KYORITSU KEW 1061 User manual

INSTRUCTION MANUAL
DIGITAL MULTIMETER
KEW 1061
／
1062

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Thank you for purchasing our Model KEW1061, KEW1062 Digital Multimeter.
This user’s manual describes the specifications and handling precaution for this Digital
Multimeter.
Before using this Digital Multimeter, thoroughly read this manual to get a clear understanding
on proper use.
Always observe the following instructions.
Failure to do so may impair the protection provided by the instrument and probes, and may
result in electrical shock or other dangers that may lead to serious injury or the loss of life.
KYORITSU is in no way liable for any damage resulting from the user’s mishandling of the
product.
For safe use of this product, the following safety symbols are used on the product:
nAbout This Manual
• Everyefforthasbeenmadetoensureaccuracyinthepreparationofthismanual.
However, should any errors or omissions come to the attention of the user, please contact
KYORITSU.
• Thecontentsofthismanualaresubjecttochangewithoutpriornoticebecauseof
improvement in performance or function.
• Allrightsreserved.Nopartofthismanualmaybereproducedinanyfromwithout
KYORITSU'S written permission.

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Regarding Safe Use of This Product
For safe use of this product, the following safety symbols are used on the product and manual:
WARNING
This indicates that the operator must refer to an explanation in the
instruction manual in order to avoid the risk of serious injury or the loss
of life.
CAUTION
This indicates that the operator must refer to an explanation in the
instruction manual in order to avoid the risk of injury or damage to the
product.
Note This indicates information that is essential for handling the instrument
or should be noted in order to familiarize yourself with the instrument’s
operating procedures and/or functions.
Danger! Handle with Care
This symbol indicates that the operator must refer to an explanation in the
instruction manual in order to avoid risk of injury or death of personnel
or damage to the instrument.
Double Insulation
This symbol indicates double insulation or reinforced insulation.
Direct Current
This symbol indicates DC voltage/current.
Alternating Current
This symbol indicates AC voltage/current.
DC/AC
This symbol indicates AC and DC.
Fuse
This symbol indicates a fuse.
Battery
This symbol indicates a battery.
Ground
This symbol indicates ground (earth).

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WARNING
nAlways observe the following instructions. Failure to do so may result in
electrical shock or other dangers that may lead to serious injury or the loss of
life.
Test leads / Test leads with crocodile clip (optional accessory)
• UsetheprobessuppliedbyKYORITSUwiththisinstrument.
• Donotusetestleads/testleadswithcrocodileclipthathavedeterioratedoraredefective.
Check test leads/test leads with crocodile clip continuity.
• Disconnecttestleads/testleadswithcrocodileclipfromthecircuitundertestbeforeopening
the casing to replace the batteries or for any other reason.
• Disconnecttestleads/testleadswithcrocodileclipfromthecircuitundertestbefore
attaching/detaching the test leads/test leads with crocodile clip to/from the instrument.
• Disconnecttestleads/testleads withcrocodileclipfrom theinstrumentbeforeopening the
casing to replace the batteries or for any other reason.
• Acapisprovidedonthetipofatest lead.
Use a test lead with the cap on for safety (safety standards: IEC 61010-031).
•Do not use the crocodile clip of test leads being loosen or removed conditions.
Casing
• Donotusetheinstrumentifthereisanydamagetothecasingorwhenthecasingis
removed.
Fuses
• Usefusesofthespeciedratingwhenthefuseisreplaced.
Operating Environment
• Do not operate the instrument in an atmosphere where any ammable or explosive gas is
present.
• Avoidusing theinstrument ifithasbeenexposed torain ormoisture orif yourhandsare
wet.
Disassembly
• Noperson,exceptpersonnelfromKYORITSU,isauthorizedtodisassemblethisinstrument.

