Hioki Hioki CM4375-50 Brochure

CLAMP METER Series

5 Commonwealth Ave
Woburn, MA 01801
Phone: [phone]
Toll

Free: 1-800-517-8431

CLAMP

METERS

2

Remarkable Ease of Use

New "Slim Jaw" Design

Innovative slim jaw resolves worksite issues such

as crowded wiring to deliver safe,

accurate and high-performance testing.

3

Φ34

mm

Φ55

mm

CM4375-50 Traditional design

Easily Clamp Within Crowded Cables with

New Slim Jaw Design

Φ46

Φ33

mm

mm

Φ24

mm

CM4375-50

34 mm=1.34 in 55 mm=2.17 in 33 mm=1.30 in 46 mm=1.81 in 24 mm=0.94 in

CM4141-50

CM3289

CM3281
CM3291

CM4001

Safe, Durable, Reliable

-25℃ to 65℃

operating temperature

CM4000 Series can be used in freezing
temperatures or on the hottest summer days.

NEW

*1

Safely measure embedded cables and
electric panels with a maximum rated
voltage to earth of 600V

DC HIGH VOLTAGE PROBE P2000
for CAT III 2000 V

*3

CAT IV 600V

*1

Dustproof and
waterproof performance

International Protection Code: IP54 (
age, or when measuring
conductor
despite exposure to sand or dust as well as water
droplets.

). Measurement functionality is maintained

the current in

*2

while in stor-

an insulated

Safe Inspection of Solar Installations with High Voltage

Solar installations (also known as photovoltaic or PV installations) are becoming
increasingly high-voltage in order to reduce costs and improve the efficiency
of power generation systems. As a result, it is important to select measuring
instruments that support higher voltage measurement to protect the safety of

inspection workers. The P2000 enables high voltage measurement up to CAT Ⅲ

2000 V by simply connecting to a compatible Hioki clamp meter or digital multimeter.

Why is CAT III 2000 V capability necessary?

According to the standards for Photovoltaic (PV) module safety qualification (IEC
61730-1), PV modules are treated as the overvoltage category III, and a measuring
instrument in the measurement category III is required. Using instruments that can
accommodate the appropriate measurement category serves to protect workers
and equipment from serious accidents such as electric shock and burnout.
Currently, adoption of 1500 V solar installation is growing, but instruments that can
accommodate even higher voltages will be necessary in the future as larger and even

more ecient systems enter into use. Hioki developed the P2000 to support CAT III

2000 V measurement in response to the near-term prospect of such applications.

*1 Supported models : CM4371-50, CM4373-50, CM4375-50, CM4141-50, CM3286-50
*2 Supported models : CM4371-50, CM4373-50, CM4375-50
*3 Supported models : CM4371-50, CM4373-50, CM4375-50, CM4141-50

DC High Voltage Probe P2000
Compatible models with DC HIGH V PROBE mode

(DC HIGH V PROBE mode: conversion display in terms of partial pressure ratio)

CM4371-50 CM4373-50 CM4375-50 CM4141-50

6

So much more than just wireless

Wireless connectivity leading to versatility

Using Bluetooth® communication with the Z3210

Install the Wireless Adapter Z3210 to enable Bluetooth® communications.
With the Z3210, you can transfer data directly to an Excel® file and pair the instrument with GENNECT Cross.

Attach to enable Bluetooth® wireless technology

Manage measurement data using GENNECT Cross

Pair clamp meters built in with Bluetooth(R) wireless technology with the free
GENNECT Cross mobile app to upload data to your mobile device for further
data management, processing and reporting.

Transport to the Excel® le

*1

GENNECT

Cross

Z3210

Transport to GENNECT Cross

*2

Mail

Cloud

For more details

• Save data and create reports right on the App

• Share data via cloud services or E-mail

®

Bluetooth

communications

Transfer data to

a tablet wirelessly

Screen1 Screen2 Screen3

Take a picture of

the test location and

map measured

values on it

Verify current waveforms

on your mobile device

Visualize intermittent

GFCI and RCD trips

Review trip times and

maximum current values

Screen4

Harmonic analysis for

troubleshooting

*1 Supported models : CM4371-50, CM4373-50, CM4375-50, CM4141-50, CM3286-50, CM4001, CM4002, CM4003
*2 Supported models : When the Z3210 is installed on a compatible model described above*1

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.

*Android, Go ogle Play and the Goo gle Play log o are trademarks of Go ogle Inc.
*iOS is a reg istered t rademar k of Cisco Techn ology, Inc. a nd/or its af filiates in the Uni ted States and cer tain other countr ies.
*iPhone, iPa d, iPad mini, i Pad Pro and iPo d touch are t rademar ks of Apple I nc.
*Apple and th e Apple logo are tra demarks of Apple In c. App Store is a ser vice mar k of Apple In c.
*Micro soft, Wi ndows, Windows Vi sta, and E xcel are either reg istered t rademar ks or tradem arks of Microsof t Corporation in t he United S tates and /or other co untries.
*Company n ames and Pr oduct nam es appearing in th is catalo g are trademarks or r egister ed tradem arks of vari ous compa nies.
*The Blu etooth® wo rd mark and logos ar e registe red trade marks owne d by Bluetooth SIG, Inc . and any use of s uch marks by HIOKI E.E . CORPORATION is under li cense.
*For the lat est inform ation ab out count ries and re gions whe re wireless opera tion is cur rently suppor ted, plea se visit th e Hioki website.

