Használati útmutató Kyoritsu KEW 2055

Kyoritsu multiméter KEW 2055

Olvassa el alább 📖 a magyar nyelvű használati útmutatót Kyoritsu KEW 2055 (2 oldal) a multiméter kategóriában. Ezt az útmutatót 6 ember találta hasznosnak és 3.5 felhasználó értékelte átlagosan 4.9 csillagra

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Oldal 1/2
INSTRUCTION MANUAL
DIGITAL CLAMP METER
KEW 2055
１．Features
●
Designedtomeetinternationalsafetystandards.
 
IEC61010-1.IEC61010-031:2002&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.
●
WithContinuity&DiodeCheckFunction
●
NCV
（
Non Contact Voltage
）
Function for wiring
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
safeoperation 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
contained in this manual before using the
instrument.
●
Keep the manual at hand to enable quick
referencewhenevernecessary.
●
Theinstrumentistobeusedonly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 indicatedontheinstrumentmeansthat
theusermustrefertotherelatedpartsinthemanual
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.
●
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
Thisinstrumentsatisfiesthemarkingrequirement
defined in the WEEE Directive (2002/96/EC).
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 exposed conductive parts, however, extra
precaution should be taken to minimize the
possibilityofshorting.
●
Neverattempttousetheinstrumentif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.
●
Verify proper operation ona known source before
use or taking action as a result indication of the
instrument.
●
Keepyourfingersandhandsbehindtheprotective
fingerguard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.
 
●
Do not rotate the Function Switch while the test
leadsarebeingconnected.
●
Do 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.
●
Donot 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 offthe 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.
●
Use appropriate personal protective equipment
such as insulating gloves, Insulating boots, and
safetyglasses.
●
Stop using the test lead if the outer jacket is
damaged and the inner metal or color jacket is
exposed.
 
CAUTION
●
SettheFunctionSwitchtoanappropriateposition
beforestartingmeasurement.
 
●
Firmlyinsertthetestleads.
 
●
Disconnectthetestleadsfromtheinstrumentfor
currentmeasurement.
 
●
Do not exposethe 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 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 measuringinstrument
designedforCAT III environmentscanendure greater
momentaryenergythanonedesignedforCATII.
O
:Circuits which are not directly connected
tothemainspowersupply.
CAT II
: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
andprimaryover-currentprotectiondevice
(distributionpanel).
3. Specification
3-1. Measuring range & accuracy
(accuracyguaranteedat23
℃ ±
5
℃
.humidity45
〜
85%)
ACCurrent600A,1000AFunction
Function Measuring
Range Accuracy
600A 0-600.0A
±
1.5%rdg
±
5dgt
(50/60Hz)
±
3.5%rdg
±
8dgt
(40-400Hz)
1000A 0-1000A
DCCurrent600A,1000AFunction
Function Measuring
Range Accuracy
600A
0-600.0A
±
1.5%rdg
±
5dgt
1000A
0-1000A
ACVoltageFunction

（
Auto-ranging,Inputimpedance:approx.10M
Ω）
Range Measuring
Range Accuracy
6/60/600V 1-600.0V
±
1.3%rdg
±
4dgt(50/60Hz)
±
3.0%rdg
±
5dgt(40
〜
400Hz)
DCVoltageFunction

（
Auto-ranging,Inputimpedance:approx.10M
Ω）
Range Measuring
Range Accuracy
600mV/6/
60/600V 0-600.0V
±
1.0%rdg
±
3dgt
Resistance
（
Continuity/DiodeCheck
）
Function
Range Measuring
Range Accuracy
600
Ω
/6k/
60k/600k
Ω
6M
Ω
0-6M
Ω ±
1.0%rdg
±
5dgt
60M
Ω
6.00M-
60.00M
Ω±
5%rdg
±
8dgt
ContBuzzer 0-600.0
Ω
Thresholdvalue:60
Ω±
30
Ω
Diode Testvoltage:0-2V
Frequency/ DUTY Function
（
Auto-ranging f or
Frequency
）
Range Measuring
Range Accuracy
ACA 40Hz
−
400Hz
±
0.5%rdg
±
5dgt
ACV 1Hz
〜
10kHz
0.1-99.9%
(Pulsewidth/Pulseperiod)
±
2.5%rdg
±
5dgt
Note:Measurableinputsare:40Vrms@ACVor
60Arms@AC600A,350A@AC1000ARange
3-2. General Specification
●
Modeofoperation
 
:
Δ
∑mode
●
Display 
 
:max.6039counts

     
(Frequency:9999)&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Range
 
Singlerange/Continuity,Diodecheckand
DUTY
●
Samplerate
  
:threetimespersecond
●
Functionalconstruction:
 
OFF/ACA/DCA/ACV/DCV/
Ω
●
Keys  :
 
SELECT(AC/DCswitching&/
Ω
/ / ),REL
Δ
,
 
Hz/DUTY,MIN/MAX,HOLD/BackLight
●
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
 
&humidityrange85%orless(nocondensation)
●
Storagetemperature :-20
〜
60
℃
,relativehumidity
 
&humidityrange85%orless(nocondensation)
●
Currentconsumption:approx.12mA
●
SleepFunction:Automaticallypoweredoffinabout
 
15minafterthelastFunctionswitchoperation.
 
