KYORITSU KEW2127R Instruction Manual

INSTRUCTION MANUAL
DIGITAL CLAMP METER
KEW2127R
Current Sensor
Barrier
Function Switch
SELECT Key
HOLD Key
LCD
V/Ω Terminal
COM Terminal
Wrist Strap
Barrier of Test Leads
Cap

1. Safety Warnings

This i nstrument has been designed, m anufactured and
according to IEC 61010: Safety requirements for Electronic measuring
apparatus, a nd de livered i n t he bes t c ondition af ter p assed t he
inspection. This instruction manual contains warnings and safety rules
which must be obs erved by t he us er t o ensure s afe ope ration of t he
instrument and retain it in safe condition. Therefore, read through these
operating instructions before using the instrument.
WARNING
● Read t hrough and understand t he instructions contained in t his
manual before using the instrument.
● Keep t he m anual at hand t o enable qu ick r eference w henever
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 fo llow t he abov e instructions m ay i mpair t he p rotection
provided by the instrument and test leads, and 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 th e r elated p arts in t he m anual f or s afe op eration of t he
instrument. It is essential to read the instructions wherever the symbol
appears in the manual.
Trigger
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.
● Marks listed below are used on this instrument.
User must refer to the manual.
Instrument with double or reinforced insulation
Indicates t hat t his instrument c an c lamp on bar e c onductors
when measuring a v oltage c orresponding t o t he applicable
measurement category, which is marked next to this symbol
AC D C G round (Earth)
This instrument i s s ubject t o WEEE D irective ( 2002/96/EC).
Please contact our dealer near you at disposal.
Measurement Category
O
Circuits which are not directly connected to the mains power supply.
CAT I I
Primary el ectrical circuits of eq uipment c onnected to a n A C
electrical outlet by a power cord.
CAT III
Primary electrical circuits of the equipment connected directly
to t he d istribution panel, and f eeders f rom t he d istribution
panel to outlets.
CAT IV
The circuit from the service drop to the service entrance, and
to t he p ower meter and p rimary ov er c urrent pr otection
device (distribution panel).
This i nstrument i s d esigned f or C AT IV 3 00V/ C AT I II 600V. Te st
leads M -7066A w ith t he su pplied ca ps are d esigned f or C AT
IV600V/ CAT III 1000V and without the caps are for CAT II 1000V.
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● Never make measurements under the circumstances exceed the
tested
designed m easurement c ategory and the r ated v oltage of t he
instrument and the test leads.
● Do not at tempt t o make measurement i n t he presence of
flammable gas ses. O therwise, t he us e of t he i nstrument 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 t he maximum al lowable input of any measuring
range.
● Never open the Battery cover during a measurement.
● To avoid electrical shock by touching the equipment under test or
its surroundings, be sure to wear insulated protective gear.
● Never measure current while the test leads are inserted into the
input terminals.
● Test leads to be used for voltage measurements shall be rated as
appropriate for Measurement Category III or IV according to IEC
61010-031 and shall have a voltage rating of 600V or higher.
● Barriers on t he instrument body and the t est leads pr ovide
protection t o k eep y our f ingers and h ands f rom t ouching an
object under t est. K eep y our f ingers an d hands be hind t he
barriers during measurement.
● Never attempt to make measurement if any abnormal conditions,
such as broken case and exposed metal parts are found on the
instrument or test leads.
● Verify p roper ope ration o n a k nown s ource bef ore us e o r t ake
action as a result of the indication of the instrument.
● Firmly at tach t he cap s t o t he t est l eads w hen p erforming
measurements in CAT III or higher test environments. When
KEW2127R and t he t est l eads ar e co mbined an d used
together, w hichever i s l ower cat egory & v oltage t o e arth
either of them belong to is applied.
● Do not r otate t he Function S witch if t he i nstrument and the
equipment under test are connected.
● Do not install s ubstitute p arts or m ake any m odification t o t he
instrument. F or r epair or r e-calibration, r eturn t he i nstrument t o
your local KYORITSU distributor.
● Use of t his instrument i s l imited t o domestic, c ommercial an d
light industry applications. Strong electromagnetic interference or
strong magnetic fields, generated by large currents, may cause
malfunction of the instrument.
● Connect the test leads to the terminals firmly.
● This instrument isn't water proofed. Keep away from water.
● Do not pull or twist the test leads to prevent the risk of damage.
● Power of f t he instrument af ter us e. R emove bat teries if t he
instrument is to be stored and will not be in use for a long period.
● Do no t ex pose the instrument t o the direct s unlight, h igh
temperature and humidity or dewfall.
● Use a cloth dipped in water or neutral detergent for cleaning the
instrument. Do not use abrasives or solvents.
● The LC D s hows s ome digits at t he A CV and t he D CV r anges
even while the test leads are open. In addition, the LCD shows
some di gits instead of 0 w hen s hort-circuiting t he t est leads.
However, these phenomena don't affect measurement results.
● A r esistance m easurement t akes t ime t o settle t he reading i f
there are high resistance or capacitance components.