GENNECT

Cross

For more details

7

8

Lineup

Measurement type

AC / DC Current

Model CM4371-50 CM4373-50 CM4375-50 3287

NEW NEW NEW

Appearance

Core jaw diameter

AC measurement system

Frequency characteristics

AC current
(Resolution)
Guaranteed accuracy range

DC current
(Resolution)

Measurement parameters

AC Voltage

DC Voltage

Power

Resistance

Temperature

Electrostatic capacity

Frequency

Rush current

Continuity check

Diode check

Non-Contact Voltage

Low-pass filter

Auto power off

Auto range

Data hold

Automatic AC/DC detection

MAX / MIN / AVG

Output

Bluetooth® communication

Backlight

Display refresh rate

Safety standard
category

Safety standard
category (with P2000)

CE

Dustproof and waterproof

Drop proof

Power supply

Dimensions
( W × H × D )

Weight

φ33 mm (1.30 in) φ55 mm (2.17 in) φ34 mm (1.34 in) φ35 mm (1.38 in) φ35 mm (1.38 in)

True RMS True RMS True RMS True RMS

10 Hz to 1 kHz 10 Hz to 1 kHz 10 Hz to 1 kHz 10 Hz to 1 kHz 10 Hz to 500 Hz

600 A
(0.01)

1 A to 600 A

600 A
(0.01)

2000 A

(0.1)

1 A to 2000 A

2000 A

(0.1)

1000 A

(0.1)

1 A to 999.9 A

999.9 A
(0.1)

100 A
(0.01)

Full display range

100 A
(0.01)

1000 V 1000 V 1000 V 600 V 600 V

*1

2000 V

1200 kVA (DC)

*1

4000 kVA (DC)

2000 V

*1

*1

2000 kVA (DC)

2000 V

*1

*1

600 V 600 V

N / A N / A

6 MΩ 6 MΩ 6 MΩ 42 MΩ 42 MΩ

-40℃ to 400℃ -40℃ to 400℃ -40℃ to 400℃ N / A N / A

4 4 4

N / A N / A

999.9 Hz 999.9 Hz 999.9 Hz N / A N / A

4 4 4

4 4 4 4 4

4 4 4

4 4

4 4 4

4 4 4 4 4

4 4 4 4 4

N / A N / A N / A

N / A N / A

N / A N / A

N / A N / A

AUTO / MANUAL AUTO / MANUAL AUTO / MANUAL MANUAL MANUAL

4 4 4

4 4 4

N / A N / A

N / A N / A

N / A N / A N / A N / A N / A

(with Z3210)

4

4 4 4

(with Z3210)

4

(with Z3210) N / A N / A

4

N / A N / A

5 times / s 5 times / s 5 times / s 2.5 times / s 2.5 times / s

CAT IV 600 V

CAT III 1000 V

CAT IV 1000 V
CAT III 2000 V

4 4 4 4 4

*2

IP54

CAT IV 600 V

CAT III 1000 V

CAT IV 1000 V
CAT III 2000 V

*2

IP54

CAT IV 600 V

CAT III 1000 V

CAT IV 1000 V
CAT III 2000 V

*2

IP54

V: CAT III 300 V

A: CAT III 600 V

N / A N / A

N / A N / A

N / A N / A N / A N / A N / A

LR03 ×2

Alkaline

65 × 215 × 35 mm

2.56 × 8.46 × 1.38 in

LR03 ×2

Alkaline

65 × 250 × 35 mm

2.56 × 9.84 × 1.38 in

LR03 ×2

Alkaline

65 × 242 × 35 mm

2.56 × 9.53 × 1.38 in

CR2032 ×1

Coin type

57 × 180 × 16 mm

2.24 × 7.09 × 0.63 in

340 g / 12.0 oz 530 g / 18.7 oz 350 g / 12.3 oz 170 g / 6.0 oz 150 g / 5.3 oz

3288

3288-20

MEAN Value

True RMS (-20)

1000 A

*3

(0.1)

Full display range

*3

1000 A

(0.1)

V: CAT III 300 V

A: CAT III 600 V

CR2032 ×1

Coin type

57 × 180 × 16 mm

2.24 × 7.09 × 0.63 in

Size comparison

25

20

15

10

5

0 cm

CM4371-50 CM4373-50 CM3286-50CM4375-50 3287

3288

3288-20

3280-10F

CM3289CM4141-50 CM3281

CM3291

CM4001 CM4002

CM4003

*1: Only when DC HIG H VOLTAGE PROBE P2000 is u sed *2: Whil e in stora ge, or when m easurin g the current in an insul ated con ductor. Do no t use when we t. 3: displa yed 0 with be low 0.06

9

Measurement type

AC Current Leakage Current

Model CM4141-50 3280-10F CM3289 CM3281 CM3291 CM4001

NEW NEW

Appearance

Core jaw diameter

AC measurement system

Frequency characteristics

AC current
(Resolution)
Guaranteed accuracy range

DC current
(Resolution)

Measurement parameters

AC Voltage

DC Voltage

Power

Resistance

Temperature

Electrostatic capacity

Frequency

Rush current

Continuity check

Diode check

Non-Contact Voltage

Low-pass filter

Auto power off

Auto range

Data hold

Automatic AC/DC detection

MAX / MIN / AVG

Output

Bluetooth® communication

Backlight

Display refresh rate

Safety standard
category

Safety standard
category (with P2000)

CE

Dustproof and waterproof

Drop proof

Power supply

Dimensions
( W × H × D )

Weight

φ55 mm (2.17 in) φ33 mm (1.30 in) φ33 mm (1.30 in) φ46 mm (1.81 in) φ46 mm (1.81 in) φ24 mm (0.94 in) φ40 mm (1.57 in) φ46 mm (1.81 in)

True RMS MEAN Value True RMS MEAN Value True RMS True RMS True RMS True RMS

45 Hz to 1 kHz 50 / 60 Hz 40 Hz to 1 kHz 50 / 60 Hz 40 Hz to 1 kHz 40 Hz to 1 kHz 15 Hz to 2 kHz

2000 A

(0.01)

