Hioki Hioki CM3286-01 Manual

CM3286
CM3286-01

AC CLAMP POWER METER

Visit us at www.TestEquipmentDepot.com

99 Washington Street
Melrose, MA 02176

Phone [phone]
Toll Free 1-800-517-8431

Instruction Manual



Safety Notes

When using for the first time

Power Measurement
Integrated Measurement
Auto Hold

Troubleshooting

May 2017 Edition 1
CM3286A961-00 17-05H

p.5

p.29
p.40
p.48

p.64

EN

* 6 0 0 5 0 3 1 3 0 *

Contents

Introduction ............................................................................................................... 1

Options (sold separately) ........................................................................................ 4

Safety Notes .............................................................................................................. 5

Usage Notes .............................................................................................................. 9

Part Names .............................................................................................................. 15

Operation keys........................................................................................................ 16

■Rotary switch ................................................................................................... 17

■Power-on Option Table (buzzer sound, resetting the instrument to the

factory settings, etc.) ....................................................................................... 18

Insert / Replace Batteries....................................................................................... 20

Inspection Before Measurement ........................................................................... 21

Screen / Basic Operation ....................................................................................... 22

■Screen display ................................................................................................. 23

■Switching the information shown on the measurement display ....................... 24

CM3286A961-00

i

Contents

Connecting the Clamp and Clips .......................................................................... 27

Current/Voltage Measurement (Frequency) [

] ................................................ 28

Power Measurement (Power/Power Factor)......................................................... 29

■AC single-phase measurement (1P2W)

■AC single-phase measurement (1P3W)

■AC 3-phase measurement (3P3W, balanced)

■AC 3-phase measurement (3P3W, unbalanced)

■AC 3-phase measurement (3P4W, balanced)

■AC 3-phase measurement (3P4W, unbalanced)

[var VA W] ............................................... 29

[var VA W] ............................................... 30

[3PW] ............................................ 31

[3PW] ....................................... 32

[3PW] ............................................ 34

[3PW] ....................................... 35

Phase Detection [Phase Detect]........................................................................... 38

Single-phase Active Energy Measurement (Integrated Measurement) [Setting

Wh] ........................................................................................................................... 40

Single-phase Energy Meter Comparison Function [Setting Wh] ...................... 42

■Setting the desired meter constant .................................................................. 46

Manual Hold / Auto Hold ........................................................................................ 48

Switching Ranges ................................................................................................... 51

MAX/ MIN/ AVG ........................................................................................................ 52

ii

Contents

Backlight / Auto Power Save (APS) ...................................................................... 55

Measurement Using the Clamp Adapter .............................................................. 56

®

Bluetooth

Communications (only for CM3286-01) ............................................. 57

■Installing the application software GENNECT Cross....................................... 58

■Turning on the Bluetooth

■Pairing the app with the CM3286-01 ............................................................... 60

■Making measurements with the Bluetooth

®

function .................................................................. 59

®

function ....................................... 61

Repairs, Inspections, and Cleaning ...................................................................... 62

Troubleshooting ..................................................................................................... 64

Specification ......................................................................................................... 69

■General Specification .................................................................................... 69

■Input/Output/Measurement Specification ...................................................... 71

■External Interface (Bluetooth

®

) Specification ................................................. 74

■Application Software Specification ................................................................ 74

Accuracy Table ....................................................................................................... 75

Equations ................................................................................................................ 87

iii

Contents

iv

Introduction

Introduction

Thank you for purchasing the Hioki CM3286/CM3286-01 AC Clamp Power Meter. To obtain
maximum performance from the instrument over the long term, be sure to read this manual
carefully and keep it handy for future reference.

This clamp power meter provides functionality for measuring AC current, voltage, power, and
frequency as well as for detecting phase.
The CM3286-01 also provides Bluetooth
data to be monitored and logged from a smartphone or tablet.

The instrument screen displays the alphanumeric characters as follows.

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

1 2 3 4 5 6 7 8 9 0

®

communications functionality, allowing measurement

1

Introduction

Package contents

When you receive the instrument, inspect it carefully to ensure that no damage occurred during
shipping. In particular, check the accessories, panel switches, and connectors. If damage is
evident, or if it fails to operate according to the specifications, contact your authorized Hioki
distributor or reseller.

