Warranty
9709, 9709-10
9709-05
AC/DC CURRENT SENSOR
Instruction Manual
Sept. 2018 Revised edition 8
Printed in Japan
9709A981-08 18-09H
EN
Cable
Output connector
Through window
135
32
4-φ5.20
Front
Top
Nut
12.5
(Unit: mm)
Current direction
indicator
Model 9709-05
Output connector
Warranty malfunctions occurring under conditions of normal use
in conformity with the Instruction Manual and Product Precautionary Markings will be repaired free of charge. This warranty
is valid for a period of three (3) years 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 9709, 9709-10 or
9709-05 AC/DC Current Sensor. To obtain maximum performance from the device, please read this manual first, and keep
it handy for future reference.
Usage with Other Hioki Products
The Model 9709 (-10),(-05) is used in connection with a dedicated instrument (Hioki). See “Specifications” for details.
Inspection
When you receive the device, inspect it carefully to ensure that
no damage occurred during shipping. In particular, check the
accessories and cables. If damage is evident, or if it fails to operate according to the specifications, contact your dealer or Hioki representative.
Overview
The Model 9709 (-05) is a feed-through current sensor designed
to measure AC/DC currents up to 500 A with high precision.
Featuring good frequency characteristics (amplitude & phase)
and good temperature characteristics (sensitivity & offset), the
sensor is also suitable for high-precision power measurements.
The Model 9709-10 is a current sensor that supports even higher-accuracy power measurement when used in combination
with the Model 3390-10 Power Analyzer.
Safety Information
This manual contains information and warnings essential for
safe operation of the device and for maintaining it in safe operating condition. Before using it, be sure to carefully read the following safety precautions.
This device is designed to comply with IEC 61010
Safety Standards, and has been thoroughly tested for
safety prior to shipment. However, mishandling during
use could result in injury or death, as well as damage to
the device. However, using the device in a way not
described in this manual may negate the provided
safety features. 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.
Safety Symbol
In the manual, the symbol indicates particularly important information that the user should read before using the
device.
The symbol printed on the device 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.
The following symbols in this manual indicate the relative importance
of cautions and warnings.
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 correct operation of the device.
Symbols for Various Standards
Indicates the Waste Electrical and Electronic Equipment
Directive (WEEE Directive) in EU member states.
Indicates that the product conforms to regulations set out
by the EU Directive.
Other Symbol
Indicates a prohibited action.
Measurement categories
This device complies with CAT III safety requirements.
To ensure safe operation of measurement devices, IEC 61010 establishes safety standards for various electrical environments, categorized
as CAT II to CAT IV, and called measurement categories. These are defined as follows.
CAT II: Primary electrical circuits 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 category than that for which the device 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.
Instrument Installation
Operating temperature and humidity：0 to 50°C, 80%RH or less (non-condensa-
tion)
Avoid the following locations that could cause an accident or damage to the
instrument.
Exposed to direct
sunlight
Exposed to high temperature
Exposed to water, oil,
other chemicals, or
solvents
Exposed to high humidity or condensation
Exposed to high levels
of particulate dust
Subject to vibration
In the presence of
corrosive or explosive
gases
Exposed to strong
electromagnetic fields
Near electromagnetic
radiators
Near induction heating
systems (e.g., highfrequency induction
heating systems and IH
cooking utensils)
Operating Precautions
Follow these precautions to ensure safe operation and to obtain
the full benefits of the various functions.
Preliminary Checks
Before using the device the first time, verify that it operates normally to ensure that the no damage occurred during storage or
shipping. If you find any damage, contact your dealer or Hioki
representative.
• This device should only be connected to the secondary 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.
• The maximum rated voltage between input terminals and ground is 1000 V DC/AC. Attempting to
measure voltages exceeding 1000 V with respect
to ground could damage the device and result in
personal injury.
• Before using the device, make sure that the insulation on the cable is undamaged and that no bare
conductors are improperly exposed. Using the
device in such conditions could cause an electric
shock, so contact your dealer or Hioki representative for repair.
• In order to prevent electric shock and short-circuit
accidents, shut off the power to the line to be
measured before connecting this device.
• Ensure that the input does not exceed the maximum input voltage or current to avoid device
damage, short-circuiting and electric shock
resulting from heat building.
• Avoid contact between the cable and the measured line in order to protect the cable from damage. Any contact can cause the device to
malfunction and lead to short-circuits or electric
shock.
