KYORITSU KEW2046R Instruction Manual

INSTRUCTION MANUAL
DIGITAL CLAMP METER
KEW SNAP
SERIES
KEW2046R 600A TRMS Type
KEW2056R 1000A TRMS Type

3. Specification

3-1. Measuring range & accuracy
(accuracy guaranteed at 23℃ ±5℃, humidity
45~85%) AC Current 600A, 1000A Function
Accuracy
Measuring
Function
Range
KEW2046R KEW2056R
±2.0%rdg±5dgt(50/60Hz)
0-600.0A
±3.5%rdg±5dgt(40~500Hz)
Peak 1500A
600A
CF=2.5@600A
±5.5%rdg±5dgt(500~1kHz)
CF=3.0@500A
* Add 2% at CF>2
0-1000A
Peak 1500A
1000A
CF=2.5@600A
CF=3.0@500A
DC Current 600A, 1000A Function
Measuring Accuracy
Function
Range KEW2046R KEW2056R
600A 0-600.0A ±1.5%rdg±5dgt
±1.5%rdg±5dgt
1000A 0-1000A
AC Voltage Function
(Auto-ranging, Input impedance: approx. 10MΩ)
Accuracy
Measuring
Range
Range
KEW2046R KEW2056R
±1.5%rdg±4dgt (50/60Hz)
6/60/600V 0-600.0V
±3.5%rdg±5dgt (40~400Hz)
DC Voltage Function
(Auto-ranging, Input impedance: approx. 10MΩ)
Accuracy
Measuring
Range
Range
KEW2046R KEW2056R
600mV/6/6
0-600.0V ±1.0%rdg±3dgt
0/600V
Resistance (Diode Check/ Continuity/ Capacity)
Accuracy
Measuring
Range
Range
KEW2046R KEW2056R
600Ω/6k/
0-600.0V ±1.0%rdg±5dgt
60k/600kΩ
6M/60MΩ 0.600-60.00MΩ ±5%rdg±8dgt
Cont Buzzer 0-600.0Ω Buzzer sounds at 100Ω or less
Diode Test voltage: 0-2V
Capacity Function
Accuracy
Measuring
Range
Range
KEW2046R KEW2056R
40nF the accuracy is not guaranteed
400nF
0.01nF
4μF ±2.5%rdg±20dgt
-4000μF
40μF
Auto-ranging
400μF the accuracy is not guaranteed
4000μF the accuracy is not guaranteed

1. Features

Designed to meet international safety standards.
●
IEC61010-1.IEC61010-031 & IEC61010-2-032
Measurement Category (CAT.) IV 600V
Pollution Degree 2
Double molded main body provides comfortable
●
single handed grip
Data Hold Function
●
LCD Backlight function to facilitate working at dimly
●
lit situations.
REL function to indicate measurement variation
●
(Current, voltage, Resistance measurement)
MIN/MAX function enables easy reading of min &
●
max value during measurement.
PEAK Hold Function enables Peak value measure-
●
ment of starting current. (only at ACA Range)
With Continuity & Diode Check Function
●
Capacity measurement of capacitors
●
Temperature measurement, switchable between ℃
●
and ℉
NCV (Non Contact Voltage) Function for wiring check
●
600V input protection
●
Sleep Function to extend battery life
●
With Bar Graph, 6039 count display
●

2. Safety Warnings

This instrument has been designed,manufactured and
tested according to IEC 61010: Safety requirements
for Electronic Measuring apparatus, and delivered in
the best condition after passed the inspection.
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 using the instrument.
# WARNING
Read through and understand the instructions
●
c o n t a i n e d i n t h i s m a n u a l b e f o re u s i n g t h e
instrument.
Keep the manual at hand 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.
It is essential that the above instructions are
●
adhered to.
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 the related parts in the
manual for safe operation of the instrument. It is
essential to read the instructions wherever the #
symbol appears in the 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 injury or instrument damage.
Frequency/DUTY Function(Auto-ranging for Frequency)
Measuring Accuracy
Range
Range KEW2046R KEW2056R
ACA 40Hz-400Hz
±0.5%rdg±5dgt
ACV 1Hz〜10kHz
0.1-99.9%
±2.5%rdg±5dgt
(Pulse width/Pulse period)
Note: M e a s u r a b l e i n p u t s a re : 40V r m s @ A C V o r
50Arms@AC600A, 350A@AC1000A Range
Temperature Function
Accuracy
Measuring
Range
Range
KEW2046R KEW2056R
-50℃ ~ 0℃ ±5℃±3dgt
0℃ ~ 150℃ ±3℃±2dgt
℃
150℃ ~ 700℃ ±2℃±2dgt
-58℉~ 32℉ ±9℉±3dgt
32℉~ 302℉ ±5℉±2dgt
℉
302℉~1292℉ ±2%±2dgt
Above specified accuracy is applied to Clamp meter
itself. Accuracy of Temperature probe is excluded.

