Kyoritsu 8128 Manual

Kyoritsu Måleudstyr 8128

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Side 1/1

INSTRUCTION MANUAL

MODEL 8128

POWER CLAMP SENSOR

Series

POWER CLAMP SENSOR

1. Safety warnings

○ This instrument has been designed, manufactured and

tested according to IEC 61010: Safety requirements

for Electronic Measuring apparatus, and delivered in

the best condition after passing quality control tests.

This instruction manual contains warnings and safety

rules which have to be observed by the user to ensure

safe operation of the instrument and to maintain it in

safe condition. Therefore, read through these operating

instructions before using the instrument.

# 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.

　 The operating instructions described in the manual

must be observed.

● 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 and or

instrument damage.

Kyoritsu is by no means liable for any damage

resulting from the instrument in contradiction to this

cautionary note.

○ The symbol indicated on the instrument, means that #

the user must refer to the related parts in the manual

for safe operation of the instrument. It is essential to

read the instructions wherever the symbol appears #

in the manual.

# DANGER　 is reserved for conditions and actions

that are likely to cause serious or

fatal injury.

# 　 is reserved for conditions and actions WARNING

that can cause serious or fatal Injury.

# CAUTION　 is reserved for conditions and actions

that can cause minor injury or

instrument damage.

# DANGER

● Never make measurement on a circuit in which the

electrical potential exceeds AC300V.

● Do not make measurement when thunder rumbling. If

the instrument is in use, stop the measurement

immediately and remove the instrument from the

measured object.

● Do not attempt to make measurement in the

presence of flammable gasses. Otherwise, the use

of the instrument may cause sparking, which can

lead to an explosion.

● The transformer jaws are made of metal and their

tips are not completely insulated. Be especially

careful about the possible shorting where the

measured object has exposed metal parts.

● Never attempt to use the instrument if it's surface or

your hand are wet.

● Do not exceed the maximum allowable input of any

measuring range.

● Use insulated protective gears, such as insulated

gloves, for your safety when possible electric shock

hazards are concerned.

● Keep your fingers and hands behind the barrier

during a measurement.

# WARNING

● Never attempt to make any measurement, if any

abnormal conditions are noted, such as broken

case, and exposed metal parts.

● Do not install substitute parts or make any

modification to the instrument. Return the

instrument to the distributor from who you

purchased this instrument for repair or re-calibration

in case of suspected faulty operation.

● Always keep your fingers and hands behind the

barrier on the instrument to avoid the possible

shock hazard.

# CAUTION

● Do not step on or pinch the cord to prevent the

jacket of cable from being damaged.

● The output connector shall be removed or

connected without clamping a conductor.

Otherwise, it may cause a failure.

● Do not expose the instrument to direct sunlight,

high temperatures, humidity or dew.

● Never give shocks, such as vibration or drop, which

may damage the instrument.

● Use a damp cloth and detergent for cleaning the

instrument. Do not use abrasives or solvents.

Safety symbols

Refer to the instructions in the manual.



Indicates a Instrument with double or reinforced

insulation

Indicates that this instrument can clamp on bare

conductors.

〜

Indicates AC

○Measurement categories(Over-voltage categories)

To ensure safe operation of measuring instruments, IEC

61010 establishes safety standards for various electrical

environments, categorized as o to CAT IV, and called

measurement categories. Higher-numbered categories

correspond to electrical environments with greater

momentary energy. So a measuring instrument designed for

CAT III enviroments can endure greater momentary energy

than one desined for CAT II.

　O(None, Other): Circuits which are not directly

connected to the mains power supply.

　CAT Ⅱ: Primary electrical circuits of equipment

connected to an AC electrical outlet by a

power cord.

　CAT Ⅲ: Primary electrical circuits of the equipment

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).

O: Device which is

not directly

connected to the

mains power supply

2. Features

●This is a clamp sensor for our Power meter.

● Designed to international safety standard

IEC 61010-2-032

CAT Ⅲ 300V (Pollution Degree 2)

3. Instrument layout

Transform Jaws

Barrier

Trigger

Cable

Output connector

Barrier : It is a part providing protection against electrical

shock and ensuring the minimum required air and

creepage distances.

4. Din plug pin assignment

3: GND pin

5: Output signal pin

6: Sensor signal pin

（Resistance between 3Pin

and 6Pin : 91kΩ）

1, 2 and 4: No use

* Above figure shows the pin assignment seeing the Clamp

sensor from output connector part. The figure of the pin

assignment of connection terminal is symmetrical to above

figure.

