Kyoritsu Electrical Instruments Works KEW 2055 Instruction Manual

INSTRUCTION MANUAL
DIGITAL CLAMP METER
KEW 2055
Barrier
Protective fingerguard
Cap
Protective fingerguard (Barrier)
：
It is a part providing protection against electrical
shock and ensuring the minimum required air and
creepage distances.
Cap
：
Uncapped condition for CAT II environment
Capped condition for CAT III/ IV environments
The Cap shuld be firmly attached to the probes.
When the instrument and the test lead are combined
and used together, whichever lower category either of
them belongs to will be applied.
3. Specification
3-1. Measuring range & accuracy
(accuracy guaranteed at 23 5 .humidity 45
℃ ± ℃
AC Current 600A, 1000A Function
Measuring
Function Accuracy
Range
1.5%rdg 5dgt
± ±
600A 0-600.0A
(50/60Hz)
3.5%rdg 8dgt
± ±
(40-400Hz)
1000A 0-1000A
DC Current 600A, 1000A Function
Measuring
Function Accuracy
Range
600A 0-600.0A
1.5%rdg 5dgt
± ±
1000A 0-1000A
AC Voltage Function
Auto-ranging, Input impedance: approx. 10M
（
Measuring
Range Accuracy
Range
1.3%rdg 4dgt (50/60Hz)
± ±
6/60/600V 1-600.0V
3.0%rdg 5dgt (40 400Hz)
± ± 〜
DC Voltage Function
Auto-ranging, Input impedance: approx. 10M
（
Measuring
Range Accuracy
Range
600mV/6/
0-600.0V 1.0%rdg 3dgt
± ±
60/600V
Resistance Continuity/Diode Check Function
（ ）
Measuring
Range Accuracy
Range
600 /6k/
Ω
60k/600k 0-6M 1.0%rdg 5dgt
Ω Ω ± ±
6M
Ω
6.00M-
60M 5%rdg 8dgt
Ω ± ±
60.00M
Ω
Cont Buzzer 0-600.0 Threshold value : 60
Ω Ω±
Diode Test voltage: 0-2V
Frequency/ DUTY Function Auto-ranging for
（
Frequency
）
Measuring
Range Accuracy
Range
ACA 40Hz 400Hz
−
0.5%rdg 5dgt
± ±
ACV 1Hz 10kHz
〜
0.1-99.9%
2.5%rdg 5dgt
± ±
(Pulse width/Pulse period)
Note: Measurable inputs are: 40Vrms@ACV or
60Arms@AC600A, 350A@AC1000A Range
１ ． Features
Designed to meet international safety standards.
●
IEC61010-1.IEC61010-031:2002 & IEC61010-2-032
Measurement Category (CAT) IV 600V
Pollution Degree 2
D ouble molded main body provides comfortable
●
single handed grip
Data Hold Function
●
L CD Backlight function to facilitate working at
●
dimly lit situations.
REL function to indicate measurement variation.
●
(Current, voltage, Resistance measurement)
M IN/MAX function enables easy reading of min &
●
max value during measurement.
With Continuity & Diode Check Function
●
N CV Non Contact Voltage
● （ ）
check.
600V input protection.
●
Sleep function to extend battery life.
●
With Bar Graph, 6039 counts
●
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
R ead through and understand the instructions
●
contained in this manual before using the
instrument.
K eep the manual at hand to enable quick
●
reference whenever necessary.
T he instrument is to be used only in its intended
●
applications.
U n d e r s t a n d a n d f o l l o w a l l t h e s a f e t y
●
instructions contained in the manual.
Failure to follow the instructions may cause injury,
instrument damage and/or damage to equipment
under test. Kyoritsu is by no means liable for
any damage resulting from the instrument in
contradiction to this cautionary note.
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.
D ANGER is reserved for conditions and actions
that are likely to cause serious or fatal injury.
W ARNING is reserved for conditions and actions
that can cause serious or fatal injury.
C AUTION is reserved for conditions and actions
that can cause injury or instrument damage.
