取扱説明書
INSTRUCTION MANUAL
デジタルクランプメータ
DIGITAL CLAMP METER
KEW SNAP SERIES
MODEL 2 0 0 2 PA 2 0 0 2 R
KYORITSU ELECTRICAL INSTRUMENTS
WORKS,LTD.
ENGLISH
Contents
1.Safety Warnings ……………………………………………………… 26
2.Features ……………………………………………………………… 28
3.Specifications
3−1 MODEL 2002PA………………………………………………… 29
3−2 MODEL 2002R ………………………………………………… 31
4.Instrument Layout …………………………………………………… 34
5.Preparation for Measurement
5−1 Battery Voltage Check ……………………………………… 35
5−2 Checking Switch Setting and Operation …………………… 35
6.Measurement
6−1 Current Measurement…………………………………………36
6−2 Voltage Measurement ……………………………………… 38
6−3 Resistance Measurement …………………………………… 39
7.Notes on Functions
7−1 Data Hold ………………………………………………………41
7−2 Sleep Function………………………………………………… 41
7−3 Output for Recorder …………………………………………42
7−4 Mode Switching Function ……………………………………43
8.Battery Replacement ………………………………………………… 44
9.Optional Accessories ………………………………………………… 45
― 25 ―
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 and
to follow measurement procedures described in the manual.
●Be sure to understand and follow all safety instructions contained
in the manual.
Be sure to observe the 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.
― 26 ―
DANGER
●Never make measurement on the circuit above 750VAC or 1000VDC.
●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 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 open the battery compartment cover and the instrument case
when making measurement.
●Verify proper operation on a known source before use or taking
action as a result of the indication of the instrument.
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 with test leads connected to
the instrument.
●Do not install substitute parts or make any modification to the
instrument. Return the instrument to your distributor for repair or recalibration.
●Do not try to replace the batteries if the surface of the instrument is wet.
●Always switch off the instrument and make sure to disconnect test leads
before opening the battery compartment cover for battery replacement.
CAUTION
●Always make sure to check the function selector switch is set to an
appropriate position before starting measurement.
●Always make sure to insert the plug of each lead fully into the
appropriate terminal on the instrument.
●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.
●Do not expose the instrument to the direct sun, high temperature or
dew fall.
●Use a cloth dipped in water or neutral detergent for cleaning the
instrument. Do not use abrasives or solvents.
― 27 ―
2.Features
●Tear-drop-shaped jaws for ease of use in crowded cable areas and
other tight places.
●Accurate true-RMS reading of AC current or voltage with distorted
waveform (MODEL2002R)
●Provides a wide measuring range from 0 up to 2000A.
●Terminal cover to avoid the use of an incorrect terminal.
●Measures current variation as short as 10 msec with peak-hold
feature.
●Provides output to a chart recorder for current variation recording.
●Designed to international safety standards.
IEC61010-1 (CAT.Ⅲ 600V /CAT.Ⅱ 1000V Pollution degree 2)
IEC61010-031, IEC61010-2-032
●Data hold function to allow easy readings in dimly lit or hard-to-read
locations.
●Sleep feature to conserve battery power.
●Permits easy continuity check with a beeper.
●Provides a dynamic range of 4,000 counts full scale.
●Provides wide measuring range of voltage and resistance in autoranging.
●Wide frequency range from 40Hz to 1kHz (Current measuring range:
0-1500A).
●Transformer jows fitted with guard to further improve safety.
●Protected throughout by double or reinforced insulation“F”.