2. Specification

Temperature: 23 ± 5°C, Humidity: 45 - 75%
/
ACA RMS
Range Display Range
60A 0.00, 0.06 – 62.99A
600A 57.0 – 629.9A
1000A 570 – 1049A
Guaranteed accuracy: 0.1A - 1000A
Input protective current: AC1200A
ACV
Range Display Range
60.00V 0.00 – 62.99V
600.0V 57.0 – 629.9V
Guaranteed accuracy: 0.1V – 600V、900Vpeak or less
Input protective voltage: AC/DC720V 10 sec
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DANGER
Hz Frequency –
Range
999.9Hz
9.999kHz
Guaranteed accuracy: 20Hz – 9.9kHz
Trigger threshold: 4A or more (ACA), 2V or more (ACV)
DCV
Range
60.00V
600.0V
Guaranteed accuracy: 0V – ±600V
ACV/DCV Input impedance: approx. 10MΩ
Resistance
Range
600.0Ω
6.000kΩ
60.00kΩ
600.0kΩ
6.000MΩ
40.00MΩ
WARNING
Guaranteed accuracy: 0Ω - 40MΩ
Open-loop voltage: less than 3V
Measurement current: less than 1mA
Input protective voltage: AC/DC600V 10sec
(Resistance/ Continuity/ Capacitance/ Diode)
Continuity
Range
600.0Ω
Open-loop voltage: less than 3V
Measurement current: less than 1mA
Capacitance
Range
1.000µF
10.00µF
100.0µF
CAUTION
Guaranteed accuracy: 0µF - 100µF
Diode
Range
2.000V
Guaranteed accuracy: 0V - 2V, Open-loop voltage: < 3.5V
Measurement current: approx. 0.8mA (Vf = 0.6V)
●Measuring method: ⊿Σ modulation
●Over-range indication: OL
●Measurement cycle: 2.5 times per second
●Crest factor: less than 3 (45-65Hz)
Add ± 0.5%rdg±5dgt t o abov e s pecified accuracies. A pplicable
functions: ACA (less than 1500Apeak), ACV (900Vpeak or less)
NOTE
●Applicable Standards:
IEC 61010-1/ 61010-2-032/ 61010-2-033 (instrument)
Pollution degree 2, Indoor use, Altitude up to 2000m
CAT III 600V / CAT IV 300V
IEC 61010-031(Test leads Model 7066A)
w/ c aps
w/o caps
EN61326 (EMC)
In t he r adio-frequency e lectromagnetic f ield of 3V /m, ac curacy i s
within five times the rated accuracy.
EN50581 (RoHS)
(Auto Range)
●Withstand voltage: AC5160Vrms 5s ec between c urrent s ensor and
Accuracy (sine wave)
enclosure or circuit and enclosure
●IP rating: IP40 (IEC60529)
±1.5 %rdg±4dgt (45-65Hz)
●Insulation r esistance: >100MΩ /1000V between enclosure and
±2.0 %rdg±5dgt (40-1kHz)
electrical circuit
●Operating Temperature and humidity range: 0 to 40°C 85%RH or less
(no condensation)
●Storage Temperature and humidity range: -20 to 60°C 85%RH or less
(Auto Range)
(no condensation)
Accuracy (sine wave) ●Power source : DC3V R0 3 / LR03 (AAA) ×2
●Current consumption : < 4mA (LED for NCV OFF)
±1.5 %rdg±4dgt (40-1kHz)
±1.0%rdg±2dgt (45-65Hz)
●Battery life (ACA, continuous, no load, with R03):
±1.5%rdg±4dgt (40-1kHz)
approx. 170 hours (LED for NCV OFF)
approx. 70 hours (LED for NCV ON)
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AC measurement (Auto Range)
Display Range Accuracy (sine wave)
0.0 – 999.9Hz
±0.1 %rdg±3dgt
0.950 – 9.999kHz
(Auto Range)
Display Range Accuracy
0.0 - ±62.99V ±1.0 %rdg±3dgt
±57.0V - ±629.9V ±1.2 %rdg±3dgt
(Auto Range)
Display Range Accuracy
0.0 - 629.9Ω ±1.0 %rdg±5dgt
0.570 - 6.299kΩ
5.70 - 62.99kΩ ±2.0 %rdg±3dgt
57.0 - 629.9kΩ
0.570 - 6.299MΩ ±3.0 %rdg±3dgt
5.70 - 41.99MΩ ±5.0 %rdg±3dgt
Display Range Accuracy
0.0 - 629.9Ω Bz threshold value < 90Ω
(Auto Range)
Display Range Accuracy
0.000 - 1.049µF ±3.0 %rdg±15dgt
0.95 - 10.49µF
±3.0 %rdg±10dgt
9.5 - 104.9µF
Display Range Accuracy
0.000 - 2.099V ±4 %rdg±5dgt
CAT IV 600V / CAT III 1000V
CAT II 1000V
< 8mA (LED for NCV ON)