5. Specifications

Model 8128

Rated voltage AC5A

Output voltage

10mV/A (AC 50mV/AC 5A)

(AC500mV/AC50A)

Measuring range

AC0 〜 50Arms(70.7Apeak)

Accuracy

(Input: sine wave)

± 0.5%rdg ± 0.1mV (50/60Hz)

± 1.0%rdg ± 0.2mV (40 〜 1kHz)

Phase

characteristics

± 2deg within(at 0.5 〜 50A / 45 〜 65Hz)

Temperature & humidity range

(Guaranteed accuracy)

23 ± 5

℃

, relative humidity: 85% or less (no condensation)

Operating temperature range

0 〜 50℃ , relative humidity: 85% or less (no condensation)

Storage temperature range

-20 〜 60℃ , relative humidity: 85% or less (no condensation)

Maximum permissible input

AC50Arms continuous(50/60Hz)

Output

impedance

Approx. 19

Location for use Altitude up to 2000m, Indoors

Applicable

standards

IEC 61010-1, IEC 61010-2-032

Measurement CAT III (300Vrms)

Pollution degree 2

IEC 61326-1 (EMC)

Environmental

standards

EU RoHS Directive compliant

Withstand

voltage

AC3540Vrms (50/60Hz) for 5 sec.

between Jaw and enclosure

between enclosure and output terminal

between Jaw and output terminal

Insulation

resistance

50M Ω or greater at 1000V

between Jaw and enclosure

between enclosure and output terminal

between Jaw and output terminal

Conductor Size Approx.24mm in diameter (max.)

Dimension 100 x 60 x 26mm

Cable length Approx. 3m

Output terminal MINI DIN 6PIN

Weight Approx. 160g

Accessories

Cable marker

Instruction manual

Accessories

MODEL 7146 (Banana F4 adjuster plug)

MODEL 7185 (Extension cable)

6. Operating instructions

# DANGER

● Never make measurement on a circuit in which the

electrical potential exceeds AC300V in order to avoid

possible shock hazard.

● The transformer jaws are made of metal and their tips

are not completely insulated. Be especially careful

about the possible shorting where the measured object

has exposed metal parts.

# CAUTION

● Take sufficient care to avoid shock, vibration or

excessive force when handling the instrument.

Otherwise, precisely adjusted transformer jaws

will be damaged.

● When transformer jaws do not fully close, never try

to close them by force, but make them free to move

and try again. If a foreign substance is stuck in

the jaw tips, remove it.

● When making current measurements, keep the

transformer jaws fully closed.

　 Otherwise, accurate measurements cannot be

taken. Maximum conductor size is 24mm in

diameter.

● Hold the inserting part (except for the cable) and

disconnect the Output connector from the

measuring instrument so as not to cause a break in

the cable.

6-1 Measurement procedures

(1) Connect the Output connector to the Input terminal of

the measuring instrument.

(2) Press the Trigger to open the transformer jaws and

clamp onto one conductor. In this case, the measured

conductor shall be at the center of the jaws.

When connecting a sensor with a Power meter (our

Power meter, MODEL6300, etc.) match the arrow

mark (Power source to load), which is indicated on

the transformer jaws, with the current flowing

direction in 0order to synchronize the phases of

measured current and output voltage.

(3) Ensure that the tips of transformer jaws are firmly

closed.

Conductor

Load

Current direction

arrow

Power

source

6-2 Setting for MODEL6300 Power meter

(MODEL 6300 is a discontinued product.)

Refer to the table below when using these clamp sensors

with MODEL6300, It shows the settings for clamp sensor

and available current ranges on MODEL6300.

For further details on the settings, see the instruction

manual for MODEL6300.

MODEL

Setting for MODEL6300

Type of

Clamp sensor

Current range

MODEL8128 50A 5 ／ 10 ／ 20 ／ 50A

This instrument satisfies the marking requirement

defined in the WEEE Directive (2002/96/EC).

This symbol indicates separate collection for

electrical and electronic equipment.

1800C5-22

DISTRIBUTOR

Kyoritsu reserves the rights to change specifications or designs

described in this manual without notice and without obligations.

Produkt Specifikationer

Mærke:	Kyoritsu
Kategori:	Måleudstyr
Model:	8128

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