KYORITSU KEW 2413R Manual de usuario

KEW SNAP

Series

KEW 2413R

DIGITAL CLAMP METER

KYORITSU ELECTRICAL INSTRUMENTS

WORKS，LTD.

INSTRUCTION MANUAL

　Contents

１．Safety Warnings ………………………………………………………１

２．Features ………………………………………………………………４

３．Specifications …………………………………………………………５

４．Instrument Layout ……………………………………………………９

５．Operation

　５-１　Preparation ……………………………………………………11

　５-２　AC Current Measurement ……………………………………11

　５-３　How to Use Peak Hold Function ……………………………14

　５-４　How to Use The Frequency Selector Switch ………………16

　５-５　How to Use Data Hold Function ………………………………17

　５-６　How to use Back Light …………………………………………17

　５-７　

Analogue Output How to Use Model 7073 Output Cord

……18

６．Battery Replacement …………………………………………………19

７．Cleaning ………………………………………………………………20

８．Before Sending For Repair …………………………………………21

—

　１．Safety Warnings

This instrument has been designed and tested according to IEC

Publication 61010: Safety Requirements for Electronic Measuring

Apparatus. This instruction manual contains warnings and safety rules

which must be observed by the user to ensure safe operation of the

instrument and retain it in safe condition. Therefore, read through these

operating instructions before starting using the instrument.

●The symbol

indicated on the instrument means that the user must

refer to related parts in the manual for safe operation of the

instrument. Be sure to carefully read the instruction following each

symbol in this 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 bodily injury or instrument damage.

WARNING

●Read through and understand instructions contained in this

manual before starting using the instrument.

●Save and keep the manual handy 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.

　Failure to follow the instructions may cause injury, instrument

damage and/or damage to equipment under test. Kyoritsu is by

no means liable for any damage resulting from the instrument in

contradiction to this cautionary note.

—

Following symbols are used on the instrument and in the instruction

manual. Attention should be paid to each symbol to ensure your safety.

#Refer to the instructions in the manual.

This symbol is marked where the user must refer to the instruction

manual so as not to cause personal injury or instrument damage.

Indicates an instrument with double or reinforced insulation.

Indicates that this instrument can clamp on bare conductors when

measuring a voltage corresponding to the applicable Measurement

category, which is marked next to this symbol.

This instrument satisfies the marking requirement defined in the

WEEE Directive (2002/96/EC). This symbol indicates separate

collection for electrical and electronic equipment.

DANGER

●Never make measurement on a circuit above 300V AC (CAT. Ⅲ).

●

Do not attempt to make measurement in the presence of

flammable gasses, fumes, vapor or dust. Otherwise, the use of the

instrument may cause sparking, which can lead to an explosion.

●Transformer jaw tips are designed not to short the circuit under

test. If equipment under test has exposed conductive parts,

however, extra precaution should be taken to minimize the

possibility of shorting.

●

Never open the battery compartment cover when making measurement.

●

Never attempt to use the instrument if its surface or your hand is wet.

●

Do not exceed the maximum allowable input of any measurement range.

●Never try to make measurement if any abnormal conditions, such

as broken Transformer jaws or case is noted.

●The instrument is 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.

●

Keep your fingers and hands behind the barrier during measurement.

WARNING

●Never attempt to make any measurement if any abnormal

conditions are noted, such as broken case, cracked test leads

and exposed metal parts.

●Do not install substitute parts or make any modification to the

instrument. Return the instrument to Kyoritsu or your distributor

for repair or re-calibration.

●Do not try to replace the battery if the surface of the instrument is wet.

—

CAUTION

●Do not expose the instrument to the direct sun, extreme

temperatures or dew fall.

●Be sure to set the function selector switch to the “OFF”position

after use. When the instrument will not be use for a long period of

time, place it in storage after removing the battery.

　This is to avoid damage to the instrument by possible leakage

from the battery.

●Use a damp cloth and detergent for cleaning the instrument. Do

not use abrasives or solvents.

●This instrument isn't dust & water proofed. Keep away from dust

and water.

●Never apply voltage to the OUTPUT terminal. the terminal is not

electrically isolated from the internal circuits of the instrument.

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 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 : 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

KEW 2413R is a unique digital clamp meter for both very low current

and high current measurements. Its shielded transformers jaws

minimizes the effect of external stray magnetic field, enabling leakage

current measurements.

●Measures from 0.1mA to 1000A AC and provides frequency response

higher than 1kHz on all measuring ranges.

　Measurements also possible with approximately -7% accuracy at 20

kHz on 200mA range.

●Provides a frequency selector switch —50/60Hz or WIDE —to turn

on or off an incorporated low pass filter. This permits current

measurement in mains fundamental frequency only or a wide range

of frequencies, including those from such devices as inverters.

●Peak-hold facility with selectable response time of 10ms or 100 ms.

●Two-way analogue output terminal

　Provides AC voltage output proportional to the current under test for

monitoring the waveform with an oscilloscope.

　Also convent AC current readings to DC voltage output for direct

connection to such devices as a chart recorder.

●Data hold function to allow for easy readings in hard-to-reach

locations. Display can be observed away from the conductor.

●LCD Back Light function to facilitate working at dimly lit situations.

