Kyoritsu 2300R User Manual download pdf

Fork Jaws

Function Selector Switch

Data Hold / Zero Adjustment Button

Hand Strap

Display

Low Battery Warning

AC/DC

NCV Range

Data Hold Mode

Unit

Place the center of the

measured conductor lower

than the triangle mark indicated

on the fork shaped sensor.

(shaded part in the figure)

3. Specification

AC current ∼A

DC current A

AC voltage ∼V

Note) NCV range is calibrated to detect the voltage, where non-grounded single wire,

AC80V or more. However, detecting sensitivity may be affected by the absence of

grounded or non-grounded metal tube or metal case. Also it may be affected in the

place where influenced by other voltages, how you grip the instrument or the

measuring position of sensor.

●CF(Crest Factor) CF=2.5 or less

●Standards IEC61010-1

Overvoltage CATIII 300V, pollution degree 2

IEC61010-2-032

IEC61326 (EMC standard)

●Indication LCD Max. 1049 units, symbols

●Over range display "OL" symbol is displayed on the LCD.

(Only on current range)

●Response time Approx. 2sec.

●Sampling rate Approx. twice per second

●Temperature &

Humidity range

(guaranteed accuracy) 23℃±5℃

Relative humidity: 75% or less (no condensation)

●Operating Temperature &

Humidity range 0 ∼ 40℃

Relative humidity: 85% or less (no condensation)

●Storage Temperature &

Humidity range -20 ∼ 60℃

Relative humidity: 85% or less (no condensation)

●Power source DC3V : R03(UM-4)x2pcs

●Current consumption Approx.12mA or less

To decrease current consumption, detecting circuit is on only

for 0.1/0.5sec.

●Power off function Power off function operates automatically after a switch

remains for 10min.

●Overload Protection AC/DC current : AC/DC 120A/ 10sec.

AC voltage (NCV) : AC360V/ 10sec.

●Withstand Voltage AC3700V/ for one min.

(Between electrical circuit and enclosures.)

●Insulation Resistance 10MΩ/1000V

(Between electrical circuit and enclosures.)

●Max. diameter of

measured object Max. 10mm

●Dimensions 161.3(L) x 40.2(W) x 30.3(D) mm

●Weight 110g(including batteries)

●Accessories Battery R03 --------------------- 2

Instruction manual ------------- 1

Carrying case ------------------- 1

Instruction Manual

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 to retain it in safe condition. Therefore, read through

these operating instructions before starting using the instrument.

WARNING

●Read through and understand instructions contained in this manual before starting

to use the instrument.

●Save and keep the manual handy to enable quick reference whenever necessary.

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

●Be sure to understand and follow all safety instructions contained in the manual.

Be sure to observe above instructions.

Failure to follow the above instructions may cause injury, instrument damage and/or damage to

equipment under test.

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 instructions 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 minor injury or

instrument damage.

DANGER

●Never make measurement on the circuit above AC/DC300V.

●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.

●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.

●Do not open the battery cover and the instrument case when making measurement.

WARNING

●Never attempt to make any measurement, if the instrument has any structural abnormality

noted, such as cracked case or 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 batteries if the surface of the instrument is wet.

●Always switch off the instrument before opening the battery compartment cover for battery

replacement.

CAUTION

●Always make sure to check the function selector switch is set to the appropriate range before

starting measurement.

●Do not expose the instrument to the direct sun, high temperature and humidity or dewfall.

●Be sure to set the function selector switch to the "OFF" position after use. When the instrument

will not be in use for a long period, place it in storage after removing the batteries.

●Use a cloth dipped in water or neutral detergent for cleaning the instrument. Do not use

abrasives or solvents.

Reference

*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: 4 duty ratio: CF=2

5. Preparation

(1) Check battery voltage

Set the Function selector switch to the position other than OFF position.

