Hioki 9667 User manual

Introduction

Thank you for purchasing the HIOKI Model 9667 Flexible Clamp On

Sensor.

To obtain maximum performance from the product, please read this

manual first, and keep it handy for future reference.

The 9667 Flexible Clamp On Sensor measures large currents of up to

5000 A AC.

The hollow core coil makes the sensor unit highly flexible, allowing it to

be used for clamping in narrow spaces with crowded wiring. This is a

feature not seen in sensors that use conventional cores.

Initial Inspection

When you receive the product, inspect it carefully to ensure that no

damage occurred during shipping. If damage is evident, or if it fails to

operate according to the specifications, contact your dealer or Hioki

representative.

Preliminary Checks

• Before using the product the first time, verify that it operates nor-

mally to ensure that the no damage occurred during storage or ship-

ping. If you find any damage, contact your dealer or Hioki

representative.

• Before using the product, make sure that the insulation on the

cables is undamaged and that no bare conductors are improperly

exposed. Using the product in such conditions could cause an elec-

tric shock, so contact your dealer or Hioki representative for repair.

Maintenance and Service

• To clean the product, wipe it gently with a soft cloth moistened with

water or mild detergent. Never use solvents such as benzene, alco-

hol, acetone, ether, ketones, thinners or gasoline, as they can

deform and discolor the case.

• If the product seems to be malfunctioning, contanct your dealer or

Hioki representative.

（Accuracy guaranteed for one year at 23±5°C (73±9°F), 80%RH or less)

f.s. : maximum display value or scale length (This is usually the maximum value of the

currently selected range.)

rdg.: reading value (The value currently being measured and indicated on the measuring

product)

Follow these precautions to ensure safe operation and to obtain the

full benefits of the various functions.

Measurement categories

This product complies with CATIII (1000 V) safety requirements.

To ensure safe operation of measurement products, IEC 61010 estab-

lishes safety standards for various electrical environments, catego-

rized as CAT II to CAT IV, and called measurement categories.

CAT II: Primary electrical circuits in equipment connected to an AC

electrical outlet by a power cord (portable tools, household appli-

ances, etc.) CAT II covers directly measuring electrical outlet recepta-

cles.

CAT III: Primary electrical circuits of heavy equipment (fixed installa-

tions) connected directly to the distribution panel, and feeders from the

distribution panel to outlets.

CAT IV: The circuit from the service drop to the service entrance, and

to the power meter and primary overcurrent protection device (distri-

bution panel).

Using a measurement product in an environment designated with a

higher-numbered category than that for which the product is rated

could result in a severe accident, and must be carefully avoided.

Use of a measurement instrument that is not CAT-rated in CAT II to

CAT IV measurement applications could result in a severe accident,

and must be carefully avoided.

Safety Symbol

The following symbols in this manual indicate the relative importance

of cautions and warnings.

Indicates that incorrect operation presents an extreme haz-

ard that could result in serious injury or death to the user.

Indicates that incorrect operation presents a significant haz-

ard that could result in serious injury or death to the user.

Indicates that incorrect operation presents a possibility of

injury to the user or damage to the product

Advisory items related to performance or correct operation of

the product.

This manual contains information and warnings essential for safe

operation of the product and for maintaining it in safe operating condi-

tion. Before using the product, be sure to carefully read the following

safety notes.

Accurate measurement may be impossible in the presence of strong

magnetic fields, such as near transformers and high-current conduc-

tors, or in the presence of strong electromagnetic fields such as near

radio transmitters.

Overview

Inspection and Maintenance

The Declaration of Confor that comply to CE

mark requirements may be the HIOKI website.

9667

FLEXIBLE

CLAMP ON SENSOR

Instruction Manual

October 2012 Revised edition 8

Printed in Japan

9667A981-08 12-10H

Specifications

Rated primary current 5000 to 500 A AC/ 500 to 50 A AC

Output voltage 500 mVAC f.s.

Amplitude accuracy

2% rdg.±1.5 mV

(at 45 Hz to 66 Hz, at sensor center)

Frequency band 10 Hz to 20 kHz (amplitude error: within ±3dB)

Phase accuracy Within ±1

(at 45 Hz to 66 Hz)

Temperature characteristic

2% rdg./°

Effect of conductor

position Within ±3% (deviation from center)

Effect of external electro-

magnetic field 5 A equivalent,7.5 A max. (in an external electro-

magnetic field of 400 A/m

Maximum input current 10,000 A continuous (at 45 to 66 Hz)

Dielectric strength 6880 Vrms for 15 seconds (between circuit and sen-

sor, at 50/60 Hz)

Maximum rated voltage to

earth 1000 VACrms or less

Operating temperature

&humidity 0 to 40

°C (32 to 104°F)

, 80%RH or less (non-con-

densating)

Temperature of conductor

to be measured 50

°C or less (122°F or less)

Storage temperature

&humidity -10 to 50

°C (14 to 122°F)

, 80%RH or less (non-con-

densating)

Operating environment Indoors, altitude up to 2000 m (6562-ft.)

Applicable Standards

(Safety) EN61010

Measurement Category III, Pollution

Degree 2

(Anticipated Transient Overvoltage: 8000 V

(EMC)

EN61326

EN61000-3-2

EN61000-3-3

Power supply LR03 alkaline battery x 4 (1.5 VDC x 4) or

9445-02/03 AC ADAPTER (9 VDC) (option)

(Voltage fluctuations of ±10% from the rated supply

voltage are taken into account.)

Maximum rated power

35 mVA (using batteries), 50 mVA (using AC adapter)

Battery life Approx. 7.5 days (continuous)

Output impedance 100

or less

Measurable conductor

diameter φ254 mm or less

Cable length Approx. 2 m (78.74”) (between sensor and circuit),

approx. 1m (39.37”) (output cord)

Dimensions Approx. 910 mm (35.83”)(when sensor unit is open)

Approx. 57.5W x 86.5Hx 30D mm (2.26”W x 3.41”H

x 1.18”D) (Circuit box)

Mass Approx. 450 g (15.9 oz.) (including batteries)

Accessories Instruction Manual, LR03 alkaline battery x 4

Options 9445-02 AC Adapter

9445-03 AC Adapter

Safety

This product is designed to conform to IEC 61010 Safety Stan-

dards, and has been thoroughly tested for safety prior to ship-

ment. However, mishandling during use could result in injury or

death, as well as damage to the product. Using the instrument/

device/ product in a way not described in this manual may

negate the provided safety features.

Be certain that you understand the instructions and precau-

tions in the manual before use. We disclaim any responsibility

for accidents or injuries not resulting directly from product

defects.

In the manual, the symbol indicates particularly impor-

tant information that the user should read before using the

product.

The symbol printed on the product indicates that the

user should refer to a corresponding topic in the manual

(marked with the symbol) before using the relevant

function.

Indicates a double-insulated device.

Indicates AC (Alternating Current).

Indicates DC (Direct Current).

Wear appropriate protective insulation (insulating rubber

gloves and boots, helmet and etc.) when connecting and

disconnecting from live electric circuits.

Usage Notes

• To avoid short circuits and potentially life-threatening

hazards, never attach the product to a circuit that

operates at more than the 1000 V AC, or over bare

conductors.

• This product should only be connected to the sec-

ondary side of a breaker, so the breaker can prevent

an accident if a short circuit occurs. Connections

should never be made to the primary side of a

breaker, because unrestricted current flow could

cause a serious accident if a short circuit occurs.

• To avoid electric shock, do not allow the product to get wet,

and do not use it when your hands are wet.

• To avoid electric shock when measuring live lines, wear

appropriate protective gear, such as insulated rubber gloves,

boots and a safety helmet.

• To avoid electric shock, stop using this product if it shows

either of the following signs of damage, and do not use the

product again until it has been repaired.

1.The blue sensor cover is damaged, and any red part is visi-

ble beneath the cover.

2.The yellow connector cover is damaged, and any black part

is visible beneath the cover.

• Do not store or use the product where it could be exposed to direct

sunlight, high temperature or humidity, or condensation. Under

such conditions, the product may be damaged and insulation may

deteriorate so that it no longer meets specifications.