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Contents
1. Overview........................................................................................................... 65
2. Measurement Category ..................................................................................... 66
3. Specications .................................................................................................... 67
3.1 GeneralSpecications ............................................................................ 67
3.2 Accuracy ................................................................................................. 70
4. Operation .......................................................................................................... 78
4.1 Precautions Before Measurement ........................................................... 78
4.2 Components ............................................................................................ 79
4.3 Measuring Instructions............................................................................ 84
4.3.1 AC Voltage Measurement ................................................................ 84
4.3.2 DC Voltage Measurement ................................................................ 84
4.3.3 DC+AC Voltage Measurement ........................................................ 84
4.3.4 DC, AC Voltage Dual Display ......................................................... 85
4.3.5 Resistance Measurement.................................................................. 85
4.3.6 LowPower-Ω................................................................................... 86
4.3.7 Continuity Check ............................................................................. 86
4.3.8 Diode Test ........................................................................................ 87
4.3.9 Temperature Measurement............................................................... 88
4.3.10 Current Measurement ..................................................................... 89
4.3.11 DC+AC Current Measurement....................................................... 90
4.3.12 DC, AC Current Dual Display........................................................ 91
4.3.13 Capacitor Measurement.................................................................. 91
4.3.14 Frequency Measurement, Duty cycle ratio..................................... 92
4.3.15
FunctiontochangeRMSdetectionto/fromMEANdetection
mode ........................................................................................................93
4.3.16Functiontoturnthelteron/off ..................................................... 93
4.3.17 AUTO HOLD Function.................................................................. 94
4.3.18 PEAK HOLD Function .................................................................. 95
4.3.19 Relative and percentage calculation ............................................... 95
4.3.20 Decibel calculation ......................................................................... 96
4.3.21 MIN/MAX/AVGFunction ............................................................. 97
4.4 Memory Function.................................................................................... 98
4.5 AUTO POWER OFF Function............................................................. 101
4.6 Set-up Function..................................................................................... 102
4.7 AdditionalfunctionssimplysetwhenPOWERON............................. 105
4.8 Averaging Function............................................................................... 105
4.9 5000 display mode ................................................................................ 106
4.10 LCD Check ......................................................................................... 106

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5. User Calibration Function............................................................................... 107
6. Battery and Fuse Replacement ....................................................................... 112
6.1 Battery Replacement............................................................................. 112
6.2 Fuse Replacement ................................................................................. 113
7. Calibration and Maintenance .......................................................................... 114
8 Disposing the Product..................................................................................... 114

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1. Overview
lFast and more accurate measurement
The KEW1061 and KEW1062 digital multimeters use Σmodulation for A/D conversion,
which enable fast and more accurate measurement.
lDisplay
5-digit (LCD)
Maximum Reading: 50000
Bar graph indicator
lSupports a variety of measurement function
Measurement function
DC Voltage, AC Voltage, DC Current, AC Current, Resistance, Frequency, Temperature,
Capacitor, Duty cycle ratio, Decibel (dBV, dBm), Continuity Check, Diode Test,
 LowPower-Ω*
Other functions
 DataHold(D•H),AutoHold(A•H),PeakHold*(P•H),RangeHold(R•H),
Maximum value (MAX), Minimum value (MIN), Average value (AVG),
Zero Adjustment (Capacitor, Resistance), Relative values, Save to Memory,
LCD backlight.
  LowPower-Ω:Measuresresistanceunderlowmeasurementcurrent.
  *:FormodelKEW1062only
lSwitching detection modes
Effective value (root mean square value) detection (RMS) and mean value detection (MEAN)
can be switched during AC voltage or AC current measurement (KEW1062 only).
l Low-passlter
 Thelow-pass lter canbe switched on/offduringAC voltage orACcurrent measurement
(KEW1062 only).
lCommunication: optional communication package is required
• MeasurementdatacanbetransferredtoaPCusinganoptionalUSBcommunicationset.
The data can be read by certain applications to make trend graphs or can be converted
intoExcelles.
• Thedatacanalsobeoutputfromanoptionalprinterviaanoptionalprintercommunication
set.
lSafety design
Complied standards: CE standards
 Usesacurrent-inputterminalshutterforpreventingwronginput.
 Useshigh-performanceUL-standardfuses.

