Hioki 9272-05 User manual

°
Warranty
Warranty malfunctions occurring under conditions of normal use
in conformity with the Instruction Manual and Product Precau-
tionary Markings will be repaired free of charge. This warranty
is valid for a period of one (1) year from the date of purchase.
Please contact the distributor from which you purchased the
product for further information on warranty provisions.
Introduction
Thank you for purchasing the HIOKI Model 9272-05 and 9272-
10 CLAMP ON SENSOR. To obtain maximum performance
from the device, please read this manual first, and keep it handy
for future reference.
Initial Inspection
When you receive the device, inspect it carefully to ensure that
no damage occurred during shipping. In particular, check the
accessories, panel switches, and connectors. If damage is evi-
dent, or if it fails to operate according to the specifications, con-
tact your dealer or Hioki representative.
This manual contains information and warnings essential for
safe operation of the device and for maintaining it in safe oper-
ating condition. Before using it, be sure to carefully read the fol-
lowing safety precautions.
Safety Symbols
The following symbols in this manual indicate the relative impor-
tance of cautions and warnings.
Other Symbol
Measurement categories
This device complies with CAT III safety requirements.
To ensure safe operation of measurement devices, IEC 61010 es-
tablishes safety standards for various electrical environments, cat-
egorized as CAT II to CAT IV, and called measurement categories.
CAT II: Primary electrical cir-
cuits in equipment
connected to an AC
electrical outlet by a
power cord (portable
tools, household
appliances, etc.)
CAT II covers directly
measuring electrical
outlet receptacles.
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
(distribution panel).
Using a measurement device in an environment designated with a
higher-numbered categorythanthatfor whichthedeviceisrated 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.
Installation or less (non-condensation)
e safe operation and to obtain
The 9272-05 and 9272-10 was developed for to provide a 20 A,
200 A clamp sensor. Together with the power meter, the 9272-
10 makes it possible to measure alternating current in live pow-
er lines without cutting into the lines.
The sensor features excellent amplitude-frequency response
and phase-frequencyresponse, and is easy to connect anduse.
Its versatility will find application in a wide variety of fields deal-
ing with current and power measurement.
9705 Conversion Cable*1, 9318 Conversion Cable*1,
CT9900 Conversion Cable*1, CT9901 Conversion Cable*2
The Conversion Cable makes it possible to connect to and use
with products that cannot be directly connected to the 9272-05
or 9272-10. (Refer to “Connection example”) (No figures are
added to the accuracy.)
CT9902 Extension Cable
*2
(5 m), CT9903 Extension Cable
*1
(5 m)
• Single sensor cable, 5 m extension (max. 10 m extension)
• Up to two extension cable is connectable. (If three or more-
extension cables are connected to the device, its perfor-
mance is not guaranteed)
• Add the following values to each of the accuracy per cable:
Amplitude accuracy: ±0.1% rdg. (DC f*3 1 kHz)
±0.5% rdg. (1 kHz < f*3)
Phase accuracy: ±(0.1 × f*3 kHz)° (1 kHz <f*3)
*1: For 9272-10, *2: For 9272-05, *3: frequency
Inspection and Maintenance
Pack the device so that it will not sustain damage during ship-
ping, and include a description of existing damage. We cannot
accept responsibility for damage incurred during shipping.
Safety
9272-05
9272-10
CLAMP ON SENSOR
Instruction Manual
Feb. 2017 Revised edition 5
Printed in Japan
9272C981-05 17-02H
EN
• This device is designed to comply with IEC
61010 Safety Standards, and has been thor-
oughly tested for safety prior to shipment.
However, mishandling during use could result
in injury or death, as well as damage to the
device. Be certain that you understand the
instructions and precautions in the manual
before use. We disclaim any responsibility for
accidents or injuries not resulting directly from
device defects.
• To avoid short circuits and potentially life-
threatening hazards, never attach the device
to a circuit that operates at more than 600V.
