Extech Instruments EX850 Manual de usuario

USERMANUAL



ExtechEX850



TrueRMS1000AmpClampMeter



BluetoothTMandAndroidTMready



Patented

EXTECHINSTRUMENTS

EX850-en-GB_v2.4 7/16

Introduction



CongratulationsonyourpurchaseoftheExtechEX850CATIVTrueRMS1000AClampMeter.This

meterincludesaBluetoothTMmoduleandisAndroidTMready.TheEX850measurementfunctions

includeAC/DCVoltage,AC/DCCurrent,Resistance,Capacitance,Frequency,DutyCycle,DiodeTest,

Continuity,TypekthermocouplethermometerplusNon‐ContactIRTemperature.Properuseand

careofthismeterwillprovidemanyyearsofreliableservice.Visitwww.extech.comformore

information.

Safety

InternationalSafetySymbols

Thissymbol,adjacenttoanothersymbolorterminal,indicatestheusermustrefertothe

manualforfurtherinformation.



Thissymbol,adjacenttoaterminal,indicatesthat,undernormaluse,hazardousvoltages

maybepresent



Doubleinsulation



SAFETYNOTES

Donotexceedthemaximumallowableinputrangeofanyfunction.

Donotapplyvoltagetometerwhenresistancefunctionisselected.

SetthefunctionswitchOFFwhenthemeterisnotinuse.

Removethebatteryifmeteristobestoredforlongerthan60days.

WARNINGS

Setfunctionswitchtotheappropriatepositionbeforemeasuring.

Whenmeasuringvoltsdonotswitchtocurrent/resistancemodes.

Donotmeasurecurrentonacircuitwhosevoltageexceeds600V.

Whenchangingrangesalwaysdisconnectthetestleadsfromthecircuitundertest.



FunctionMaximumInput

AAC,ADC1000ADC/AC

VDC,VAC1000VDC/AC

Resistance,Capacitance,Frequency,DiodeTest250VDC/AC

TypeKTemperature 60VDC,24VAC

EXTECHINSTRUMENTS

EX850-en-GB_v2.4 7/16

CAUTIONS

Improperuseofthismetercancausedamage,shock,injuryordeath.Readandunderstand

thisusermanualbeforeoperatingthemeter.

Alwaysremovethetestleadsbeforereplacingthebatteryorfuses.

Inspecttheconditionofthetestleadsandthemeteritselfforanydamagebeforeoperating

themeter.Repairorreplaceanydamagebeforeuse.

Usegreatcarewhenmakingmeasurementsifthevoltagesaregreaterthan25VACrmsor

35VDC.Thesevoltagesareconsideredashockhazard.

Alwaysdischargecapacitorsandremovepowerfromthedeviceundertestbefore

performingDiode,ResistanceorContinuitytests.

Voltagechecksonelectricaloutletscanbedifficultandmisleadingbecauseofthe

uncertaintyofconnectiontotherecessedelectricalcontacts.Othermeansshouldbeused

toensurethattheterminalsarenot"live".

Iftheequipmentisusedinamannernotspecifiedbythemanufacturer,theprotection

providedbytheequipmentmaybeimpaired.

Thisdeviceisnotatoyandmustnotreachchildren’shands.Itcontainshazardousobjects

aswellassmallpartsthatthechildrencouldswallow.Incaseachildswallowsanyofthem,

pleasecontactaphysicianimmediately

Donotleavebatteriesandpackingmateriallyingaroundunattended;theycanbe

dangerousforchildreniftheyusethemastoys

Incasethedeviceisgoingtobeunusedforanextendedperiodoftime,removethe

batteriestopreventthemfromdraining

Expiredordamagedbatteriescancausecauterizationoncontactwiththeskin.Always,

therefore,usesuitablehandglovesinsuchcases

Seethatthebatteriesarenotshort‐circuited.Donotthrowbatteriesintothefire.

