supply and voltage rating marked on each instrument.

■Test data can be transferred to a PC or directly to a Printer*
・Real-time data can be transferred and shown on a PC.
・Real-time transferring permits the saving of a considerable
amount of data on a PC.

Versatile Multimeters1051

For inquiries or orders :

1052

1061

DMM Application software・Stored data of internal memory can be monitored by PC.

■Data management with the software DMM Application*

2-5-20, Nakane, Meguro-ku, Tokyo, 152-0031 Japan
Phone:+81-3-3723-0131
Fax:+81-3-3723-0152

・List of measured data can be converted into Graph.
・Data can be transferred to Excel** and saved as CSV file.
*Optional accessories are required, refer to last page.
**Excel is a registered trademark of Microsoft in the US.

This leaflet was produced in January 2024. The contents of this leaflet are subject to change without notice.

LC_1051_1051_1061_1062_3_0_Jan24_AD_en1062