Indicates cautions and hazards. When the symbol is
printed on the product refer to a corresponding topic in the
Instruction Manual.
Indicates that the device may be connected to or discon-
nected from a live circuit.
Indicates a double-insulated device.
Indicates AC (Alternating Current).
Indicates that incorrect operation presents an extreme
hazard that could result in serious injury or death to the
user.
Indicates that incorrect operation presents a significant
hazard 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 device.
Indicates advisory items related to performance or cor-
rect operation of the device.
Indicates a prohibited action.
d cause an accident or dam-
In the presence of
corrosive or explosive
gases
Exposed to strong
electromagnetic fields
Near electromagnetic
radiators
Subject to vibration
only be connected to the sec-
e breaker can prevent
ccurs. Connections
breaker,
flow could cause a seri-
ort circuit occurs.s and damage to
precautions:re taking
e measurement
ouch the portion
uring use.
t wet, and do not take
is may cause an
asuring live lines,
d
lmet.
make sure that the insulation
posed. Using the device in such
ectric shock, so contact
ative for repair.
the
surement range is applied for a long time.
or the clamp unit’s power is turned
Doing so may
to release the lock before
pulling the con-nector without
damage the connector.
instruments and the sensor,
the pow-er is on, or while the
oavoid damage tothe device,
ting and handling. Be
avoid physical shock from dropping.
exposed to di-rect sunlight,
or condensation. Under such conditions, the
lation may deteriorate so that it no longer
• Measurements are degraded by dirt on the mating surfaces
of the jaws so keep the surfaces clean by gently wiping with
a soft cloth.
• To avoid breaking the cables, do not bend or pull them.
• Avoid stepping on or pinching cables, which could damage
the cable insulation.
• Keep the cables well away from heat sources, as bare con-
ductors could be exposed if the insulation melts.
• Correct measurement may be impossible in the presence of
strong magnetic fields, such as near transformers and high-
current conductors, or in the presence of strong electromag-
netic fields such as near radio transmitters.
• This device may cause interference if used in residential areas.
Such use must be avoided unless the user takes special mea-
sures to reduce electromagnetic emissions to prevent interfer-
ence to the reception of radio and television broadcasts.
Overview
Options
Jaws
Cable
Range switch
Barrier
Output connector
9272-05
Output connector
To avoid electric shock, short circuits and damage to
the device, observe the following precautions:
Check the position of the range switch before taking
measurements.
Disconnect the conductor from the measurement
object before switching ranges.
To avoid electric shock, do not touch the portion
beyond the protective barrier during use.
www.GlobalTestSupply.com
Find Quality Products Online at: [e-mail]

°
Warranty
Warranty malfunctions occurring under conditions of normal use
in conformity with the Instruction Manual and Product Precau-
tionary Markings will be repaired free of charge. This warranty
is valid for a period of one (1) year from the date of purchase.
Please contact the distributor from which you purchased the
product for further information on warranty provisions.
Introduction
Thank you for purchasing the HIOKI Model 9272-05 and 9272-
10 CLAMP ON SENSOR. To obtain maximum performance
from the device, please read this manual first, and keep it handy
for future reference.
Initial Inspection
When you receive the device, inspect it carefully to ensure that
no damage occurred during shipping. In particular, check the
accessories, panel switches, and connectors. If damage is evi-
dent, or if it fails to operate according to the specifications, con-
tact your dealer or Hioki representative.
This manual contains information and warnings essential for
safe operation of the device and for maintaining it in safe oper-
ating condition. Before using it, be sure to carefully read the fol-
lowing safety precautions.
Safety Symbols
The following symbols in this manual indicate
tance of cautions and warnings.
Other Symbol
Measurement categories
This device complies with CAT III safety requirements.
To ensure safe operation of measurement devices, IEC 61010 es-
tablishes safety standards for various electrical environments, cat-
egorized as CAT II to CAT IV, and called measurement categories.