• This product is not designed to be entirely water- or dust-proof. To

avoid damage, do not use it in a wet or dusty environment.

• Be careful to avoid dropping the product or otherwise subjecting

them to mechanical shock, which coulddamage the mating surfac-

es of the core and adversely affect measurement.

• Keep the clamp sensor connnector free from foreign objects, which

could interfere with clamping action.

• Avoid stepping on or pinching the cable, which could damage the

cable insulation.

• To avoid damaging the cables, do not bend or pull the cables.

• Note that the product may be damaged if current exceeding the se-

lected measurement range is applied for a long time.

Attach the clamp around only one conductor. Single-phase (2-wire) or

three-phase (3-wire) cables clamped together will not produce any

reading.

Parts Names

BNC connector

Clamp sensor connnector

Circuit box

Cable

Sensor

Circuit box

AC Adapter connection terminal

(Use the optional 9445-02/03 AC

Adapter)

RANGE button

(500A/ 5000A)

POWER

ON/ OFF

Measurement Procedures

• When disconnecting the BNC connector, be sure to release the

lock before pulling off the connector. Forcibly pulling the connector

without releasing the lock, or pulling on the cable, can damage the

connector.

• To prevent damage to connected instruments, never connect or

disconnect the sensor while the power is on.

Engage the BNC connector

grooves with the connector-

guide projections, and turn the

connector clockwise to lock the

components.

To remove the BNC connec-

tor: Turn the connector coun-

terclockwise and pull it out.

Remove the sensor while

pressing both sides of the sen-

sor connector as shown in the

illustration.

If the sensor connector does

not move, check whether the

LOCK has been released.

Hold only one conductor at the

clamp center with the current

direction indictor pointing

toward the load side.

Securely push the tip of the

sensor into the sensor connec-

tor.

If necessary, lock the sensor

connector.

Turn ON the power to the circuit

box. (default setting:5000 A)

Select the appropriate range

(500/5000 A) using the RANGE

button. If the power goes off

and then on again, the range

will always reset to 5000 A.

When using the AC adapter for

continuous monitoring, we rec-

ommend that you also use bat-

teries to prevent interruptions

due to instantaneous power

outages.

(If the AC adapter is not used

together with batteries, the

power goes OFF following an

instantaneous power outage.)

Sensor connector

LOCK

To LOCK, turn the

sensor in the

direction of the

LOCK mark until

you hear a click.

UNLOCK

Electric

conductor

LOAD

SOURCE

Clamp the conductor.

Position the clamp with the current

direction indicator pointing toward the

load side. (If installed in the opposite

direction,the phase deviates 180

degrees.)

Current direction

indicator

Connect the BNC connector.

Connector

guide BNC connector grooves

Lock

Open the sensor unit.

Cable

Sensor

connector

Remove

Sensor

Push

Turn the power on and

select range.

Replacing the Batteries

• To avoid electric shock when replacing the batteries, first dis-

connect the clamp from the object to be measured.

• During battery replacement, use caution not to put any foreign

materials such as a metal object into the circuit box to avoid

damage to the product.

• After replacing the batteries, replace the cover and screws

before using the product.

• Battery may explode if mistreated. Do not short-circuit,

recharge, disassemble or dispose of in fire.

• Handle and dispose of batteries in accordance with local regu-

lations.

• Do not mix old and newbatteries, or different types of batteries. Al-

so, be careful to observe battery polarity during installation. Other-

wise, poor performance or damage from battery leakage could

result.

• To avoid corrosion and damage to this product from battery leak-

age, remove the batteries from the product if it is to be stored for a

long time.

• After use, always turn OFF the power.

• If the power does not go ON after replacing batteries, the fuse may

be blown. In this case, do not attempt to replace the fuse or repair

the product. Contact your dealer or a HIOKI representative.

• When using an AC adapter, always use the optional 9445-02/03

AC Adapter.

Clamp Sensor Connector Lock System

OFF

Necessary tool:

Precision Phillips screwdriver

1. Turn OFF the power to the

circuit box.

2. Turn the circuit box over and

use a Phillips screwdriver to

remove the two retaining

screws from the lower case.

3. Remove the upper case and

mount four new LR03 alkaline

batteries. Make sure the

polarity is correct.

4. Mount the upper case and

tighten the retaining screws.

Upper case

Screws

Lower case

• If you pull out hard the lock-

ing part of the Clamp sensor

connector, the locking part

might be dislodged.

• If this happens, reconnect

the connector so that the

current direction indicator

faces inside as shown in the

illustration. If the indicator is

faced outside, the current

direction indicator will indi-

cate the opposite direction

to the actual measuring cur-

rent.

Locking part

Clamp sensor connnector

Current direction indicator

MEMO

Attach the clamp around only one conductor. Single-phase (2-wire) or

three-phase (3-wire) cables clamped together will not produce any

reading.

Parts Names

BNC connector

Clamp sensor connnector

Circuit box

Cable

Sensor

Circuit box

AC Adapter connection terminal

(Use the optional 9445-02/03 AC

Adapter)

RANGE button

(500A/ 5000A)

POWER

ON/ OFF

Measurement Procedures

• When disconnecting the BNC connector, be sure to release the

lock before pulling off the connector. Forcibly pulling the connector

without releasing the lock, or pulling on the cable, can damage the

connector.

• To prevent damage to connected instruments, never connect or

disconnect the sensor while the power is on.

Engage the BNC connector

grooves with the connector-

guide projections, and turn the

connector clockwise to lock the

components.

To remove the BNC connec-

tor: Turn the connector coun-

terclockwise and pull it out.

Remove the sensor while

pressing both sides of the sen-

sor connector as shown in the

illustration.

If the sensor connector does

not move, check whether the

LOCK has been released.

Hold only one conductor at the

clamp center with the current

direction indictor pointing

toward the load side.

Securely push the tip of the

sensor into the sensor connec-

tor.

If necessary, lock the sensor

connector.

Turn ON the power to the circuit

box. (default setting:5000 A)

Select the appropriate range

(500/5000 A) using the RANGE

button. If the power goes off

and then on again, the range

will always reset to 5000 A.

When using the AC adapter for

continuous monitoring, we rec-

ommend that you also use bat-

teries to prevent interruptions

due to instantaneous power

outages.

(If the AC adapter is not used

together with batteries, the

power goes OFF following an

instantaneous power outage.)

Sensor connector

LOCK

To LOCK, turn the

sensor in the

direction of the

LOCK mark until

you hear a click.

UNLOCK

Electric

conductor

LOAD

SOURCE

Clamp the conductor.

Position the clamp with the current

direction indicator pointing toward the

load side. (If installed in the opposite

direction,the phase deviates 180

degrees.)

Current direction

indicator

Connect the BNC connector.

Connector

guide BNC connector grooves

Lock

Open the sensor unit.

Cable

Sensor

connector

Remove

Sensor

Push

Turn the power on and

select range.

Replacing the Batteries

• To avoid electric shock when replacing the batteries, first dis-

connect the clamp from the object to be measured.

• During battery replacement, use caution not to put any foreign

materials such as a metal object into the circuit box to avoid

damage to the product.

• After replacing the batteries, replace the cover and screws

before using the product.

• Battery may explode if mistreated. Do not short-circuit,

recharge, disassemble or dispose of in fire.

• Handle and dispose of batteries in accordance with local regu-

lations.

• Do not mix old and new batteries, or different types of batteries. Al-

so, be careful to observe battery polarity during installation. Other-

wise, poor performance or damage from battery leakage could

result.

• To avoid corrosion and damage to this product from battery leak-

age, remove the batteries from the product if it is to be stored for a

long time.

• After use, always turn OFF the power.

• If the power does not go ON after replacing batteries, the fuse may

be blown. In this case, do not attempt to replace the fuse or repair

the product. Contact your dealer or a HIOKI representative.

• When using an AC adapter, always use the optional 9445-02/03

AC Adapter.