― 28 ―
3.Specifications
3−1 MODEL 2002PA
●Measuring Ranges and Accuracy(at 23±5℃, relative humidity 45-75%)
AC Current
400A,
2000A
∼
∼
Range
Measuring Range Resolution
400A
0∼400.0A
0.1A
2000A
0∼1000A
1000∼1500A
1500∼2000A
1A
AC Voltage(
Accuracy(Frequency Range)Maximum Measurement Time
±1.0%rdg±3dgt(50/60Hz)
Continuous
±2.0%rdg±3dgt(40∼1kHz)
±1.0%rdg±3dgt(50/60Hz)
15min
±3.0%rdg±3dgt(40∼1kHz)
5min
±3.0%rdg
(50/60Hz)
∼V)Auto-ranging
Range Measuring Range Resolution
Accuracy(Frequency Range)
40V
0∼40.00V
0.01V ±1.0%rdg±2dgt(50/60Hz)
400V
15.0∼400.0V
0.1V
±1.5%rdg±3dgt(40∼1kHz)
750V
1V
150∼750V
Initially set to the 40V range. Input impedance is about 1MΩ.
DC Voltage(
V)Auto-ranging
Accuracy
Range Measuring Range Resolution
40V
0∼±40.00V
0.01V
±1.0%rdg±2dgt
400V
±15.0∼±400.0V 0.1V
1000V ±150∼±1000V 1V
Initially set to the 40V range. Input impedance is about 1MΩ.
Resistance(Auto-ranging)
Accuracy
Range Measuring Range Resolution
400Ω
0∼400.0Ω
0.1Ω
4kΩ
0.150∼4.000kΩ
1Ω
±1.5%rdg±2dgt
40kΩ
1.50∼40.00kΩ
10Ω
400kΩ 15.0∼400.0kΩ
100Ω
Initially set to the 400Ω range. In the continuity check mode, fixed to the 400Ω range and
when the reading is not more than 50±35Ω, the buzzer beeps.
OUTPUT(AC Current Ranges)
DC Output: 100.0mV per 1000 counts (Output impedance: about 10kΩ)
Range Output Voltage / Measuring Range
Accuracy(Frequency Range)
400A
0∼400.0mV/0∼400A
±1.5%rdg±0.5mV(50/60Hz)
±2.5%rdg±0.5mV(40∼1kHz)
2000A 0∼150.0mV/0∼1500A
±1.5%rdg±0.5mV(50/60Hz)
±3.5%rdg±0.5mV(40∼1kHz)
150.0∼200.0mV/1500∼2000A ±3.5%rdg
(50/60Hz)
●Electromagnetic compatibility (EMC)
EN61000-4-3 Radiated RF electromagnetic field immunity
RF field strength=<=1V/m, total accuracy:specified accuracy
RF field strength=3V/m, total accuracy
:specified accuracy+2% of range
― 29 ―
●Operating System
●Display
Dual Integration
Liquid crystal display with a maximum
count of 4000
●Low Battery Warning
"BATT" symbol is displayed on the digital
display.
●Overrange Indication
"OL" is displayed where input exceeds
the upper limit of a range
●Response Time
Approx. 2 seconds
●Sleep function
Automatically powered down in about 10
minutes after the last switch operation
●Data Hold
Available in all ranges provided the peak
measurement mode is deactivated.
●Operating Environmental indoor use
conditions
altitude up to 2000m
●Storage Temperature
ー20∼60℃, relative humidity up to 85%
and Humidity
without condensation
●Operating Temperature 0∼40℃, relative humidity up to 85%
and Humidity
without condensation
●Conductor Size
Approx. 54.5㎜ diameter max.
●Overload Protection
2400A AC for 10sec
1200V AC/DC for 10sec
600V AC for 10sec
●Withstand Voltage
5320V AC for 5 seconds between electrical
circuit and housing cases or metal parts
of jaws
●Insulation Resistance
10MΩ or greater at 1000V between
electrical circuit and housing cases or
metal parts of jaws
●Safety Standard
IEC 61010-1: Measurement CAT.Ⅲ
600V/CAT.Ⅱ 1000V, pollution degree 2.
●Dimensions
247
(L)
×105
(W)
×49
(D)
mm
●Weight
Approx. 470g(battery included)
●Power Source
Two R6P(DC1.5V) batteries or equivalent
●Current Consumption
Approx. 5mA max. (Approx. 20μA in the
sleep mode)
●Accessories
Test leads M-7107
Two R6P batteries
Instruction manual
Recorder Output Plug M-8201
Carrying case M-9094
●Optional Accessories
Multi-Tran M-8008
Output Probe M-7014, etc.