CAT II: Primary electrical cir-
cuits in equipment
connected to an AC
electrical outlet by a
power cord (portable
tools, household
appliances, etc.)
CAT II covers directly
measuring electrical
outlet receptacles.
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
(distribution panel).
Using a measurement device in an environment designated with a
higher-numbered categorythan thatfor whichthedeviceisrated 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.
Instrument Installation
Operating temperature and humidity: 0 to 50°C, 80%RH or less (non-condensation)
Follow these precautions to ensure safe operation and to obtain
the full benefits of the various functions.
The 9272-05 and 9272-10 was developed for to provide a 20 A,
200 A clamp sensor. Together with the power meter, the 9272-
10 makes it possible to measure alternating current in live pow-
er lines without cutting into the lines.
The sensor features excellent amplitude-frequency response
and phase-frequencyresponse, and is easy to connect anduse.
Its versatility will find application in a wide variety of fields deal-
ing with current and power measurement.
9705 Conversion Cable*1, 9318 Conversion Cable*1,
CT9900 Conversion Cable*1, CT9901 Conversion Cable*2
The Conversion Cable makes it possible to connect to and use
with products that cannot be directly connected to the 9272-05
or 9272-10. (Refer to “Connection example”) (No figures are
added to the accuracy.)
CT9902 Extension Cable
*2
(5 m), CT9903 Extension Cable
*1
(5 m)
• Single sensor cable, 5 m extension (max. 10 m extension)
• Up to two extension cable is connectable. (If three or more-
extension cables are connected to the device, its perfor-
mance is not guaranteed)
• Add the following values to each of the accuracy per cable:
Amplitude accuracy: ±0.1% rdg. (DC f*3 1 kHz)
±0.5% rdg. (1 kHz < f*3)
Phase accuracy: ±(0.1 × f*3 kHz)° (1 kHz <f*3)
*1: For 9272-10, *2: For 9272-05, *3: frequency
Inspection and Maintenance
Pack the device so that it will not sustain damage during ship-
ping, and include a description of existing damage. We cannot
accept responsibility for damage incurred during shipping.
Safety
9272-05
9272-10
CLAMP ON SENSOR
Instruction Manual
Feb. 2017 Revised edition 5
Printed in Japan
9272C981-05 17-02H
EN
• This device is designed
61010 Safety Standards, and has been
oughly tested for safety prior to shipment.
However, mishandling during use coul
in injury or death, as well as damage
device. Be certain that you underst
instructions and precautions in th
before use. We disclaim any responsibility
accidents or injuries not resulting directly
device defects.
• To avoid short circuits and potentially
threatening hazards, never attach the
to a circuit that operates at more than 600V
Indicates cautions and hazards. When the symbol is
printed on the product refer to a corresponding to
Instruction Manual.
Indicates that the device may be connected to
nected from a live circuit.
Indicates a double-insulated device.
Indicates AC (Alternating Current).
Indicates that incorrect operation presents an
hazard that could result in serious injury or
user.
Indicates that incorrect operation presents a
hazard that could result in serious injury or
user.
Indicates that incorrect operation presents a
of injury to the user or damage to the device.
Indicates advisory items related to pe
rect operation of the device.
Indicates a prohibited action.
Avoid the following locations that could cause an accident or dam-
age to the device.
Exposed to direct
sunlight
Exposed to high temper-
ature
In the presence of
corrosive or explosive
gases
Exposed to liquids
Exposed to high humid-
ity or condensation
Exposed to strong
electromagnetic fields
Near electromagnetic
radiators
Exposed to high levels
of particulate dust Subject to vibration
• Clamp sensor 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 seri-
ous accident if a short circuit occurs.
• To avoid electric shock, short circuits and damage to
the device, observe the following precautions:
Check the position of the range switch before taking
measurements.
Disconnect the conductor from the measurement
object before switching ranges.
• To avoid electric shock, do not touch the portion
beyond the protective barrier during use.