Model CM3286 or CM3286-01



AC Clamp Power Meter

Accessories

Model L9257 Connection Cord



(Model L4930 Connection Cable Set (1.2 m)
+ Model L4935 Alligator Clip Set)
CAT IV 600 V/ CAT III 1000 V/ CAT II 1000 V

Model C0203 Carrying Case



LR03 Alkaline battery ×2



Instruction Manual



Precautions Concerning Use of Equipment



That Emits Radio Waves
(only for the CM3286-01)

(p. 8)

Precautions during shipment

Handle it carefully so that it is not damaged due to a vibration or shock.

2

Introduction

Trademarks

• Bluetooth® is a registered trademark of Bluetooth SIG, Inc.(USA). The trademark is used by
HIOKI E.E. CORPORATION under license.

• Android and Google Play are trademarks of Google, Inc.

• IOS is a registered trademark of Cisco in the U.S. and other countries.

• iPhone, iPad, iPad mini, iPad Pro, and iPod Touch are trademarks of Apple Inc.

Accuracy

We define measurement tolerances in terms of f.s. (fullscale), rdg. (reading), and dgt. (digit) values, with the
following meanings:

f.s. (maximum display
value or range)

rdg. (displayed value) The value currently being measured and indicated on the measuring instrument.

dgt. (resolution)

The maximum displayable value. This is usually the name of the currently selected
range.

The smallest displayable unit on a digital measuring instrument, i.e., the input value
that causes the digital display to show a "1" as the least-significant digit

3

Options (sold separately)

9243 graber

L4937 マグネットアダプ
タ

L4934 小ワニグチ

マグネ付ストラップ

DM4910 熱電対

DT4911TestLead

DT4912TestLead

L4930 接続ケーブル

9243 graber

L4937 マグネットアダプ
タ

L4934 小ワニグチ

マグネ付ストラップ

L9207-10

DM4910 熱電対

DT4911TestLead

DT4912TestLead

L4930 接続ケーブル

L4931renketu

9243 graber

L4937 マグネットアダプ
タ

L4934 小ワニグチ

マグネ付ストラップ

L9207-10

DM4910 熱電対

DT4911TestLead

DT4912TestLead

L4930 接続ケーブル

L4931renketu

L4931 延長ケーブル

L4932(+9207-10cap)

L4933 コンタクトピン

L4935 ワニ口

9243 graber

L4937 マグネットアダプ

9243 graber

L4937 マグネットアダプ
タ

L4934 小ワニグチ

マグネ付ストラップ

L9207-10

DM4910 熱電対

DT4911TestLead

DT4912TestLead

L4930 接続ケーブル

L4931renketu

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

L4937 マグネットアダプ
タ

9243 graber

L4937 マグネットアダプ
タ

L4934 小ワニグチ

マグネ付ストラップ

L9207-10

DM4910 熱電対

DT4911TestLead

DT4912TestLead

L4930 接続ケーブル

L4931renketu

L4931 延長ケーブル

L4932(+9207-10cap)

9243 graber

L4937 マグネットアダプ
タ

L4934 小ワニグチ

マグネ付ストラップ

L9207-10

DM4910 熱電対

DT4911TestLead

DT4912TestLead

L4930 接続ケーブル

L4931renketu

L4931 延長ケーブル

L4932(+9207-10cap)

L4933 コンタクトピン

L4937 マグネットアダプ
タ

L4934 小ワニグチ

L4937 マグネットアダプ
タ

L4934 小ワニグチ

マグネ付ストラップ

Options (sold separately)

L9207-10 Test Lead

L4930 Connection Cable Set

(1.2 m)

L4931 Extension Cable Set

(1.5 m, with the coupling connector)

( : See p. 8)

*1: CAT IV 600 V/ CAT III 1000 V/ CAT II 1000 V *6: 33 V AC/ 70 V DC
*2: CAT IV 600 V/ CAT III 1000 V *7: CAT III 600 V/ CAT II 600 V
*3: CAT III 1000 V *8: Can also be connected to the tip of
*4: CAT III 600 V
*5: CAT III 300 V/ CAT II 600 V

4

*

1

2

*

2

*

the L4932.