3-2. General Specification

Mode of operation : △ Σ mode
●
Display : max. 6039 counts
●
(Frequency: 9999, Capacity &Temperature:4039)
& Bar graph
Over-range indication : "OL" displayed when exceeding
●
the measuring range.
(except for AC/DCV and 1000A Function)
Range switching :
●
Auto-ranging/Voltage, Resistance, Capacity Range
Single range / Continuity, Diode check, DUTY and
Temperature
Sample rate : three times per second
●
Functional construction :
●
OFF/ ACA/ ACV/ DCA/ DCV/Ω/ /
℃ ℉
Keys :
●
SELECT(AC/DC switching &/Ω/ / /
PEAK HOLD/ Back Light, REL△ ,Hz/DUTY, MIN/MAX
Power source : DC3V/ R03(UM-4) x 2pcs
●
Low battery warning : " " mark is displayed at
●
2.4V±0.15V or less.
Temperature & humidity : 23℃ ±5℃ , relative humidity
●
accuracy guaranteed 85% or less (no condensation)
Operating temperature : 0~40℃ , relative humidity 85%
●
& humidity range or less (no condensation)
Storage temperature : -20~60℃ , relative humidity
●
& humidity range 85% or less (no condensation)
Current consumption : approx. 25 mA
●
Sleep Function : Automatically powered off in about
●
15 min after the last Function switch operation.
Rotate the Function Switch from OFF to any
position to exit from the Sleep state.
Marks listed in the table below are used on this
●
instrument.
#
User must refer to the manual.

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.

