INSTRUCTION MANUAL

1. SAFETY WARNINGSThis instrument has been designed and tested according to IEC61010:
Safety Requirements for Electronic Measuring Apparatus, and delivered in
the best condition after passing quality control tests. This instruction manualcontains warnings and safety rules which have to be observed by the user toensure safe operation of the instrument and to maintain it in safe condition.
Therefore, read through these operating instructions before using theinstrument.
#WARNING●Read through and understand instructions contained in this manual
before using the instrument.
●Keep the manual at hand to enable quick reference whenever necessary.
●The instrument is to be used only in its intended applications.
●Understand and follow all the safety instructions contained in the manual.
It is essential that the above instructions are adhered to. Failure to follow
the above instructions may cause injury, instrument damage and/ordamage to equipment under test.

8129-01

8129-02

The symbol # indicated on the instrument, means that the user must referto the related parts in the manual for safe operation of the instrument. It isessential to read the instructions wherever the # symbol appears in themanual.

8129-03#DANGERFLEXIBLE CLAMP SENSOR#WARNING

POWER CLAMP SENSOR Series
KEW 8129#CAUTION

is reserved for conditions and actions that are likely tocause serious or fatal injury.
is reserved for conditions and actions that can cause
serious or fatal injury.
is reserved for conditions and actions that can cause
injury or instrument damage.

#DANGER●Never make measurement on a circuit in which the electrical potential
exceeds AC600V.
●Connect this instrument to the secondary side of a circuit breakerbecause the secondary side is protected by a breaker at accidental
short-circuit. Do not make measurements at the primary side because
Current capacitance at the primary side is quite big and serious damage
may occur at accidental short-circuit.

5. PIN ASSIGNMENT FOR OUTPUT TERMINAL& OUTPUT CONNECTOR

DISTRIBUTOR

Kyoritsu reserves the rights to change specifications or designs
described in this manual without notice and without obligations.
＊ Pin assignment at the connecting terminal of measuring instrument(MODEL6300, KEW5010 / 5020) is symmetrical to above figure.
＊ Output signal passes between 3 and 5 of Output terminal and between 4and 6 of Output connector.
＊ This instrument is supplied power via an Output cable. Power supply of
2.7 ~ 5.5V (200mVA) is required between 1 and 3 of Output terminal andbetween 2 and 4 of Output connector.

6-1692-1826C＊ Resistance between 3 and 6 of Output terminal and between 4 and 5 of
Output connector is as follows.
300A Range: 910kΩ, 1000A Range: 360kΩ, 3000A Range: 510kΩ
(Resistance cannot be measured while the instrument is powered offstatus.)

Safety symbols#WARNING●Never attempt to make any measurement if any abnormal conditions,such as a broken cover or exposed metal parts are present on theinstrument.
● Do not disassemble, install substitute parts or make any modification tothe instrument. Return the instrument to your local KYORITSU distributor
for repair or re-calibration in case of suspected faulty operation.
● Do not use the instrument if the instrument or your hands are wet.
Otherwise, electrical shock accident may occur.
●Use insulated protective gears for your safety when using thisinstrument.
#CAUTION●Do not step on or pinch the cord; it may damage the jacket of cord.
●Do not expose the instrument to direct sunlight, high temperatures,
humidity or dew. Otherwise, it may cause deformation or insulation
degradation and cannot meet the original specification.
●Not to give shocks, such as vibration or drop, which may damage theinstrument, during transit or use.
●Use a damp cloth with neutral detergent for cleaning the instrument. Do
not use abrasives or solvents.
●This instrument isn't waterproofed. Do not use it dusty places orwhere the instrument is likely to be wet. It may cause troubles on theinstrument.
●Never pinch foreign matters or give vibrations at the jointed parts of thisinstrument. Otherwise, matching area of Jaws may be damaged andcause influences on the measurements.
●Do not bend or pull the root of the cable in order to prevent breaks in thecable.
●Never apply the current exceeding measuring range for a long time. It
may damage this instrument.
●Never connect/remove the connectors while connected devices areon or clamping onto the conductor under test. Otherwise, connected
devices or sensors may be damaged.
● Accurate measurement may not be obtained in the vicinity of strong
magnetic field such as transformers, high-current circuits or wirelessmachines.