.
― 30 ―
3−2 MODEL 2002R
●Measuring Ranges and Accuracy(at 23±5℃, relative humidity 45-75%)
AC Current
400A,
2000A
(9 counts or less is corrected to 0)
∼
∼
Range
Measuring Range Resolution
400A
0∼400.0A
0.1A
2000A
0∼1000A
1000∼1500A
1500∼2000A
1A
Accuracy(Frequency Range)Maximum Measurement Time
±1.5%rdg±3dgt(45∼65Hz)
±2.5%rdg±3dgt(40∼1kHz) Continuous
±2.0%rdg±5dgt(45∼65Hz)
15min
±3.0%rdg±5dgt(40∼1kHz)
5min
±4.0%rdg
(50/60Hz)
∼
V)Auto-ranging
(9 counts or less is corrected to 0)
Range Measuring Range Resolution
Accuracy(Frequency Range)
0∼40.00V
40V
0.01V ±1.0%rdg±2dgt(45∼65Hz)
15.0∼400.0V
400V
0.1V
±1.5%rdg±3dgt(40∼1kHz)
150∼750V
750V
1V
Initially set to the 40V range. Input impedance is about 1MΩ.
When approx.300V or more is applied to the instrument instantaneously, the measured
value is indicated on 750V range.
AC Voltage(
DC Voltage(
V)Auto-ranging
Accuracy
Range Measuring Range Resolution
0∼±40.00V
40V
0.01V
±1.0%rdg±2dgt
±15.0∼±400.0V 0.1V
400V
1000V ±150∼±1000V 1V
Initially set to the 40V range. Input impedance is about 1MΩ.
Resistance(Auto-ranging)
Accuracy
Range Measuring Range Resolution
0∼400.0Ω
400Ω
0.1Ω
0.150∼4.000kΩ
4kΩ
1Ω
±1.5%rdg±2dgt
1.50∼40.00kΩ
40kΩ
10Ω
400kΩ 15.0∼400.0kΩ
100Ω
Initially set to the 400Ω range. In the continuity check mode, fixed to the 400Ω range and
when the reading is not more than 50±35Ω, the buzzer beeps.
OUTPUT(AC Current Ranges)
DC Output: 100.0mV per 1000 counts (Output impedance: about 10kΩ)
Range Output Voltage / Measuring Range
Accuracy(Frequency Range)
400A
0∼400.0mV/0∼400A
±2.0%rdg±0.5mV(45∼65Hz)
±3.0%rdg±0.5mV(40∼1kHz)
2000A 0∼150.0mV/0∼1500A
±2.5%rdg±0.5mV(45∼65Hz)
±3.5%rdg±0.5mV(40∼1kHz)
150.0∼200.0mV/1500∼2000A ±4.5%rdg
(50/60Hz)
●CF (Crest Factor) CF=3 or less
accuracy+1% (45∼65Hz)、less than AC3000A/AC1200V Peak
●Electromagnetic compatibility (EMC)
EN61000-4-2 Electrostatic discharge immunity(ESD)
Performance criteria B
― 31 ―
●Operating System
●Display
Dual Integration
Liquid crystal display with a maximum
count of 4000
●Low Battery Warning
"BATT" symbol is displayed on the digital
display.
●Overrange Indication
"OL" is displayed where input exceeds
the upper limit of a range
●Response Time
Approx. 2 seconds (at full scale)
●Sleep function
Automatically powered down in about 10
minutes after the last switch operation
●Data Hold
Available in all ranges provided the peak
measurement mode is deactivated.
●Operating Environmental indoor use
conditions
altitude up to 2000m
●Storage Temperature
ー20∼60℃, relative humidity up to 85%
and Humidity
without condensation
●Operating Temperature 0∼40℃, relative humidity up to 85%
and Humidity
without condensation
●Conductor Size
Approx. 54.5㎜ diameter max.