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2. Measurement Category
WARNING
nMeasurement Category (CAT.)
The restrictions on the maximum voltage level for which the KEW1061, KEW1062 can
beused,dependonthemeasurementcategoriesspeciedbythesafetystandards.
Do not apply any input level higher than maximum allowable input.
AC/DC 1000V CAT. III
AC/DC 600V CAT. Ⅳ
Measurement
category Description Remarks
ⅠCAT. I For measurements performed on circuits not
directly connected to MAINS.
ⅡCAT. II For measurements performed on circuits directly
connected to the low voltage installation.
Appliances, portable
equipment, ect.
ⅢCAT.III For measurements performed in the building
installation.
Distribution board,
circuit breaker, ect.
ⅣCAT. ⅣFor measurements performed all the source of the
low-voltage installation.
Overhead wire,
cable systems, ect.
Internal Wiring
Outlet
Entrance
Cable
Fixed Equipment,
etc.
Distribution
Board
CAT. II
Equipment
CAT.I
CAT.IV
CAT. III
Note
Radiation immunity affects the accuracy of the KEW1061, KEW1062 under the
conditionsspeciedinIEC61326-1.
 Useofthisinstrumentislimitedtodomestic,commercial,andlightindustry
applications. If equipment generating strong electromagnetic interference is located
nearly, the instrument may malfunction.

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3. Specications
3.1 GeneralSpecications
Measurement function:
DC Voltage, AC Voltage, DC Current, AC Current, Resistance,
Frequency, Temperature, Capacitor, Duty cycle ratio,
Decibel(dBV,dBm),ContinuityCheck,DiodeTest,LowPower-Ω*
Otherfunctions: DataHold(D•H),AutoHold(A•H),PeakHold*(P•H),
RangeHold(R•H),Maximumvalue(MAX),Minimumvalue(MIN),
Average value (AVG), Zero Adjustment (Capacitor, Resistance),
Relative values, Save to Memory, LCD backlight.
 LowPower-Ω:Measuresresistanceunderlowmeasurementcurrent.
 *:FormodelKEW1062only
Measuring method: Σmodulation
Display: 5-digit (LCD)/7-segment
Maximum Reading: 50000
Polarity Indicator: “–” Appears automatically when the polarity is
negative
Overrange Indicator: “ OL ”
Low-battery Indicator: “ ” Appears when the batteries become
low
Measurement cycle: 6 times per second
(except frequency measurement: one times per second, Resistance
measurement : four times per second, capacitor measurement (50mF):
max.0.03timepersecond)
Bar graph display 15 times per second
Operating temperature and humidity ranges:
-20 to 55ºC, 80%RH or less (no condensation)
70%RH or less at 40 to 55ºC.
Storage temperature and humidity ranges:
-40 to 70ºC, 70%RH or less (no condensation)
Temperaturecoefcient:
(Accuracyat23±5ºC)×0.05/ºCorless
At -20 to 18ºC and 28 to 55ºC
When continuously DCV and DCA measuring, add 1digit / ºC
(exceptfor50mV,5A,10Arange,add3digits/ºC).
Power supply: AA-size (R6) 1.5V batteries: 4

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Battery life: Approximately 120 hours
(Operating hours of alkaline batteries when in DC voltage-mode.)
Note: The battery life varies depending on the operating conditions.
Insulationresistance:1000VDC,100MΩormore
Withstandvoltage: 6.88kVrmsACforveseconds
(across input terminals and casing)
Externaldimensions: Approximately192(L)×90(W)×49(D)mm
Weight: Approximately 560g (including batteries)
Complied standards: Safety standards
  IEC61010-1,IEC61010-031
CAT.III (Max. input voltage: AC/DC1000V)
CAT.IV (Max. input voltage: AC/DC600V)
Pollution degree 2, indoor use,
2000m max. above sea level
EMC standards
  IEC61326-1ClassB
Effect of radiation immunity:
 Intheradio-frequencyelectromagneticeldof3V/m,accuracyis
withinvetimestheratedaccuracy.