• Do not allow the device to get wet, and do not take
measurements with wet hands. This may cause an
electric shock.
• To avoid electric shock when measuring live lines,
wear appropriate protective gear, such as insulated
rubber gloves, boots and a safety helmet.
• Before using the device, make sure that the insulation
on the probes is undamaged and that no bare conduc-
tors are improperly exposed. Using the device in such
conditions could cause an electric shock, so contact
your dealer or Hioki representative for repair.
• Note that the device may be damaged if current exceeding the
selected measurement range is applied for a long time.
•When the digital power meter or the clamp unit’s power is turned
off, do not apply current to the clamp sensor. Doing so may
damage the device.
•When disconnecting the connector, be sure to release the lock before
pulling off the connector. Forcibly pulling the con-nector without
releasing the lock, or pulling on the cable, can damage the connector.
•
•
To prevent damage to the connected instruments and the sensor,
never connect or disconnect a sensor while the pow-er is on, or while the
sensor is clamped around a conductor. Toavoid damage tothe device,
protect it from physicalshock when transporting and handling. Be
especially careful to avoid physical shock from dropping.
• Do not store or use the device where it could be exposed to di-rect sunlight,
high temperature or humidity, or condensation. Under such conditions, the
device may be damaged and insu-lation may deteriorate so that it no longer
meets specifications.
• Measurements are degraded by dirt on the mating surfaces
of the jaws so keep the surfaces clean by gently wiping with
a soft cloth.
• To avoid breaking the cables, do not bend or pull them.
• Avoid stepping on or pinching cables, which could damage
the cable insulation.
• Keep the cables well away from heat sources, as bare con-
ductors could be exposed if the insulation melts.
• Correct measurement may be impossible in the presence of
strong magnetic fields, such as near transformers and high-
current conductors, or in the presence of strong electromag-
netic fields such as near radio transmitters.
• This device may cause interference if used in residential areas.
Such use must be avoided unless the user takes special mea-
sures to reduce electromagnetic emissions to prevent interfer-
ence to the reception of radio and television broadcasts.
Overview
Options
Jaws
Cable
Range switch
Barrier
Output connector
9272-05
Output connector
www.GlobalTestSupply.com
Find Quality Products Online at: [e-mail]

Preliminary Checks
Before using the device the first time, verify that it operates nor-
mally to ensure that the no damage occurred during storage or
shipping. If you find any damage, contact your dealer or Hioki
representative.
Measurement procedure
At the start of measurement
When measurement is complete
• To clean the device, wipe it gently with a soft cloth moistened
with water or mild detergent. Never use solvents such as
benzene, alcohol, acetone, ether, ketones, thinners or gaso-
line, as they can deform and discolor the case.
• Measurements are degraded by dirt on the mating surfaces of
the clamp-on sensor, so keep the surfaces clean by gently
wiping with a soft cloth.
• If the device seems to be malfunctioning, confirm that the
batteries are not discharged, and that the test leads, probes
and fuse are not open circuited before contacting your dealer
or Hioki representative.
f.s. :maximum displa
y value or scale length(Rated current)
rdg. :reading va
lue (The value currently being measured and in-
dicated on the me
asuring device.)
The specs except
the output connector and options are the
same as re
spectively those of the 9272-05 and 9272-10.
1. General Sp
ecifications
2. Specifications
-1. 20 A range Specif
icons
-2. 200 A range Speci
fications
-3. 20 A/200 A range Sp
ecifications
Accuracy Within rated
current for each range and inside of derating range
(The
following accuracy values are merely design values: amplitude at under 5
Hz and phase at under 10
Hz)
Sine wave input, conductor at jaws center position, not including
each effect, a
measurement
instrument with an input resistance of 1 MΩor more
3. Derating
Combined accuracy and conditions
Combined accuracy = Accuracy of 9272-05 (-10) + Accuracy of combined
product (Power factor: 1)
＊1: Add the sensor unit output accuracy to the combined accuracy when one
of the addition functions, that is, RMS output or TOTAL OUTPUT, is used.