Clamp Sensor Connector Lock System

OFF

Necessary tool:

Precision Phillips screwdriver

1. Turn OFF the power to the

circuit box.

2. Turn the circuit box over and

use a Phillips screwdriver to

remove the two retaining

screws from the lower case.

3. Remove the upper case and

mount four new LR03 alkaline

batteries. Make sure the

polarity is correct.

4. Mount the upper case and

tighten the retaining screws.

Upper case

Screws

Lower case

• If you pull out hard the lock-

ing part of the Clamp sensor

connector, the locking part

might be dislodged.

• If this happens, reconnect

the connector so that the

current direction indicator

faces inside as shown in the

illustration. If the indicator is

faced outside, the current

direction indicator will indi-

cate the opposite direction

to the actual measuring cur-

rent.

Locking part

Clamp sensor connnector

Current direction indicator

MEMO

Attach the clamp around only one conductor. Single-phase (2-wire) or

three-phase (3-wire) cables clamped together will not produce any

reading.

Parts Names

BNC connector

Clamp sensor connnector

Circuit box

Cable

Sensor

Circuit box

AC Adapter connection terminal

(Use the optional 9445-02/03 AC

Adapter)

RANGE button

(500A/ 5000A)

POWER

ON/ OFF

Measurement Procedures

• When disconnecting the BNC connector, be sure to release the

lock before pulling off the connector. Forcibly pulling the connector

without releasing the lock, or pulling on the cable, can damage the

connector.

• To prevent damage to connected instruments, never connect or

disconnect the sensor while the power is on.

Engage the BNC connector

grooves with the connector-

guide projections, and turn the

connector clockwise to lock the

components.

To remove the BNC connec-

tor: Turn the connector coun-

terclockwise and pull it out.

Remove the sensor while

pressing both sides of the sen-

sor connector as shown in the

illustration.

If the sensor connector does

not move, check whether the

LOCK has been released.

Hold only one conductor at the

clamp center with the current

direction indictor pointing

toward the load side.

Securely push the tip of the

sensor into the sensor connec-

tor.

If necessary, lock the sensor

connector.

Turn ON the power to the circuit

box. (default setting:5000 A)

Select the appropriate range

(500/5000 A) using the RANGE

button. If the power goes off

and then on again, the range

will always reset to 5000 A.

When using the AC adapter for

continuous monitoring, we rec-

ommend that you also use bat-

teries to prevent interruptions

due to instantaneous power

outages.

(If the AC adapter is not used

together with batteries, the

power goes OFF following an

instantaneous power outage.)

Sensor connector

LOCK

To LOCK, turn the

sensor in the

direction of the

LOCK mark until

you hear a click.

UNLOCK

Electric

conductor

LOAD

SOURCE

Clamp the conductor.

Position the clamp with the current

direction indicator pointing toward the

load side. (If installed in the opposite

direction,the phase deviates 180

degrees.)

Current direction

indicator

Connect the BNC connector.

Connector

guide BNC connector grooves

Lock

Open the sensor unit.

Cable

Sensor

connector

Remove

Sensor

Push

Turn the power on and

select range.

Replacing the Batteries

• To avoid electric shock when replacing the batteries, first dis-

connect the clamp from the object to be measured.

• During battery replacement, use caution not to put any foreign

materials such as a metal object into the circuit box to avoid

damage to the product.

• After replacing the batteries, replace the cover and screws

before using the product.

• Battery may explode if mistreated. Do not short-circuit,

recharge, disassemble or dispose of in fire.

• Handle and dispose of batteries in accordance with local regu-

lations.

• Do not mix old and new batteries, or different types of batteries. Al-

so, be careful to observe battery polarity during installation. Other-

wise, poor performance or damage from battery leakage could

result.

• To avoid corrosion and damage to this product from battery leak-

age, remove the batteries from the product if it is to be stored for a

long time.

• After use, always turn OFF the power.

• If the power does not go ON after replacing batteries, the fuse may

be blown. In this case, do not attempt to replace the fuse or repair

the product. Contact your dealer or a HIOKI representative.

• When using an AC adapter, always use the optional 9445-02/03

AC Adapter.

Clamp Sensor Connector Lock System

OFF

Necessary tool:

Precision Phillips screwdriver

1. Turn OFF the power to the

circuit box.

2. Turn the circuit box over and

use a Phillips screwdriver to

remove the two retaining

screws from the lower case.

3. Remove the upper case and

mount four new LR03 alkaline

batteries. Make sure the

polarity is correct.

4. Mount the upper case and

tighten the retaining screws.

Upper case

Screws

Lower case

• If you pull out hard the lock-

ing part of the Clamp sensor

connector, the locking part

might be dislodged.

• If this happens, reconnect

the connector so that the

current direction indicator

faces inside as shown in the

illustration. If the indicator is

faced outside, the current

direction indicator will indi-

cate the opposite direction

to the actual measuring cur-

rent.

Locking part

Clamp sensor connnector

Current direction indicator

MEMO

Introduction

Thank you for purchasing the HIOKI Model 9667 Flexible Clamp On

Sensor.

To obtain maximum performance from the product, please read this

manual first, and keep it handy for future reference.

The 9667 Flexible Clamp On Sensor measures large currents of up to

5000 A AC.

The hollow core coil makes the sensor unit highly flexible, allowing it to

be used for clamping in narrow spaces with crowded wiring. This is a

feature not seen in sensors that use conventional cores.

Initial Inspection

When you receive the product, inspect it carefully to ensure that no

damage occurred during shipping. If damage is evident, or if it fails to

operate according to the specifications, contact your dealer or Hioki

representative.

Preliminary Checks

• Before using the product the first time, verify that it operates nor-

mally to ensure that the no damage occurred during storage or ship-

ping. If you find any damage, contact your dealer or Hioki

representative.

• Before using the product, make sure that the insulation on the

cables is undamaged and that no bare conductors are improperly

exposed. Using the product in such conditions could cause an elec-

tric shock, so contact your dealer or Hioki representative for repair.

Maintenance and Service

• To clean the product, wipe it gently with a soft cloth moistened with

water or mild detergent. Never use solvents such as benzene, alco-

hol, acetone, ether, ketones, thinners or gasoline, as they can

deform and discolor the case.

• If the product seems to be malfunctioning, contanct your dealer or

Hioki representative.

（Accuracy guaranteed for one year at 23±5°C (73±9°F), 80%RH or less)

f.s. : maximum display value or scale length (This is usually the maximum value of the

currently selected range.)

rdg.: reading value (The value currently being measured and indicated on the measuring

product)

Follow these precautions to ensure safe operation and to obtain the

full benefits of the various functions.

Measurement categories

This product complies with CATIII (1000 V) safety requirements.

To ensure safe operation of measurement products, IEC 61010 estab-

lishes safety standards for various electrical environments, catego-

rized as CAT II to CAT IV, and called measurement categories.

CAT II: Primary electrical circuits in equipment connected to an AC

electrical outlet by a power cord (portable tools, household appli-

ances, etc.) CAT II covers directly measuring electrical outlet recepta-

cles.

CAT III: Primary electrical circuits of heavy equipment (fixed installa-

tions) connected directly to the distribution panel, and feeders from the

distribution panel to outlets.

CAT IV: The circuit from the service drop to the service entrance, and

to the power meter and primary overcurrent protection device (distri-

bution panel).

Using a measurement product in an environment designated with a

higher-numbered category than that for which the product is rated

could result in a severe accident, and must be carefully avoided.

Use of a measurement instrument that is not CAT-rated in CAT II to

CAT IV measurement applications could result in a severe accident,

and must be carefully avoided.

Safety Symbol

The following symbols in this manual indicate the relative importance

of cautions and warnings.

Indicates that incorrect operation presents an extreme haz-

ard that could result in serious injury or death to the user.

Indicates that incorrect operation presents a significant haz-

ard that could result in serious injury or death to the user.

Indicates that incorrect operation presents a possibility of

injury to the user or damage to the product

Advisory items related to performance or correct operation of

the product.

This manual contains information and warnings essential for safe

operation of the product and for maintaining it in safe operating condi-

tion. Before using the product, be sure to carefully read the following

safety notes.

