Kyoritsu KEW 8115 Manual de Usario

Kyoritsu Equipo de medición KEW 8115

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Safety Symbols

#Refer to the instructions in the manual.



Indicates instrument with double or reinforced insulation.

Indicates that this instrument can clamp on live bare

conductors when the voltage to be tested is below

Circuit - Ground-to-Earth voltage against the indicated

Measurement Category.

AC

DC

This instrument satisfies the marking requirement

defined in the WEEE Directive. This symbol indicates

separate collection for electrical and electronic

equipment.

○ Measurement Category

To ensure safe operation of measuring instruments, IEC 61010

establishes safety standards for various electrical environ-

ments, 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 environments can endure greater

momentary energy than one designed for CAT.II.

O : Circuits which are not directly connected to the mains

power supply.

CAT.II : 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

en tr anc e, an d to th e po wer m ete r an d p rim ary

overcurrent protection device (distribution panel).

# DANGER

● Never make measurement on a circuit in which the electrical

potential exceeds 300V in order to avoid possible shock

hazard.

● Do not make measurement when thunder is 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.

● Put insulated protective gears when there is a danger of

electrical 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.

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

hand is wet.

Otherwise, electrical shock accident may occur.

● Do not exceed the maximum allowable input of any measuring

range.

● Never open the battery compartment cover and the instrument

case when making a measurement.

● The instrument is to be used only in its intended applications

or conditions. Otherwise, safety functions equipped with the

instrument doesn’t work, and instrument damage or serious

personal injury may be caused.

# 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 your local Kyoritsu

distributor 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.

● Do not try to replace batteries if the surface of the instrument

is wet.

Power off the instrument before opening the Battery

Compartment Cover for a battery replacement.

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.

● 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.

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.

# WARNING is reserved for conditions and actions that can

cause serious or fatal Injury.

# CAUTION is reserved for conditions and actions that can

cause minor injury or instrument damage.

# CAUTION

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

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.

● Do not use this instrument in dusty place and where the

instrument is likely to get wet.

● Power off the instrument after use. Remove the batteries if

the instrument is to be stored and will not be in use for a long

period.

● 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.

● 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.

● Do not open the jaws by force when transformer jaws are

frozen.

● Hold the inserting part (except for the cord) and disconnect

the Output Connector from the measuring instrument so as

not to cause a break in the cable.

2．Features

● Clamp sensor for AC/DC current measurements

● Designed to meet the international safety standard

IEC61010-2-032 CAT.III 300V, Pollution degree 2

3．Instrument layout

One press of the Power Switch powers on the instrument and the

green LED lights up. Another press of the Power Switch powers

off the instrument. The instrument is automatically powered off

in about 20 min after the last switch operation. (Auto-power-off

Function)

Keep the Power Switch pressed down at least 3 sec and power

on the instrument. Then the red LED lights up and the Auto-

power-off Function doesn’t activate when 20 min pass after the

last switch operation.

4．Specification

Model KEW8115

Measuring Range AC0.1 130Arms〜

(185Apeak) DC0 180A〜

Output voltage AC/DC 10mV/A

Accuracy

(Input: sine wave)

(*1)

50/60Hz:

±(1.2%rdg+0.4mV)

40 1kHz:〜

±(2.5%rdg+0.4mV)

±(1.2%rdg+0.4mV)

(*2)

Temperature & humidity range

(Guaranteed accuracy)

23±5ºC, relative humidity 85% or less

(no condensation)

Operating temperature

& humidity range

-10 55 ºC , relative humidity 85% or less 〜

(no condensation)

Storage temperature &

humidity range

-30 70 ºC , relative humidity 85% or less 〜

(no condensation) (*3)

Temperature coefficient

(Accuracy at 23±5℃×±0.1%rdg)/℃ should be added.