3-2. General Specification
Mode of operation : ∑ mode
● Δ
85%)
〜
Display : max. 6039 counts
●
(Frequency: 9999) & Bar graph
O ver-range indication : "OL" displayed when exceeding
●
the measuring range. (except for AC/DCV and 1000A
Function)
Range switching :
●
Auto-ranging / Voltage, Resistance Range
Single range / Continuity, Diode check and DUTY
Sample rate : three times per second
●
F unctional construction :
●
OFF/ACA/DCA/ACV/DCV/
Ω
K eys :
●
SELECT(AC/DC switching & /
Ω
Hz/DUTY, MIN/MAX, HOLD/ Back Light
P ower source : DC3V/ R03(UM-4) x 2pcs
●
L ow battery warning : "
●
2.4V
±
Ω）
T emperature & humidity : 23
● ℃ ±
accuracy guaranteed 85% or less (no condensation)
O perating temperature :0 40
● 〜
& humidity range 85% or less (no condensation)
Storage temperature : -20
● 〜
& humidity range 85% or less (no condensation)
Current consumption : approx. 12 mA
●
Ω）
Sleep Function : Automatically powered off in about
●
15 min after the last Function switch operation.
P ress any key or rotate the Function Switch from
OFF to any position to exit from the Sleep state.
Location for use
●
Outdoor use, Altitude up to 2000m
Applicable Standards
●
IEC 61010-1, 61010-2-032, 61010-2-033
Measurement CAT IV 600V Pollution degree 2
IEC 61010-031
EMC EN 61326-1
：
EN 55022
・
EN 61000-4-2 (performance criterion B)
・
EN 61000-4-3 (performance criterion B)
・
RoHS EN 50581
● ：
30
Ω
Overload Protection
●
Current Range :1200A AC/DC/ 10 sec
Voltage Range : 720V AC/DC/ 10sec
Resistance Range : 600V AC/DC/ 10sec
Withstand Voltage
●
6720V AC TRMS 50/60Hz / 5 sec
（ ）
(between Jaws and electrical circuit/ between internal
circuit and enclosure)
Insulation Resistance : 10M
● Ω
between electrical circuit and enclosure
（
Conductor size
●
approx. 40mm
M arks 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
This instrument satisfies the marking requirement
defined in the WEEE Directive (2002/96/EC).
Function for wiring
This symbol indicates separate collection for
electrical and electronic equipment.
N ever make measurement on a circuit in which
●
voltage over AC600V exists.
D o 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.
T ransformer 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.
N ever attempt to use the instrument if its surface
●
or your hand is wet.
D o 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.
T he 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.
V erify proper operation on a known source before
●
use or taking action as a result indication of the
instrument.
K eep your fingers and hands behind the protective
●
fingerguard during measurement.
N ever attempt to make measurement if any
●
abnormal conditions, such as broken case and
exposed metal parts are found on the instrument.
D o not rotate the Function Switch while the test
●
leads are being connected.
D o not install substitute parts or make any
●
modification to the instrument. For repair or
re-calibration, return the instrument to your local
distributor from where it was purchased.
D o not try to replace the batteries if the surface
●
of the instrument is wet.
D isconnect all the cords and cables from the
●
object under test and power off the instrument
before opening the Battery Cover for Battery
replacement.
Dimension
●
approx. 254(L)
×
Weight : approx.: 310g
●
Accessories
●
Test Leads
Battery R03
Instruction manual English, Japanese / 1pce
Carriyng Case Model 9094/ 1pcs
3-3. Function Keys
The " " mark shows available function at each Range.
●
DC Current Measurement
HOLD SELECT ZERO
/ / ), REL ,
Δ
ACA
●
ACV
●
DCA
●
" mark is displayed at
DCV
●
0.15V or less.
Ω ●
5 , relative humidity
℃
-
, relative humidity -
℃
60 , relative humidity
℃
4. Preparation for measurement
4-1. Checking Battery Voltage
Set the Function Switch to any position other than
" " . When the display is clear without "
OFF
showing, battery voltage is enough. When the display
is blank or "
BATT
batteries according to Section 7, Battery Replacement.