1 A

to

2000 A

N / A N / A N / A N / A N / A N / A N / A N / A

1000 V 600 V 600 V 600 V 600 V N / A N / A 600 V

*1

2000 V

N / A N / A N / A N / A N / A N / A N / A 360 kW (AC)

6 MΩ 42 MΩ 42 MΩ 42 MΩ 42 MΩ N / A N / A N / A

-40℃ to 400℃

4

999.9 Hz N / A N / A N / A N / A 999.9 Hz 2000 Hz 999.9 Hz

4

4 4 4 4 4

4

N / A N / A N / A N / A N / A N / A N / A N / A

4

4 4 4 4 4 4 4 4

4 4 4 4 4 4 4 4

AUTO / MANUAL

(Voltage only)

4

4

N / A N / A N / A N / A N / A N / A

(with Z3210) N / A N / A N / A N / A

4

4

5 times / s 2.5 times / s 2.5 times / s 2.5 times / s 2.5 times / s 5 times / s 5 times / s 2 times / s

CAT IV 600 V
CAT III 1000 V

CAT IV 1000 V
CAT III 2000 V

4 4 4 4 4 4 4 4

*2

IP50

N / A

LR03 ×2

Alkaline

65 × 247 × 35 mm

2.56 × 9.72 × 1.38 in

300 g / 10.6 oz 100 g / 3.5 oz 100 g / 3.5 oz 103 g / 3.6 oz 103 g / 3.6 oz 115 g / 4.1 oz 400 g / 14.1 oz 450 g / 15.9 oz

1000 A

(0.01)

4 A

to

1000 A

600 V 600 V 600 V 600 V N / A N / A N / A

N / A N / A N / A N / A N / A N / A N / A

N / A N / A N / A N / A N / A N / A N / A

N / A N / A N / A N / A

N / A N / A N / A N / A N / A N / A N / A

N / A N / A N / A N / A

MANUAL MANUAL MANUAL MANUAL

N / A N / A N / A N / A N / A N / A N / A

N / A N / A N / A N / A

N / A N / A N / A N / A

V: CAT III 300 V
A: CAT IV 300 V

N / A N / A N / A N / A N / A N / A N / A

IP40 N / A N / A N / A N / A IP40 IP50

4 4 4 4

CR2032 ×1

Coin type

57 × 175 × 16 mm

2.24 × 6.89 × 0.63 in

1000 A

(0.01)

4 A

to

1000 A

V: CAT III 300 V
A: CAT IV 300 V

CR2032 ×1

Coin type

57 × 181 × 16 mm

2.24 × 7.13 × 0.63 in

2000 A

(0.01)

4 A

to

1999 A

V: CAT III 300 V
A: CAT IV 300 V

CR2032 ×1

Coin type

57 × 198 × 16 mm

2.24 × 7.80 × 0.63 in

2000 A

(0.01)

4 A

to

1999 A

V: CAT III 300 V

A: CAT IV 300 V

CR2032 ×1

Coin type

57 × 198 × 16 mm

2.24 × 7.80 × 0.63 in

600 A

(0.01mA))

0.6 mA

to

4 4

N / A N / A N / A

4 4

AUTO / MANUAL AUTO / MANUAL AUTO / MANUAL

4 4 4

(with Z3210)4 (with Z3210)4 (with Z3210)

4

4 4 4

CAT III 300 V

N / A N / A N / A

LR03 ×1

Alkaline

37 × 160 × 27 mm

1.46 × 6.30 × 1.06 in

CM4002
CM4003

(0.001mA)

600 A

0.06 mA

(CM4003 only)

4

CAT IV 300 V (CM4002)

CAT III 600 V (CM4002)
CAT III 300 V (CM4003)

64 × 233 × 36 mm

2.52 × 9.17 × 1.41 in

200 A

to

LR6 ×2

Alkaline

200 A

2.56 × 9.49 × 1.38 in

AC Power

CM3286-50

45 Hz

to

1 kHz

600 A

(0.001)

0.06 A

to

600 A

N / A

N / A

N / A

CAT IV 600 V

CAT III 1000 V

*2

LR03 ×2

Alkaline

65 × 241 × 35 mm

Test leads with an integrated cap for greater convenience and safety

UNLOCK

SLIDE

CAT Ⅳ  600 V
CAT Ⅲ 1000 V

CAT Ⅱ 1000 VLOCK

The L9300 test lead with an
integrated cap is included as a
standard. The finger guard can
be easily slid to switch between
measurement categories without
worrying about losing the cap.

10

AC / DC Current

AC/DC CLAMP METER CM4371-50, CM4373-50, CM4375-50

Product warranty for 3 years

Accuracy guaranteed for 1 year

Accessories

NEW

L9300

• LR03 Alkaline battery ×2

• Instruction manual

WIRELESS ADAPTER
Z3210 (Option)

Attach to enable Bluetooth
wireless technology

C0203

φ35 mm =1.30 in φ55 mm =2.17 in φ34 mm =1.34 in

Φ 33

mm

NEW

DC HIGH VOLTAGE PROBE
P2000 (Option)