Press 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
●
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
ormore/1000V
 （
betweenelectricalcircuitandenclosure
）
●
Conductorsize
 
approx.40mm
●
Dimension
 
approx.254(L)
×
82(W)
×
36(D)mm
●
Weight:approx.:310g
●
Accessories
 
 
TestLeads Model7066A/1set
 
BatteryR03
（
UM-4
）
/2pcs
 
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 Hz/
DUTY MAX/
MIN
ACA
●●●●●
ACV
●
-
●●●
DCA
●●●
-
●
DCV
●
-
●
-
●
Ω●●●
-
●
-
●
---
-
●
---
4. Preparation for measurement
4-1. Checking Battery Voltage
Set the Function Switch to any position other than
"
OFF
".When thedisplayis clearwithout  "
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
The Sleep feature automatically powers the
instrumentoffinabout 15minafterthe lastswitch
or key operation. Therefore, the display may be
blankevenwiththeFunctionSwitch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,orpressanykey.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.
5. Measurement
5-1. AC Current Measurement
 
DANGER
●
Never make measurement on a circuit in which
voltage over AC600V exists to avoid getting
electricalshock.
●
Transformer jaw tips are designed not to short
the circuit under test. If equipment under test has
exposedconductiveparts,however,extraprecaution
should be taken to minimize the possibility of
shorting.
●
Do not make measurement with the Battery Cover
removed.
●
Disconnect the test leadsfrom the instrument for
currentmeasurement.
●
Keep yourfingersand handsbehindthe barrieron
theinstrumentduringameasurement.
(1)Set the Function Switch to "
600A
" or "
1000A
"
position.
AChasbeenselectedbydefault;presstheSELECT
key, when DC has been selected, to change it to
AC.AC mark isdisplayed at theupper left onthe
display.
(2)Pressthetriggertoopenthetransformerjawsand
clampthemontotheoneconductorundertest,then
take the reading on the display. Pressing the "
Hz/
DUTY
" Key switches the indication in following
sequence.
AC Current
⇨
Hz
⇨
DUTY
Hz/DUTY
 Function requires 60A or more at AC600A
Rangeand350AormoreatAC1000Arange.
 
CAUTION
●
Max 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.
5-2. DC Current Measurement
 
DANGER
●
Never make measurement on a circuit in which
voltage over DC600V exists to avoid getting
electricalshock.
●
DonotmakemeasurementwiththeBatteryCover
removed.
●
Keepyourfingersandhandsbehindthebarrieron
theinstrumentduringameasurement.
(1)Set the Function Switch to "
600A
" or "
1000A
"
position. AC has been selected by default; press
the SELECT key, when AC has been selected, to
changeittoDC.
DC mark is displayed at the upper left on the
display.
Barrier
O: Device which is
not directly
connected to the
mains power supply
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
andusedtogether,whicheverlowercategoryeitherof
thembelongstowillbeapplied.
Cap
Protective fingerguard
5-4. DC Voltage Measurement
 
DANGER
●
Never make measurement on a circuit in which
voltage over DC600V exists to avoid getting
electricalshock.
●
Do notmakemeasurementwith theBatteryCover
removed.
●
Keepyourfingersbehindtheprotectivefigerguard
ontheinstrumentduringmeasurement.
(1)SettheFunctionSwitchto"
DCV
"position.
(2)ConnecttheredtestleadtoV/
Ω
terminalandthe
blacktestleadtoCOMterminal.
(3)Connect the red and black test leads to the
positive (+)and negative (-) sides of the circuit
under test respectively. Take the reading on the
display. If the connection is reversed, the display
indicatesthe"-"mark.
5-5. Resistance/ Cont/ Diode Measurement
 
DANGER
●
Neverusetheinstrumentonanenergizedcircuit.
●
Do not make measurement with the Battery
Coverremoved.
Resistance
(1)Set the Function Switch to  "
Ω/ Cont/ Diode
"
position.
(2)ConnecttheredtestleadtoV/
Ω
terminalandthe
black test lead to COM terminal. Confirm "OL" is
indicatedon thedisplay,and thenshort-circuitthe
tipsoftestleadstomaketheindicationzero.
(3)Connect the test leads to the both ends of the
resistorundertest.
(4)Takethereadingonthedisplay.
 
