Hioki CT9667-02 User Manual

CT9667-01

k

CT9667-02
CT9667-03

Instruction Manual

June 2015 Edition 1
Printed in Japan
CT9667B981-00 15-06H

AC FLEXIBLE
CURRENT SENSOR

EN

13-09

Introduction

Thank you for purchasing the Hioki CT9667-01, CT9667-02,
CT9667-03 AC Flexible Current Sensor. To obtain maximum

performance from the device, please read this manual rst,

and keep it handy for future reference.

Be sure to also read the separate booklet “Current Sensor
Operating Precautions” before use.

Use Environment of the Device

WARNING

Although part of this device (the exible loop part

only) is designed to resist the ingress of dust
and dripping water, it is not entirely waterproof or
dustproof, so to avoid electric shock or damage, do
not use it in a wet or dusty environment.

Troubleshooting

If the device seems to be malfunctioning, conrm that the

batteries are not discharged before contacting your authorized
Hioki distributor or reseller.

Overview

This device measures large currents of up to 5000 A AC.

The air core coil makes the sensor unit highly exible,

allowing it to be used for clamping in narrow spaces with
crowded wiring.

Specications

General Specications

CT9667-01 CT9667-02 CT9667-03

Operating
environment

Operating temperature and humidity

Temperature
Humidity

(no
condensation)

(When using batteries, AC adapter, or external power supply, depends on

the power supply’s specications.)

Storage
temperature
and humidity

Indoors, pollution degree 2,
altitude up to 2000 m (6562 ft.)

−

25°C to 65°C (−13°F to 149°F)

Less than 40°C (104°F): 80% RH or less
From 40°C to 65°C (104°F to 149°F):

Maximum relative humidity declining
linearly from 80% RH at 40°C (104°F)
to 25% RH at 65°C (149°F)

−30

°C to 70°C (−22°F to 158°F),

80% RH or less
(no condensation)

−

10°C to 50°C

(14°F to 122°F)

From 40°C to
50°C (104°F to
122°F):
Maximum
relative humidity
declining linearly
from 80% RH at
40°C (104°F) to
50% RH at 50°C
(122°F)

−20

°C to 60°C
(−4°F to 140°F),
80% RH or less

Dustproof and
waterproof

Standards
Dielectric

strength

Power supply

Continuous
operating time

Dimensions

(circuit box)

Mass

Cable length

Flexible loop

length

Flexible loop

cross-sectional
diameter

Flexible loop

end cap
diameter

Product
warranty period

Accessories

Options

CT9667-01 CT9667-02 CT9667-03

IP54 (EN60529)
(Flexible loop only)

Safety: EN61010
EMC: EN61326, EN61000-3-2, EN61000-3-3

8.54 kV AC rms for 1 minute (at 50 Hz/ 60 Hz)

(between exible loop and output connector)

• LR6 (AA size) alkaline battery × 2
Rated supply voltage: 1.5 V DC × 2
Maximum rated power: 35 mVA

• 9445-02, 9445-03 (for EU), Z1012 AC adapter (option)
Rated supply voltage: 100 V to 240 V AC

(Voltage uctuations of ±10% from the rated supply

voltage are taken into account.)
Rated supply frequency: 50 Hz/60 Hz
Anticipated transient overvoltage: 2500 V

• External power supply
Rated supply voltage: 5 V to 15 V DC
Maximum rated power: 0.2 VA

When LR6 (AA size) alkaline battery × 2 are used
(at 23

°C

)

Approx. 168 hours (7 days)

Approx. 35W × 120.5H × 34D mm (1.38″W × 4.74″H ×

1.34″D) (excluding protruding parts)

Approx. 280 g (9.9 oz.)
(Flexible loop + circuit box, including batteries)

Approx. 2 m (78.74″) (between exible loop and circuit box)
Approx. 1 m (39.37″) (output cable)

Approx. 390 mm

(15.35″)

Approx.

Approx.

1 year

• LR6 (AA size) alkaline battery × 2

• Instruction Manual

• Current Sensor Operating Precautions

• 9445-02 AC Adapter

• 9445-03 AC Adapter (for EU)

• Z1012 AC Adapter (Operating temperature:

• 9704 Conversion Adapter

7.4 mm (0.29″)

φ

9.9 mm (0.39″)

φ

70°C [−40°F to 158°F])
(BNC female to banana male)

Approx. 630 mm

(24.80″)

–

Approx. 470
(

16.6

Approx. 930 mm

(36.61″)

Approx. φ13 mm

(0.51″)

Approx. φ20 mm

(0.79″)

oz.)

−40

g

°C to

Input Specications, Output Specications, and
Measurement Specications

(1) Basic specications

CT9667-01 CT9667-02 CT9667-03

Output
connector

Rated
measurement
current

Output rate 1 mV/A (500 A range)

Maximum

measurement
current

Frequency

band

Output
impedance

Measurable

conductor
diameter

Maximum rated

voltage to earth

Frequency derating (continuous, design values)

測定電流 [A]

Measurement current [A]

(2) Accuracy specications

f.s. (range): The currently selected range.
rdg. (reading or displayed value): The value currently being

Conditions of
guaranteed
accuracy

Measurement accuracy

Amplitude
accuracy

Phase
accuracy

Temperature

coefcient

Effect of
conductor
position

Effect of

external
magnetic eld

Offset voltage ±1 mV or less

BNC

500 A AC (500 A range)
5000 A AC (5000 A range)

0.1 mV/A (5000 A range)
RMS value, continuous:

see "Frequency derating" below.
Peak value:

under the RMS value conditions described above.