Donotdirectlyviewordirectthelaserpointerataneye.Lowpowervisiblelasersdonot

normallypresentahazard,butmaypresentsomepotentialforhazardifvieweddirectlyfor

extendedperiodsoftime



EXTECHINSTRUMENTS

EX850-en-GB_v2.4 7/16

Description

MeterDescription

1. Currentclamp

2. Clampopeningtrigger

3. DataHoldButton

4. Mode

5. Peak

6. Range

7. DCAZero

8. MIN/MAX

9. BacklitLCDDisplay

10. Testleadinputjacks

11. IRthermometerandlaserpointer(rear)

12. BluetoothSEND/BacklightButton

13. Laserpointerbutton

14. Functionswitch



DisplayiconsDescription

HOLDDataHold

MinussignNegativereadingdisplay

0to3999 Measurementdisplaydigits

ZEROZero

PPeakvalue

AUTOAutoRangemode

DC/ACDirect/AlternatingCurrent

MAXMaxreading

MINMinreading

Lowbattery

mVorVMilli‐voltsorVolts(Voltage)

Ω Ohms(Resistance)

AAmperes(Current)

FFarad(Capacitance)

HzHertz(Frequency)

oFandoCFahrenheitandCelsiusunits(Temperature)

n,m,µ,M,kUnitofmeasureprefixes:nano,milli,micro,mega,andkilo

)))Continuitytest

Diodetest

Laserpointer

Bluetoothactivesymbol

EXTECHINSTRUMENTS

EX850-en-GB_v2.4 7/16

Operation

NOTES:ReadandunderstandallWarningandCautionstatementsinthisoperationmanual

priortousingthismeter.SetthefunctionselectswitchtotheOFFpositionwhenthemeteris

notinuse.

ACCurrentMeasurements



WARNING:Ensurethatthetestleadsaredisconnectedfromthemeterbeforemakingcurrent

clampmeasurements.



1. SettheFunctionswitchtotheAACor

ADCrange

2. Pressthetriggertoopenthejaw.Fully

encloseonlyoneconductor.Foroptimum

results,centertheconductorinthejaw.

3. TheclampmeterLCDwilldisplaythe

reading.

DCAZERO

TheDCZerofeatureremovesoffsetvaluesand

improvesaccuracyforDCcurrent

measurements.Toperformazero,selectADC

andwithnoconductorinthejaw:

1. PresstheDCZERObuttonto

zerothedisplay.“ZERO”willappearinthedisplay.Theoffsetvalueisnowstoredandremo

vedfromallmeasurements.

2. Toviewthestoredvalue,presstheDCZERObutton.“ZERO”willflash

andthestoredvaluewillbedisplayed.

3. Toexitthismode,pressandHoldtheZERObuttonuntil“ZERO”isno

longerinthedisplay.



AC/DCVoltageMeasurements

1. InserttheblacktestleadintothenegativeCOMterminalandtheredtest

leadintothepositiveVterminal.

2. SetthefunctionswitchtotheVACorVDCposition.

3. UsetheMODEbuttontoselectACorDCVoltage.

4. Connectthetestleadsinparalleltothecircuitundertest.

5. ReadthevoltagemeasurementontheLCDdisplay.

Correct Incorrect

EXTECHINSTRUMENTS

EX850-en-GB_v2.4 7/16

ResistanceMeasurements

Note:Removepowerbeforemakingresistancemeasurements

1. InserttheblacktestleadintothenegativeCOMterminalandtheredtest

leadintotheΩpositiveterminal.

2. SetthefunctionswitchtotheΩposition.

3. Touchthetestprobetipsacrossthecircuitorcomponentundertest.

4. ReadtheresistanceontheLCDdisplay.



CapacitanceMeasurements

WARNING:Toavoidelectricshock,dischargethecapacitorundertestbefore

measuring.If“dISC”appearsinthedisplay,removeanddischargethe

capacitor.

1. SetthefunctionswitchtotheΩcapacitanceposition.

2. InserttheblacktestleadbananaplugintothenegativeCOMjack

andtheredtestleadbananaplugintotheCAPpositivejack.

3. PressMODEtozeroanystraycapacitance.

4. Touchthetestprobetipsacrossthepartundertest.

5. Readthecapacitancevalueinthedisplay.

6. Thedisplaywillindicatetheproperdecimalpointandvalue.

Note:Forverylargevaluesofcapacitancemeasurementtimecanbeseveral

minutesbeforethefinalreadingstabilizes.