Accurate measurement may be impossible in the presence of strong

magnetic fields, such as near transformers and high-current conduc-

tors, or in the presence of strong electromagnetic fields such as near

radio transmitters.

Overview

Inspection and Maintenance

The Declaration of Confor that comply to CE

mark requirements may be the HIOKI website.

9667

FLEXIBLE

CLAMP ON SENSOR

Instruction Manual

October 2012 Revised edition 8

Printed in Japan

9667A981-08 12-10H

Specifications

Rated primary current 5000 to 500 A AC/ 500 to 50 A AC

Output voltage 500 mVAC f.s.

Amplitude accuracy

2% rdg.±1.5 mV

(at 45 Hz to 66 Hz, at sensor center)

Frequency band 10 Hz to 20 kHz (amplitude error: within ±3dB)

Phase accuracy Within ±1

(at 45 Hz to 66 Hz)

Temperature characteristic

2% rdg./°

Effect of conductor

position Within ±3% (deviation from center)

Effect of external electro-

magnetic field 5 A equivalent,7.5 A max. (in an external electro-

magnetic field of 400 A/m

Maximum input current 10,000 A continuous (at 45 to 66 Hz)

Dielectric strength 6880 Vrms for 15 seconds (between circuit and sen-

sor, at 50/60 Hz)

Maximum rated voltage to

earth 1000 VACrms or less

Operating temperature

&humidity 0 to 40

°C (32 to 104°F)

, 80%RH or less (non-con-

densating)

Temperature of conductor

to be measured 50

°C or less (122°F or less)

Storage temperature

&humidity -10 to 50

°C (14 to 122°F)

, 80%RH or less (non-con-

densating)

Operating environment Indoors, altitude up to 2000 m (6562-ft.)

Applicable Standards

(Safety) EN61010

Measurement Category III, Pollution

Degree 2

(Anticipated Transient Overvoltage: 8000 V

(EMC)

EN61326

EN61000-3-2

EN61000-3-3

Power supply LR03 alkaline battery x 4 (1.5 VDC x 4) or

9445-02/03 AC ADAPTER (9 VDC) (option)

(Voltage fluctuations of ±10% from the rated supply

voltage are taken into account.)

Maximum rated power

35 mVA (using batteries), 50 mVA (using AC adapter)

Battery life Approx. 7.5 days (continuous)

Output impedance 100

or less

Measurable conductor

diameter φ254 mm or less

Cable length Approx. 2 m (78.74”) (between sensor and circuit),

approx. 1m (39.37”) (output cord)

Dimensions Approx. 910 mm (35.83”)(when sensor unit is open)

Approx. 57.5W x 86.5Hx 30D mm (2.26”W x 3.41”H

x 1.18”D) (Circuit box)

Mass Approx. 450 g (15.9 oz.) (including batteries)

Accessories Instruction Manual, LR03 alkaline battery x 4

Options 9445-02 AC Adapter

9445-03 AC Adapter

Safety

This product is designed to conform to IEC 61010 Safety Stan-

dards, and has been thoroughly tested for safety prior to ship-

ment. However, mishandling during use could result in injury or

death, as well as damage to the product. Using the instrument/

device/ product in a way not described in this manual may

negate the provided safety features.

Be certain that you understand the instructions and precau-

tions in the manual before use. We disclaim any responsibility

for accidents or injuries not resulting directly from product

defects.

In the manual, the symbol indicates particularly impor-

tant information that the user should read before using the

product.

The symbol printed on the product indicates that the

user should refer to a corresponding topic in the manual

(marked with the symbol) before using the relevant

function.

Indicates a double-insulated device.

Indicates AC (Alternating Current).

Indicates DC (Direct Current).

Wear appropriate protective insulation (insulating rubber

gloves and boots, helmet and etc.) when connecting and

disconnecting from live electric circuits.

Usage Notes

• To avoid short circuits and potentially life-threatening

hazards, never attach the product to a circuit that

operates at more than the 1000 V AC, or over bare

conductors.

• This product should only be connected to the sec-

ondary side of a breaker, so the breaker can prevent

an accident if a short circuit occurs. Connections

should never be made to the primary side of a

breaker, because unrestricted current flow could

cause a serious accident if a short circuit occurs.

• To avoid electric shock, do not allow the product to get wet,

and do not use it when your hands are wet.

• To avoid electric shock when measuring live lines, wear

appropriate protective gear, such as insulated rubber gloves,

boots and a safety helmet.

• To avoid electric shock, stop using this product if it shows

either of the following signs of damage, and do not use the

product again until it has been repaired.

1.The blue sensor cover is damaged, and any red part is visi-

ble beneath the cover.

2.The yellow connector cover is damaged, and any black part

is visible beneath the cover.

• Do not store or use the product where it could be exposed to direct

sunlight, high temperature or humidity, or condensation. Under

such conditions, the product may be damaged and insulation may

deteriorate so that it no longer meets specifications.

• This product is not designed to be entirely water- or dust-proof. To

avoid damage, do not use it in a wet or dusty environment.

• Be careful to avoid dropping the product or otherwise subjecting

them to mechanical shock, which coulddamage the mating surfac-

es of the core and adversely affect measurement.

• Keep the clamp sensor connnector free from foreign objects, which

could interfere with clamping action.

• Avoid stepping on or pinching the cable, which could damage the

cable insulation.

• To avoid damaging the cables, do not bend or pull the cables.

• Note that the product may be damaged if current exceeding the se-

lected measurement range is applied for a long time.

Introduction

Thank you for purchasing the HIOKI Model 9667 Flexible Clamp On

Sensor.

To obtain maximum performance from the product, please read this

manual first, and keep it handy for future reference.

The 9667 Flexible Clamp On Sensor measures large currents of up to

5000 A AC.

The hollow core coil makes the sensor unit highly flexible, allowing it to

be used for clamping in narrow spaces with crowded wiring. This is a

feature not seen in sensors that use conventional cores.

Initial Inspection

When you receive the product, inspect it carefully to ensure that no

damage occurred during shipping. If damage is evident, or if it fails to

operate according to the specifications, contact your dealer or Hioki

representative.

Preliminary Checks

• Before using the product the first time, verify that it operates nor-

mally to ensure that the no damage occurred during storage or ship-

ping. If you find any damage, contact your dealer or Hioki

representative.

• Before using the product, make sure that the insulation on the

cables is undamaged and that no bare conductors are improperly

exposed. Using the product in such conditions could cause an elec-

tric shock, so contact your dealer or Hioki representative for repair.

Maintenance and Service

• To clean the product, wipe it gently with a soft cloth moistened with

water or mild detergent. Never use solvents such as benzene, alco-

hol, acetone, ether, ketones, thinners or gasoline, as they can

deform and discolor the case.

• If the product seems to be malfunctioning, contanct your dealer or

Hioki representative.

（Accuracy guaranteed for one year at 23±5°C (73±9°F), 80%RH or less)

f.s. : maximum display value or scale length (This is usually the maximum value of the

currently selected range.)

rdg.: reading value (The value currently being measured and indicated on the measuring

product)

Follow these precautions to ensure safe operation and to obtain the

full benefits of the various functions.

Measurement categories

This product complies with CATIII (1000 V) safety requirements.

To ensure safe operation of measurement products, IEC 61010 estab-

lishes safety standards for various electrical environments, catego-

rized as CAT II to CAT IV, and called measurement categories.

CAT II: Primary electrical circuits in equipment connected to an AC

electrical outlet by a power cord (portable tools, household appli-

ances, etc.) CAT II covers directly measuring electrical outlet recepta-

cles.

CAT III: Primary electrical circuits of heavy equipment (fixed installa-

tions) connected directly to the distribution panel, and feeders from the

distribution panel to outlets.

CAT IV: The circuit from the service drop to the service entrance, and

to the power meter and primary overcurrent protection device (distri-

bution panel).

Using a measurement product in an environment designated with a

higher-numbered category than that for which the product is rated

could result in a severe accident, and must be carefully avoided.