1500 A peak (500 A range)
15000 A peak (5000 A range)

10 Hz to 20 kHz (within ±3 dB)

50

(±5%)

Ω

100 mm (3.94″)

φ

or less
1000 V AC (Measurement category III)

600 V AC (Measurement category IV)
(Anticipated Transient Overvoltage: 8000 V)

15,0 00

10,0 00

5,00 0

0

10 100 100 0 100 00 100 000

180 mm (7.09″)

φ

or less

1 k 10 k 100

Frequency [Hz]

周波数 [Hz]

measured and indicated on the
measuring instrument.

CT9667-01 CT9667-02 CT9667-03

Guaranteed accuracy period: 1 year
Guaranteed accuracy period

after adjustment made by Hioki:
Opening and closing of the

exible loop:
Accuracy guarantee for

temperature and humidity:
(With no exible loop stretching, damage, or

cross-sectional deformation in shape)

±2% rdg. ±0.3% f.s.
(at 45 Hz to 66 Hz, at exible loop center)

Within ±1.0° (at 45 Hz to 66 Hz)

In the operating temperature range, add 0.05 × specied

accuracy/°C (at temperatures other than 23°C ±5°C).

Within ±3% (deviation from center)

1.5% f.s. or less. (400 A/m, 50 Hz/ 60 Hz)

1 year

10000 times or less

23°C±5°C (73°F±9°F),

80% RH or less

254 mm (10.00″)

φ

or less

1 2 3 4

Parts Names

LOCK

UNLOCK

LOCK

UNLOCK

LOCK

LOCK

Example: CT9667-01

Cable

Connected

instrument

Flexible loop

BNC
connector

Circuit box
(Battery cover [on back])

Output cable

LED indicator

Lights up

(Green)

POWER

LED

OVER

LED

* When using battery power.

Power on. Battery life is low.*

‒

Coupling

Lights up

(Red)

Range exceeded
(peak value of at least
3 × range).

OVER LED
POWER LED

Switch

AC adapter
connection
terminal

Turns off

There is no battery
life remaining*, or
power off.

Normal measure-

or power off.

ment

,

Measurement Methods

Inspection Before Use

Verify that the device operates normally to ensure that no

damage occurred during storage or shipping. If you nd any

damage, contact your authorized Hioki distributor or reseller.

Check Items Remedy

Is the exible loop or

cable insulation torn, or is
any metal exposed?

Is there a broken connec­tion involving the connec­tor or sensor base?

When the switch is placed
in any position other than

OFF, does the POWER

LED turn green?

Device damage may result in electric
shock. Contact your authorized Hioki
distributor or reseller.

Broken connections will make
proper measurement impossible.
Discontinue use and contact your
authorized Hioki distributor or reseller.

Lights up (red): Battery life is low.

→ Replace the batteries soon.

Turns off: There is no battery life

remaining.

→ Replace the batteries immediately.

• When using an AC adapter, always use the optional AC
adapter.

• When using the AC adapter and batteries at the same time,
the AC adapter takes precedence. Switching power supplies
during measurement may introduce noise into the device’s
output.

• When using the AC adapter for continuous monitoring,
we recommend that you also use batteries to prevent
interruptions due to instantaneous power outages.

• After use, always turn off the power.

• Be aware of the following precautions to avoid damage to
the device:

Do not pull with
excessive force.

NO

Wire band

NO

Do not store while bent.

Do not force

the exible

loop into a
bent position.

NO

Insert/ Replace batteries

1

Necessary tool: • Two LR6 (AA size) alkaline batteries

• Phillips screwdriver

Turn off the switch on the circuit box and then disconnect the AC
adapter.

Rear of Circuit box

Loosen the

1

screw.

2

Remove the
battery cover.

Connect the BNC connector to the

2

+

‒

Install or replace the

3

‒

batteries.

+

4

Mount the battery
cover and tighten the
retaining screw.

connected instrument

1

Align and insert the connector.

2

Lock

Disconnect the exible loop from the

3

coupling

Example: CT9667-01, CT9667-02

UNLOCK

Rotate the dial until the blue mark

1

is in the UNLOCK position.

Clamp the conductor

4

Clamp only the conductor you wish

Load

Source

Direction of

current ow

Connect the exible loop to the coupling

5

Example: CT9667-01, CT9667-02

Electric
conductor

Current direction
indicator

Rotate the dial until the blue mark

2

is in the LOCK position.

to measure with the current direc­tion indicator pointing toward the
load side.
(To ensure that the measured cur­rent and sensor output have the
same phase.)

UNLOCK

1

Remove

2

Insert

Pulling on the exible loop with a large amount

of force while in the locked state may cause it to
become disconnected from the coupling.

Select the range depending on the current

6

value to be measured

Select the desired current range with the
switch.

Memo

• Attach the clamp around only one conductor. If you
clamp single-phase (2-wire) or three-phase (3-wire)
conductors together, the device will not be able to make a
measurement.

OK

5 6 7 8

NO

1

Align and insert the connector.