Kyoritsu Electrical Instruments Works, Ltd. KEW SNAP Series, KEW SNAP 2413F Instruction Manual

KEWSNAP

Series

KEWSNAP2413F

DIGITALCLAMPMETER

KYORITSUELECTRICALINSTRUMENTS
WORKS，LTD.

INSTRUCTIONMANUAL

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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 Analogue Output How to Use Model 7073 Output Cord …17
６．Battery Replacement …………………………………………………19
７．Cleaning ………………………………………………………………20
８．Before Sending For Repair …………………………………………21

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―1―

１．SafetyWarnings

Make sure to read through this instruction manual before using this
instrument.

●The instrument has been designed, manufactured, and tested

according to:

IEC 61010, pollution degree2, CAT．Ⅲ, 300V
IEC 61010, pollution degree2, CAT．Ⅱ, 600Ｖ

This instruction manual contains warnings and safety rules which
must be observed by the use to ensure safe operation of the
instrument and to retain it in safe condition.

●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.

●In order to avoid injury, or damage to the instrument or the circuit

under test, be sure to understand and follow all safety
instructions contained in the manual.

●Be sure to use the instrument only in its intended applications

and to follow measurement procedures described in the manual.

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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.

DANGER

●Never make measurement on a circuit above 600VAC.

●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.

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.

―2―

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―3―

CAUTION

●Make sure that the function selector switch is set to an

appropriate position before making measurement.

●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.

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

temperatures or dew fall.

●Placing the instrument in temperatures of 50℃ or higher can

cause the instrument's case to deform and result in operation
failures.

●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, IEC61010
establishes safety standards for various electrical environments,
categorized as CATⅠ to CATⅣ , and called measurement
categories. Higher-numbered categories correspond to electrical
environments with greater momentary energy, so a measuring
instrument designed for CATⅢ environments can endure greater
momentary energy than one designed for CATⅡ.

CAT Ⅰ : Secondary electrical circuits connected to an AC electrical

outlet through a transformer or similar device.

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 over-current
protection device (distribution panel).

Incoming wire

CAT.IV

Interior wiring

Transformer

CAT.I

CAT.II

CAT.III

S

ocke

t

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―4―

KEW SNAP 2413F 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 or measuring RMS

current values with a true-RMS-reading instrument.

Also convent ACA 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.

２．Features

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―5―

MeasuringRangesandAccuracy

●ACCurrent

３．Specifications

※Refer to Figure 1 for frequency characteristics.

●Effect of External Stray Magnetic Field

10mA AC max. in proximity to a 10mm-dia conductor carrying 100A
AC.

●Effect of Residual Current

10mA AC max. when clamping on two 10mm-dia conductors, each
carrying supply or return 100A AC current.

Ranges

200mＡ

2Ａ

20Ａ

200Ａ

1000Ａ

0〜199.9mＡ

0〜1.999Ａ

0〜19.99Ａ

0〜199.9Ａ

0〜500Ａ

501〜1000Ａ

Accuracy

FrequencyRangeResponse

50/60HzWIDE

±1.0％rdg±2dgt

（50/60Hz）

±3.0％rdg±2dgt

（40〜１kHz）

±1.5％rdg±2dgt

（50/60Hz）

±3.5％rdg±2dgt

（40〜１kHz）

±1.5％rdg±2dgt

（50/60Hz）

±3.5％rdg±2dgt

（40〜１kHz）

±5％rdg

（50/60Hz）

±10％rdg

（40〜１kHz）

±1.5％rdg±2dgt

±2.0％rdg±2dgt

±2.0％rdg±2dgt

±5.5％rdg 10min.

TimeLimitfor
Measurements

Continuous

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