KYORITSU 2001 User Manual

Digital multimeter with ac/dc clamp sensor, Prohibition

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INSTRUCTION MANUAL

KEW MATE 2000/2001

DIGITAL MULTIMETER

WITH

AC/DC CLAMP SENSOR

KYORITSU ELECTRICAL INSTRUMENTS WORKS, LTD.,

TOKYO, JAPAN

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 using 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 and to follow

measurement procedures described in the manual.

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

Failure to follow the above instructions may cause injury, damage to the instrument
and/or damage to equipment under test.

The symbol

indicated on the instrument means that the user must refer to related

parts of 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.

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.
Indicates AC (Alternating Current).
Indicates DC (Direct Current).
Indicates AC and DC.

DANGER

●Never make measurement on circuits with a maximum voltage difference of

600VAC/DC or greater between conductors (300VAC/DC or greater between a
conductor and ground).

●Do not attempt to make measurement in the presence of flammable gasses.

Otherwise, the use of the instrument may cause sparking, which leads 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 measuring ranges.
●Never open the battery compartment cover while making measurement.
●Never try to make measurement if any abnormal conditions, such as broken

Transformer jaws or case is noted.

●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, cracked test leads and exposed metal parts.

●Do not turn the Function Selector Switch while the test leads are connected to the

circuit under test.

●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 disconnect the clamp sensor and the test leads from the circuit under test

and switch off the instrument before opening the battery compartment cover for
battery replacement.

CAUTION

●Make sure that the Function Selector Switch is set to an appropriate position

before making measurement.

●Always make sure to place the test leads in the test lead holder before making

current measurement.

●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 used for a long period of time, place it in storage after
removing the batteries.

●Use a damp cloth and detergent for cleaning the instrument. Do not use

abrasives or solvents.

○ Measurement categories (Over-voltage categories)

To ensure safe operation of measuring instruments, IEC61010 establishes safety

standards for various electrical environments, categorized as CATto CAT, and called

measurement categories. Higher-numbered categories correspond to electrical

environments with greater momentary energy, so a measuring instrument designed for

CATenvironments can endure greater momentary energy than one designed for CAT.

CAT.: Secondary electrical circuits connected to an AC electrical outlet through a

transformer or similar device.

CAT.: Primary electrical circuits of equipment connected to an AC electrical outlet by a

power cord.

CAT.: Primary electrical circuits of the equipment connected directly to the distribution

panel, and feeders from the distribution panel to outlets.

CAT.: 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

●Permits AC/DC current measurement up to 60A using a clamp sensor that comes

standard with the instrument

●Clamp sensor for ease of use in crowded cable areas and other tight places
●Permits current measurement with an open current-clamp sensor that does not

require opening and closing operations by the user

●Auto-power-save function
●Buzzer for easy continuity checking
●Data hold function to freeze the readings
●LCD with a 3400 count full scale bar graph
●Shock absorbing holster for ease of storage
●Designed to international safety standard IEC61010-1: over-voltage category CAT.,

300V and pollution degree 2.

Incoming wire

CAT.

Interior wiring

Transformer

CAT.

CAT.

CAT.

Socket

3.SPECIFICATIONS

●Measuring Ranges and Accuracy (at 23℃±5℃, relative humidity75% or less)

※Electromagnetic

RF field ≦ 1 V/m

compatibility

ACV/DCV/OHMS/FREQUENCY total accuracy = specified accuracy

(IEC 61000-4-3) ACA/DCA

total accuracy = specified accuracy+5dgt

RF transmitters such as mobile telephones may not be used in
close proximity.