＊2: Add ±0.1% rdg. to the combined accuracy
＊3: The sensor recognition methods vary according to the Memory HiCorder
settings (refer to the manuals of Memory HiCorder to be connected).
Connection Example
1. Attach the device to the host instrument that is powered
off.
2. Turn on the host instrument.
3. Set the panel range switch to the appropriate current
range.
4. Clamp the jaws of the sensor onto the conductor so that the
current direction on the clamp points in the direction of the
load, and so that the conductor is approximately centered
between the jaws. Make sure that the jaws of the clamp are
fully closed.
1. Remove the jaws from the conductor.
2. Turn off the host instrument.
3. Detach the device from the host instrument.
Host instrument
3390, 3390-10,
9555-10,
9602 (3193-10),
3334-10
8971 (MR8847,
MR8827, MR8740)
8940 (8860-50)
PW6001, PW3390,
CT9555, CT9556,
CT9557
CT9901 9705
9318
CT9900
9318
9272-05
9272-10
Cannot be directly connected to any parenthesized models. A module
is required.
Refer to “Combined accuracy and conditions” specified in the specifi-
cations.
LOAD
SOURCE
Electric
conductor
Current direc-
tion indicator
Position the jaws with
the current direction indi-
cator pointing toward the
load side.
(If installed in the oppo-
site direction, the phase
deviates 180 degrees.)
Wiring example
SOURCE LOAD
I
Hi
Lo
In case of applying exceeded 430 A input such as rush cur-
rent (it may reach more than ten times of rated current) while
the power of the measured unit is on, release the jaws to be
stationary condition (300 A max.) and then clamp it or use
with the Model 9290-10 Clamp on Adapter.
• Note that a DC component will result in an erroneous reading.
• Also note that operation will not be correct if the power fre-
quency is very low (less than about 1 Hz).
• Ground-shielded conductors cannot be accurately measured.
• The circuit is such that a DC voltage is output briefly after the
power is turned on. Stabilization of the output takes about 30
seconds.
• Also read the instruction manual for whichever device you
connect to.
• Attach the clamp around only one conductor. Single-phase (2-
wire) or three-phase (3-wire) cables clamped together will not
produce any reading.
Maintenance and Service
OK Shielded
Operating
environment
Indoors, Pollution degree 2, Up to 2000 m (6562ft)
ASL
Operating temper-
ature and humidity
0°C to 50°C (32 °Fto 122°F), 80%RH max.
(no condensation)
Storage tempera-
ture and humidity
-10°C to 60°C (14°F to 140°F), 80%RH max.
(no condensation)
Maximum rated
current 20
0 A rms AC
Maximum rated
voltage to earth 60
0 V rms AC (50 Hz/60 Hz)
Measurement category III
(anticipated transient overvoltage 6000 V)
Applicable
Standards
Safety EN61010
EMC EN61326 Class A
Product warranty
period
1 year
Rated current 20 A
rms AC
Output voltage 2 V/20 A
Maximum input
current 50
A rms (71 Apeak, continuous, 50 Hz/60 Hz,
wi
thin a derating)
Rated current 200
A rms AC
Output voltage 2 V/200 A
Maximum input
current 30
0 A rms
(430 A peak, continuous, 50 Hz/60 Hz, within a
de
rating)
Output impedance
50 (±5%)
Accuracy guaran-