Use of a measurement instrument that is not CAT-rated in CAT II to

CAT IV measurement applications could result in a severe accident,

and must be carefully avoided.

Safety Symbol

The following symbols in this manual indicate the relative importance

of cautions and warnings.

Indicates that incorrect operation presents an extreme haz-

ard that could result in serious injury or death to the user.

Indicates that incorrect operation presents a significant haz-

ard that could result in serious injury or death to the user.

Indicates that incorrect operation presents a possibility of

injury to the user or damage to the product

Advisory items related to performance or correct operation of

the product.

This manual contains information and warnings essential for safe

operation of the product and for maintaining it in safe operating condi-

tion. Before using the product, be sure to carefully read the following

safety notes.

Accurate measurement may be impossible in the presence of strong

magnetic fields, such as near transformers and high-current conduc-

tors, or in the presence of strong electromagnetic fields such as near

radio transmitters.

Overview

Inspection and Maintenance

The Declaration of Confor that comply to CE

mark requirements may be the HIOKI website.

9667

FLEXIBLE

CLAMP ON SENSOR

Instruction Manual

October 2012 Revised edition 8

Printed in Japan

9667A981-08 12-10H

Specifications

Rated primary current 5000 to 500 A AC/ 500 to 50 A AC

Output voltage 500 mVAC f.s.

Amplitude accuracy

2% rdg.±1.5 mV

(at 45 Hz to 66 Hz, at sensor center)

Frequency band 10 Hz to 20 kHz (amplitude error: within ±3dB)

Phase accuracy Within ±1

(at 45 Hz to 66 Hz)

Temperature characteristic

2% rdg./°

Effect of conductor

position Within ±3% (deviation from center)

Effect of external electro-

magnetic field 5 A equivalent,7.5 A max. (in an external electro-

magnetic field of 400 A/m

Maximum input current 10,000 A continuous (at 45 to 66 Hz)

Dielectric strength 6880 Vrms for 15 seconds (between circuit and sen-

sor, at 50/60 Hz)

Maximum rated voltage to

earth 1000 VACrms or less

Operating temperature

&humidity 0 to 40

°C (32 to 104°F)

, 80%RH or less (non-con-

densating)

Temperature of conductor

to be measured 50

°C or less (122°F or less)

Storage temperature

&humidity -10 to 50

°C (14 to 122°F)

, 80%RH or less (non-con-

densating)

Operating environment Indoors, altitude up to 2000 m (6562-ft.)

Applicable Standards

(Safety) EN61010

Measurement Category III, Pollution

Degree 2

(Anticipated Transient Overvoltage: 8000 V

(EMC)

EN61326

EN61000-3-2

EN61000-3-3

Power supply LR03 alkaline battery x 4 (1.5 VDC x 4) or

9445-02/03 AC ADAPTER (9 VDC) (option)

(Voltage fluctuations of ±10% from the rated supply

voltage are taken into account.)

Maximum rated power

35 mVA (using batteries), 50 mVA (using AC adapter)

Battery life Approx. 7.5 days (continuous)

Output impedance 100

or less

Measurable conductor

diameter φ254 mm or less

Cable length Approx. 2 m (78.74”) (between sensor and circuit),

approx. 1m (39.37”) (output cord)

Dimensions Approx. 910 mm (35.83”)(when sensor unit is open)

Approx. 57.5W x 86.5H x 30D mm (2.26”W x 3.41”H

x 1.18”D) (Circuit box)

Mass Approx. 450 g (15.9 oz.) (including batteries)

Accessories Instruction Manual, LR03 alkaline battery x 4

Options 9445-02 AC Adapter

9445-03 AC Adapter

Safety

This product is designed to conform to IEC 61010 Safety Stan-

dards, and has been thoroughly tested for safety prior to ship-

ment. However, mishandling during use could result in injury or

death, as well as damage to the product. Using the instrument/

device/ product in a way not described in this manual may

negate the provided safety features.

Be certain that you understand the instructions and precau-

tions in the manual before use. We disclaim any responsibility

for accidents or injuries not resulting directly from product

defects.

In the manual, the symbol indicates particularly impor-

tant information that the user should read before using the

product.

The symbol printed on the product indicates that the

user should refer to a corresponding topic in the manual

(marked with the symbol) before using the relevant

function.

Indicates a double-insulated device.

Indicates AC (Alternating Current).

Indicates DC (Direct Current).

Wear appropriate protective insulation (insulating rubber

gloves and boots, helmet and etc.) when connecting and

disconnecting from live electric circuits.

Usage Notes

• To avoid short circuits and potentially life-threatening

hazards, never attach the product to a circuit that

operates at more than the 1000 V AC, or over bare

conductors.

• This product should only be connected to the sec-

ondary side of a breaker, so the breaker can prevent

an accident if a short circuit occurs. Connections

should never be made to the primary side of a

breaker, because unrestricted current flow could

cause a serious accident if a short circuit occurs.

• To avoid electric shock, do not allow the product to get wet,

and do not use it when your hands are wet.

• To avoid electric shock when measuring live lines, wear

appropriate protective gear, such as insulated rubber gloves,

boots and a safety helmet.

• To avoid electric shock, stop using this product if it shows

either of the following signs of damage, and do not use the

product again until it has been repaired.

1.The blue sensor cover is damaged, and any red part is visi-

ble beneath the cover.

2.The yellow connector cover is damaged, and any black part

is visible beneath the cover.

• Do not store or use the product where it could be exposed to direct

sunlight, high temperature or humidity, or condensation. Under

such conditions, the product may be damaged and insulation may

deteriorate so that it no longer meets specifications.

• This product is not designed to be entirely water- or dust-proof. To

avoid damage, do not use it in a wet or dusty environment.

• Be careful to avoid dropping the product or otherwise subjecting

them to mechanical shock, which could damage the mating surfac-

es of the core and adversely affect measurement.

• Keep the clamp sensor connnectorfree from foreign objects, which

could interfere with clamping action.

• Avoid stepping on or pinching the cable, which could damage the

cable insulation.

• To avoid damaging the cables, do not bend or pull the cables.

• Note that the product may be damaged if current exceeding the se-

lected measurement range is applied for a long time.

Introduction

Thank you for purchasing the HIOKI Model 9667 Flexible Clamp On

Sensor.

To obtain maximum performance from the product, please read this

manual first, and keep it handy for future reference.

The 9667 Flexible Clamp On Sensor measures large currents of up to

5000 A AC.

The hollow core coil makes the sensor unit highly flexible, allowing it to

be used for clamping in narrow spaces with crowded wiring. This is a

feature not seen in sensors that use conventional cores.

Initial Inspection

When you receive the product, inspect it carefully to ensure that no

damage occurred during shipping. If damage is evident, or if it fails to

operate according to the specifications, contact your dealer or Hioki

representative.

Preliminary Checks

• Before using the product the first time, verify that it operates nor-

mally to ensure that the no damage occurred during storage or ship-

ping. If you find any damage, contact your dealer or Hioki

representative.

• Before using the product, make sure that the insulation on the

cables is undamaged and that no bare conductors are improperly

exposed. Using the product in such conditions could cause an elec-

tric shock, so contact your dealer or Hioki representative for repair.

Maintenance and Service

• To clean the product, wipe it gently with a soft cloth moistened with

water or mild detergent. Never use solvents such as benzene, alco-

hol, acetone, ether, ketones, thinners or gasoline, as they can

deform and discolor the case.

• If the product seems to be malfunctioning, contanct your dealer or

Hioki representative.

（Accuracy guaranteed for one year at 23±5°C (73±9°F), 80%RH or less)

f.s. : maximum display value or scale length (This is usually the maximum value of the

currently selected range.)

rdg.: reading value (The value currently being measured and indicated on the measuring

product)

Follow these precautions to ensure safe operation and to obtain the

full benefits of the various functions.

Measurement categories

This product complies with CATIII (1000 V) safety requirements.

To ensure safe operation of measurement products, IEC 61010 estab-

lishes safety standards for various electrical environments, catego-

rized as CAT II to CAT IV, and called measurement categories.