●Overload Protection
2400A AC for 10sec
1200V AC/DC for 10sec
600V AC for 10sec
●Withstand Voltage
5320V AC for 5 seconds between
electrical circuit and housing cases or
metal parts of jaws
●Insulation Resistance
50MΩ or greater at 1000V between
electrical circuit and housing cases or
metal parts of jaws
●Safety Standard
IEC 61010-1: Measurement CAT.Ⅲ
600V/CAT.Ⅱ 1000V, pollution degree 2.
●Dimensions
247
(L)
×105
(W)
×49
(D)
mm
●Weight
Approx. 470g(battery included)
●Power Source
Two R6P(DC1.5V) batteries or equivalent
●Current Consumption
Approx. 10mA max. (Approx. 20μA in the
sleep mode)
●Accessories
Test leads M-7107
Two R6P batteries
Instruction manual
Recorder Output Plug M-8201
Carrying case M-9094
●Optional Accessories
Multi-Tran M-8008
Output Probe M-7014, etc.
― 32 ―
― 33 ―
4.Instrument Layout
Transformer Jaw
Jaw Trigger
Function Switch
Data Hold Switch
Display
Reset Switch
Terminal Cover
Mode Switch
Drop Prevention Strap
OUTPUT Terminal
COM Terminal
︸
Test Leads
Mー7107
V/Ω Terminal
Recorder Output Plug
Mー8102
● LCD INDICATOR
DC Current
AC Current
Data Hold Mode
Resistance
Negative Potential
Voltage
Current
Continuity Check Mode
Battery Voltage Alert
― 34 ―
Peak Mode Measurement
5.Preparation for Measurement
5−1 Checking Battery Voltage
①Set the function selector switch to any position other than "OFF".
②When the display is clear without "BATT" showing, proceed to
measurement.
③When the display blanks or "BATT" is indicated, replace the
batteries according to section 8: battery replacement.
NOTE
● It is possible that display is kept in blank while the function selector
switch is set to a position other than "OFF". This is due to sleep
function which automatically powers the instrument down in a
certain period of time after the last switch operation. To operate
the instrument in this case, set the switch back to the "OFF"
position, then to the desired position, or press any button.
5−2 Checking Switch Setting and Operation
Make sure that the function selector switch is set to the correct
position, the instrument is set to the correct mode and the data hold
function is deactivated. Otherwise, desired measurement cannot be
made. (See section 6 for measurement instructions and section 7 for
notes on functions.)
― 35 ―
6.Measurement
6−1 Current Measurement
WARNING
●Do not make measurement on a circuit above 750V AC. This may
cause shock hazard or damage to the instrument or equipment under
test.
●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.
●Do not make measurement with the battery compartment cover
removed from the instrument.
●Do not make current measurement with the test leads connected to the
V/Ω and COM terminals.
●When measuring current is not less than 1000A, make sure to stop
measurement within the maximum measuring time shown below.
Otherwise, transformer jaws may heat to cause a fire or
deformation of molded parts, which will degrade insulation.
1000∼1500A:15min. 1500∼2000A:5min.
Incorrect
Correct
6−1−1 AC Current Measurement (Normal Mode)
①Set the function selector switch to the "∼400A" or "∼2000A"
position and make sure that the current under test does not exceed
the upper limit of the measuring range you are selecting.
②Press the trigger to open the transformer jaws and clamp them onto
the conductor under test.
― 36 ―
③Take the reading on the display.
NOTE
● During current measurement, keep the transformer jaws fully
closed. Otherwise, accurate measurement cannot be made. The
maximum measurable conductor size is 54.5mm in diameter.
● When measuring a larger current, the transformer jaws may buzz.
This is not a fault and does not affect the accuracy at all.
6−1−2 Peak Current Measurement
①Set the function selector switch to the "∼400A" or "∼2000A" position.
②Press the mode switch to select the peak mode. "PEAK" will be
shown on the display.