®

Available to mesure 2000 V DC

NEW NEW NEW

CM4371-50

600 A AC/DC

True RMS

CAT IV 600 V

CAT III 1000 V

With P2000

CAT IV 1000 V DC
CAT III 2000 V DC

With Z3210

Φ 55

mm

CM4373-50

2000 A AC/DC

True RMS

CAT IV 600 V

CAT III 1000 V

With P2000

CAT IV 1000 V DC
CAT III 2000 V DC

With Z3210

Φ 34

mm

CM4375-50

1000 A AC/DC

True RMS

CAT IV 600 V

CAT III 1000 V

With P2000

CAT IV 1000 V DC
CAT III 2000 V DC

With Z3210

CLAMP ON AC/DC HiTESTER 3287, 3288, 3288-20

φ35 mm =1.38 in

Accessories

L9208

• Coin type lithium battery CR2032×1

• Instruction manual

9398

Φ 35

mm

3287

100 A AC/DC

True RMS

V: CAT III 300 V

A: CAT III 600 V

Φ 35

mm

Product warranty for 3 years

Accuracy guaranteed for 1 year

φ35 mm =1.38 in φ35 mm =1.38 in

Φ 35

mm

3288

1000 A AC/DC

True RMS

V: CAT III 300 V
A: CAT III 600 V

3288-20

1000 A AC/DC

True RMS

V: CAT III 300 V
A: CAT III 600 V

11

For more details

*1

Model CM43

AC Current

DC Current

Measurement parameters

AC + DC Current

AC Voltage
DC Voltage
AC + DC Voltage

DC Power

Resistance
Temperature
Electrostatic capacity
Frequency

Display refresh rate 5 times/s
Operating temperature -25℃ to 65℃, 90% RH or less (non-condensating)
Storage temperature -30℃ to 70℃, 90% RH or less (non-condensating)
Dustproof and waterproof

Power supply

Other

Continuous operating time

Dimensions
( W × H × D )

Weight

*1: E xclude s CM4375 -50 *2: Onl y when DC HIG H VOLTAGE PROBE P2000 is us ed *3: Excludes electrostatic capacity, frequency, and temperature
*4: While in stora ge, or when m easuri ng the cur rent an ins ulated co nduct or. Do not use whe n wet. *5: With b ackli ght and Blu etooth

71-50

CM43

73 -50

CM43

75-50

4

N / A

N / A N / A

4

N / A N / A

4

N / A

N / A N / A

4

N / A N / A

4

N / A

N / A N / A

4

N / A N / A

4 4 4
4 4 4
4 4 4
4

N / A

N / A N / A

4

N / A N / A

4 4 4
4 4 4
4 4 4
4 4 4

*3

*4

IP54

Alkaline battery LR03 ×2

*5

40 hours

CM4371-50: 65 × 215 × 35 mm (2.56 × 8.46 × 1.38 in)
CM4373-50: 65 × 250 × 35 mm (2.56 × 9.84 × 1.38 in)
CM4375-50: 65 × 242 × 35 mm (2.56 × 9.53 × 1.38 in)

CM4371-50: 340 g (12 oz)
CM4373-50: 530 g (18.7 oz)
CM4375-50: 350 g (12.3 oz)

20.00 A /600.0 A (guaranteed acc uracy ra nge: 1.00 A to 60 0.0 A) ±1.3% rdg ±0. 08 A

600.0 A /200 0 A (guara nteed ac curacy r ange: 1.0 A to 200 0 A) ±1.3% rdg ± 0.3 A

N / A

1000 A (guar anteed a ccuracy range: 1.0 A to 99 9.9 A) ±1.3% rdg ±0.3 A

4

20.00 A /600.0 A (guaranteed acc uracy ra nge: ±1.00A to ±600.0 A) ±1.3% rdg ±0.08 A

600.0 A /200 0 A (guara nteed ac curacy r ange: ±1.0A to ±20 00 A) ±1.3% rdg ±0.3 A

N / A

1000 A (guar anteed a ccuracy range: ±1.0 A to ±999.9 A) ±1.3% rdg ±0.3 A

4

20.00 A /600.0 A (guaranteed acc uracy ra nge: 1.00 A to 60 0.0 A) ±1.3% rdg ±0.13 A

600.0 A /200 0 A (guara nteed ac curacy r ange: 1.0 A to 200 0 A) ±1.3% rdg ±1.3 A

N / A

1000 A (guar anteed a ccuracy range: 1.0 A to 99 9.9 A) ±1.3% rdg ±1.3 A

4

6.000 V/60.00 V/600.0 V/1000 V ±0.9% r dg ±0.0 03 V

600.0 mV/6.000 V/60.00 V/600.0 V/1000 V/2000 V

6.000 V/60.00 V/600.0 V/1000 V ±1.0% rdg ±0.013 V

0.0 VA to ±1200 kVA

0.000 kVA to ± 4000 kVA

N / A

0.000 kVA to ± 2000 k VA

4

600.0 Ω /6.0 00 kΩ /60.0 0 kΩ/ 600.0 k Ω/6.000 MΩ ±0.7% rdg ±0.5 Ω

-40.0℃ to 400.0℃ ±0.5% rd g ±3.0℃

1.000 μF/10.0 0 μF/100.0 μ F/1000 μ F ±1.9% rdg ±0.0 05 μF

9.999 Hz/99.99 Hz/999.9 Hz ±0.1% rdg ±0.00 3 Hz

*2

*2

*2

Order code

Order code

Order code

*2

CM4371-50

CM4373-50

CM4375-50

Model CM437x-92 includes P2000, Z3210 as a set

Order code

Order code

Order code

Model CM437x-90 includes Z3210 as a set
Model CM437x-91 includes P2000 as a set

®

CM4371-90

CM4373-90

CM4375-90

communications turned OFF

Basic accuracy

±0.5% rd g ±0.5 mV

±2.0% r dg ±20 d gt
±2.0% r dg ±20 d gt
±2.0% r dg ±0.0 20 kVA

Order code

Order code

Order code

Order code

CM4373-91

CM4375-91

CM4373-92

CM4375-92

Model

Measurement parameters

AC Current

DC Current

AC Voltage
DC Voltage
Resistance

Display refresh rate 2.5 times/s
Operating temperature 0℃ to 40℃, 80% RH or less (non-condensating)
Storage temperature -10℃ to 50℃, 80% RH or less (non-condensating)

