DIGITAL / ANALOG MEGOHMMETERS 1040 1045 · 2011. 1. 12. · 4 Megohmmeter Models 1030/1040/1045 1.1...

DIGITAL / ANALOG MEGOHMMETERS 1030

1040 1045

E N G L I S H User Manual

Statement of Compliance

Chauvin Arnoux®, Inc. d.b.a. AEMC® Instruments certifies that this instrument has been calibrated using standards and instruments traceable to international standards.

We guarantee that at the time of shipping your instrument has met its published specifications.

An NIST traceable certificate may be requested at the time of purchase, or obtained by returning the instrument to our repair and calibration facility, for a nominal charge.

The recommended calibration interval for this instrument is 12 months and begins on the date of receipt by the customer. For recalibration, please use our calibration services. Refer to our repair and calibration section at www.aemc.com.

Serial #: ________________________________

Catalog #: 2116.89/2116.92/2116.93

Model #: 1030/1040/1045

Please fill in the appropriate date as indicated:

Date Received: _________________________________

Date Calibration Due: _______________________

Chauvin Arnoux®, Inc.d.b.a AEMC® Instrumentswww.aemc.com

Table of Contents

1. INTRODUCTION ...................................................................31.1 International Electrical Symbols .....................................................41.2 DefinitionofMeasurementCategories ...........................................41.3 ReceivingYourShipment ...............................................................41.4 OrderingInformation ......................................................................5

1.4.1 AccessoriesandReplacementParts ................................5

2. PRODUCT FEATURES ..........................................................62.1 Description .....................................................................................62.2 ControlFeatures ............................................................................7

2.2.1 Model 1030 ........................................................................72.2.2 Model 1040 ........................................................................82.2.3 Model 1045 ........................................................................9

2.3 DisplayFeatures ..........................................................................102.3.1 LCDDisplaySymbols ......................................................102.3.2 AnalogBargraph .............................................................102.3.3 DigitalDisplaySymbols ...................................................10

2.4 ControlFeatures .......................................................................... 112.4.1 YellowPushButton .......................................................... 112.4.2 ALARMButton(Models1040/1045) ................................ 112.4.3 CursorButton(Models1040/1045) ................................. 112.4.4 ScrollCursorButton(Models1040/1045) .......................122.4.5 BacklightButton(Models1040/1045) .............................122.4.6 TIMERPushButton(Model1045) ..................................12

2.5 MeasurementFunctions ..............................................................122.5.1 InsulationResistanceTesting ..........................................122.5.2 ContinuityTesting ............................................................142.5.3 ResistanceMeasurement(Models1040/1045) ...............14

2.6 SpecialFunctions .........................................................................152.6.1 TurningON/OFF-BatteryLifeIndication ........................152.6.2 AutoOFFFunction ..........................................................152.6.3 BatteryAutoTest .............................................................162.6.4 Buzzer .............................................................................162.6.5 AlarmSetpoints(Models1040/1045) ..............................17

2.6.6 MeasurementLeadResistanceCompensation (Models1040/1045) ....................................................182.6.7 Timer (Model1045) .....................................................19

3. SPECIFICATIONS ...............................................................203.1 ElectricalSpecifications ...............................................................20

3.1.1 ReferenceConditions ......................................................203.1.2 VoltageDetection ............................................................203.1.3 InsulationResistanceTesting ..........................................203.1.4 Continuity ........................................................................213.1.5 Resistance (Model1040/1045) ............................................213.1.6 Timer (Model1045) ..............................................................223.1.7 PowerSupply ..................................................................22

3.2 EnvironmentalSpecifications .......................................................223.2.1 InfluencingParameters ...................................................223.2.2 Limits ...............................................................................23

3.3 MechanicalSpecifications ............................................................233.4 SafetySpecifications ....................................................................233.5 ApplicationExamples ...................................................................24

3.5.1 InsulationMeasurementsonInstallations .......................243.5.2 InsulationMeasurementsonCables ...............................243.5.3 InsulationMeasurementsonMotors ...............................25

4. OPERATION .......................................................................264.1 Operation .....................................................................................264.2 InsulationResistanceTesting ......................................................264.3 ContinuityMeasurements ............................................................274.4 ResistanceMeasurements(Models1040/1045) .........................28

5. MAINTENANCE ..................................................................295.1 BatteryReplacement ...................................................................295.2 FuseReplacement .......................................................................295.3 Cleaning .......................................................................................305.4 Storage ........................................................................................30

RepairandCalibration .................................................................................31

TechnicalandSalesAssistance ..................................................................31

Limited Warranty .........................................................................................32

WarrantyRepairs .........................................................................................32

MegohmmeterModels1030/1040/1045 3

CHAPTER 1

INTRODUCTION

Warning

Thesesafetywarningsareprovidedtoensurethesafetyofpersonnelandproperoperationoftheinstrument.• Readtheinstructionmanualcompletelyandfollowallsafety

informationbeforeoperatingthisinstrument.• Safetyistheresponsibilityoftheoperator!• Testsaretobecarriedoutonlyonnon-energizedcircuits!