L4933 Contact Pin Set

L4934 Small Alligator Clip Set

L4935 Alligator Clip Set

9243 Grabber Clip

L4936 Bus Bar Clip Set

L4937 Magnetic Adapter Set
9804 Magnetic Adapter

L4932 Test Pin Set

L4938 Test Pin Set

L4939 Breaker Pin Set

8

*6,*

8

*5,*

2

*

3

*

4

*

3

*

3

*

1

*

7

*

4

*

9290-10
Clamp On Adapter

4

*

Safety Notes

Safety Notes

This instrument is designed to conform to IEC 61010 Safety Standards, and has been
thoroughly tested for safety prior to shipment. However, using the instrument in a way not
described in this manual may negate the provided safety features.
Before using the instrument, be certain to carefully read the following safety notes.

DANGER

Mishandling during use could result in injury or death, as well as damage
to the instrument. Be certain that you understand the instructions and
precautions in the manual before use.

WARNING

With regard to the electricity supply, there are risks of an electric shock, a heat

generation, a re, and an arc ash due to short‑circuit. Individuals using an

electrical measuring instrument for the first time should be supervised by a
technician who has experience in electrical measurement.

5

Safety Notes

WARNING

Protective gear
This instrument is measured on a live line. To prevent an electric shock, use

appropriate protective insulation and adhere to applicable laws and regulations.

Notation

In this document, the risk seriousness and the hazard levels are classified as follows

Indicates information related
to the operation of the
instrument or maintenance
tasks with which the
operators must be fully
familiar.

Indicates prohibited actions.

Indicates the action which
must be performed.

DANGER

WARNING

CAUTION

Indicates an imminently
hazardous situation that will result
in death or serious injury to the
operator.

Indicates a potentially hazardous
situation that may result in death
or serious injury to the operator.

Indicates a potentially hazardous
situation that may result in minor
or moderate injury to the operator
or damage to the instrument or
malfunction.

IMPORTANT

6

Symbols affixed to the instrumen

Indicates cautions and hazards.
When the symbol is printed on the
instrument, refer to a corresponding
topic in the Instruction Manual.

Indicates that dangerous voltage may
be present at this terminal.

Indicates that the instrument may be
connected to or disconnected from a
live conductor.

Indicates a instrument that has been
protected throughout by double
insulation or reinforced insulation.

Indicates that the product incorporates

®

wireless technology.

FCC ID

Bluetooth

Indicates the ID number of the
wireless module certified by the U.S.
Federal Communications Commission
(FCC).

Indicates AC (Alternating Current).

Indicates DC (Direct Current).

Indicates a grounding terminal.

Indicates the Waste Electrical and
Electronic Equipment Directive (WEEE
Directive) in EU member states.

Indicates that the product conforms to
regulations set out by the EU Directive.

Indicates the identification number of a

IC

wireless module approved by Industry
Canada (IC).

Safety Notes

7

Safety Notes

Measurement categories

To prevent an electric shock, do not exceed the lower of the ratings shown on
the instrument and connecting cords.

Distribution panel

Service entrance

Service drop

CAT IV

(≤600 V)

Power meter

8

DANGER

Internal wiring

CAT III

(≤1000 V)

Fixed installation

CAT II

(≤1000 V)

T

Outlet

Usage Notes

Usage Notes

Follow these precautions to ensure safe operation and to obtain the full benefits of the various
functions.

DANGER

• Do not use the instrument with circuits that exceed its
ratings or specifications. Doing so may damage th
instrument or cause it to become hot, resulting in bodily
injury.

• The instrument must not be used to measure current in
high‑voltage lines (1000 V or more). Attempting to do so

could cause a short‑circuit or accident resulting in injury

or death. Also, do not perform measurement around a bare
conductor.

• To prevent an electric shock, do not touch any areas
beyond the barrier while the instrument is in use.

Barrier

9

Usage Notes

10

DANGER

• Do not short‑circuit two wires to be measured by bringing the clip or jaw
tip of the connecting cords into contact with them. Arcs or such grave
accidents are likely to occur.

• To prevent an electric shock, be careful to avoid shorting live lines with the
connecting cords tip.

• To prevent a short‑circuit or an electric shock, do not touch the metal part of
the connecting cords tip.

• The maximum measurement current varies with the frequency, and the
current that can be measured continuously is limited. Operating the
instrument at less than this limitation is referred to as derating. Do not
measure currents in excess of the derating curve. Doing so may result in
instrument damage or malfunction, a fire, or a burn due to sensor heating

• It is recommended to make measurements on the secondary side of the
distribution panel. Making measurements on the primary side of the panel,
where currents are higher, poses a higher risk of instrument or equipment
damage in the event of a short‑circuit.