(Temperature ranges: -10 to 18℃ and 28 to 55℃)

Output impedance Approx 10Ω or less

Location for use Altitude 2000m or less, indoor use

Applicable standards

IEC 61010-1 CAT. III 300V, Pollution degree 2

IEC 61010-2-032

IEC 61326-1(EMC), EN50581(RoHS)

Withstand voltage

AC3470V (RMS 50/60Hz) for 5 sec

between Jaw and enclosure

between enclosure and output terminal

between Jaw and output terminal

Insulation resistance

10MΩ or more/1000V

between Jaw and enclosure

between enclosure and output terminal

between Jaw and output terminal

Power source DC3V (size AAA alkaline battery LR03×2pcs)

Auto-power-off

Approx 20 min after powering on the instrument

Low battery warning 2.2±0.2V or less(*4)

red LED flash

Current consumption 25mA or less (battery voltage 3V)

Continuous use Approx 40 hours

Conductor size Max φ12mm

Cord length Approx 120cm

Dimension 127(L)×42(W)×22(D)mm

Weight Approx 140g

Accessories Instruction manual, battery, Soft case

(*1) Under the EMC environment, the instrument temporally

reads errors due to the influences of electrical magnetic

fields (about 15mV at 3V/m). Declared accuracy is

guaranteed when a conductor under test is at the center of

the Transformer jaws.

(*2) This instrument doesn’t have Zero Adjustment Function.

This accuracy is defined after a zero-adjustment by using

the device connected with this instrument. It is advisable to

do Zero adjustment before making measurements because

zero value may vary due to temperature change.

(*3) without batteries

(*4) powers off automatically at 1.9±0.2V or less

Instrument works properly even while Low battery indicator

is flashing.

5．Measurement

(1) Press the Power Switch to power on the instrument. The

green LED lights up. (*5)

(2) Connect the output terminal to the input terminal of the

measuring instrument.

(3) Press the trigger to open the transformer jaws, and clamp

onto a conductor.

(4)

Confirm that the tips of the transformer jaws are surely closed.

(5) Start a measurement. The measured conductor should be at

the center of the jaws. (*6)

(6) The measured result is displayed on the connected

measuring instrument.

(*5) Keep the Power Switch pressed down at least 3 sec and

power on the instrument to disable the Auto-power-off

Function. In this case, the red LED lights up after powering

on the instrument.

(*6) Triangle marks on the Transformer Jows showing the center

of the Jaws.

* Currents flowing from the top side (side with the Power

switch) to the bottom side (Battery Compartment Cover) are

positive, the ones flowing from the bottom side to the top side

is negative.

* Max conductor size for KEW8115 is max φ12mm. Accurate

measurements cannot be taken on conductors thicker than

above size since the transformer jaws don’t fully close.

Do not give big shocks, when opening / closing tranformer jaws.

6．Battery Replacement

Replace the batteries when a low batter indicator (red LED)

flashes on the LCD.

(1) Press the Power Switch and power off the instrument.

(2) Loosen 1 screw at the bottom side of the instrument to

remove the Battery Compartment Cover.

(3) Replace the batteries with new ones.

(size AAA alkaline battery : LR03×2 pcs)

(4) Install the Battery Compartment Cover and tighten the

screws.

# WARNING

● Do not try to replace batteries when making a measurement

to avoid electric shock hazard.

# CAUTION

● Do not mix batteries of different types or new batteries with

used ones.

● Make sure to install batteries in correct polarity as indicated in

the battery compartment.

Instruction Manual

AC/DC Clamp Sensor

KEW 8115

Incoming wire

Ｏ:Device which is

not directly

connected to the

mains power supply

Socket

Interior wiring

LED

Transformer Jaw

Barrier

Trigger

Output Terminal

Power switchi

Cord

Green Light : power on

Red Light : no Auto-power-off Function

Red Flash : Low battery warning

φ4mm

Banana Plug

（　　

）

7-16 92-1969D

DISTRIBUTOR

Kyoritsu reserves the rights to change specifications or designs

described in this manual without notice and without obligations.

Battery Compartment Cover

Screw

Conductor

Current direction

arrow

Especificaciones del producto

Marca:	Kyoritsu
Categoría:	Equipo de medición
Modelo:	KEW 8115

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