KYORITSU KEW2127R Instruction Manual

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INSTRUCTION MANUAL
DIGITAL CLAMP METER
KEW2127R
1. Safety Warnings
WARNING
● Read through and understand the instructions contained in this manual before using the 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 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.
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 electrical circuits of equipment connected to an AC
electrical outlet by a power cord.
CAT I II Primary electrical circuits of the equipment connected directly
to t he d istribution panel, and feeders from t he d istribution panel to outlets.
to t he p ower meter and p rimary ov er c urrent pr otection device (distribution panel).
This instrument is designed for CAT IV 300 V/ CAT III 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.
DANGER
● Never make measurements under the circumstances exceed the designed measurement category and the rated voltage of the instrument and the test leads.
● Do not at tempt t o make measurement i n t he presence of flammable gasses. Otherwise, the use of the instrument 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 the maximum allowable 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 to keep your fingers and h ands f rom touchi ng an object under t est. K eep y our f ingers an d hands be hind t he
barriers during measurement.
WARNING
● 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 proper operation on a k nown source before use or take action as a result of the indication of the instrument.
Firmly at tach the caps t o t he test leads when 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 categ ory & v oltage t o earth either of them belong to is applied.
● Do not r otate t he Function S witch if t he i nstrument and th e equipment under test are connected.
● Do not install substitute parts or make any modification to the instrument. For repair or re-calibration, return the instrument to
your local KYORITSU distributor.
CAUTION
● Use of t his instrument i s limited to domestic, commercial 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.
NOTE
● The LCD shows some digits at the ACV and t he DCV ranges even while the test leads are open. In addition, the LCD shows some di gits instead of 0 when s hort-circuiting t he t est leads. However, these phenomena don’t affect measurement results.
● A r esistance m easurement t akes time to settle the reading if
there are high resistance or capacitance components.
2. Specification
Temperature: 23 ± 5°C, Humidity: 45 - 75%
ACA / RMS (Auto Range)
Range
Display Range
Accuracy (sine wave)
60A
0.00, 0.06 – 62.99A
±1.5 %rdg±4dgt (45-65Hz) ±2.0 %rdg±5dgt (40-1kHz)
600A
57.0 – 629.9A
1000A
570 – 1049A
Guaranteed accuracy: 0.1A - 1000A Input protective current: AC1200A
ACV (Auto Range)
Range
Display Range
Accuracy (sine wave)
60.00V
0.00 – 62.99V
±1.5 %rdg±4dgt (40-1kHz)
600.0V 57.0 – 629.9V
±1.0%rdg±2dgt (45-65Hz) ±1.5%rdg±4dgt (40-1kHz)
Guaranteed accuracy: 0.1V – 600V900Vpeak or less Input protective voltage: AC/DC720V 10 sec
Hz Frequency – AC measurement (Auto Range)
Range
Display Range
Accuracy (sine wave)
999.9Hz
0.0 – 999.9Hz
±0.1 %rdg±3dgt
9.999kHz
0.950 – 9.999kHz
Guaranteed accuracy: 20Hz – 9.9kHz Trigger threshold: 4A or more (ACA), 2V or more (ACV)
DCV (Auto Range)
Range
Display Range
Accuracy
60.00V
0.0 - ±62.99V
±1.0 %rdg±3dgt
600.0V
±57.0V - ±629.9V
±1.2 %rdg±3dgt
Guaranteed accuracy: 0V – ±600V ACV/DCV Input impedance: approx. 10MΩ
Resistance (Auto Range)
Range
Display Range
Accuracy
600.0Ω
0.0 - 629.9Ω
±1.0 %rdg±5dgt
6.000kΩ
0.570 - 6.299kΩ
±2.0 %rdg±3dgt
60.00kΩ
5.70 - 62.99kΩ
600.0kΩ
57.0 - 629.9kΩ
6.000MΩ
0.570 - 6.299MΩ
±3.0 %rdg±3dgt
40.00MΩ
5.70 - 41.99MΩ
±5.0 %rdg±3dgt
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
Display Range
Accuracy
600.0Ω
0.0 - 629.9Ω
Bz threshold value < 90Ω
Open-loop voltage: less than 3V Measurement current: less than 1mA
Capacitance (Auto Range)
Range
Display Range
Accuracy
1.000µF
0.000 - 1.049µF
±3.0 %rdg±15dgt
10.00µF
0.95 - 10.49µF
±3.0 %rdg±10dgt
100.0µF
9.5 - 104.9µF
Guaranteed accuracy: 0µF - 100µF
Diode
Range
Display Range
Accuracy
2.000V
0.000 - 2.099V
±4 %rdg±5dgt
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)
●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 CAT IV 600V / CAT III 1000V w/o caps CAT II 1000V
EN61326 (EMC)
within five times the rated accuracy.
EN50581 (RoHS)
enclosure or circuit and enclosure
●IP rating: IP40 (IEC60529)
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
(no condensation)
●Power source : DC3V R0 3 / LR03 (AAA) ×2
●Current consumption : < 4mA (LED for NCV OFF)
< 8mA (LED for NCV ON)
●Battery life (ACA, continuous, no load, with R03):
approx. 170 hours (LED for NCV OFF) approx. 70 hours (LED for NCV ON)
Trigger
Cap Barrier of Test Leads
SELECT Key
V/
Ω Terminal
HOLD Key
Barrier
Function Switch
Current Sensor
Wris t Strap
COM
Terminal
LCD
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Beeps less than 90Ω
Screw
●Dimension, Weight: 204(L)×81(W)×36(D)mm, approx. 230g (including batteries)
●Accessories: Test leads Model 7066A 1set /Battery R03(AAA) 2pcs /Instruction manual 1pce /Carrying case Model 9079 1pce
3. ACA (PEAK / Frequency) Measurement
DANGER
●Disconnect t he t est l eads f rom t he i ns
trument w hen
performing a test.