Other

Dustproof and waterproof

Power supply
Continuous operating time

Dimensions( W × H × D )
Weight 3287: 170 g (6.0 oz), 3288, 3288-20: 150 g (5.3 oz)

3287 3288

4

N / A

4

N / A

N / A N / A

4 4

N / A N / A

4 4
4 4 4
4 4 4
4 4 4

N / A

Coin type lithium battery CR2032 ×1
25 hours

57 × 180 × 16 mm (

3288-20

2.24 × 7.09 × 0.63 in)

10.00 A/100.0 A (Displ ay range: 0A to 10.0 0 A/100.0 A) ±1.5% rdg ± 5 dgt

Basic accuracy

100.0 A/1000 A (Disp lay rang e: 0A to 100.0 A/100 0 A) ±1.5% rdg ±5 dgt

10.0 0 A/ 100. 0 A ±1.5% rdg ±5 dgt

100.0 A/1000 A ±1.5% rdg ±5 dgt

4.200 V/42.00 V/420.0 V/60 0 V ±2.3% r dg ±8 dg t

420.0 mV/4.200 V/42.00 V/420.0 V/60 0 V ±1.3% rdg ±4 dg t

420.0 Ω /4.200 k Ω/42 .00 kΩ /420.0 k Ω/4.2 00 MΩ /42.00 M Ω ±2.0% rdg ± 4 dgt

Order code

Order code

Order code

3287

3288

3288-20

12

AC Current

AC CLAMP METER CM4141-50

Accessories

L9300

• LR03 Alkaline battery ×2

• Instruction manual

C0203

WIRELESS ADAPTER
Z3210 (Option)

Attach to enable Bluetooth
wireless technology

DC HIGH VOLTAGE PROBE
P2000 (Option)

Available to mesure 2000 V DC

®

φ55 mm =2.17 in

Φ 55

mm

NEW

CM4141-50

2000 A AC

True RMS

CAT IV 600 V

CAT III 1000 V

With P2000

CAT IV 1000 V DC
CAT III 2000 V DC

With Z3210

AC CLAMP METER 3280-10F, CM3289, CM3281, CM3291

Accessories

Φ 33

mm

φ33 mm =1.30 in

3280-10F
3280-70F

1000 A AC

MEAN Value

V: CAT III 300 V

A: CAT IV 300 V

Φ 33

mm

φ33 mm =1.30 in φ46 mm=1.81 in

CM3289

1000 A AC

True RMS

V: CAT III 300 V

A: CAT IV 300 V

Product warranty for 3 years

Accuracy guaranteed for 1 year

Product warranty for 3 years

Accuracy guaranteed for 1 year

CM3281

Φ 46

mm

CM3291

2000 A AC

CM3281:
CM3291: True RMS

MEAN Value

V: CAT III 300 V
A: CAT IV 300 V

L9208

• CARRYING CASE (models vary as shown on right)

• Coin type lithium battery CR2032×1

• Instruction manual

9398

(-10F)

C0205

(-70F)

9398

Leakage Current

AC LEAKAGE CLAMP METER CM4001, CM4002, CM4003

WIRELESS ADAPTER
Z3210 (Option)

Attach to enable Bluetooth
wireless technology

φ24 mm=0.94 in

Φ 24

mm

CM4001

0.6 mA to 600 A AC

Φ 40

mm

True RMS

CAT III 300 V

Accessories

®

CARRYING CASE

• STRAP

• LR03 Alkaline battery ×1

• Instruction manual With
Z321

φ40 mm=1.57 in φ40 mm=1.57 in

CM4002

0.06 mA to 200 A AC

True RMS True RMS

CAT IV 300 V
CAT III 600 V

Accessories

C0203

• LR6 Alkaline battery ×2

• Instruction manual

With Z3210 With Z3210

CARRYING CASE

Product warranty for 3 years

Accuracy guaranteed for 1 year

Φ 40

mm

CM4003

0.06 mA to 200 A AC

CAT III 300 V

Accessories

C0203 L9097

• LR6 Alkaline battery ×2

• Instruction manual

• USB cable

Functions

• External output

• External power supply

For more details

13

Model

Measurement parameters

AC Current
AC Voltage
DC Voltage
AC + DC Voltage
Resistance
Temperature
Electrostatic capacity
Frequency

Display refresh rate 5 times/s
Operating temperature -25℃ to 65℃, 90% RH or less (non-condensating)
Storage temperature -30℃ to 70℃, 90% RH or less (non-condensating)

Other

Dustproof and waterproof

Power supply
Continuous operating time

Dimensions( W × H × D )
Weight 300 g (10.6 oz)

*1: O nly when D C HIGH VOLTAGE PROBE P200 0 is used *2: E xcludes e lectro static c apaci ty, freque ncy, and temp erature

While in s torage, or w hen meas uring re sistan ce or curr ent in an ins ulated c onduct or in a comp letely d ry cond ition. D o not use wh en wet.