6. OPERATING INSTRUCTIONSNote●Jointed part of the Clamp sensor may be disconnected if excessive force
is applied to. Insert pins in the Joint-fixing-hole to ensure a firm connection.
(see the illustration below)
Use non-conductive pin for fixing the Joint in order to avoid getting anelectrical shock.
●Clamp onto one conductor only; measurements cannot be made whenclamping single-phase (2-wire) or three-phase (3-wire) at the same time.

6-1 Measuring method(1) Connect the Output terminal
to the Input terminalon the measuring unit
(KEW5010/5020 Logger,
6300 Power meter etc.･･･)(2) Power on the measuringunit.
(3) Press the Joint according
to the following illustrations
and unlock it.

Refer to the instructions in the manual.

Indicates a Instrument with double or reinforced insulation○Must wear a insulated gears such as a pair of rubber gloves whenconnecting / disconnecting the sensor to / from live conductors.



4. SPECIFICATION

2. FEATURES#●This is a Clamp Sensor capable of measuring AC current up to 3000A.
●Flexible and light weight because of an air core coil used at the Sensor
part●One BOX contains measuring circuit for 3-channel. (8129-03)

KEW8129-01 is for 1 CH, KEW8129-02 is for 2 CH and KEW8129-03 is for 3 CH

3. INSTRUMENT LAYOUT

AC5350V (RMS value 50/60Hz) / for 5 sec
between circuit and sensor

Insulation resistance

50MΩ or more/ 1000Vbetween circuit and sensor

Model Name

8129-01, -02, -03

Rated current

300A/ 1000A/ 3000A

Measurable conductor size max diameter 150mm

300A Range: AC500mV/AC300A(1.67mV/A)
1000A Range: AC500mV/AC1000A(0.5mV/A)
3000A Range: AC500mV/AC3000A(0.167mV/A)

Dimension

111(L) × 61(W) × 43 (D)mm (except for protrusions)

Cable length

Sensor part: approx 2m
Output cable: approx 1m

300A Range: 30 ~ 300Arms(424Apeak)
1000A Range: 100 ~ 1000Arms(1414Apeak)
3000A Range: 300 ~ 3000Arms(4243Apeak)

Output terminalMINI DIN 6PIN

Weight8129-01: approx 410g
8129-02: approx 680g
8129-03: approx 950g

Accessory

Instruction manual
Output cable (M-7199)
・8129-01: 1pce・8129-02: 2pcs
・8129-03: 3pcs
Carrying Case (M-9137)

Output voltage

AC○ Measurement Category
To ensure safe operation of measuring instruments, IEC 61010 establishes
safety standards for various electrical environ-ments, categorized as O toCAT.IV, and called measurement categories. Higher-numbered categories
correspond to electrical environments with greater momentary energy, so ameasuring instrument designed for CAT.III environments can endure greater
momentary energy than one designed for CAT.II.

Withstand voltage

Measuring range

Accuracy (sine wave input) ±1.0%rdg (45 ~ 65Hz)
Phase characteristics within ±1°300A Range: 30 ~ 300A(45 ~ 65Hz)
1000A Range: 100~1000A(45 ~ 65Hz)
3000A Range: 300 ~ 3000A(45 ~ 65Hz)

O: Circuits which are not directly connected to the mains power
supply.
CAT.II : Electrical circuits of equipment connected to an AC electricaloutlet by a power cord.
CAT.III : Primary electrical circuits of the equipment connected directly tothe distribution panel, and feeders from the distribution panel tooutlets.
CAT.IV : The circuit from the service drop to the service entrance, andto the power meter and primary overcurrent protection device(distribution panel).