Usage Notes

WARNING

• Installing the instrument in inappropriate locations may cause a malfunction
of instrument or may give rise to an accident. Avoid the following locations.

• Exposed to direct sunlight or high temperature

• Exposed to corrosive or combustible gases

• Exposed to a strong electromagnetic field or electrostatic charg

• Near induction heating systems (such as high‑frequency induction heating
systems and IH cooking equipment)

• Susceptible to vibration

• Exposed to water, oil, chemicals, or solvents

• Exposed to high humidity or condensation

• Exposed to high quantities of dust particles

• Although this instrument is designed to resist the ingress of dust and
dripping water, it is not entirely waterproof or dustproof. Therefore, to prevent
an electric shock, do not use it in a wet or dusty environment.

•

Battery may explode if mistreated. Do not short‑circuit, recharge, disassemble
or dispose of in fire

11

Usage Notes

• Use only the specified connection cords. Use of any connection cord no

• To prevent an electric shock, set the rotary switch to the OFF position,

• To prevent instrument damage or an electric shock, use only the screw for

• Options may include connection cords which uses sleeves. To prevent

• If the sleeves are inadvertently removed during measurement, stop the

12

WARNING

specified by our company does not allow safe measurements

disconnect all connection cords, and remove the instrument from the
measurement object before replacing the batteries.

securing the battery cover in place that is originally installed. If you have lost
a screw or find that a screw is da aged, please contact your authorized Hioki
distributor or reseller for replacement.

a short‑circuit accident, be sure to use the connection cords with the

sleeves attached when performing measurements in the CAT III or CAT IV
measurement categories. (See "Measurement categories" (p. 8))

measurement.

Usage Notes

CAUTION

• To avoid damage to the instrument, protect it from physical shock when
transporting and handling it. Be especially careful to avoid physical shock due to
dropping it.

• Do not place foreign objects between jaws or insert foreign objects into the gaps of
the sensor head. Doing so may worsen the performances of the sensor or interfere
with clamping action.

• Poor performance or damage from battery leakage could result. Observe the
cautions listed below.

• Do no mix old and new batteries, or different types of batteries.

• Be careful to observe the battery polarity during installation.

• Do not use batteries after their recommended expiry date.

• Do not leave depleted batteries inside the instrument.

• Replace batteries only with the specified type

• Keep the jaw closed when not in use, to avoid accumulating dust or dirt on the
facing core surfaces, which could interfere with clamp performance.

• The cord is hardened in freezing temperature. Do not bend or pull it to avoid
tearing its shield or cutting cord.

IMPORTANT

Inverter secondary-side waveforms and waveforms that include a large noise component may not be
measured accurately.

13

Usage Notes

Current measurement precautions

14

Do not touch.

NO

Do not pinch wire
between jaws.

NO

Do not clamp
around two wires.

NO

Do not input
excessively high
currents or voltages.

NO

(Flashes red)

Part Names

Front

Lever

(CM3286-01)

Jaw

Barrier*

Rotary switch

Part Names

Rear

Battery cover

(p. 12)

HOLD key

LCD

* Do not touch any areas beyond the barrier while the instrument is in use.

SHIFT key

(Selects function indicated in
blue lettering.)

Operation keys

Voltage input terminal

(p. 9)

L9257 Connection Cord

Alligator clip

(p. 8)

Barrier*

Connector

Cord

Sleeve

15

Operation keys

Operation keys

Key Short press Long press (1 sec.)

Activates/cancels manual hold operation p. 48

HOLD

SHIFT

RANGE

MAX/MIN

16

Start/stop integration, clears the integrated
energy value (during energy measurement)
Switches the setting (when setting meter
constants)
Switches from the connection display to
the measurement display (during 3-phase
power measurement)

Switches the information shown on the
measurement display

Switches ranges p. 51

Count up (when setting meter constants) p. 46

Displays and switches MAX/MIN/AVG value

Count down (when setting meter constants)

Toggles the display backlight on and off p. 55

p. 41

Activates/cancels automatic hold

p. 46

operation

p. 22

Switches between 3-phase/3-wire
and 3-phase/4-wire measurement

p. 24

during 3-phase power measurement
(setting is not stored)

High speed count up (when setting
meter constants)

p. 52

Cancels the display of MAX/MIN/AVG value

High speed count down (when setting

p. 46

meter constants)