—

　３．Specifications

Measuring Ranges and Accuracy

● AC Current

Ranges

200mＡ

2Ａ

20Ａ

200Ａ

1000Ａ

0〜199.9mA

CF≦3.0

0〜1.999A

CF≦3.0

0〜19.99A

CF≦3.0

0〜199.9A

CF≦3.0

0〜500A

CF≦3.0

501〜1000A

CF≦3.0

Accuracy

Frequency Range Response

50/60Hz

* only sine wave

WIDE

* Add 2% at CF ≧ 2

±1.8％rdg±5dgt (50／60Hz)

±3.0％rdg±5dgt (40〜1kHz)

±2.0％rdg±5dgt (50／60Hz)

±3.5％rdg±5dgt (40〜1kHz)

±5.0％rdg (50／60Hz)

±3.0％rdg±5dgt

± 5.5％ rdg

10min.

Time Limit for

Measurements

Continuous

● Effective Value (RMS)

Most alternating currents and voltages are expressed in effective

values, which are also referred to as RMS (Root-Mean-Square) values.

The effective value is the square root of the average of square of

alternating current or voltage values. Many clamp meters using a

conventional rectifying circuit have "RMS" scales for AC measurement.

The scales are, however, actually calibrated in terms of the effective

value of a sine wave though the clamp meter is responding to the

average value. The calibration is done with a conversion factor of 1.111

for sine wave, which is found by dividing the effective value by the

average value. These instruments are therefore in error if the input

voltage or current has some other shape than sine wave.

●

CF (Crest Factor) is found by dividing the peak value by the effective value.

Examples: Sine wave: CF=1.414

Square wave with a 1: 9 duty ratio: CF=3

—

Range

200mA

20A

200A

1000A

Measuring Range

0〜200mA

0〜2A

0〜20A

0〜200A

0〜500A

501A〜1000A

AC Output Voltage

Accuracy

0〜200mV

±2.0％rdg±0.5mV

±2.5％rdg±0.5mV

±3.0％rdg±0.5mV

±5.0％rdg±0.5mV

0〜50mV

50〜100mV

Analogue Output (Output impedance: Approx. 1k Ω )

● AC Output

*Voltage proportional to the current under test is output with

“WIDE”frequency characteristics regardless of the setting of the

frequency Selector or peak hold switch.

● DC Output

*DC voltage is output in proportion to the display reading, which

reflects frequency selector or peak hold switch position −200mV

DC for 2000 count reading.

200mA

20A

200A

1000A

0〜200mA

0〜2A

0〜20A

0〜200A

0〜500A

501A〜1000A

Ranges

AC Input

Current

DC Output

Voltage

Accuracy (Frequency　Range)

Freq. Selector

Switch at

WIDE position

Freq. Selector

Switch at 50/60Hz

position

〜

200mV

±3.0％rdg±0.5mV

±3.5％rdg±0.5mV

±5.0％rdg±0.5mV

±7.0％rdg±0.5mV

3.5

％

rdg

0.5mV

± 4.0

％

rdg

0.5mV

± 5.5

％

rdg

0.5mV

± 7.5

％

rdg

0.5mV

〜

50mV

50〜100mV

—

Operating System ：Dual Integration

Display ：Field effect 3・1/2 digit liquid crystal

display with maximum count of 1999

Range selection ：Manual

Overrange Indication ： “ 1”is displayed on the highest digit

except for 1000A AC range.

Response Time ：Approx. 3 seconds

Sample Rate ：Approx. 3 times per second

Data Hold ：Available on all ranges

Location for use ：Indoor use, Altitude up to 2000m

Temperature ＆ Humidity ：23℃

５℃ , relative humidity up to 85%

for Specified Accuracy 　without condensation

Storage Temperature ：-20〜60℃, relative humidity up to 80%

& Humidity 　without condensation

Operating Temperature ：0 〜40℃,relative humidity up to 85%

& Humidity 　without condensation

Power Source ：One 6 F22 or equivalent battery

Low Battery Warning ：

“ ” symbol is shown on the display.

Current Consumption ：

Approx. 5mA max.(use Back Light:8mA max.)

Standard(Safety) ：IEC61010-1

IEC61010-2-032

CAT Ⅲ,AC300V,Pollution degree 2

(EMC) ：IEC61326-1

Environmental Standards ：EU RoHS Directive compliant

Overload Protection ：1500A AC max for 1 minute

Withstand Voltage ：

3470V AC for 5 seconds between electrical

circuit and housing cases

Insulation Resistance ：50M Ωor greater at 1000V between

electrical circuits and housing cases or

metal parts of jaws

Conductor Size ：Approx. 68mm diameter max.

Dimensions/Weight ：250(L)

130(W)

50(D)mm.

　Approx. 600g (including battery)

Accessories ：6F22 battery

　Carrying case

　Instruction manual

Optional Accessories ：Model 7073 two-way output cord

Peak Hold ：Response time selectable from approx.

10ms and 100ms.

　1/ √2 of the peak current is displayed,

which means an RMS reading will be

obtained when current having sinusoidal

waveform in measured.

Peak hold reading varies by approximately

1% max of full scale in the first minute at

23℃

５

℃and relative humidity of 75%

without condensation.

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