Kyoritsu KEW 8161 Bedienungsanleitung

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INSTRUCTION MANUAL

CLAMP SENSOR Series

KEW 8161

CLAMP SENSOR

1. Safety warnings

○This instrument has been designed, manufactured and tested

according to IEC 61010-1: 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.

#

DANGER

●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,

instrument damage and/or damage to equipment under test.

KYORITSU is not liable for any damage resulting from the

users mishandling of the instrument.

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.

#

DANGER

●Never make measurement on a circuit in which the electrical

potential exceeds AC300V.

●Verify proper operation on a known source before use or

taking action as a result of the indication of the instrument.

●Do not make measurement when thunder rumbling. If the

instrument is in use, stop the measurement immediately and

remove the instrument from the equipment under test.

●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.

●Use insulated protective gears, such as insulated gloves, for

your safety when possible electric shock hazards are

concerned.

●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 use this instrument when its surface or your hand is

wet. Do not wet the output terminal because it is not dust/

waterproof.

●Do not exceed the maximum allowable input of any

measuring range.

#

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.

#

CAUTION

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

cord from being damaged.

●The output terminal 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 with water and neutral detergent for

cleaning the instrument. Do not use abrasives or solvents.

●This instrument is not designed to be dust or waterproof. Do

not use it dusty places or where the instrument is likely to be

wet.

 It may cause troubles on the instrument.

●Never pinch foreign matters or give vibrations at the jointed

parts of this instrument. Otherwise, matching area of Jaws

may be damaged and cause influences on the

measurements.

●Do not bend or pull the root of the cable in order to prevent

breaks in the cable.

●Accurate measurement may not be obtained in the vicinity

of strong magnetic fields such as transformers, high-current

circuits or wireless machines.

Safety symbols

#

Refer to the instructions in the manual.



Indicates a 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.



Indicates AC

Crossed-out wheel bin symbol (according to WEEE

Directive: 2002/ 96/ EC) indicating that this electrical

product may not be treated as household waste, but

that it must be collected and treated separately.

O: Device which is

not directly

connected to the

mains power supply

Measurement Category:

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

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

entrance, and to the power meter and primary over-

current protection device (distribution panel).

2. Features

●Clamp sensor for AC current measurement.

●Designed to international safety standard IEC61010-2-032

 CAT III 300V Pollution Degree 2

3. Instrument layout

Barrier: provides protection against electrical shock and ensuring

the minimum required air and creepage distances.

4. 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.

●Do not force to open the Transformer jaws when they are

frozen.

●When making current measurements, keep the transformer

jaws fully closed. Otherwise, accurate measurements

cannot be taken. Maximum conductor size is approx

φ24mm.

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

the Output terminal from the measuring instrument so as not

to cause a break in the cord.

Measurement procedures

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

measuring instrument.

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

onto one conductor. Clamped conductor should be at the

center of the closed transformer jaws.

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

5. Specifications

ModelKEW 8161

Rated currentAC100Arms(141Apeak)

Output voltage

AC0～1000mV

(AC1000mV/AC100A):10mV/A

Measuring range

AC0～100A

Accuracy

(Input: sine wave)

±2.0%rdg±3.0mV (45～65Hz)

±2.5%rdg±3.0mV (65～1kHz)

Temperature &

humidity range

(Guaranteed

accuracy)

23±5ºC, relative humidity: 85% or less

(no condensation)

Operating

temperature &

humidity range

-10~ 50ºC, relative humidity: 85% or

less (no condensation)

Storage

temperature &

humidity range

-20 ~ 60ºC, relative humidity: 85% or

less (no condensation)

Maximum

permissible input

AC100Arms

Output impedance22Ω or less

Location for useAltitude up to 2000m, Indoors

Applicable

standards

IEC 61010-1, IEC 61010-2-032

Measurement CAT. III (300Vrms)

Pollution degree 2

IEC 61326-1,2-2

EN50581

Withstand voltageAC3470Vrms (50/60Hz)for 5 sec.

between Jaw and enclosure

between enclosure and output terminal

between Jaw and output terminal

Insulation

resistance

50MΩ or greater at 1000V

between Jaw and enclosure

between enclosure and output terminal

between Jaw and output terminal

Conductor SizeApprox.24mm in diameter (max.)

Dimension97(L)×59(W)×26(D)mm

Cable lengthApprox. 1.2m

WeightApprox. 120g

AccessoriesInstruction manual

MEMO

Transform Jaws

Barrier

Trigger

Cable

Output Terminal

φ4mm

Banana Plug

Conductor

15-06 92-2248

DISTRIBUTOR

Kyoritsu reserves the rights to change specifications or designs

described in this manual without notice and without obligations.

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