Battery Voltage is enough if indications are displayed clearly and "BATT" mark is not

displayed on the LCD. If "BATT" mark is indicated or no indication on the LCD, replace

batteries with new one according to battery replacement procedures shown in clause 8

in this document.

CAUTION

●Indications may not being displayed on the LCD despite the function selector switch

is at the position other than OFF position.

This is because power-off function operated automatically and the instrument turned off.

Power off function can be released by turning the function selector switch to OFF,

and then set it to the range on which you would like to make a measurement.

If LCD still blank, batteries are completely exhausted. Please replace batteries.

(2) Check the function selector switch is set to the appropriate range. And also check data

hold function is not enabled. If inappropriate range is selected, desired measurement

cannot be made.

6. Measurements

6-1 Current Measurement

DANGER

●To avoid getting an electrical shock, never make measurement on the circuit in

which electrical potential over AC/DC300V exists.

●Do not make measurement with battery cover removed.

CAUTION

●Max. diameter of measured object(conductor) is Φ10mm.

6-1-1 DC current measurement

(1) Set the function selector switch to " A" position.

(" " and "A" marks will be displayed on the LCD.)

(2) Press HOLD/0ADJ button for 2sec or more to enable 0ADJ function and adjust the

indication on the LCD to be 0.

(Indication shall be adjusted to 0. Otherwise, error occurs.)

(3) Place one measured conductor lower than the triangle mark indicated on the fork

shaped sensor and make a measurement. (shaded part in the figure)

Then measured value is displayed on the LCD.

(When the center of the conductor is not lower than the triangle mark indicated on the

fork shaped sensor, error occurs.)

Note) When current is flowing from the upside to the underside of the instrument, reading

is positive(+), on the contrary, reading to be negative(-) when current is flowing from

the underside to the upside of the instrument.

6-1-2 AC current measurement

(1) Set the function selector switch to "∼A" position.

("∼" and "A" marks will be displayed on the LCD.)

(2) Place one measured conductor lower than the triangle mark indicated on the fork

shaped sensor and make a measurement. (shaded part in the figure)

Then measured value is displayed on the LCD.

(When the center of the conductor is not lower than the triangle mark indicated on the

fork shaped sensor, error occurs.)

(1) 100V mode

Sensitivity on this mode is set sharp, therefore, the presence of AC voltage can be

checked only by placing the instrument closer to the measured object, such as an

outlet, a plug and parallel cords, as shown in figure.

(2) 200V mode

Sensitivity on this mode is set dull, so the earth side and non-earth side of 100V cable

way can de verified. (Where cables are crowded, such as in a distribution board, earth

side could not be verified.)

Also can check the presence of AC voltage in 200V cable way, plug, outlet, fuse and

circuit breaker.

7. Other functions

7-1 Auto power off function

This function causes the instrument to automatically enter the power-off mode about

10min after the last function selector switch operation.

To release the power-off function, turn off the instrument and then turn on again.

7-2 Data hold function (Only on ACA/DCA range)

This is a function to hold the measured value on the LCD. "H" mark is shown on the

LCD while the instrument is in the data hold mode. To exit the data hold mode, press

the data hold button again.

Note) The measured value being held will be released when auto power-off function

operates while data hold function is operating.

8. Battery replacement

WARNING

●To avoid getting electrical shock, be sure to set the function selector switch to

"OFF" position before trying to replace the batteries.

CAUTION

●Do not mix new and old batteries.

●Make sure to install battery in correct polarity as indicated inside the battery cover.

When "BATT" mark is shown on the upper left corner of the LCD, replace the batteries.

Note that the battery is completely exhausted, the LCD blanks without "BATT" mark

shown.

(1) Se the function selector switch to "OFF" position.