FrequencyMeasurements

1. SetthefunctionswitchtotheVHzPosition.

2. PressandholdtheMODEbuttontoselecttheFrequency(Hz)

function.“kHz”willappearinthedisplay.

3. InserttheblacktestleadbananaplugintothenegativeCOMjack

andtheredtestleadbananaplugintotheHzpositivejack.

4. Touchthetestprobetipsacrossthepartundertest.

5. ReadtheFrequencyvalueonthedisplay.

6. Thedisplaywillindicatetheproperdecimalpointandvalue.

7. PressandholdtheMODEbuttonagaintoreturntothevoltagemode

CAP

EXTECHINSTRUMENTS

EX850-en-GB_v2.4 7/16

TypeKTemperatureMeasurements



1. SetthefunctionswitchtotheKTempposition.

2. InserttheTemperatureProbeintothenegativeCOMandthepositive

TEMPjacks,observingpolarity.

3. TouchtheTemperatureProbetiptothedeviceundertest.Continueto

touchthepartundertestwiththeprobeuntilthereadingstabilizes.

4. Readthetemperatureonthedisplay.Thedigitalreadingwillindicatethe

properdecimalpointandvalue.

WARNING:Toavoidelectricshock,besurethethermocoupleprobehasbeen

removedbeforechangingtoanothermeasurementfunction.

Note:Openinputsortemperatureover‐rangescause“OL”displayandbeep.

Note:Seethe“TemperatureUnits”paragraphtoselect°For°C

Note:Thetemperaturerangeofthesuppliedthermocoupleprobeis‐20to

250°C(‐4to482°F)

ContinuityMeasurements

1. InserttheblacktestleadintothenegativeCOMterminalandtheredtestleadintotheΩ

positiveterminal.

2. Setthefunctionswitchtothe)))position.

3. UsetheMODEbuttontoselectcontinuity))).Thedisplayiconswillchangewhenthe

MODEbuttonispressed.

4. Touchthetestprobetipsacrossthecircuitorcomponentundertest.

5. Iftheresistanceis<40Ω,atonewillsound.

DiodeTest

1. InserttheblacktestleadbananaplugintothenegativeCOMjackandtheredtest

leadbananaplugintothepositivejack

2. Turnthefunctionswitchtoposition.UsetheMODEbuttontoselectthediodefunction

ifnecessary(diodesymbolwillappearontheLCDwheninDiodetestmode)

3. Touchthetestprobetipstothediodeorsemiconductorjunctionundertest.Notethe

meterreading

4. Reversethetestleadpolaritybyreversingtheredandblackleads.Notethisreading

5. Thediodeorjunctioncanbeevaluatedasfollows:

Ifonereadingdisplaysavalue(typically0.400Vto0.900V)andtheotherreading

displaysOL,thediodeisgood.

IfbothreadingsdisplayOLthedeviceisopen.

Ifbothreadingsareverysmallor‘0’,thedeviceisshorted.

EXTECHINSTRUMENTS

EX850-en-GB_v2.4 7/16

Non‐ContactInfraRedTemperatureMeasurements

1. SetthefunctionswitchtotheIRTempposition.

2. Aimtheinfraredsensor(rearofthemeter)atthe

surfacetobemeasured.

3. Pressthebuttoninthecenteroftherotaryfunction

switchtoturnonthelaserpointerandidentifythe

surfacespottobemeasured.

4. Theareaofthesurfacetobemeasuredmustbelarger

thanthespotsizeasdeterminedbythedistanceto

spotsizespecification.

5. Readthetemperatureinthedisplay.

Note:Seethe“TemperatureUnits”paragraphtoselectoForoC



WARNING:Donotdirectlyviewordirectthelaserpointerataneye.Lowpowervisiblelasersdo

notnormallypresentahazard,butmaypresentsomepotentialforhazardifvieweddirectlyfor

extendedperiodsoftime.

IRSpottoDistanceDiagram

The8:1spottodistanceratiodeterminesthesizeofthemeasuredsurfaceareawithrespecttothe

distancethemeterisheldawayfromthesurface.



IRMeasurementNotes

1. Theobjectundertestshouldbelargerthanthespot(target)sizecalculatedbythefieldofview

diagram.