●Safety Standard

IEC 61010-1
over-voltage category CAT., 300V, pollution degree 2
over-voltage category CAT., 600V, pollution degree 2
IEC 61010-2-031
IEC 61010-2-032
IEC 61326 (EMC)

●Operating System

Dual integration

●Display

Liquid crystal display with maximum reading of 3399
as well as units and annunciators
Bar graph with maximum points of 33

●Over Input Indication

"OL" on the LCD (Ω ranges only)

●Auto-ranging Operation

Shifts to the next higher range when bar graph
increases to 33 points
Shifts to the next lower range when bar graph
decreases to 3 points

●Sample Rate

Numeric reading: about 400ms,
bar graph: about 20ms

MODEL

2000
2001

Range

60A

100A

AC Current

A

DC Current

A

AC Voltage

V Input impedance: 10MΩ

DC Voltage

V Input impedance: 10MΩ

Measuring Range

0-60.0A

0-100.0A

Accuracy

±2.0%rdg±5dgt(50/60Hz)
±2.0%rdg±5dgt(50/60Hz)

MODEL

2000
2001

Range

60A

100A

Measuring Range

0-±60.0A

0-±100.0A

Accuracy

±2.0%rdg±5dgt
±2.0%rdg±5dgt

Range

3.4V

34V

340V
600V

Measuring Range

0-600V

(Auto-ranging)

Accuracy

±1.5%rdg±5dgt(50-400Hz)

Range
340mV

3.4V

34V

340V
600V

Measuring Range

0-±600V

(Auto-ranging)

Accuracy

±1.5%rdg±4dgt

Resistance Ω/

Range

340Ω

3.4kΩ

34kΩ

340kΩ
3.4MΩ

34MΩ

Measuring Range

0-33.99MΩ

(Auto-ranging)

Accuracy

±1.0%rdg±3dgt
Buzzer beeps below 30±10Ω

(Continuity buzzer works on 340Ω range

only)
±5%rdg±5dgt
±15%rdg±5dgt

Frequency Hz

Range

Current

Voltage

Measuring Range

0-3.399kHz

3.4kHz-10kHz

(Auto-ranging)

0-3.399kHz

3.4kHz-33.99kHz

34kHz-300kHz

(Auto-ranging)

Accuracy

±0.1%rdg±1dgt

±0.1%rdg±1dgt

●Location for use

Indoor use, Altitude up to 2000m

●Accuracy-insured

23℃±5℃, relative humidity 75% or less

Temperature and

(without condensation)

Humidity Ranges

●Operating Temperature

0-40℃, relative humidity 85% or less

and Humidity Range

(without condensation)

●Storage Temperature

-20-60℃, relative humidity 85% or less

and Humidity Range

(without condensation)

●Source

Two 1.5VDC R03 (UM-4) batteries

●Current Consumption

Approx. 10mA

●Power-save Function

Shifts to the power-save state about 10 minutes after
the last switch operation

(current consumption: approx. 10μA)

●Overload Protection

AC/DC current ranges: MODEL2000 AC/DC 72A for

10 seconds

AC/DC current ranges: MODEL2001 AC/DC

120

A for

10 seconds

AC/DC voltage ranges: AC/DC 720V for 10 seconds
Resistance ranges: AC/DC 720V for 10 seconds
Frequency ranges: AC/DC 720V for 10 seconds

●Withstand Voltage

AC3700V for 1 minute between electrical circuit and
housing case

●Insulation Resistance

10MΩ or greater at 1000V between electrical circuit
and housing case

●Conductor Size

MODEL2000 Approx. 6mm diameter max.
MODEL2001 Approx. 10mm diameter max.

●Dimensions MODEL2000 128(L)×87(W)×24(D)mm

MODEL2001 128(L)×92(W)×27(D)mm

●Weight

MODEL2000 Approx. 210g
MODEL2001 Approx. 220g

●Accessories

Two R03 (UM-4) batteries
Instruction Manual

4.INSTRUMENT LAYOUT

Data Hold Button

MODEL2001 MODEL2000

Range Hold Button

Test Lead

LCD Display

AC/DC Clamp Sensor

DCA

Zero Adjust

Knob

DCA

Zero Adjust

Knob

Digital Multimeter

Function Selector Switch

Holster

Barrier

Barrier

AC/DC

Battery Voltage Warning

Auto Range

Data Hold

Unit

Bar Graph

Buzzer

Manual
Range

5.PREPARATIONS FOR MEASUREMENT

(1)Checking battery voltage

Set the Function Selector Switch to any position other than the OFF position.
If the marks on the display is clearly legible without symbol "BATT" showing,
battery voltage is OK. If the display blanks or "BATT" is indicated, replace the
batteries according to section 8: Battery Replacement.