tee for tempera-
ture and humidity
23
°C ±5 °C (73°F ± 9°F) , 80%RH or less
Period of guaran-
teed accuracy
1 year (Opening and Closing of the jaws:
Maximum 10000 times)
Guaranteed
accuracy period
from adjustment
made by Hioki
1 year (Opening and Closing of the jaws:
Maximum 10000 times)
Warm-up time
1 minute
Frequency A
mplitude accuracy Phase accuracy
1 Hz f < 5 Hz
±2.0% rdg.±0.10% f.s. Accuracy not provided
5 Hz f < 10 Hz
±1.0% rdg.±0.05% f.s. ±1.0°
10 Hz f < 45 Hz
±0.5% rdg.±0.02% f.s. ±0.5°
45 Hz f 66 Hz
±0.3% rdg.±0.01% f.s. ±0.2°
66 Hz< f 500 Hz
±0.5% rdg.±0.02% f.s. ±0.5°
500 Hz< f 1 kHz ±1.0°
1 kHz< f 5 kHz
±1.0% rdg.±0.05% f.s. ±2.0°
5 kHz< f 10 kHz ±2.5% rdg.±0.10% f.s. ±3.0°
10 kHz< f 20 kHz ±5% rdg.±0.1% f.s. ±5.0°
20 kHz< f 50 kHz ±15.0°
50 kHz< f 100 kHz ±30% rdg.±0.1% f.s. Accuracy not provided
Temperature
coefficient Amplitude sensitivity: Within ±0.03% rdg./°C
Effectofconductor
position Within ±0.2% rdg. (at 100 A/55 Hz input, using with the conductor 10 mm diameter)
Effect of external
magnetic fields 100 mA equivalent or less (in an AC electromagnetic field of 400 A/m, 60 Hz)
Effect of radiated
radio-frequency
electromagnetic
field
1% f.s. at 10 V/m
Measurable con-
ductor diameter 46 mm (1.81”) or less
Rated supply
voltage ±11 V to ±15 V (Tracking)
Power supply
capacity Within ±200 mA(200 A/55 Hz measurement, with ±12 V power supply)
Rated power 5 VA or less (200 A/55 Hz measurement, with ±12
V power supply)
Output connector 9272-10: Hioki PL23 (Male)
9272-05: Hioki ME15W (Male)
Dimensions Approx. 78 W×188 H×35 D mm
Approx. 3.07” W×7.40 ”H×1.38 ”D
(Without protrusions, cord)
Mass Approx. 450 g (15.9 oz.)
Cable length Approx. 3 m
Accessories Model 9355 CARRYING CASE
Instruction manual
Mark bands (6)
Option
Combined product Required option
9272-05 9272-10
CT9555,CT9556,CT9557
Sensor Unit*1 ーCT9900
PW3390 Power Analyzer ーCT9900
PW6001 Power Analyzer ーCT9900
9602 AC/DC Clamp Input Unit*2 CT9901 ー
3334-10 AC/DC Power HiTester CT9901 ー
8940 F/V Unit*3
CT9901+9705+9318 9705+9318
8971 Current Unit*3 CT9901+9318 9318
9555-10 Sensor Unit CT9901 ー
3390,3390-10 Power Analyzer CT9901 ー
9272-10
CT9900 Conversion Cable
CT9903 Extension Cable
9318 Conversion Cable
9705 Conversion Cable
9272-05 CT9901 Conversion Cable
CT9902 Extension Cable
20 A
10 100 1 k 10 k 100 k
1
100
200
300
20 k
0
50
200 A range
20 A range
Frequency (Hz)
Maximum input current (Arms)
40 A
www.GlobalTestSupply.com
Find Quality Products Online at: [e-mail]

Preliminary Checks
Before using the device the first time, verify that it operates nor-
mally to ensure that the no damage occurred during storage or
shipping. If you find any damage, contact your dealer or Hioki
representative.
Measurement procedure
At the start of measurement
When measurement is complete
• To clean the device, wipe it gently with a soft cloth
with water or mild detergent. Never use solv
benzene, alcohol, acetone, ether, ketones, thinne
line, as they can deform and discolor the case.
• Measurements are degraded by dirt on the mat
the clamp-on sensor, so keep the surfaces clea
wiping with a soft cloth.