2. Ifthesurfaceoftheobjectundertestiscoveredwithfrost,oil,grime,etc.,cleanbeforetaking

measurements.

3. Ifanobject'ssurfaceishighlyreflective,applymaskingtapeorflatblackpainttothesurface

beforemeasuring.

4. Themetermaynotmakeaccuratemeasurementsthroughtransparentsurfacessuchasglass.

5. Steam,dust,smoke,etc.canobscuremeasurements.

6. Tofindahotspot,aimthemeteroutsidetheareaofinterestthenscanacross(inanupand

downmotion)untilthehotspotislocated.

10cm

1.25cm

20cm

2.5cm

60cm

7.5cm

Distance to object

Diameter of spot

EXTECHINSTRUMENTS

EX850-en-GB_v2.4 7/16

DataHold

TofreezetheLCDreading,presstheHOLDbutton.Whiledataholdisactive,theHOLDicon

appearsontheLCD.PresstheHOLDbuttonagaintoreturntonormaloperation.

PeakHold

ThePeakHoldfunctioncapturesthepeakACorDCvoltageorcurrent.Themetercancapture

negativeorpositivepeaksasfastas1millisecondinduration.

1. TurnthefunctionswitchtotheAorVposition.

2. UsetheMODEbuttontoselectACorDC

3. Allowtimeforthedisplaytostabilize.

4. PressandHoldthePEAKbuttonuntil“CAL”appearsinthedisplay.Thisprocedurewillzero

therangeselected.

5. PressthePEAKbutton,Pmaxwilldisplay.

6. Thedisplaywillupdateeachtimeahigherpositivepeakoccurs.

7. PressthePEAKbuttonagain,Pminwilldisplay.Thedisplaywillnowupdateandindicate

thelowestnegativepeak.

8. Toreturntonormaloperation,pressandholdthePEAKbuttonuntilthePminorPmax

indicatorswitchesoff.

Note:IftheFunctionswitchpositionischangedafteracalibrationthePeakHoldcalibration

mustberepeatedforthenewfunctionselected.

MAX/MIN

1. PresstheMAX/MINkeytoactivatetheMAX/MINrecordingmode.Thedisplayicon"MAX"

willappear.Themeterwilldisplayandholdthemaximumreadingandwillupdateonly

whenanew“max”occurs.

2. PresstheMAX/MINkeyandthedisplayicon"MIN"willappear.Themeterwilldisplayand

holdtheminimumreadingandwillupdateonlywhenanew“min”occurs

3. PresstheMAX/MINkeyandablinking“MAXMIN”willappear.Themeterwilldisplaythe

presentreading,butwillcontinuetoupdateandstorethemaxandminreadings.

4. ToexitMAX/MINmodepressandholdtheMAX/MINkeyfor2seconds.

TemperatureUnits(˚F/˚C)

Thetemperatureunitselectionswitchislocatedinthebattery

compartment.Tochangetheunits,removethebatterydoor,liftoutthe

batteryandsettheswitchforthedesiredunits.



LCDBacklightButton 

TheLCDisequippedwithbacklightingforeasierviewing,especiallyin

dimlylitareas.Pressthebacklightbuttontoturnthebacklighton.Pressagaintoturnthebacklight

off.

Units Switch

EXTECHINSTRUMENTS

EX850-en-GB_v2.4 7/16

AutomaticPowerOFF

Inordertoconservebatterylife,themeterwillautomaticallyturnoffafterapproximately10

minutes.Toturnthemeteronagain,turnthefunctionswitchtotheOFFpositionandthentothe

desiredfunctionposition.

BluetoothTMCommunication

ThemeterincludesaBluetoothmodule.EnabletheEX850Bluetoothbypressingandholdingthe

sideBluetoothSEND/Backlightbuttonfortwoseconds.OnthesecondbeeptheBluetoothiconwill

appearinthedisplay.

AndroidTMApplication

TheEX850meterisAndroidready.FollowthestepsbelowtoobtaintheAndroidapplication

ExViewTMEX850andtoconnecttothemeterwithanAndroiddevice.