③Press the trigger to open the transformer jaws and clamp them onto
the conductor under test. Then, press the reset switch.
④The display shows the current's crest value divided by the square
root of two. Therefore, when the current is sinusoidal, the reading
equals RMS value.
⑤To reset the display, press the reset switch.
(Note: When this is done, the reading goes off for about one second.)
Peak Hold
INPUT Current
Vp
Vp/ 2
⑥After the measurement is over, press the mode switch to return to
the normal mode.
NOTE
●In the peak measurement mode, the data hold feature is disabled.
●When a measured value is 9 counts or less, it is corrected to 0
(MODEL2002R).
― 37 ―
6−2 Voltage Measurement
WARNING
●Do not make measurement on a circuit above 750V AC or 1000V
DC. This may cause shock hazard or damage to the instrument or
equipment under test.
●Do not make measurement with the battery compartment cover
removed.
Black test lead
Red test lead
6−2−1 DC Voltage Measurement
①Set the function selector switch to the "
V" position.
②Slide the terminal cover to the left. Plug the red test lead into the V/Ω
terminal and the black test lead into the COM terminal.
③Connect the other end of the test leads to the circuit under test.
Take the reading on the display. When the red lead is the negative
potential, the "ー" sign is shown on the display.
6−2−2 AC Voltage Measurement
①Set the function selector switch to the "∼V" position.
②Slide the terminal cover to the left. Plug the red test lead into the V/Ω
terminal and the black test lead into the COM terminal.
③Connect the other end of the test leads to the circuit under test. Take
the reading on the display.
NOTE
● For high sensitivity, there are parts which do not indicate "0".
― 38 ―
6−3 Resistance Measurement
WARNING
●Before attempting to make measurement, make sure that the
circuit under test is not live. The instrument is protected against a
voltage up to 600V.
●Do not make measurement with the battery compartment cover
removed.
Black
test lead
Red test lead
6−3−1 Resistance Measurement (Normal Mode)
①Set the function selector switch to the "Ω/ " position.
②Slide the terminal cover to the left. Plug the red test lead into the V/Ω
terminal and the black test lead into the COM terminal.
③Short the tip of the test leads and check whether the display reads "0".
④Connect the tip of the test leads to the circuit under test. Take the
reading on the display.
NOTE
● When shorting the tip of the test leads, the display may read a very
small resistance instead of "0." This is the resistance of the test
leads, not a fault.
● If one of the test leads is open, the display reads "OL".
― 39 ―
6−3−2 Continuity Check
①Set the function selector switch to the "Ω/
" position.
②Slide the terminal cover to the left. Plug the red test lead into the V/Ω
terminal and the black test lead into the COM terminal.
③Press the mode switch to set the instrument to the continuity check
mode. The measuring range is fixed to 400Ω and the " " symbol
is shown on the display.
④Short the tip of the test leads and make sure that the display reads
"0" and the buzzer beeps.
⑤Connect the tip of the test leads to the circuit under test. The
display reads the resistance and the buzzer beeps when the
reading is not more than about 50Ω.
NOTE
● When shorting the tip of the test leads, the display may read a very
small resistance instead of "0". This is the resistance of the test
leads, not a fault.
● If one of the test leads is open, the display reads "OL".
― 40 ―
7.Notes on Functions
7−1 Data Hold
This is a function used to freeze the measured value on the
display.
①Press the data hold switch. The reading becomes frozen and the
"H" symbol is shown on the display, indicating the instrument in the
data hold mode.
②To exit the data hold mode, press the data hold switch again to
release it.
NOTE
● When the function selector switch is turned while the instrument is
in the data hold mode, the data hold function remains activated.
To make measurement in this case, release the data hold switch
by pressing it and exit the data hold mode.
● The data hold function is disabled in the peak measurement mode
on the AC current range.
● When the sleep function is activated, the data hold mode turns to
the normal mode.
7−2 Sleep Function
This is a function to prevent the instrument from being left powered
on in order to conserve battery life.