NOTE

When the instrument is left powered on, the auto-power-save function
automatically shut the power off; The display blanks even if the Function
Selector Switch is set to a position other than the OFF position in this state.
To power on the instrument, turn the Function Selector Switch or press the
Data Hold Button. If the display still blanks, the batteries are exhausted.
Replace the batteries.

(2)Make sure that the Function Selector Switch is set to the appropriate range.

Also make sure that data hold function is not enabled. If inappropriate range is
selected, desired measurement cannot be made.

(3)Install Test Lead to the Holster on the side of body

It is possible to measure with seeing the LCD Display
keep Test Lead installing to the Holster.

6.HOW TO MAKE MEASUREMENT

6-1 Current Measurement

DANGER

●In order to avoid possible shock hazard, never make measurement on

circuits with a maximum voltage difference of 600VAC/DC or greater
between conductors (300VAC/DC or greater between a conductor and
ground).

●Do not make measurement with the test leads connected to the circuit under

test. Never make measurement with the battery compartment cover
removed.

●Keep your fingers and hands behind the barrier during measurement.

CAUTION

●When handling the clamp sensor, exercise caution not to apply excessive

shocks or vibration to the sensor.

M

aximum measurable conductor size is MODEL2000 6mm / MODEL2001

10mm in diameter.

Wind the lead around the folder.

Test Leads

AC/DC Clamp Sensor

6-1-1 DC Current Measurement

(1)The Function Selector Swith to the "

A" position.

("DC" and "AUTO" marks are shown on the top of the display.)

(2)Turn the 0(Zero) ADJ knob to set the reading of the multimeter to zero. (If this

zero adjustment is made incorrectly, measurement errors will result.)

(3)Adjust one of the conductors to the center of the clamp sensor's arrow.

( When the position of the conductor is not at the center of the arrow, the error
occurs.)

Measured value is shown on the display.

Note: When current flows from the upside to the underside of the instrument, the

polarity of the reading is positive (+). Otherwise, the polarity of the reading is
negative (-).

6-1-2 AC Current Measurement

(1)Set the Function Selector Switch to "

A."

("AC" and "AUTO" marks are shown on the top of the LCD.)

(2)Adjust one of the conductors to the center of the clamp sensor's arrow.

( When the position of the conductor is not at the center of the arrow, the error
occurs.)

Measured value is shown on the display.

Note: Unlike DC current measurement, zero adjustment is not necessary. There is

not polarity indication either.

6-2 Voltage Measurement

DANGER

●In order to avoid possible shock hazard, never make measurement on circuits

with a maximum voltage difference of 600VAC/DC or greater between
conductors (300VAC/DC or greater between a conductor and ground).

●Do not make measurement with the battery compartment cover removed.
●Keep your fingers and hands behind the barrier during measurement.

6-2-1 DC Voltage Measurement

(1)Set the Function Selector Switch to "

V."

("DC" and "AUTO" marks are shown on the top of the LCD.)

(2)Connect the red test lead to the positive (+) side of the circuit under test and

the black test lead to the negative (-) side. Measured voltage value is shown
on the display.
When the connection is reversed, "-" is shown on the display.

6-2-2 AC Voltage Measurement

(1)Set the Function Selector Switch to "

V."

("AC" and "AUTO" marks are shown on the LCD.)

(2)Connect the test leads to the circuit under test.

Measured voltage value is shown on the display.

6-3 Resistance Measurement

DANGER

●Never make measurement on circuits that are live.
●Never make measurement with the battery compartment cover removed.
●Keep your fingers and hands behind the barrier during measurement.

Conductor

MODEL2000

MODEL2001

Adjust a
conductor to
the center of
the arrow.

Correct

Wrong

(1)Set the Function Selector Switch to "Ω/

."