*3:

Model

Measurement items

AC Current

AC Voltage
DC Voltage
Resistance

Display refresh rate 2.5 times/s
Operating temperature -25℃ to 65℃, 80% RH or less (non-condensating)
Storage temperature -25℃ to 65℃, 80% RH or less (non-condensating)
Dustproof and waterproof

Power supply

Other

Continuous operating time

Dimensions
( W × H × D )

Weight

*1

Excludes 3280F *2 Excludes CM3289, CM3281, CM3291

IP50

Alkaline battery LR03 ×2
48 hours

65 × 247 × 35 mm (2.56 × 9.72 × 1.38 in)

3280-10F

IP40 (EN60529)

Coin type lithium battery CR2032 ×1
3280-10F, CM3281: 120 hours
CM3289: 70 hours
CM3291: 70 hours

3280-10F: 57 × 175 × 16 mm (2.24 × 6.89 × 0.63 in)
CM3289: 57 × 181 × 16mm (2.24 × 7.13 × 0.63 in)
CM3281, CM3291: 57 × 198 × 16 mm (2.24 × 7.80 × 0.63 in)

3280-10F: 100 g (3.5 oz)
CM3289: 100 g (3.5 oz)
CM3281, CM3291: 103 g (3.6 oz)

CM4141-50 Basic accuracy

4

4

4

4

4

4

4

4

*2

*3

*4

60.00 A/600.0 A/2000 A (guarante ed accu racy ran ge: 1.00A to 200 0 A) ±1.5% rdg ±0.08 A

6.000 V/60.00 V/600.0 V/1000 V ±0.9% r dg ±0.0 03 V

600.0 mV/6.000 V/60.00 V/600.0 V/1000 V/2000 V

6.000 V/60.00 V/600.0 V/1000 V ±1.0% rdg ±0.013 V

600.0 Ω /6.0 00 kΩ /60.0 0 kΩ/ 600.0 k Ω/6.000 MΩ ±0.7% rdg ±0.5 Ω

-40.0℃ to 400.0℃ ±0.5% rd g ±3.0℃

1.000 μF/10.0 0 μF/100.0 μ F/1000 μ F ±1.9% rdg ±0.0 05 μF

9.999 Hz/99.99 Hz/999.9 Hz ±0.1% rdg ±0.00 3 Hz

Model CM4141-90 includes Z3210 as a set

*1

CM3289

4 4

CM3281 • CM3291

N / A N / A

4 4 4
4 4 4
4 4 4

*2

42.00 A /420.0 A /1000 A (gua ranteed accura cy range: 4.00A to 1000 A) ±1.5% rdg ±5 dgt

N / A

42.00 A /420.0 A /200 0 A (guaranteed acc uracy ra nge: 4.00A to 1999 A) ±1.5% rdg ± 5 dgt

4

4.200 V/42.00 V/420.0 V/60 0 V ±1.8% rdg ±7 dgt

420.0 mV/4.200 V/42.00 V/420.0 V/60 0 V ±1.0% rdg ±3 dgt

420.0 Ω /4.200 k Ω/42 .00 kΩ /420.0 k Ω/4.2 00 MΩ /42.00 M Ω ±2.0% rdg ± 4 dgt

3280F,CM3289,CM3291 are
compatible with the CT6280 AC
Flexible Current Sensor

Φ130mm (5.1 in), 4200 A AC

Model 3280-70F includes 3280-10F AC Clamp
Meter and CT6280 AC Flexible Sensor as a set

*1

*4

With bac klight a nd Bluet ooth® communications turned OFF

±0.5% rd g ±0.5 mV

Order code

Order code

Basic accuracy

CM4141-50

CM4141-90

Order code

Order code

Order code

Order code

Order code

3280-10F

3280-70F

CM3289

CM3291

CM3281

Model

Measurement items

AC Current

Frequency

Display refresh rate 5 times/s
Operating temperature -10℃ to 65℃ (non-condensating)

Storage temperature

Dustproof and waterproof

Other

Power supply
Continuous operating time

Dimensions( W × H × D )

Weight

CM4001 CM4002•CM4003 Basic accuracy

4

N / A

4

N / A

CM4001: -10℃ to 65℃ (non-condensating)
CM4002, CM4003: -30℃ to 70℃ (non-condensating)

CM4002, CM4003: IP40

CM4001: LR03 Alkaline battery × 1, 32 hours
CM4002, CM4003:
LR6 Alkaline battery × 2, 48 hours (LR6,without Z3210)
CM4003: AC ADAPTER Z1013 (Option)

CM4001: 37 × 160 × 27 mm (1.46 × 6.30 × 1.06 in)
CM4002, CM4003: 64 × 233 × 36 mm (2.52 × 9.17 × 1.41 in)

CM4001: 115 g (4.1 oz)
CM4002, CM4003: 400 g (14.1 oz)

N / A

4

N / A

4

60.00 mA/600.0 mA/6.000A/60.00A/600.0A (guaranteed accuracy range: 0.60 mA to 600.0A)

6.000 mA/60.00 mA/600.0 mA/6.000A/60.00A/200.0A (guaranteed accuracy range: 0.060 mA to 200.0A)

999.9 Hz ±1.5% rdg ±0.1 Hz

999.9 Hz /200 0 Hz ±0.1% rdg ±0.1 Hz

Includes external output function

(CM4003 Only)

Pair with a recorder to capture

instantaneous or current waveforms

RMS value output

(RMS mode)

DC 600 mV/f.s.

Waveform output

*Using CONNECTION CABLE
L9097 (Accessories)

(WAVE mode)

AC 600 mV/f.s.

±1.5% rdg ±0.05 mA
±1.0% rdg ±0.005 mA

Order code

Order code

Order code

Order code

Order code

Order code

Order code

Model CM4001-90, CM4002-90, CM4003-90 includes Z3210 as a set

CM4001

CM4001-90

CM4002

CM4002-90

CM4003

CM4003-90

Z3210

14

AC Power

AC CLAMP POWER METER CM3286-50

φ46 mm=1.81 in

NEW

CM3286-50

AC 600 A

Φ 46

mm

Accessories

L9257

C0203

• LR03 Alkaline battery ×2

• Instruction manual

*1: Harmonic s can be dis played us ing dedi cated ap plicat ion sof tware (GEN NECT Cross)
*2: While in s torage, o r when meas uring re sistan ce or cur rent in an in sulated c onduc tor in a
compl etely dr y condit ion. Do no t use when we t.