CAT II: Primary electrical circuits in equipment connected to an AC

electrical outlet by a power cord (portable tools, household appli-

ances, etc.) CAT II covers directly measuring electrical outlet recepta-

cles.

CAT III: Primary electrical circuits of heavy equipment (fixed installa-

tions) connected directly to the distribution panel, and feeders from the

distribution panel to outlets.

CAT IV: The circuit from the service drop to the service entrance, and

to the power meter and primary overcurrent protection device (distri-

bution panel).

Using a measurement product in an environment designated with a

higher-numbered category than that for which the product is rated

could result in a severe accident, and must be carefully avoided.

Use of a measurement instrument that is not CAT-rated in CAT II to

CAT IV measurement applications could result in a severe accident,

and must be carefully avoided.

Safety Symbol

The following symbols in this manual indicate the relative importance

of cautions and warnings.

Indicates that incorrect operation presents an extreme haz-

ard that could result in serious injury or death to the user.

Indicates that incorrect operation presents a significant haz-

ard that could result in serious injury or death to the user.

Indicates that incorrect operation presents a possibility of

injury to the user or damage to the product

Advisory items related to performance or correct operation of

the product.

This manual contains information and warnings essential for safe

operation of the product and for maintaining it in safe operating condi-

tion. Before using the product, be sure to carefully read the following

safety notes.

Accurate measurement may be impossible in the presence of strong

magnetic fields, such as near transformers and high-current conduc-

tors, or in the presence of strong electromagnetic fields such as near

radio transmitters.

Overview

Inspection and Maintenance

The Declaration of Confor that comply to CE

mark requirements may be the HIOKI website.

9667

FLEXIBLE

CLAMP ON SENSOR

Instruction Manual

October 2012 Revised edition 8

Printed in Japan

9667A981-08 12-10H

Specifications

Rated primary current 5000 to 500 A AC/ 500 to 50 A AC

Output voltage 500 mVAC f.s.

Amplitude accuracy

2% rdg.±1.5 mV

(at 45 Hz to 66 Hz, at sensor center)

Frequency band 10 Hz to 20 kHz (amplitude error: within ±3dB)

Phase accuracy Within ±1

(at 45 Hz to 66 Hz)

Temperature characteristic

2% rdg./°

Effect of conductor

position Within ±3% (deviation from center)

Effect of external electro-

magnetic field 5 A equivalent,7.5 A max. (in an external electro-

magnetic field of 400 A/m

Maximum input current 10,000 A continuous (at 45 to 66 Hz)

Dielectric strength 6880 Vrms for 15 seconds (between circuit and sen-

sor, at 50/60 Hz)

Maximum rated voltage to

earth 1000 VACrms or less

Operating temperature

&humidity 0 to 40

°C (32 to 104°F)

, 80%RH or less (non-con-

densating)

Temperature of conductor

to be measured 50

°C or less (122°F or less)

Storage temperature

&humidity -10 to 50

°C (14 to 122°F)

, 80%RH or less (non-con-

densating)

Operating environment Indoors, altitude up to 2000 m (6562-ft.)

Applicable Standards

(Safety) EN61010

Measurement Category III, Pollution

Degree 2

(Anticipated Transient Overvoltage: 8000 V

(EMC)

EN61326

EN61000-3-2

EN61000-3-3

Power supply LR03 alkaline battery x 4 (1.5 VDC x 4) or

9445-02/03 AC ADAPTER (9 VDC) (option)

(Voltage fluctuations of ±10% from the rated supply

voltage are taken into account.)

Maximum rated power

35 mVA (using batteries), 50 mVA (using AC adapter)

Battery life Approx. 7.5 days (continuous)

Output impedance 100

or less

Measurable conductor

diameter φ254 mm or less

Cable length Approx. 2 m (78.74”) (between sensor and circuit),

approx. 1m (39.37”) (output cord)

Dimensions Approx. 910 mm (35.83”)(when sensor unit is open)

Approx. 57.5W x 86.5H x 30D mm (2.26”W x 3.41”H

x 1.18”D) (Circuit box)

Mass Approx. 450 g (15.9 oz.) (including batteries)

Accessories Instruction Manual, LR03 alkaline battery x 4

Options 9445-02 AC Adapter

9445-03 AC Adapter

Safety

This product is designed to conform to IEC 61010 Safety Stan-

dards, and has been thoroughly tested for safety prior to ship-

ment. However, mishandling during use could result in injury or

death, as well as damage to the product. Using the instrument/

device/ product in a way not described in this manual may

negate the provided safety features.

Be certain that you understand the instructions and precau-

tions in the manual before use. We disclaim any responsibility

for accidents or injuries not resulting directly from product

defects.

In the manual, the symbol indicates particularly impor-

tant information that the user should read before using the

product.

The symbol printed on the product indicates that the

user should refer to a corresponding topic in the manual

(marked with the symbol) before using the relevant

function.

Indicates a double-insulated device.

Indicates AC (Alternating Current).

Indicates DC (Direct Current).

Wear appropriate protective insulation (insulating rubber

gloves and boots, helmet and etc.) when connecting and

disconnecting from live electric circuits.

Usage Notes

• To avoid short circuits and potentially life-threatening

hazards, never attach the product to a circuit that

operates at more than the 1000 V AC, or over bare

conductors.

• This product should only be connected to the sec-

ondary side of a breaker, so the breaker can prevent

an accident if a short circuit occurs. Connections

should never be made to the primary side of a

breaker, because unrestricted current flow could

cause a serious accident if a short circuit occurs.

• To avoid electric shock, do not allow the product to get wet,

and do not use it when your hands are wet.

• To avoid electric shock when measuring live lines, wear

appropriate protective gear, such as insulated rubber gloves,

boots and a safety helmet.

• To avoid electric shock, stop using this product if it shows

either of the following signs of damage, and do not use the

product again until it has been repaired.

1.The blue sensor cover is damaged, and any red part is visi-

ble beneath the cover.

2.The yellow connector cover is damaged, and any black part

is visible beneath the cover.

• Do not store or use the product where it could be exposed to direct

sunlight, high temperature or humidity, or condensation. Under

such conditions, the product may be damaged and insulation may

deteriorate so that it no longer meets specifications.

• This product is not designed to be entirely water- or dust-proof. To

avoid damage, do not use it in a wet or dusty environment.

• Be careful to avoid dropping the product or otherwise subjecting

them to mechanical shock, which could damage the mating surfac-

es of the core and adversely affect measurement.

• Keep the clamp sensor connnector free from foreign objects, which

could interfere with clamping action.

• Avoid stepping on or pinching the cable, which could damage the

cable insulation.

• To avoid damaging the cables, do not bend or pull the cables.

• Note that the product may be damaged if current exceeding the se-

lected measurement range is applied for a long time.

Introduction

Thank you for purchasing the HIOKI Model 9667 Flexible Clamp On

Sensor.

To obtain maximum performance from the product, please read this

manual first, and keep it handy for future reference.

The 9667 Flexible Clamp On Sensor measures large currents of up to

5000 A AC.

The hollow core coil makes the sensor unit highly flexible, allowing it to

be used for clamping in narrow spaces with crowded wiring. This is a

feature not seen in sensors that use conventional cores.

Initial Inspection

When you receive the product, inspect it carefully to ensure that no

damage occurred during shipping. If damage is evident, or if it fails to

operate according to the specifications, contact your dealer or Hioki

representative.

Preliminary Checks

• Before using the product the first time, verify that it operates nor-

mally to ensure that the no damage occurred during storage or ship-

ping. If you find any damage, contact your dealer or Hioki

representative.

• Before using the product, make sure that the insulation on the

cables is undamaged and that no bare conductors are improperly

exposed. Using the product in such conditions could cause an elec-

tric shock, so contact your dealer or Hioki representative for repair.

Maintenance and Service

• To clean the product, wipe it gently with a soft cloth moistened with

water or mild detergent. Never use solvents such as benzene, alco-

hol, acetone, ether, ketones, thinners or gasoline, as they can

deform and discolor the case.