• Do not use the device where it may be exposed to
oil, chemicals, or solvents. Contact with these
substances may cause cracking in the device,
resulting in damage or electric shock.
• This device is not drip-proof. Water droplets on the connector may result in malfunctions.
• Do not slant the device or place it on top of an uneven surface. Dropping or knocking down the device can cause injury or damage to the device.
• Avoid stepping on or pinching cables, which could damage
the cable insulation.
• Keep the cables well away from heat sources, as bare conductors could be exposed if the insulation melts.
• To avoid damage to the device, protect it from physical
shock when transporting and handling. Be especially careful to avoid physical shock from dropping.
• When the power to lines to be measured is turned on or off,
a current flowing through the lines can exceed considerably
the maximum allowable current of the device. This could result in damage to the device. Make sure that there is not any
over-current.
• Do not apply any current through the lines to be measured
with the device turned off. This could result in damage to the
device.
Names of Parts
Specifications
Frequency Amplitude Phase
DC
± 0.05% rdg. ± 0.01% f.s.
Not specified
DC < f < 45 Hz
± 0.2% rdg. ± 0.02% f.s. ± 0.3°
45 Hz ≤ f ≤ 66 Hz
± 0.05% rdg. ± 0.01% f.s. ± 0.2°
66 Hz < f ≤ 500 Hz
± 0.2% rdg. ± 0.02% f.s. ± 0.5°
500 Hz < f ≤ 5 kHz
± 0.5% rdg. ± 0.05% f.s. ± 0.5°
5 kHz < f ≤ 10 kHz
± 2.0% rdg. ± 0.10% f.s. ± 2.0°
10 kHz < f ≤ 20 kHz
± 5.0% rdg. ± 0.10% f.s. ± 5.0°
20 kHz < f ≤ 100 kHz
± 30% rdg. ± 0.10% f.s. ± 30°
9709
9709-10
CT9900 Conversion Cable
CT9903 Extension Cable
9318 Conversion Cable
9705 Conversion Cable
9709-05
CT9901 Conversion Cable
CT9902 Extension Cable
Derating
When the 9709 or 9709-10 is used with a wattmeter, follow the
wiring instructions provided with the wattmeter.
Arrow on case
(Current direction
indicator)
SOURCE LOAD
Hi
Lo
I
Figure 1. Wiring example
OK
Shielded
Attached Device
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
9709-05
9709
or
9709-10
Cannot be directly connected to any parenthesized models. A module is required.
Refer to “Combined accuracy and conditions” specified in the specifications.
Accuracy
f.s.: maximum display value or scale length (Rated current)
rdg.: reading value (The value currently being measured and indicated on the
measuring instrument)
About the 9709-10
The 9709-10 specifications are the same as the following 9709 specifications.
For more information about specifications when used with the 3390-10, see the
3390-10 instruction manual.
The specs except the output connector and options are the same as respectively those of the 9709, 9709-05 and 9709-10.
Operating Environment Indoors
Operating temperature
and humidity
Storage temperature
and humidity
Maximum rated voltage to earth
Applicable standards
Product warranty
period
Rated current 500 A AC/DC
Output voltage 2 V/500 A
Maximum input current 700 A rms (1000 A peak, 50 Hz/60 Hz, continuity), within a derating
Output resistance
Temperature and
humidity range of guaranteed accuracy
Period of guaranteed
accuracy
Guaranteed accuracy
period from adjustment made by Hioki
Warming-up time after auto-balancing, after 10 minutes
Accuracy
Sine wave input, conductor in center position, using with Model 9555-10, Not including each effect
Measuring instrument having 1 MΩ or higher input resistance,
Amplitude accuracy (Within a derating, DC < f < 5 Hz (design values)
Phase accuracy (Within a derating, DC < f < 10 Hz (design values)
, Pollution degree 2
0°C to 50°C (32°F to 122°F), 80%RH or less (non-condensation)
-10°C to 60°C (14°F to 140°F), 80%RH or less (non-condensation)
1000 V AC/DC (50 Hz/60 Hz), Overvoltage Category III,
anticipated transient overvoltage 8000 V
Safety : EN61010
EMC : EN61326
3 years
50 Ω ( ± 5%)
23 ± 5°C (73 ± 9°F), 80%RH or less
6 months
6 months
, altitude up to 2000 m (6562-ft.)