●Do not exceed the r ated v oltage ( 600V) and the ca tegory ratings of the ins trument.
●Keep your fingers and hands behind the barrier during
measurement.
measurement, set the switch to ACA and press the SELECT key.
conductor (Dia, 33mm max.) under test.
NOTE
4. ACV / DCV (PEAK / Frequency) Measurement
DANGER
●Before st arting a m easurement, en sure t hat t he F unction switch is set to the appropriate position.
●Do not exceed the r ated v oltage (600V) an d the cat egory ratings of the ins trument.
●Keep your fingers and hands behind the barrier during
measurement.
frequency measurement, s et the switch to ACV and pr ess t he SELECT key. (Frequency is ACV only)
(2) Firmly connect the test leads to V/Ω and COM terminals.
NOTE
If the connection is reversed, the LCD indicates the “ – “ mark (DCV measurement)
5. R esistance / Capacitance ( Continuity / Diod e) Measurement
WARNING
Never use the instrument on an energized circuit. Discharge
the capacitor before starting a capacitance measurement.
Continuity measurement, set the switch to Resistance and press the SELECT k ey. F or D iode m easurement, s et t he s witch t o Capacitance and press the SELECT key.
(2) Firmly connect the test leads to V/Ω and COM terminals.
NOTE
● LCD shows “OL” when the test leads are open.
(except for capacitance measurement)
● The LCD shows “OL” if the test lead connection is reversed for diode
measurement.
6. Other Functions
● Data Hold
Press the Hold key. The LCD shows “ ” mark and the reading will be held.
Press the Data Hold Key again to release the display.
● Backlight function
Press the HOLD key 1 sec or longer to turn on the backlight. Press
the HOLD key anot her 1 s ec or longer t o t urn i t of f. T he l ight automatically turns off in 1 min.
● Low battery indication
operating voltage.
● Sleep Function Automatically powers off the instrument in about 10min after the last
switch oper ation. B uzzer b eeps f i ve t imes one m inute bef or e entering into the Sleep mode, and also one time just before entering into t he mode. To exit from the Sleep mode, rotate the Function switch or press any key. To d isable the Sleep function, pr ess the HOLD key and power on the instrument. Confirm that the LCD shows “ “about 1 sec. Sleep function is disabled in the PEAK hold mode.
● PEAK Hold (PEAK) functio n Press the SELECT key on ACA, ACV or DCV function to start PEAK
measurement. T he LC D s hows “ “ and updat es t he m a x measured value repeatedly during a measurement.
Function
Range
Display Range
Response time
ACA (Auto Range)
999.9A
0.0, 0.6 – 999.9A
10ms (sine wave)
1500A
1000 – 1574A
ACV 900V 0.0, 0.6 – 944.9V
10ms (sine wave)
DCV 600V
0.0, ±0.6 – ±629.9V
1ms
On A CA or A CV f unction, t he d isplayed value is peak v alue. Therefore, when measuring a sine wave, the displayed value will be √2 of the rms PEAK value.
Peak v alue d isplayed on D CV f unction has l ar ger abs olute value.When a negative voltage value has a larger absolute value than a positive voltage value, the n egative voltage v alue will be displayed.
● NCV Function Red LED for NCV lights up at All functions except for OFF when an
electric field exceeding AC70V is detected by the sensor installed in Current Sensor.
without touching them.
DANGER
● The LED may no t li ght up d ue t o install ation condition of electrical circuit or equipment. Never touch the circuit under test to avoid p ossible danger ev en i f t he L ED f or N CV doesn’t light up.
● The w ay y ou h old or p lace the i nstrument o r ext ernal
voltages may affect NCV indication.
NCV Sensor can detect electrical field only from the direction indicated in the below figure. Put the fixed element (left side) closer to the conductor under test. Detection against in-wall outlet is impossible.
7. Battery Replacement
WARNING
● Replace t he b atteries w hen a Low B attery V oltage warning " " m ark i s indicated on t he LC D. Otherwise, pr ecise measurement c annot be m ade. If batteries are completely exhausted, the LCD goes blank without showing " " mark.
● Do not try to replace the batteries if the surface of the instrument is wet.
● Disconnect the test leads from the object under test and power off t he i nstrument bef ore open ing t he B attery Compartment
Cover for battery replacement.
CAUTION
● Do not mix old and new batteries.
● Install bat teries in correct polarity as indicated i n the Battery
Compartment.
(1) Set the Function Switch to "OFF" position. (2) Unscrew and r emove t he B attery Compartment C over on the
instrument.
(3) Replace the batteries observing correct polarity. Use new two AAA
1.5V batteries.
(4) Install the Battery Compartment Cover and tighten the screw.
01-17 92-2281B
Red LED lights up in electric
field exceeding AC70V.
Black
Red
ACV
DCV
Black
Red
Resistance
Continuity
Capacitance
Diode
Press the SELECT key to toggle functions
ACA
PEAK
Frequency
Default
Correct
Incorrect
Press the SELECT key to toggle functions
ACA
PEAK
Frequency
Default
DCV
PEAK
Default
Resistance
Default
Continuity
Capacitance
Default
Diode
Press the SELECT key to toggle functions
DISTRIBUTOR
Kyoritsu reserves the rights to change specifications or designs described in this manual without notice and without obligations.
Maximum R MS v alue
(Indicated value)
Input waveform
(RMS)
0V
20V
-60V
Input waveform
Replace the batteries
with new ones when
this mark appears.
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