• If the product seems to be malfunctioning, contanct your dealer or

Hioki representative.

（Accuracy guaranteed for one year at 23±5°C (73±9°F), 80%RH or less)

f.s. : maximum display value or scale length (This is usually the maximum value of the

currently selected range.)

rdg.: reading value (The value currently being measured and indicated on the measuring

product)

Follow these precautions to ensure safe operation and to obtain the

full benefits of the various functions.

Measurement categories

This product complies with CATIII (1000 V) safety requirements.

To ensure safe operation of measurement products, IEC 61010 estab-

lishes safety standards for various electrical environments, catego-

rized as CAT II to CAT IV, and called measurement categories.

CAT II: Primary electrical circuits in equipment connected to an AC

electrical outlet by a power cord (portable tools, household appli-

ances, etc.) CAT II covers directly measuring electrical outlet recepta-

cles.

CAT III: Primary electrical circuits of heavy equipment (fixed installa-

tions) connected directly to the distribution panel, and feeders from the

distribution panel to outlets.

CAT IV: The circuit from the service drop to the service entrance, and

to the power meter and primary overcurrent protection device (distri-

bution panel).

Using a measurement product in an environment designated with a

higher-numbered category than that for which the product is rated

could result in a severe accident, and must be carefully avoided.

Use of a measurement instrument that is not CAT-rated in CAT II to

CAT IV measurement applications could result in a severe accident,

and must be carefully avoided.

Safety Symbol

The following symbols in this manual indicate the relative importance

of cautions and warnings.

Indicates that incorrect operation presents an extreme haz-

ard that could result in serious injury or death to the user.

Indicates that incorrect operation presents a significant haz-

ard that could result in serious injury or death to the user.

Indicates that incorrect operation presents a possibility of

injury to the user or damage to the product

Advisory items related to performance or correct operation of

the product.

This manual contains information and warnings essential for safe

operation of the product and for maintaining it in safe operating condi-

tion. Before using the product, be sure to carefully read the following

safety notes.

Accurate measurement may be impossible in the presence of strong

magnetic fields, such as near transformers and high-current conduc-

tors, or in the presence of strong electromagnetic fields such as near

radio transmitters.

Overview

Inspection and Maintenance

The Declaration of Confor that comply to CE

mark requirements may be the HIOKI website.

9667

FLEXIBLE

CLAMP ON SENSOR

Instruction Manual

October 2012 Revised edition 8

Printed in Japan

9667A981-08 12-10H

Specifications

Rated primary current 5000 to 500 A AC/ 500 to 50 A AC

Output voltage 500 mVAC f.s.

Amplitude accuracy

2% rdg.±1.5 mV

(at 45 Hz to 66 Hz, at sensor center)

Frequency band 10 Hz to 20 kHz (amplitude error: within ±3dB)

Phase accuracy Within ±1

(at 45 Hz to 66 Hz)

Temperature characteristic

2% rdg./°

Effect of conductor

position Within ±3% (deviation from center)

Effect of external electro-

magnetic field 5 A equivalent,7.5 A max. (in an external electro-

magnetic field of 400 A/m

Maximum input current 10,000 A continuous (at 45 to 66 Hz)

Dielectric strength 6880 Vrms for 15 seconds (between circuit and sen-

sor, at 50/60 Hz)

Maximum rated voltage to

earth 1000 VACrms or less

Operating temperature

&humidity 0 to 40

°C (32 to 104°F)

, 80%RH or less (non-con-

densating)

Temperature of conductor

to be measured 50

°C or less (122°F or less)

Storage temperature

&humidity -10 to 50

°C (14 to 122°F)

, 80%RH or less (non-con-

densating)

Operating environment Indoors, altitude up to 2000 m (6562-ft.)

Applicable Standards

(Safety) EN61010

Measurement Category III, Pollution

Degree 2

(Anticipated Transient Overvoltage: 8000 V

(EMC)

EN61326

EN61000-3-2

EN61000-3-3

Power supply LR03 alkaline battery x 4 (1.5 VDC x 4) or

9445-02/03 AC ADAPTER (9 VDC) (option)

(Voltage fluctuations of ±10% from the rated supply

voltage are taken into account.)

Maximum rated power

35 mVA (using batteries), 50 mVA (using AC adapter)

Battery life Approx. 7.5 days (continuous)

Output impedance 100

or less

Measurable conductor

diameter φ254 mm or less

Cable length Approx. 2 m (78.74”) (between sensor and circuit),

approx. 1m (39.37”) (output cord)

Dimensions Approx. 910 mm (35.83”)(when sensor unit is open)

Approx. 57.5W x 86.5Hx 30D mm (2.26”W x 3.41”H

x 1.18”D) (Circuit box)

Mass Approx. 450 g (15.9 oz.) (including batteries)

Accessories Instruction Manual, LR03 alkaline battery x 4

Options 9445-02 AC Adapter

9445-03 AC Adapter

Safety

This product is designed to conform to IEC 61010 Safety Stan-

dards, and has been thoroughly tested for safety prior to ship-

ment. However, mishandling during use could result in injury or

death, as well as damage to the product. Using the instrument/

device/ product in a way not described in this manual may

negate the provided safety features.

Be certain that you understand the instructions and precau-

tions in the manual before use. We disclaim any responsibility

for accidents or injuries not resulting directly from product

defects.

In the manual, the symbol indicates particularly impor-

tant information that the user should read before using the

product.

The symbol printed on the product indicates that the

user should refer to a corresponding topic in the manual

(marked with the symbol) before using the relevant

function.

Indicates a double-insulated device.

Indicates AC (Alternating Current).

Indicates DC (Direct Current).

Wear appropriate protective insulation (insulating rubber

gloves and boots, helmet and etc.) when connecting and

disconnecting from live electric circuits.

Usage Notes

• To avoid short circuits and potentially life-threatening

hazards, never attach the product to a circuit that

operates at more than the 1000 V AC, or over bare

conductors.

• This product should only be connected to the sec-

ondary side of a breaker, so the breaker can prevent

an accident if a short circuit occurs. Connections

should never be made to the primary side of a

breaker, because unrestricted current flow could

cause a serious accident if a short circuit occurs.

• To avoid electric shock, do not allow the product to get wet,

and do not use it when your hands are wet.

• To avoid electric shock when measuring live lines, wear

appropriate protective gear, such as insulated rubber gloves,

boots and a safety helmet.

• To avoid electric shock, stop using this product if it shows

either of the following signs of damage, and do not use the

product again until it has been repaired.

1.The blue sensor cover is damaged, and any red part is visi-

ble beneath the cover.

2.The yellow connector cover is damaged, and any black part

is visible beneath the cover.

• Do not store or use the product where it could be exposed to direct

sunlight, high temperature or humidity, or condensation. Under

such conditions, the product may be damaged and insulation may

deteriorate so that it no longer meets specifications.

• This product is not designed to be entirely water- or dust-proof. To

avoid damage, do not use it in a wet or dusty environment.

• Be careful to avoid dropping the product or otherwise subjecting

them to mechanical shock,which coulddamage the mating surfac-

es of the core and adversely affect measurement.

• Keep the clamp sensor connnector free from foreign objects, which

could interfere with clamping action.

• Avoid stepping on or pinching the cable, which could damage the

cable insulation.

• To avoid damaging the cables, do not bend or pull the cables.

• Note that the product may be damaged if current exceeding the se-

lected measurement range is applied for a long time.

Introduction

Thank you for purchasing the HIOKI Model 9667 Flexible Clamp On

Sensor.

To obtain maximum performance from the product, please read this

manual first, and keep it handy for future reference.

The 9667 Flexible Clamp On Sensor measures large currents of up to

5000 A AC.

The hollow core coil makes the sensor unit highly flexible, allowing it to

be used for clamping in narrow spaces with crowded wiring. This is a

feature not seen in sensors that use conventional cores.

Initial Inspection

When you receive the product, inspect it carefully to ensure that no

damage occurred during shipping. If damage is evident, or if it fails to

operate according to the specifications, contact your dealer or Hioki

representative.