True RMS

CAT IV 600 V

CAT III 1000 V

With Z3210

WIRELESS ADAPTER
Z3210 (Option)

Attach to enable Bluetooth
wireless technology

Order code

Order code

includes Z3210 as a set

CM3286-50

CM3286-90

Model CM3286-90

For more details

Product warranty for 3 years

Accuracy guaranteed for 1 year

Single
phase

Power
(Active/
reactive/
apparent)

Measurement parameters

AC Curren t

AC Vol tag e

Power factor

Phase angle

®

Freque ncy 45.0 Hz to 999.9 Hz

Simple A ctive En ergy
Consumption (Single-phase)

Harmonic
(With Z 3210)

Display refresh rate 2 times/s
Operating temperature -25℃ to 65℃, 80% RH or less (non-co ndensating)
Storage temperature -25℃ to 65℃, 80% RH or les s (non- conde nsatin g)

Other

Dustproof and waterproof

Power supply
Continuous operating time

Dimens ions ( W × H × D )
Weight 4 50 g (15. 9 oz)

Balanced
three-phase
3-wire

Balanced
three-phase
4-wire

*1

3.600 k W/36.00 kW/360. 0 kW
Guarant eed acc uracy ra nge: 0.005 k W to 360.0 k W
Basic a ccuracy: ±2.0 % rdg ±7 dgt

7.200 kW/72.00 kW/7 20.0 kW
guaranteed acc uracy ra nge: 0.020 kW to 623.5 k W
Basic a ccuracy: ±3.0% r dg ±10 dgt

10.80 kW/108.0 kW/1080 kW
guaranteed acc uracy ra nge: 0.040 k W to 1080 kW
Basic a ccuracy: ±2.0 % rdg ±3 dgt

6.000 A/60.00 A/600.0 A
Basic accuracy: ±1.0% rdg ±3 dgt

600.0 V
Basic accuracy: ±0.7% rdg ±3 dgt

Single-phase, Balanced three-phase 4-wire:
[Regeneration] -1.000 to -0.001, [Consumpt ion] 0.00 0 to 1.000
Balanced three-phase 3-wire:
[Regeneration] -0.001, [Consumpti on] 0.000 t o 1.000

Single -phase, Balanced three-p hase 4- wire :
[lead] -180.0° to -0.1°, [lag] 0.0° to 179.9°
Balanced three-phase 3-wire:
[lead] - 90.0° to - 0.1°, [lag] 0.0° to 90.0°

99.99 Wh/999.9 Wh/9.999 kWh/

99.99 kWh/999.9 kWh/9999 kWh/

Voltage or c urrent h armonic levels up to 30th order,
conten t factor, tot al harmo nic dis torti on ratio

*2

IP50

LR03 Alkaline ba tter y ×2
25 hours

65 × 241 × 35 mm (2.56 × 9.49 × 1.38 inc h)

15

9243graber

L4937 マグネットアダプタ

L4934 小ワニグチ

L9207-10

DT4911TestLead

L4930 接続ケーブル

L4931 延長ケーブル

L4932(+9207-10cap)

L4938

L4939

L4933 コンタクトピン

L4935 ワニ口

L4936 バスバー

9243graber

L4937 マグネットアダプタ

L4934 小ワニグチ

L9207-10

DM4910 熱電対

DT4911TestLead

L4930 接続ケーブル

L4931 延長ケーブル

L4932(+9207-10cap)

L4938

L4939

L4933 コンタクトピン

L4935 ワニ口

L4936 バスバー

L9804

L4934 小ワニグチ

L9207-10

DT4911TestLead

L4930 接続ケーブル

L4931 延長ケーブル

L4933 コンタクトピン

L4935 ワニ口

L9207-10

DT4911TestLead

L4930 接続ケーブル

L4931 延長ケーブル

L4933 コンタクトピン

L4934 小ワニグチ

L9207-10

DT4911TestLead

L4930 接続ケーブル

L4931 延長ケーブル

L4933 コンタクトピン

9243graber

L4934 小ワニグチ

L9207-10

DT4911TestLead

L4930 接続ケーブル

L4931 延長ケーブル

L4933 コンタクトピン

L4935 ワニ口

L4936 バスバー

9243graber

L4937 マグネットアダプタ

L4934 小ワニグチ

L9207-10

DT4911TestLead

L4930 接続ケーブル

L4931 延長ケーブル

L4933 コンタクトピン

L4935 ワニ口

L4936 バスバー

9243graber

L4937 マグネットアダプタ

L4934 小ワニグチ

L9207-10

DT4911TestLead

L4930 接続ケーブル

L4931 延長ケーブル

L4932(+9207-10cap)

L4933 コンタクトピン

L4935 ワニ口

L4936 バスバー

9243graber

L4937 マグネットアダプタ

L4934 小ワニグチ

L9207-10

DT4911TestLead

L4930 接続ケーブル

L4931 延長ケーブル

L4932(+9207-10cap)

L4938

L4933 コンタクトピン

L4935 ワニ口

L4936 バスバー

L4934 小ワニグチ

L9207-10

DT4911TestLead

L4930 接続ケーブル

L4931 延長ケーブル

L4933 コンタクトピン

L9207-10

DT4911TestLead

L4930 接続ケーブル

L4931 延長ケーブル

L4933 コンタクトピン

CT6280

L9208

CT6280

L9207-10

DT4911TestLead

L4930 接続ケーブル

9290-10

Options

Cable length 70 cm (2.3 ft)
With the Cap (Red ×1,Black ×1)