AC

DC
AC & DC
T h i s i n s t r u m e n t s a t i s f i e s t h e m a r k i n g
requirement defined in the WEEE Directive.
This symbol indicates separate collection for
electrical and electronic equipment.
# DANGER
Never make measurement on a circuit in which
●
voltage over AC600V exists.
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.
Transformer jaw tips are designed not to short the
●
circuit under test. If equipment under test has
e x p o s e d c o n d u c t i v e p a r t s , h o w e v e r, e x t r a
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 measuring range.
N e v e r o p e n t h e B a t t e r y c o v e r d u r i n g a
●
measurement.
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 measurement if any
●
abnormal conditions, such as broken case and
exposed metal parts are found on the instrument.
Do not rotate the Function Switch while the test
●
leads are being connected.
Do not install substitute par ts or make any
●
modification to the instrument. For repair or re-
calibration, return the instrument to your local
distributor from where it was purchased.
Do not try to replace the batteries if the surface of
●
the instrument is wet.
Disconnect all the cords and cables from the
●
object under test and power off the instrument
before opening the Battery Cover for Battery
replacement.
Verify proper operation on a known source before
●
use or taking action as a result of the indication of
the instrument.
Applicable Standards
●
IEC 61010-1 : 2001
Measurement CAT. IV 600V Pollution degree 2
IEC 61010-031:2002, IEC 61010-2-032
EMC：EN 61326
・ EN 55022
・ EN 61000-4-2 (performance criterion B)
・ EN 61000-4-3 (performance criterion B)
Overload Protection
●
Current Range : 720A AC/ 10 sec@KEW2046R
1200A AC/DC/ 10 sec@KEW2056R
Voltage Range : 720V AC/DC/ 10sec
Resistance Range : 600V AC/DC/ 10sec
Withstand Voltage
●
6880V AC （TRMS 50/60Hz）/ 5 sec
(between Jaws and electrical circuit/ between
internal circuit and enclosure)
Insulation Resistance: 10MΩ or more/ 1000V
●
（between electrical circuit and enclosure）
Conductor size
●
KEW2046R: approx. 33mm
KEW2056R: approx. 40mm
Dimension
●
approx. 254(L)×82(W)×36(D)mm / KEW2056R
approx. 243(L)×77(W)×36(D)mm / KEW2046R
Weight : approx 300g @ KEW2046R
●
310g @ KEW2056R
Accessories
●
Test Leads Model 7066 / 1 set
Battery R03（UM-4）/ 2pcs
Instruction manual English, Japanese / 1pce
Carrying Case Model 9094 / 1pcs
Optional Accessories
●
K-type Temperature Probe Model 8216
Multi-Tran M-8008
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
re c t i f y i n g c i rc u i t h a v e " R M S " s c a l e s f o r A C
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.
# CAUTION
Set the Function Switch to an appropriate position
●
before starting measurement.
Firmly insert the test leads.
●
Disconnect the test leads from the instrument for
●
current measurement.
Do not expose the instrument to the direct sun,
●
high temperature and humidity or dewfall.
Altitude 2000m or less. Appropriate operating
●
temperature is within 0℃ and 40℃.
This instrument isn't dust & water proofed. Keep
●
away from dust and water.
Be sure to power off the instrument 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.
Measurement categories (Over-voltage categories)
To ensure safe operation of measuring instruments,
IEC61010 establishes safety standards for various
electrical environments, categorized as CAT.Ⅰ to
CAT.Ⅳ, and called measurement categories.
Higher-numbered categories correspond to electrical
environments with greater momentary energy, so a
m e a s u r i n g i n s t r u m e n t d e s i g n e d f o r C AT. Ⅲ
environments can endure greater momentary energy
than one designed for CAT.Ⅱ.
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
Interior wiring
CAT.III
CAT.IV
CAT.II
Transformer
CAT.I
Socket
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
Conversion
Reading errors for
Crest factor
Effective value Average value
Waveform factor
average sensing
Vrms Vavg
Vrms/ Vavg
instrument
π
1 2
A
A A
π
0 2 2 2 0％
≒0.707
≒0.637 ≒1.111
A
A×1,111-A
×100
0
A A 1 A
＝11.1％
A
2
0.5A×1.111-
A
1 3
×100
A 0.5A 3
0 A
3
≒1.155 3
＝-3.8％
T
A
（1.111 -1）
f 1 D
A D
A ＝A ・ D
＝
A D
0 T
D ×100％
AD A
f
D = f/T

3-3. Function Keys

The "●" mark shows available function at each
Range.
Hz/
HOLD PEAK SELECT ZERO
DUTY
ACA
● ● ● ● ●
ACV - -
● ● ●
DCA - -
● ● ●
DCV - - -
● ●
- -
Ω ● ● ●
- - - -
●
- - - -
●
- -
● ● ●
TEMP - -
● ● ●

4. Preparation for measurement

4-1. Checking Battery Voltage

Set the Function Switch to any position other than
"OFF". When the display is clear without "BATT" mark,
showing battery voltage is enough. When the display is
blank or "BATT" mark is indicated, replace the batteries
according to Section 7, Battery Replacement.
# CAUTION
T h e S l e e p f e a t u re a u t o m a t i c a l l y p o w e r s t h e
instrument off in about 15 min after the last switch or
key operation. Therefore, the display may be blank
even with the Function Switch set to a position other
than "OFF". To operate the instrument in this case,
turn the switch back to the "OFF" position, then to
any other position. Replace the batteries if nothing
was displayed after above operations.
4-2. Checking Switch Setting & Operation
Confirm the Function Switch is set to the correct
p o s i t i o n , t h e i n s t r u m e n t i s s e t to t h e c o r re c t
measurement mode,and the Data hold function is
disabled. Otherwise,desired measurement cannot be
made.
CF
2
≒1.414
1
3
≒1.732
1
A
＝
D
D
MAX/
MIN
●
●
●
●
●
-
-
-
●