①The instrument automatically enters the sleep (powered-down)
mode about 10 minutes after the last switch operation.
②To exit the sleep mode, press the data hold, reset or mode switch
or turn the function selector switch back to "OFF", then to any other
position.
[How to Exit the Sleep Mode ]
①Turn the function selector switch from "OFF" to another position with
the data hold switch pressed. Then, "P.OFF" is shown on the
display. This disables the sleep function and enables continuous
use of the instrument.
― 41 ―
②To enable the sleep function, turn the function selector switch back
to "OFF", then to any other position.
NOTE
● The instrument consumes small amount of current in the sleep
mode. When the instrument is not in use, make sure to set the
function selector switch to "OFF".
7−3 Recorder Output
Only on the "∼400A" or "∼2000A" range, DC voltage proportional
to the input current is output from the OUTPUT terminal.
①Set the function selector switch to the "∼400A" or "∼2000A"
position.
②Slide the terminal cover to the right and insert the recorder output
plug into the OUTPUT terminal for connection with a recorder or
other recording device.
NOTE
● Output voltage is 1mV/A on the "∼400A" range and 0.1mV/A on
the "∼2000A" range. Set an appropriate input sensitivity on the
recorder.
● The peak hold function does not apply to the recorder output even
if the instrument is in the peak hold mode.
● For long term measurement, disable the sleep function. (See
section 7-2 for sleep function.)
― 42 ―
[How to attach a pair of leads to the recorder output plug]
Attach one end of the leads to the recorder output plug observing
correct polarity, then connect the other end to the recorder.
DANGER
Never apply voltage to the output terminal.
7−4 Mode Switching Function
On a AC current ("∼400A" or "∼2000A") or the resistance(Ω/ )
range, press the mode switch to cycle through the measurement
modes. The instrument is initially set to the normal mode and can be
switched to the peak or continuity check mode by means of the mode
switch. (See section 6-1-2 for peak current measurement and section
6-3-2 for continuity check.)
≪AC Current Range(400A or 2000A)≫
Normal
Press the mode switch
Peak
Peak current value is displayed.
(Response time: 10ms)
"PEAK" is shown on the display.
Press the mode switch
≪Resistance Range≫
Normal
Press the mode switch
Press the mode switch
Continuity Check
The buzzer beeps if the resistance
is not more than about 50Ω.
The buzzer symbol is shown on
the display.
― 43 ―
8.Battery Replacement
WARNING
●To avoid electric shock hazard, make sure to set the function selector
switch to "OFF" and remove the test leads from the instrument before
trying to replace batteries.
CAUTION
●Do not mix new and old batteries.
●Make sure to install batteries in correct polarity as indicated in the
battery compartment.
NOTE
● If the instrument is powered on, but the display blanks or "BATT" is
shown on the display, replace the batteries.
①Set the function selector switch to the "OFF" position.
②Unscrew and remove the battery compartment cover on the bottom
of the instrument.
③Replace the batteries observing correct polarity. Use two new R6P
batteries.
④Replace and screw the battery compartment cover.
Screw
Battery
compartment
cover
Battery
― 44 ―
9.Optional Accessories
● Multi-Tran MODEL 8008 extends the capability of MODEL 2002PA
or MODEL 2002R, allowing measurement up to 3000A or on a
large bus-bar or conductor.
①Set the function selector switch to "∼400A".
②As shown in the figure below, clamp MODEL 2002PA or MODEL
2002R onto the pickup coil of MODEL 8008.
③Clamp MODEL 8008 onto the bus-bar or conductor under test.
④Take the reading on MODEL 2002PA or MODEL 2002R and
multiply it by 10.
MAX
100㎜
MAX
150㎜
― 45 ―
MEMO
― 46 ―
MEMO
― 47 ―
MEMO
― 48 ―
MEMO
― 49 ―
DISTRIBUTOR
Kyoritsu reserves the rights to change specifications or
designs described in this manual without notice and without
obligations.
03―08
92―1579A
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