1

L9208

Φ130 mm (5.12 in)
4200 A AC

2

1

CT6280*

*1: Not available to use

3280-10F

CM3289
CM3291

3287*,3288*

3288-20*

CM4371-50
CM4373-50
CM4375-50
CM4141-50

CM3286-50

3280-10F, CM3289, CM3281, CM3291, 3287, 3288, 3288-20

TEST LEAD L9208

1

AC FLEXIBLE CURRENT SENSOR CT6280

2

CONTACT PIN SET L4933

3

SMALL ALLIGATOR CLIP SET L4934

4

CARRYING CASE 9398

5

CARRYING CASE C0205

6

TEST LEADS HOLDER 9209

7

CM4371-50, CM4373-50, CM4375-50, CM4141-50, CM3286-50

TEST LEAD L9300

1

TEST LEAD L9207-10

2

CONNECTION CABLE SET L4930

3

EXTENSION CABLE SET L4931

4

DC HIGH VOLTAGE PROBE P2000

5

THERMOCOUPLES(K) DT4910 For CM437x-50 series, CM4141-50

6

CONTACT PIN SET L4933

7

SMALL ALLIGATOR CLIP SET L4934

8

GRABBER CLIP L9243

9

TEST PIN SET L4932

10

ALLIGATOR CLIP SET L4935

11

BUS BAR CLIP SET L4936

12

MAGNETIC ADAPTER SET L4937

13

MAGNETIC ADAPTER SET 9804

14

TEST PIN SET L4938

15

BREAKER PIN SET L4939

16

CLAMP ON ADAPTER 9290-10 For CM3286-50

17

CONNECTION CORD L9257 Combination of L4930 and L4935

18

CARRYING CASE C0203

19

CM4002, CM4003

CONNECTION CABLE L9097

1

CONVERSION ADAPTER 9704

2

AC ADAPTER Z1013

3

CARRYING CASE C0203

4

with 3287, 3288, 3288-20

1

L9300

Cable length 95 cm (3.12 ft)

2

L9207-10

Cable length 90 cm (2.95 ft)

With the Cap (Red ×1, Black ×1)

3

L4930

4

L4931

L4930, L4931 can be used to extend the cable

5

4

P2000*

*4: Not available to
use with CM3286-50

6

4

DT4910*

For 3280-10F, CM3289, CM3281, CM3291

For 3280-10F, CM3289, 3287, 3288, 3288-20

Bundled accessory for CT6280

For 3280-10F, CM3289, 3287, 3288, 3288-20

Cable length 120 cm (3.94 ft)

Cable length 150 cm (4.92 ft)
with the coupling connector

Cable length 150 cm (4.92 ft) (Probe side)

L4933

L4934

L4933

L4934

L9243

L4932

L4935

L4936

L4937

9804

L4938

L4939

-40 to 260℃

Sensor length: 80
cm (2.62 ft)

9290-10

1

L9208

7

9209

21 3 4 5

L9207-10L9300 L4931 P2000L4930

87

L4934L4933

13 14

L4937 9804

19

C0203

1 2 3 4

L9097 Z10139704 C0203

48 mm (1.89 in)

3

*2

4

*2

7

*3

8

*3

*2: Remove the cap of L9208 before attaching it

48 mm (1.89 in)

*3: Remove the cap of L9207-10 before attaching it.
Slide the guard of the L9300 and attach it in
the measurement CAT II.

97 mm (3.82 in)

9

10

With the Cap (Red ×1, Black ×1)

11

12

30 mm (1.18 in)

13

14

15

Magnet : φ6 mm (0.24 in)

Magnet : φ11 mm (0.43 in)

With the Cap (Red ×1, Black ×1)

22 mm (0.87 in),φ3.7 mm (0.15 in)

16

1

2

22 mm (0.87 in)

1

φ3.7 mm (0.15 in)
48 mm (1.89 in)

2

φ2.6 mm (0.1 in)

17

9 10 11 12

L4932L9243 L4935 L4936

15 16 17

L4938 L4939 9290-10

62 3 4 5

C0205L4933CT6280 L4934 9398

6

DT4910

18

L9257

About the Marks

All in forma tion cor rect as of Mar. 14, 2022. A ll spec icat ions are s ubject t o change w ithout n otice. series_clampmeters_E12-23M Printed in Japan

Note: Comp any nam es and p roduct names a ppear ing in thi s broch ure are t radem arks o r regis tered t radem arks o f vario us comp anies.

*The Bluetooth® word mar k and logo s are reg ister ed trad emark s owned by Bluet ooth SIG, I nc. and a ny use of s uch marks by HIOK I E.E. CORPOR ATION is under license .

Safety standard measurement categories

Drop proof

Robust design capable of withstanding a drop from
a height of 1 m onto concrete

Backlight

Auto power OFF

Automatically turns off after a certain time

Display hold

True RMS

True RMS measurement for accurate measurement of
even distorted current waveforms

Low-pass lter

Cuts high frequency content to provide stable
numerical values for measurement

AUTO AC/DC

Automatically detects and measures AC and DC voltage

MAX/MIN/AVG value*

Displays the maximum, minimum, and average of
the displayed values

Peak measurement*

Displays the wave maximum and minimum peak values

Flexible current sensor can be connected

*For more detailed information, please refer to the next page.

*

AC voltage

DC voltage

DCV + ACV

Frequency

Resistance

Capacitance

Temperature

ACA current

DCA current

DCA + ACA

DC Power

Continuity check

Buzzer sounds when continuity is detected

Diode check

Displays voltage if in the correct direction,
and OVER if in the reverse direction

Non-Contact Voltage

Buzzer sounds when AC voltage is detected

Inrush (Rush current)

Measures inrush current when power is turned on, etc.