Current consumption 8129-01: 13mAtyp.
(at power supply 3V) 8129-02: 14mAtyp.
8129-03: 15mAtyp.
Temperature & Humidity 23ºC±5ºC,relative humidity 85%or lessranges (guaranteed accuracy) (no condensation)
Operating Temperature 0 ~ 50ºC, relative humidity 85%or less& Humidity ranges(no condensation)
Storage Temperature -20 ~ 60ºC, relative humidity 85%or less
& Humidity ranges(no condensation)

Incoming wireInterior wiring

Ｏ:Device which is
not directly
connected to themains power supply(5) Confirm that the Joint on the Clamp sensor is firmly locked.
(6) Select any desirable range (300A/ 1000A/ 3000A) with the RANGE
Button. When powering off the instrument once and powering on again,
the range will be the one selected before powering off the instrument.

AC3600A continuous (45 ~ 65 Hz)

Output impedance100Ω or lessEnvironmental condition Altitude up to 2000m, in-door use
Applicable standards

Socket(4) Clamp onto one conductor under the test. Locate the conductor at
the center of the Clamp sensor. When connecting the Sensor with
our Power meter (MODEL6300 etc.), check the direction of the Guidearrow mark indicating the current flowing direction marked on the Jointof the Clamp sensor to make the phase of the current under test andoutput voltage synchronized.

Max allowable input

6-2 Connecting with KEW5010 / 5020 Logger
When using this sensor together with our KEW5010 / 5020 Logger;(1) Connect the sensor to CH1 of KEW5010/ 5020 (if CH1 is used, connect to CH2)
while KEW5010 / 5020 is in powered offstatus.
(2) Then power on KEW5010 / 5020.
Time is displayed, and a message
ofand selected range aredisplayed. Sensor type and a proper
range are automatically recognizedand
selected when powering on the Logger.
(3) Now the instrument is ready for(nomeasurements. Whenconnection) is displayed on the LCD;
it means no Sensor is connected tothe selected channel or connection
is loose. In this case, check the connection and reconnect the sensor,and power off KEW5010 / 5020. Then power it on again.
＊ Some KEW5010 / 5020 may not be used with these sensors.
is displayed on the LCD of KEW5010 / 5020 after powering
it on with sensors connected.
＊ To change ranges, press the RANGE Button on the sensor and select aproper range, and then power off KEW5010 / 5020, and power on again.
Following illustrates how to change 3000A range to 1000A range.

②KEW8129①④③

KEW5010/5020※Range will be 1000A
when powering on again.

IEC 61010-1, IEC 61010-2-032
Measurement CAT.III 600V Pollution degree 2
EMC : EN 61326
・EN 55022
・EN 61000-4-2 (perfomance criterion B)
・EN 61000-4-3 (perfomance criterion B)
RoHS : EN50581① Press the RANGE Button on the sensor to select any desirable range.
② LED for 1000A range will light up.
③ Power off KEW5010 / 5020.
④ Power it on again, and confirm the lighting LED on the sensor and theindication on the LCD of KEW5010 / 5020 are corresponding eachother.

6-3 Setting on MODEL6300 Power Meter
When using this instrument together with our Power meter, MODEL6300,
setting for the type of Clamp and available Current ranges on MODEL6300
are as follows.
(For the details of setting procedure, please refer to the instruction manualfor MOEL6300.)
Setting on MODEL6300
Type of Clamp sensor (SETUP : 04)

Current range (SET UP : 03)

3000A

1000A ／ 3000A＊ Range of 300A at KEW8129 isn't available when using the sensor withMODEL6300.
＊ MODEL6300 differs from KEW5010/5020 and doesn't recognize the typeof Sensor or ranges when it is powered on;
above setting is required for precise measurements.
< Result view on MODEL6300 >Mark is displayed on the LCD of MODEL6300 when using 3000A
Therange.

Button on KEW5010＊ Range of the sensor cannot be changed via the/ 5020.
＊ The
Button on KEW5010 / 5020 switches Filter function on / off.