• If the device seems to be malfunctioning, confirm
batteries are not discharged, and that the test
and fuse are not open circuited before contacting yo
or Hioki representative.
f.s. :maximum display value or scale length(Rated current)
rdg. :reading value (The value currently being measured and in-
dicated on the measuring device.)
The specs except the output connector and options are the
same as respectively those of the 9272-05 and 9272-10.
1. General Specifications
2. Specifications
-1. 20 A range Specificons
-2. 200 A range Specifications
-3. 20 A/200 A range Specifications
Accuracy Within rated current for each range and inside of derating range
(The following accuracy values are merely design values: amplitude at under 5
Hz and phase at under 10 Hz)
Sine wave input, conductor at jaws center position, not including each effect, a
measurement instrument with an input resistance of 1 MΩor more
3. Derating
Combined accuracy and conditions
Combined accuracy = Accuracy of 9272-05 (-10) + Accuracy of combined
product (Power factor: 1)
＊1: Add the sensor unit output accuracy to the combined accuracy when one
of the addition functions, that is, RMS output or TOTAL OUTPUT, is used.
＊2: Add ±0.1% rdg. to the combined accuracy
＊3: The sensor recognition methods vary according to the Memory HiCorder
settings (refer to the manuals of Memory HiCorder to be connected).
Connection Example
1. Attach the device to the host instrument that is powered
off.
2. Turn on the host instrument.
3. Set the panel range switch to the appropriate current
range.
4. Clamp the jaws of the sensor onto the conductor so that the
current direction on the clamp points in the direction of the
load, and so that the conductor is approximately centered
between the jaws. Make sure that the jaws of the clamp are
fully closed.
1. Remove the jaws from the conductor.
2. Turn off the host instrument.
3. Detach the device from the host instrument.
Host instrument
3390, 3390-10,
9555-10,
9602 (3193-10),
3334-10
8971 (MR8847,
MR8827, MR8740)
8940 (8860-50)
PW6001, PW3390,
CT9555, CT9556,
CT9557
CT9901 9705
9318
CT9900
9318
9272-05
9272-10
Cannot be directly connected to any parenthesized models. A module
is required.
Refer to “Combined accuracy and conditions” specified in the specifi-
cations.
LOAD
SOURCE
Electric
conductor
Current direc-
tion indicator
Position the jaws with
the current direction indi-
cator pointing toward the
load side.
(If installed in the oppo-
site direction, the phase
deviates 180 degrees.)
Wiring example
SOURCE LOAD
I
Hi
Lo
In case of applying exceeded 430
rent (it may reach more than ten times of rated cu
the power of the measured unit is on, release the jaws to
stationary condition (300 A max.) and then clamp it or
with the Model 9290-10 Clamp on Adapter.
• Note that a DC component will result in an erroneous
• Also note that operation will not be correct if the
quency is very low (less than about 1 Hz).
• Ground-shielded conductors cannot be accurate
• The circuit is such that a DC voltage is output
power is turned on. Stabilization of the output ta
seconds.
• Also read the instruction manual for whichever device
connect to.
• Attach the clamp around only one conductor. Sing
wire) or three-phase (3-wire) cables clamped together
produce any reading.