(2)Check that the display shows over-range. Short the test leads and check that

the buzzer beeps and the display reads zero.

(3)Connect the test leads to the circuit under test. Measured resistance value is

shown on the display. When the measured value is below about 30Ω, the
buzzer beeps.

Note: When the test leads are shorted, the display may read a small resistance

value. This is the resistance of the test leads.

If there is an open in either of the test leads, "OL" is shown on the display.

On the 340Ω range, "

" is shown on the left side of the LCD.

6-4 Frequency Measurement

DANGER

●In order to avoid possible shock hazard, never make measurement on circuits

with a maximum voltage difference of 600VAC/DC or greater between
conductors (300VAC/DC or greater between a conductor and ground).

●Do not make measurement with the test leads connected to the circuit under test.

Never make measurement with the battery compartment cover removed.

●Do not make current measurement with the test leads connected to the circuit

under test.

●Keep your fingers and hands behind the barrier during measurement.

(1)Set the Function Selector Switch to "Hz."
(2)Measuring frequency of current:

Adjust one of the conductors to the center of the clamp sensor's arrow.
Measured value is shown on the display.
Measuring frequency of voltage:
Connect the test leads to the circuit under test. Measured frequency is
shown on the display.

Note: Measuring range of current frequency is 0-10kHz with minimum measurable

input of MODEL2000 15A

(Typ)/MODEL2001 25A

(Typ).

Measuring range of voltage frequency is 0-300kHz with minimum
measurable input of 30V

(Typ).

When measuring frequency, do not attach the clamp sensor and the test
leads to the circuit under test simultaneously.

7.OTHER FUNCTIONS

7-1 Auto-Power-Save Function

NOTE

A small amount of current is consumed even in the power-save state. Make
sure to set the Function Selector Switch to the OFF position when the
instrument is not used.

Prohibition

This function helps to avoid unwanted exhaustion of the batteries because of
leaving the instrument powered on and extend battery life. The instrument
automatically shifts to the power-save state about 10 minutes after the last
Function Selector Switch or other switch operation.
To return to the normal state: Turn the Function Selector Switch or press the
Data Hold Button twice to exit the power-save state and enable measurement
functions.

7-2 Data Hold Function

This is a function to freeze a measured value on the display. Press the Data
Hold Button once to hold the current reading. In this data hold state, the
reading is held even if input varies. "H" and "

" marks are shown on the LCD

instead of "AUTO" mark.
To exit the data hold state, press the Data Hold Button again.

7-3 Range Hold Function

The instrument defaults to auto-ranging ("AUTO" is shown on the LCD).
Pressing the Range Hold Button enables manual selection among
measurement ranges("

" mark is shown on the LCD instead of "AUTO" mark)

Press the Range Hold Button to select a higher range.
To switch from manual range selection to auto-ranging, press down the Range
Hold Button for about one seconds, or turn the Function Selector Switch to
another position before setting it back to the current range.

8.BATTERY REPLACEMENT

WARNING

●In order to avoid possible shock hazard, always disconnect the test leads

from the circuit under test and set the Function Selector Switch to the OFF
position before trying to replace the batteries.

CAUTION

●Do not mix new and old batteries.
●Install batteries in the orientation as shown inside the battery compartment,

observing correct polarity.

When the battery voltage warning mark "BATT" is shown on the top left corner
of the LCD, replace the batteries. Note that the display blanks and "BATT"
mark is not shown if the batteries are completely exhausted.

(1)Set the Function Selector Switch to "OFF."
(2)Remove the instrument from the holster.
(3)Loosen the battery-compartment-cover-fixing screw on the lower back of

the instrument.

(4)Replace the batteries with two new R03 (UM-4) 1.5V batteries.
(5)Put the battery compartment cover back in place and tighten the screw.

Screw

Battery
Compartment
Cover

Batteries

92―1507C

10―07

DISTRIBUTOR

Kyoritsu reserves the rights to change specifications or
designs described in this manual without notice and without
obligations.

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