Enables/disables external
communications (Bluetooth®) (only
for CM3286-01, setting is stored)

p. 48

p. 34
p. 35

–

p. 52

–

p. 59

Rotary switch

"Phase Detection [Phase Detect]" (p. 38)

• "AC 3-phase measurement (3P3W, balanced) [3PW]" (p. 31)

• "AC 3-phase measurement (3P3W, unbalanced) [3PW]" (p. 32)

• "AC 3-phase measurement (3P4W, balanced) [3PW]" (p. 34)

• "AC 3-phase measurement (3P4W, unbalanced) [3PW]" (p. 35)

• "Single-phase Active Energy Measurement (Integrated Measurement) [Setting Wh]" (p. 40)

• "Single-phase Energy Meter Comparison Function [Setting Wh]" (p. 42)

• "AC single-phase measurement (1P2W) [var VA W]" (p. 29)

• "AC single-phase measurement (1P3W) [var VA W]" (p. 30)

"Current/Voltage Measurement (Frequency) [ ]" (p. 28)

Turns off the instrument.

Operation keys

When functions other than OFF is selected, the instrument turns on.
Select the desired function.

17

Operation keys

Power‑on Option Table (buzzer sound, resetting the instrument to the
factory settings, etc.)

+

Switching the auto power save
(APS) function (p. 55)

Displaying product information
or displaying all indicators
(Display varies depending on the
position of the rotary switch.)

Switching between balanced and
unbalanced operation (during AC

3‑phase power measurement)

Buzzer sound (ON/OFF) –

Switching the auto backlight off
function (p. 55)

Turn on the power while pressing the operation key.
(Turn the rotary switch from OFF.)

Setting See Operating instruction

18

Factory

setting

–

3PW: Serial number

–

Wh: Model number
W: Version of software
Besides the above: Displays all indicators

p. 32

p. 35

– ON Yes

3PW

retained?

ON –

– –

– –

ON Yes

Setting

Setting See Operating instruction

Operation keys

Factory

setting

Setting

retained?

Selecting the CT ratio p. 56

Reset to the factory setting –

1/1 Ye s

– –

19

Insert / Replace Batteries

Insert / Replace Batteries

Fully charged.

As the battery charge diminishes, black charge bars disappear, one by one, from the left of the
battery indicator.

The battery voltage is low. Replace the batteries as soon as possible.
The instrument may lose power when the backlight turns on, when a buzzer sounds, etc.

The battery is exhausted. Replace with new batteries.

(Flashes)

Required items: No. 2 Phillips screwdriver and LR03 Alkaline battery ×2
Recommended screw tightening torque: 0.7 N・m

Exercise care to orient batteries properly.

3

20

4

1

2

5

Inspection Before Measurement

Inspection Before Measurement

Verify that the instrument operates normally to ensure that no damage occured during storage
or shipping. If you find any damage, contact your authorized Hioki distributor or reselle .

Check item

The battery cover is closed and its screw



has been securely tightened.

There is no foreign matter on the voltage



input terminals. (p. 15)

The battery voltage (p. 20) is sufficient



There is no damage to the connection cords insulation,



and neither the white sheathing nor metal conductor
inside the wire are exposed.

The instrument is neither damaged nor cracked.



No indicators are missing.



→

(All indicators displayed)

21

Screen / Basic Operation

Screen / Basic Operation

Setting the rotary switch to a position other than OFF causes the instrument to turn on and the
screen to activate. e.g.: During balanced 3-phase 3-wire active power measurement

Connection display Measurement display

Displays the connection locations for 3-phase
power measurement and phase detection.
Connects the wire.

Wire around which to clamp instrument

Black Red

Wires to which to clip connection cords

IMPORTANT

If measured with a wrong wire connection, a correct value does not appear.

22

Displays the measured value.

Screen display

(All indicators displayed)

"Error display" (p. 66)
"Warning display" (p. 66)

* The key lock feature may be activated

according to the usage state of the
application software.

Screen / Basic Operation

Appearing: Bluetooth® communications
function enabled
Flashing: Bluetooth
(only for CM3286-01)

,

Connection type (not shown during single­phase measurement)

Unbalanced mode operation (not shown
during balanced mode operation)

Manual range operation (not shown during
auto-range operation)

CT ratio (not shown during 1/1)

Measured value held

Auto power-off enabled

Current RMS value or voltage RMS value
exceeded range

Key lock enabled*

®

communications active

23