1. ObtainandinstalltheAndroidExViewTMEX850applicationfromtheGooglePlayStore.

2. PerformasearchtoobtaintheEX850fromthelistofavailabledevices.

3. PairthemeterwiththeAndroiddevice(tabletorphone)inSettingsunderBluetooth.Use

code1234topairtheEX850totheAndroiddevice.

4. StarttheExViewTMEX850application,tapCONNECTiconandthepairedlistwillappear.

TapontheEX850meterfromthepairedlist.

5. TheupperleftcorneroftheAppshouldindicatethattheEX850isnowconnected.

ThemeterwillbegincommunicatingandMeterreadingswillappearontheAndroiddevice.

6. Theusercanselectthemeter’smeasurementmodedirectlyfromtheiconsshownonthe

bottomrowoftheAndroiddevice(V,A,mA,A,etc.).Simplytapthedesiredmeasurement

parametertoviewthereadings.Refertothescreenshotsbelow.

Note:Ifseveralmetersaretobeused,besuretonotetheuniqueaddressofeachmeterto

quicklydiscernwhichmeterisdisplayingatanygiventime.

AndroidApplicationScreenShotExamples





ACCurrent



ACVoltage



 

Tabla de contenidos

Otros manuales de Instrumento de medición de Extech Instruments

Extech Instruments

Extech Instruments MO257 Manual de usuario

Extech Instruments

Extech Instruments 382152 Manual de usuario

Extech Instruments

Extech Instruments MO220 Manual de usuario

Extech Instruments

Extech Instruments EasyView EA31 Manual de usuario

Extech Instruments

Extech Instruments EasyView EA33 Manual de usuario

Extech Instruments

Extech Instruments DC400 Manual de usuario

Extech Instruments

Extech Instruments SL130W Manual de usuario

Extech Instruments

Extech Instruments GRT350 Manual de usuario

Extech Instruments

Extech Instruments 421509 Manual de usuario

Extech Instruments

Extech Instruments UV510-NIST Manual de usuario

Extech Instruments

Extech Instruments CO100 Manual de usuario

Extech Instruments

Extech Instruments ExStik EC510 Manual de usuario

Extech Instruments

Extech Instruments 407706 Manual de usuario

Extech Instruments

Extech Instruments 380950 Manual de usuario

Extech Instruments

Extech Instruments AN510 Manual de usuario

Extech Instruments

Extech Instruments RH390-NIST Manual de usuario

Extech Instruments

Extech Instruments RH520B Manual de usuario

Extech Instruments

Extech Instruments 38394 Manual de usuario

Extech Instruments

Extech Instruments SDL470 Manual de usuario

Extech Instruments

Extech Instruments ExStik RE300 Manual de usuario

Extech Instruments

Extech Instruments MN30 Manual de usuario

Extech Instruments

Extech Instruments MO270 Manual de usuario

Extech Instruments

Extech Instruments AM600 Manual de usuario

Extech Instruments

Extech Instruments 461830 Manual de usuario

Manuales populares de Instrumento de medición de otras marcas

Suaoki

Suaoki D40 Manual de usuario

Elster

Elster BK-G1.6 Manual de usuario

Endress+Hauser

Endress+Hauser Deltabar FMD71 Manual

Duratool

Duratool D03128 Manual de usuario

Vega

Vega VEGAPULS 65 Manual de usuario

Tonghui

Tonghui TH2618B Manual de usuario

Tenmars

Tenmars TM-801 Manual de usuario

MSR

MSR 145 Manual de usuario

TPS

TPS WP-82 Manual de usuario

ELMETRON

ELMETRON CP-511 Manual de usuario

PCB Piezotronics

PCB Piezotronics 003C30 Manual de usuario

Tenma

Tenma 72-10465 Manual de usuario

Endress+Hauser

Endress+Hauser Proline Promag 50 Especificaciones técnicas

Siemens

Siemens SITRANS F Coriolis FCT030 Manual de lista de piezas

KLINGER

KLINGER CMF V Series Manual de usuario

EXFO

EXFO FTB-2 Manual de operación y mantenimiento

Keysight

Keysight M8290A Manual de usuario

ADTEK

ADTEK MW-5 Manual de usuario