Preliminary Checks

• Before using the product the first time, verify that it operates nor-

mally to ensure that the no damage occurred during storage or ship-

ping. If you find any damage, contact your dealer or Hioki

representative.

• Before using the product, make sure that the insulation on the

cables is undamaged and that no bare conductors are improperly

exposed. Using the product in such conditions could cause an elec-

tric shock, so contact your dealer or Hioki representative for repair.

Maintenance and Service

• To clean the product, wipe it gently with a soft cloth moistened with

water or mild detergent. Never use solvents such as benzene, alco-

hol, acetone, ether, ketones, thinners or gasoline, as they can

deform and discolor the case.

• If the product seems to be malfunctioning, contanct your dealer or

Hioki representative.

（Accuracy guaranteed for one year at 23±5°C (73±9°F), 80%RH or less)

f.s. : maximum display value or scale length (This is usually the maximum value of the

currently selected range.)

rdg.: reading value (The value currently being measured and indicated on the measuring

product)

Follow these precautions to ensure safe operation and to obtain the

full benefits of the various functions.

Measurement categories

This product complies with CATIII (1000 V) safety requirements.

To ensure safe operation of measurement products, IEC 61010 estab-

lishes safety standards for various electrical environments, catego-

rized as CAT II to CAT IV, and called measurement categories.

CAT II: Primary electrical circuits in equipment connected to an AC

electrical outlet by a power cord (portable tools, household appli-

ances, etc.) CAT II covers directly measuring electrical outlet recepta-

cles.

CAT III: Primary electrical circuits of heavy equipment (fixed installa-

tions) connected directly to the distribution panel, and feeders from the

distribution panel to outlets.

CAT IV: The circuit from the service drop to the service entrance, and

to the power meter and primary overcurrent protection device (distri-

bution panel).

Using a measurement product in an environment designated with a

higher-numbered category than that for which the product is rated

could result in a severe accident, and must be carefully avoided.

Use of a measurement instrument that is not CAT-rated in CAT II to

CAT IV measurement applications could result in a severe accident,

and must be carefully avoided.

Safety Symbol

The following symbols in this manual indicate the relative importance

of cautions and warnings.

Indicates that incorrect operation presents an extreme haz-

ard that could result in serious injury or death to the user.

Indicates that incorrect operation presents a significant haz-

ard that could result in serious injury or death to the user.

Indicates that incorrect operation presents a possibility of

injury to the user or damage to the product

Advisory items related to performance or correct operation of

the product.

This manual contains information and warnings essential for safe

operation of the product and for maintaining it in safe operating condi-

tion. Before using the product, be sure to carefully read the following

safety notes.

Accurate measurement may be impossible in the presence of strong

magnetic fields, such as near transformers and high-current conduc-

tors, or in the presence of strong electromagnetic fields such as near

radio transmitters.

Overview

Inspection and Maintenance

The Declaration of Confor that comply to CE

mark requirements may be the HIOKI website.

9667

FLEXIBLE

CLAMP ON SENSOR

Instruction Manual

October 2012 Revised edition 8

Printed in Japan

9667A981-08 12-10H

Specifications

Rated primary current 5000 to 500 A AC/ 500 to 50 A AC

Output voltage 500 mVAC f.s.

Amplitude accuracy

2% rdg.±1.5 mV

(at 45 Hz to 66 Hz, at sensor center)

Frequency band 10 Hz to 20 kHz (amplitude error: within ±3dB)

Phase accuracy Within ±1

(at 45 Hz to 66 Hz)

Temperature characteristic

2% rdg./°

Effect of conductor

position Within ±3% (deviation from center)

Effect of external electro-

magnetic field 5 A equivalent,7.5 A max. (in an external electro-

magnetic field of 400 A/m

Maximum input current 10,000 A continuous (at 45 to 66 Hz)

Dielectric strength 6880 Vrms for 15 seconds (between circuit and sen-

sor, at 50/60 Hz)

Maximum rated voltage to

earth 1000 VACrms or less

Operating temperature

&humidity 0 to 40

°C (32 to 104°F)

, 80%RH or less (non-con-

densating)

Temperature of conductor

to be measured 50

°C or less (122°F or less)

Storage temperature

&humidity -10 to 50

°C (14 to 122°F)

, 80%RH or less (non-con-

densating)

Operating environment Indoors, altitude up to 2000 m (6562-ft.)

Applicable Standards

(Safety) EN61010

Measurement Category III, Pollution

Degree 2

(Anticipated Transient Overvoltage: 8000 V

(EMC)

EN61326

EN61000-3-2

EN61000-3-3

Power supply LR03 alkaline battery x 4 (1.5 VDC x 4) or

9445-02/03 AC ADAPTER (9 VDC) (option)

(Voltage fluctuations of ±10% from the rated supply

voltage are taken into account.)

Maximum rated power

35 mVA (using batteries), 50 mVA (using AC adapter)

Battery life Approx. 7.5 days (continuous)

Output impedance 100

or less

Measurable conductor

diameter φ254 mm or less

Cable length Approx. 2 m (78.74”) (between sensor and circuit),

approx. 1m (39.37”) (output cord)

Dimensions Approx. 910 mm (35.83”)(when sensor unit is open)

Approx. 57.5W x 86.5Hx 30D mm (2.26”W x 3.41”H

x 1.18”D) (Circuit box)

Mass Approx. 450 g (15.9 oz.) (including batteries)

Accessories Instruction Manual, LR03 alkaline battery x 4

Options 9445-02 AC Adapter

9445-03 AC Adapter

Safety

This product is designed to conform to IEC 61010 Safety Stan-

dards, and has been thoroughly tested for safety prior to ship-

ment. However, mishandling during use could result in injury or

death, as well as damage to the product. Using the instrument/

device/ product in a way not described in this manual may

negate the provided safety features.

Be certain that you understand the instructions and precau-

tions in the manual before use. We disclaim any responsibility

for accidents or injuries not resulting directly from product

defects.

In the manual, the symbol indicates particularly impor-

tant information that the user should read before using the

product.

The symbol printed on the product indicates that the

user should refer to a corresponding topic in the manual

(marked with the symbol) before using the relevant

function.

Indicates a double-insulated device.

Indicates AC (Alternating Current).

Indicates DC (Direct Current).

Wear appropriate protective insulation (insulating rubber

gloves and boots, helmet and etc.) when connecting and

disconnecting from live electric circuits.

Usage Notes

• To avoid short circuits and potentially life-threatening

hazards, never attach the product to a circuit that

operates at more than the 1000 V AC, or over bare

conductors.

• This product should only be connected to the sec-

ondary side of a breaker, so the breaker can prevent

an accident if a short circuit occurs. Connections

should never be made to the primary side of a

breaker, because unrestricted current flow could

cause a serious accident if a short circuit occurs.

• To avoid electric shock, do not allow the product to get wet,

and do not use it when your hands are wet.

• To avoid electric shock when measuring live lines, wear

appropriate protective gear, such as insulated rubber gloves,

boots and a safety helmet.

• To avoid electric shock, stop using this product if it shows

either of the following signs of damage, and do not use the

product again until it has been repaired.

1.The blue sensor cover is damaged, and any red part is visi-

ble beneath the cover.

2.The yellow connector cover is damaged, and any black part

is visible beneath the cover.

• Do not store or use the product where it could be exposed to direct

sunlight, high temperature or humidity, or condensation. Under

such conditions, the product may be damaged and insulation may

deteriorate so that it no longer meets specifications.

• This product is not designed to be entirely water- or dust-proof. To

avoid damage, do not use it in a wet or dusty environment.

• Be careful to avoid dropping the product or otherwise subjecting

them to mechanical shock, which coulddamage the mating surfac-

es of the core and adversely affect measurement.

• Keep the clamp sensor connnector free from foreign objects, which

could interfere with clamping action.

• Avoid stepping on or pinching the cable, which could damage the

cable insulation.

• To avoid damaging the cables, do not bend or pull the cables.

• Note that the product may be damaged if current exceeding the se-

lected measurement range is applied for a long time.

Table of contents

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