CAUTION
●
Evenif shortthe testlead tips,indicatedvalue
may not be zero. But this is because of the
resistanceoftestleadsandnotafailure.
●
Whentestleadsareopen,"OL"isindicatedon
thedisplay.
●
Keep your fingersand hands behindthe barrier
duringmeasurement.
Continuity
(1)Set the Function Switch to  "
Ω/ Cont/ Diode
"
position. "
Ω
"  has beenselected by default; press
theSELECTkeytochangeitto"
Continuity
".
Resistance Cont Diode⇨ ⇨

(2)ConnecttheredtestleadtoV/
Ω
terminalandthe
black test lead to COM terminal. Confirm "
OL
" is
indicated on the display and short-circuit the tips
of test leads. Indication should become zero and
buzzersounds.
(3)Connect the test leads to the both ends of the
conductor under test. The buzzer sounds, if the
resistanceundertestis100
Ω
orless.
Diode
(1)Set the Function Switch to "
Ω/ Cont/ Diode
"
position. "
Ω
" has been selected by default; press
theSELECTkeytochangeitto"
Diode
"
Resistance Cont Diode⇨ ⇨
(2)ConnecttheredtestleadtoV/
Ω
terminalandthe
blacktestleadtoCOMterminal.
(3)ConnecttheredandblacktestleadstotheAnode
and Cathode of the diode under test respectively.
Take the readingon the display. If theconnection
isreversed,thedisplayindicates"
OL
".
 
CAUTION
●
Some ofdiodes cannotbe tested.Indication on
thedisplay willbe"OL".
 
(Zenerdiode, LEDand
soon)
6. Other functions
6-1. Sleep Function
(1)This is a function to prevent the instrument from
beingleftpoweredoninordertoconservebattery
life.
This function causes the instrument to enter
Sleep mode about 15 minutes after the last
key operation. To exit the Sleep mode, turn the
Functionswitchto"
OFF
",thentoanyotherposition,
orpressanyKey.
(2)SleepFunctionisdisabledwhen;MIN/MAX
Function is selected. Continuous measurement is
made with the Sleep Function being disabled. To
activate Sleep Function again, disable the MIN/
MAXFunction.
 
CAUTION
●
The instrument consumes small amount of
battery power in the Sleep mode. Set the
FunctionSwitchtotheOFFpositionafteruse.
6-2. HOLD Key
(1)DataHoldFunction
This is a function to freeze the measured value
on the display. Pressthe "HOLD" key to freeze the
reading.
The reading will be held regardless of subsequent
variationininput."
H
"isindicatedontheupperleft
cornerofthe displaywhilethe instrumentis inthe
DataHoldmode.ToexitDataHoldmode,pressthe
"HOLD"keyagain.
 
CAUTION
●
Held readings are released when Sleep
Functionisactivatedwhiletheinstrumentisin
theDataHoldmode.
(2)BacklightON/OFF
PressingtheHOLDkey2secormorelightsupthe
Backlight. Pressing the HOLD key 2 sec or more
againturnsofftheBacklight.
6-3. NCV Function
Red LED on the upper area on the Panel lights up
at all functions except for OFF when electric field
exceeding 100V is detected by the sensor installed in
theJaws.
It indic ates a pre se nce o f
voltageinanelectricalcircuit
or equipment without touching
them.
N C V S e n s o r c a n  d e t e c t
electrical field only from the
direction indicated in theright
figure.
Put the fixed element (left
side) closer to the conductor
undertest.
Detection agai nst i n-wall
outletisimpossible.
 
DANGER
●
The LED may not light up due to installation
conditionofelectricalcircuitorequipment.Never
touch the circuit under test to avoid possible
dangereveniftheLEDforNCVdoesn
tlightup.
●
Check the functionality of LED on a well-known
powersupplypriortomeasurement.WhentheLED
doesn
tlightup,donotmakemeasurement.
●
NCV indication is affected by external voltage,
howtoholdorplacetheinstrument.
●
Keep your fingers and hands behind the barrier
duringmeasurement.
6-4. MIN/MAX Function
 
CAUTION
●
SELECT, ZERO, Hz/DUTY keys are disabled
whileMIN/MAXFunctionisbeingactivated.
(1)
AC/DC Current Range
Pressing the MIN/MAX Key at 600A & 1000A
Function enables min or max value measurement.
Pressthe MIN/MAXKey toselectMAX orMIN.The
max ormin valuewithin measuring rangeis being
held until this function is disabled. "MIN" or "MAX"
is indicated on the display while this function is
being activated. To disable this function, press
down the MIN/MAX Key at least 2 sec or change
functions.
(2)
AC/DC Voltage Range
 