Maintenance and Service
OK Shielded
Specifications
Operating
environment Indoors, Pollution degree 2, Up to 2000 m (6562ft) ASL
Operating temper-
ature and humidity0°C to 50°C (32 °Fto 122°F), 80%RH max. (no condensation)
Storage tempera-
ture and humidity -10°C to 60°C (14°F to 140°F), 80%RH max. (no condensation)
Maximum rated
current 200 A rms AC
Maximum rated
voltage to earth 600 V rms AC (50 Hz/60 Hz) Measurement category III
(anticipated transient overvoltage 6000 V)
Applicable
Standards Safety EN61010
EMC EN61326 Class A
Product warranty
period 1 year
Rated current 20 A rms AC
Output voltage 2 V/20 A
Maximum input
current 50 A rms (71 Apeak, continuous, 50 Hz/60 Hz, within a derating)
Rated current 200 A rms AC
Output voltage 2 V/200 A
Maximum input
current 300 A rms (430 A peak, continuous, 50 Hz/60 Hz, within a
derating)
Output impedance50 (±5%)
Accuracy guaran-
tee for tempera-
ture and humidity
23
°C ±5 °C (73°F ± 9°F) , 80%RH or less
Period of guaran-
teed accuracy 1 year (Opening and Closing of the jaws: Maximum 10000 times)
Guaranteed
accuracy period
from adjustment
made by Hioki
1 year (Opening and Closing of the jaws:
Maximum 10000 times)
Warm-up time 1 minute
Frequency Amplitude accuracy Phase accuracy
1 Hz f < 5 Hz ±2.0% rdg.±0.10% f.s. Accuracy not provided
5 Hz f < 10 Hz ±1.0% rdg.±0.05% f.s. ±1.0°
10 Hz f < 45 Hz ±0.5% rdg.±0.02% f.s. ±0.5°
45 Hz f 66 Hz ±0.3% rdg.±0.01% f.s. ±0.2°
66 Hz< f 500 Hz ±0.5% rdg.±0.02% f.s. ±0.5°
500 Hz< f 1 kHz ±1.0°
1 kHz< f 5 kHz ±1.0% rdg.±0.05% f.s. ±2.0°
5 kHz< f 10 kHz ±2.5% rdg.±0.10% f.s. ±3.0°
10 kHz< f 20 kHz ±5% rdg.±0.1% f.s. ±5.0°
20 kHz< f 50 kHz ±15.0°
50 kHz< f 100 kHz ±30% rdg.±0.1% f.s. Accuracy not provided
Temperature
coefficient Amplitude sensitivity: Within ±0.03% rdg./°C
Effectofconductor
position Within ±0.2% rdg. (at 100 A/55 Hz input, using with the conductor 10 mm diameter)
Effect of external
magnetic fields 100 mA equivalent or less (in an AC electromagnetic field of 400 A/m, 60 Hz)
Effect of radiated
radio-frequency
electromagnetic
field
1% f.s. at 10 V/m
Measurable con-
ductor diameter 46 mm (1.81”) or less
Rated supply
voltage ±11 V to ±15 V (Tracking)
Power supply
capacity Within ±200 mA(200 A/55 Hz measurement, with ±12 V power supply)
Rated power 5 VA or less (200 A/55 Hz measurement, with ±12
V power supply)
Output connector 9272-10: Hioki PL23 (Male)
9272-05: Hioki ME15W (Male)
Dimensions Approx. 78 W×188 H×35 D mm
Approx. 3.07” W×7.40 ”H×1.38 ”D
(Without protrusions, cord)
Mass Approx. 450 g (15.9 oz.)
Cable length Approx. 3 m
Accessories Model 9355 CARRYING CASE
Instruction manual
Mark bands (6)
Option
Combined product Required option
9272-05 9272-10
CT9555,CT9556,CT9557
Sensor Unit*1 ーCT9900
PW3390 Power Analyzer ーCT9900
PW6001 Power Analyzer ーCT9900
9602 AC/DC Clamp Input Unit*2 CT9901 ー
3334-10 AC/DC Power HiTester CT9901 ー
8940 F/V Unit*3
CT9901+9705+9318 9705+9318
8971 Current Unit*3 CT9901+9318 9318
9555-10 Sensor Unit CT9901 ー
3390,3390-10 Power Analyzer CT9901 ー
9272-10
CT9900 Conversion Cable
CT9903 Extension Cable
9318 Conversion Cable
9705 Conversion Cable
9272-05 CT9901 Conversion Cable
CT9902 Extension Cable
20 A
10 100 1 k 10 k 100 k
1
100
200
300
20 k
0
50
200 A range
20 A range
Frequency (Hz)
Maximum input current (Arms)
40 A
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