(2) Unscrew the battery cover fixing screws and remove the battery cover on the bottom of

the instrument. Then replace new batteries. (R03 x 2pcs)

Range

ACA

Measuring range

０∼100A

Accuracy

±2.0％rdg±５dgt（50／60Hz）

±3.0％rdg±５dgt（50／60Hz）

CF(Crest factor)

CF≦２

２＜CF≦2.5

Range

DCA

Measuring range

０∼±100A

Accuracy

±2.0％rdg±５dgt

Range

NCV

Measuring range

AC300V or less

Action

Normal condition : Lo

At voltage detecting(single wire AC80V or more) : Hi

―

1556A03

―

KYORITSU ELECTRICAL INSTRUMENTS

WORKS, LTD.,

Note) For the measurement of AC current, zero adjustment, which is required for the

measurement of DC current, is not necessary. Current flowing direction has no

relation to the indication polarity.

6-2 Non contact voltage detection(NCV)

This function is to check the presence of voltage without touching wires or electrodes

directly.

Also can check the presence of AC voltage in cable, outlet, fuse and circuit breaker.

[Details]

While voltage is applied to a cable or outlet, the electric field depending on the voltage

is generated. This instrument detects the generated electric field, and verifies the

presence of AC voltage. Officially, it is called as an instrument for detecting electrical

field. But it is not a familiar term, so we call it as "Non contact voltage detection".

General detectors detect voltage by contacting polarized voltage(contacts and

terminals). But this instrument is developed to satisfy this function and for safety

purpose without contacting voltage.

DANGER

●To avoid getting an electrical shock, never make measurement on the circuit in

which electrical potential over AC/DC300V exists.

●Before a measurement, be sure to check the instrument operation with well-known

power supply. If "Err" is displayed on the LCD, do not make a measurement.

●Do not make measurement with battery cover removed.

●Indication on NCV range is a reference value. Make sure to check the voltage with a

precise equipment in advance when operator will directly touch or connect wires.

●Indication of voltage may be affected by non-grounded metal tube or metal case, the

place where affected by other voltages, handgrip or the measuring position of sensor.

6-2-1 Measurements

(1) Set the function selector switch to "NCV" position.

(2) The sensing mode (100V or 200V) in effect is displayed on the LCD for 1min, and NCV

measurement starts.

(3) Position the tip part of fork typed sensor against the measured object.

When voltage is detected, "Hi" will be displayed on the LCD.

(Error could occur depending on the direction, angle and contact surface of the

instrument against the measured object. On NCV range, data hold function cannot be

used.

)

Note) When set the function selector switch to NCV range, self-check function operates

and Indicates "Err", if there is some fault or abnormal condition. Do not make a

measurement if such indication displayed on the LCD.

6-2-2 Sensing mode

●There are two types of sensing mode: 100V mode and 200V mode.

●Above two modes can be changed over by pressing the data hold button 2sec or more.

(The selected sensing mode is stored even if switching off the instrument. When setting

the function switch to "NCV" again, measurement can be done on the same mode.)

●Factory setting : 200V mode

4. INSTRUMENT LAYOUT

DISTRIBUTOR

Kyoritsu reserves the rights to change specifications or

designs described in this manual without notice and without

obligations.

AC/DC FORK CURRENT TESTER

MODEL 2300R

KEW FORK

rre

Wrong

2. Features

●This instrument, Fork current tester, can measure AC/DC current up to 100A without

opening and closing the Jaws.

●True RMS reading for AC current

●Fork shaped sensor for easy measurement at tight places and crowded cable areas.

●NCV function (Non Contact Voltage) enables live wire check

●Auto power off function

●Data hold function

●Pocket size handy tester, adopted over-molding for a better fit

●Carrying case furnished as a standard accessory.

●Designed to international safety standards.

IEC 61010-2-032 overvoltage CAT.III 300V Pollution degree 2

KEW FORK 1

Summary of Contents

Page 1 - KEW FORK

Fork JawsFunction Selector SwitchData Hold / Zero Adjustment ButtonHand StrapDisplayLow Battery WarningAC/DCNCV RangeData Hold ModeUnitPlace the cente

Kyoritsu 2300R User Manual

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Kyoritsu 2300R User Manual

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