The Sleep feature automatically powers the
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
case, turn the switch back to the "
then to any other position, or press any key. 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
position, the instrument is set to the correct
measurement mode,
and the Data hold function is disabled. Otherwise,
desired measurement cannot be made.
or more/ 1000V
）
●
●
●
●
●
●
●
●
DANGER
●
●
●
Measurement Category
To ensure safe operation of measuring instruments,
IEC 61010 establishes safety standards for various
electrical environments, categorized as O to CAT IV,
and called measurement categories. Higher-numbered
categories correspond to electrical environments with
greater momentary energy, so a measuring instrument
designed for CAT III environments can endure greater
momentary energy than one designed for CAT II.
O
CAT II
CAT III
WARNING
CAT IV
5. Measurement
82(W) 36(D)mm 5-1. AC Current Measurement
×
●
Model 7066A / 1 set
UM-4 / 2pcs
（ ）
●
●
Hz/ MAX/
●
DUTY MIN
● ● ● ●
●
-
● ● ●
-
● ● ●
(1) S et the Function Switch to "
- -
● ●
-
● ● ●
A C has been selected by default; press the SELECT
- - -
●
- - -
●
(2) P ress the trigger to open the transformer jaws and
" mark,
BATT
" mark is indicated, replace the
CAUTION
Hz/DUTY
Range and 350A or more at AC1000A range.
●
" . To operate the instrument in this
" position,
OFF
5-2. DC Current Measurement
●
●
●
(1) S et the Function Switch to "
D C mark is displayed at the upper left on the
V erify proper operation on a known source before
use or taking action as a result of the indication of
the instrument.
U se appropriate personal protective equipment
such as insulating gloves, Insulating boots, and
safety glasses.
S top using the test lead if the outer jacket is
damaged and the inner metal or color jacket is
exposed.
CAUTION
S et the Function Switch to an appropriate position
before starting measurement.
F irmly insert the test leads.
D isconnect the test leads from the instrument for
current measurement.
D o not expose the instrument to the direct sun,
high temperature and humidity or dewfall.
A ltitude 2000m or less. Appropriate operating
temperature is within 0 and 40 .
℃ ℃
T his instrument isn t dust & water proofed. Keep
away from dust and water.
B e 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.
U se a cloth dipped in water or neutral detergent
for cleaning the instrument. Do not use abrasives
or solvents.
: C ircuits which are not directly connected
to the mains power supply.
: E lectrical circuits of equipment connected
to an AC electrical outlet by a power cord.
: P rimary electrical circuits of the
equipment connected directly to the
distribution panel, and feeders from the
distribution panel to outlets.
: T he circuit from the service drop to the
service entrance, and to the power meter
and primary over-current protection device
(distribution panel).
O: Device which is
not directly
connected to the
mains power supply
DANGER
N ever make measurement on a circuit in which
voltage over AC600V exists to avoid getting
electrical shock.
T ransformer 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.
D o not make measurement with the Battery Cover
removed.
D isconnect the test leads from the instrument for
current measurement.
K eep your fingers and hands behind the barrier on
the instrument during a measurement.
" or "
600A 1000A
position.
key, when DC has been selected, to change it to
AC. AC mark is displayed at the upper left on the
display.
clamp them onto the one conductor under test, then
take the reading on the display. Pressing the "
" Key switches the indication in following
DUTY
sequence.
AC Current ⇨ Hz ⇨ DUTY
Function requires 60A or more at AC600A
CAUTION
M ax conductor size for KEW2055 is approx
dia. 40mm. During current measurement, keep
the trans former jaws fully closed. Other wise,
accurate measurements cannot be taken.
DANGER
N ever make measurement on a circuit in which
voltage over DC600V exists to avoid getting
electrical shock.
D o not make measurement with the Battery Cover
removed.
K eep your fingers and hands behind the barrier on
the instrument during a measurement.
" or "
600A 1000A
position. AC has been selected by default; press
the SELECT key, when AC has been selected, to
change it to DC.
display.
"
Hz/
"