CAUTION
●
Pressing the MIN/MAX Key without applying
voltage disables the Auto-ranging function and
fixes the Range to 6V. Connect the test leads to
the circuit under test andpress the MIN/MAX Key
after an appropriate range is selected by Auto-
rangingfunction.
Pressing the MIN/MAX Key enables min or max value
measurement. Press the MIN/MAX Key to select MAX
orMIN.Themaxorminvaluewithinmeasuringrange
is being held until this function is disabled. "MIN" or
"MAX"isindicatedonthedisplaywhilethisfunctionis
beingactivated.
Todisablethisfunction,pressdowntheMIN/MAXKey
atleast2secorchangefunctions.
6-5. ZERO Function
 
CAUTION
●
MIN/MAX, PEAK keys are disabled while ZERO
Functionisbeingactivated.
Zero AdjustmentFunction at CurrentRange "
Δ
" mark
istobeindicatedattheupperrightonthedisplaywhile
ZEROfunctionisbeingoperated.Indicationofrelative
value at Current, Voltage, Resistance: Pressing the
ZERO Key indicates REL (relative value) Press the
ZERO Key to save the initial value at the start of
measurementasareferencevalue.Thenthedifference
between the later measured valuesand the reference
valueisindicatedonthedisplay.
The Auto-ranging function is disabled, while this
function isbeing activated,and the Rangeis fixed to
theRangeselectedatthestartofmeasurement.
Relativevalueisindicatedwithinfollowingranges.
（
Measuringrange
）
=(Full-scalevalueatthefixedRange)‒(Initialvalue)
Todisablethis function,press downtheMIN/MAXKey
atleast2secorchangefunctions.
6-6. Over-flow indication
When the input exceeds the measuring range at each
FunctionotherthanVoltageand1000ARange,"OL"or
"-OL"isindicatedonthedisplay.
7. Battery Replacement
 
WARNING
●
MIN/MAX, PEAKkeys aredisabled while ZERO
Functionisbeingactivated.
 
CAUTION
●
Donotmixoldandnewbatteries.
●
Installbatteriesincorrectpolarityasindicated
intheBatteryCompartment.
Replace the batteries when a Low Battery
Voltagewarning "BATT" mark is indicatedon the
display. Note that when the battery is completely
exhausted,thedisplayblankswithout"
BATT
"mark
shown.
(1)SettheFunctionSwitchto"OFF"position.
(2)Unscrew and remove the Battery Compartment
Coveronthebottomoftheinstrument.
(3)Replace the batteries observing correct polarity.
UsenewR03(AAA)orLR03/1.5Vbatteries.
(4)Install the Battery Compartment and tighten the
screws.
(2)With the transformer jaws closed and without
clamping them onto the conductor, press the
"
ZERO
" key to zero adjust the display. (mark is
displayedattheupperrightonthedisplay.)
(3)Pressthetriggertoopenthetransformerjawsand
clampthem ontothe oneconductor undertest, the
conductorshouldbeatthecenterofthejaws,then
takethereadingonthedisplay.
(4)Set theFunction Switch to anappropriate position
accordingtocurrentundertest.
(5)Pressing the  "
ZERO
"  key again releases  "
ZERO
"
function. (mark at the upper right on the display
disappears.)
 
CAUTION
●
When the current flows from the upside (the
displayside)totheundersideoftheinstrument,the
polarityofthereadingispositiveandviceversa.
5-3. AC Voltage Measurement
 
DANGER
●
Never make measurement on a circuit in which
voltage over AC600V exists to avoid getting
electricalshock.
●
Do notmake measurementwiththe BatteryCover
removed.
●
K e e p yo u r f i ng e r s b e h i n d t h e p r o t e c t i ve
fingerguardontheinstrumentduringmeasurement.
(1)SettheFunctionSwitchto"
ACV
"position.
(2)ConnecttheredtestleadtoV/
Ω
terminalandthe
blacktestleadtoCOMterminal.
(3)Connect the test leads to the circuit under test.
Take the reading on the display. Pressing the
"
Hz/DUTY
"  key while reading is indicated on
the display switches the indication in following
sequence.
 
AC Voltage Hz DUTY⇨ ⇨
 
CAUTION
●
Hz/DUTYFunctionrequiresAC40Vorhigher.
●
To measure a frequency, measure the voltage on
theelectricalcircuitinadvance.
●
Then press the Hz/DUTY key to enter into
frequencymeasurement.
●
Readings of frequency may fluctuate or be
influencedundernoisyenvironment.
Anode
Cathode
92-1801D12-18
8. Maintenance
●
Cleaning
Use a cloth dipped in water or neutral detergent for
cleaningtheinstrument.
Donotuseabrasivesorsolvents.Otherwise,instrument
getdamaged,deformedordiscolored.

Termékspecifikációk

Márka: Kyoritsu
Kategória: multiméter
Modell: KEW 2055

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