Output connector
Accessories
Attachable connection devices and conditions
Options
Combined accuracy and conditions
Combined accuracy = Accuracy of 9709 (-05) + Accuracy of combined product
(Power factor: 1)
Combined product
CT9555,CT9556,CT9557 Sensor Unit
PW3390 Power Analyzer CT9900
PW6001 Power Analyzer CT9900
9602 AC/DC Clamp Input Unit
3334-10 AC/DC Power Hitester
8940 F/V Unit
8971 Current Unit
9555-10 Sensor Unit
3390,3390-10 Power Analyzer
*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).
*3
9709, 9709-10: Hioki PL23 (Male)
9709-05 : Hioki ME15W (Male)
Instruction manual (Japanese/ English)
9709, 9709-10 9709-05
*1
*2
*3
CT9900
9705+9318 CT9901+9705+9318
×1, Mark band×6 (3sets)
Required option
ー
ー
ー
ー
ー
9318 CT9901+9318
ー
ー
CT9901
CT9901
CT9901
CT9901
The sensor's signal output circuit is protected by a resistor (output resistor). A digital multimeter used for monitoring should
have high input resistance (recommended minimum: 1 MΩ).
Wiring
Make sure the direction of the arrow on the case matches the
direction of the current flow, as shown in Figure 1. If they are oriented incorrectly, the output signal from the sensor will be reversed
• Make sure to pass only one conductor through. Single-
phase (2-wire) or three-phase (3-wire) cables
together will not produce any reading.
conducted
Options
9705 Conversion Cable
CT9900 Conversion Cable
The Conversion Cable makes it possible to connect to and use
with products that cannot be directly connected to the
9709,9709-05 or 9709-10 (Refer to “Connection example”).
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 performance is not guaranteed)
• Add the following values to each of the accuracy per cable:
Amplitude accuracy: ±0.1% rdg. (DC
Phase accuracy: ±(0.1 × f
*1: For 9709, 9709-10, *2: For 9709-05, *3: frequency
*1
, 9318 Conversion Cable*1,
*1
, CT9901 Conversion Cable
*3
≤ f
≤ 1 kHz)
±0.5% rdg. (1 kHz
*3
kHz)° (1 kHz < f*3)
< f
*3
*2
)
Connection example
Temperature coefficient
Effect of conductor
position
Effect of external electromagnetic field
Effect of magnetic 20 mA or less (after 500 A DC input)
Effect of radiated radiofrequency electromagnetic field
Effect of conducted
radio-frequency electromagnetic field
Measurable conductor
diameter
Supply voltage
Power supply capacity
Rated power
Dimensions and Mass
Cable length Approx. 3 m
Amplitude sensitivity：± 0.01% rdg./°C or less
Offset voltage ：± 0.005% f.s./°C or less
± 0.05% rdg. or less (at 100 A DC input, using with the wire 10 mm
diameter)
50 mA or less (In a 60 Hz or DC magnetic field of 400 A/m)
2% f.s. at 3 V/m
0.2% f.s. at 3 V
φ36 mm (1.42”) or less
± 11 V to ± 15 V (Tracking)
±
ply)
5 VA or less (500 A/55 Hz measurement, with ±12 V power supply )
Approx. 160W × 112H × 50D mm, Approx. 850 g
(Approx. 6.30”W
(excluding protrusions, cable)
300 mA or less (500 A/55 Hz measurement, with ±12 V power sup-
× 4.41”H × 1.97”D, Approx. 30.0 oz.)
Measurement Procedure
In order to prevent electric shock and short-circuit accidents, shut off the power to the line to be measured
before connecting this device.
• To prevent damage to the connected instrument and sensor,
never connect or disconnect a sensor while the power is on.
• When the connected instrument’s power is turned off, do not
apply current to the sensor. Doing so may damage the device.
• When disconnecting the output 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.
• Ground-shielded conductors cannot be accurately measured.
Maintenance and Service
Do not attempt to modify, disassemble or repair the
device; as fire, electric shock and injury could result.
• 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 gasoline, as they can deform and discolor the case.
• If the device seems to be malfunctioning, contact your dealer
or Hioki representative. When returning the device for repair,
pack the device so that it will not sustain damage during shipping, and include a description of existing damage. We cannot accept responsibility for damage incurred during
shipping.
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