Checkforlivecircuitsbeforemakingresistancemeasure-ments(safetycheck).

• TheMegohmmeterModels1030,1040and1045aresourcesofhighvoltage,asisthesampleconnectedtothem.Allpersonsperformingorassistinginthetestsmustemployallsafetyprecautionstopreventelectricalshocktothemselvesandtoothers.

• AEMC®considerstheuseofrubberglovestobeanexcellentsafetypracticeeveniftheequipmentisproperlyoperatedandcorrectlygrounded.

• Whentestingcapacitancesamples,makesurethattheyhavebeenproperlydischargedandthattheyaresafetotouch.Dielectricinsulationsamplesshouldbeshort-circuitedforatleastfivetimestheamountoftimetheywereenergized.

• Megohmmetersshouldneverbeusedinanexplosiveenvi-ronment.

• Usetheleadssuppliedwiththemegohmmeters.Iftheyaredefectiveorworn,replacebeforetesting.

• Thisinstrumentcanbeusedoninstallationsratedfor300V,CategoryII(CATII).

4 MegohmmeterModels1030/1040/1045

1.1 International Electrical Symbols

This symbol signifies that the instrument is protected by double or rein-forced insulation.This symbol on the instrument indicates a WARNING and that the operator must refer to the user manual for instructions before operating the instrument. In this manual, the symbol preceding instructions indicates that if the instructions are not followed, bodily injury, installation/sample and product damage may result.Risk of electric shock. The voltage at the parts marked with this symbol may be dangerous.

In conformity with WEEE 2002/96/EC

1.2 DefinitionofMeasurementCategoriesCat. I: Formeasurementsoncircuitsnotdirectlyconnected to theAC

supplywall outlet such as protected secondaries, signal level,andlimitedenergycircuits.

Cat. II: Formeasurements performed on circuits directly connected totheelectricaldistributionsystem.Examplesaremeasurementsonhouseholdappliancesorportabletools.

Cat. III: For measurements performed in the building installation atthe distribution level such as on hardwired equipment in fixedinstallationandcircuitbreakers.

Cat. IV: For measurements performed at the primary electrical supply(<1000V) such as on primary overcurrent protection devices,ripplecontrolunits,ormeters.

1.3 ReceivingYourShipmentUponreceivingyourshipment,makesurethatthecontentsareconsistentwith thepacking list.Notify yourdistributor of anymissing items. If theequipment appears to be damaged, file a claim immediately with thecarrierandnotifyyourdistributoratonce,givingadetaileddescriptionofanydamage.Savethedamagedpackingcontainertosubstantiateyourclaim.Donotuseaninstrumentthatappearstobedamaged.


1.4 Ordering InformationMegohmmeter Model 1030................................................ Cat. #2116.89

Megohmmeter Model 1040................................................ Cat. #2116.92

Megohmmeter Model 1045................................................ Cat. #2116.93All models include a soft carrying pouch, two 1.5m test leads (red and black), 2 alligator clips (red and black), 1 black test probe, 6 batteries, and user manual.

Megohmmeter Model 1040 Field Kit ................................ Cat. #2117.30

Megohmmeter Model 1045 Field Kit ................................ Cat. #2117.31Each kit is delivered with a field case, two 1.5m test leads (red and black), 2 alligator clips (red and black), 1 black test probe, 1 remote test probe, 6 batteries, and user manual.

1.4.1 Accessories and Replacement PartsRemoteTestProbe .............................................................. Cat. #2118.97

SoftCarryingPouch ............................................................ Cat. #2119.02

Setof5Fuses,FastActing,600V,0.63A1/4x11/4”(6.3x32mm) ..........................................Cat. #2970.78

FieldCase(Waterproof) ...................................................... Cat. #2118.98

HandsFreeCarryingCase .................................................. Cat. #2118.99

ReplacementLeadSet(2leads,probe,2alligatorclips).......................................... Cat. #2119.01

Order Accessories and Replacement Parts Directly OnlineCheck our Storefront at www.aemc.com/store for availability


CHAPTER 2

PRODUCT FEATURES

Theterm“continuity”isusedtodefinearesistancemeasurementwithatestcurrentofatleast200mA(withthemeasuredresistancelowerthan20Ω) inaccordancewith theVDE0413and IEC61557standards,andtodistinguish it fromaresistancemeasurementperformedwitha lowerunspecifiedtestcurrent.

2.1 DescriptionTheMegohmmetersModel 1030, 1040 and 1045 are battery powereddigital insulation resistance testers. They are designed to measureinsulationresistance,continuity,voltage,andtomeasureresistance.These megohmmeters are used to verify the safety state of electricalinstallations,motors,cablesandotherinsulatedproducts.Themeasure-mentacquisition,processinganddisplayingtechnologyaremanagedbyamicroprocessor.

The Models 1030, 1040 and 1045 offer many features such as:

• Automaticdetectionofpotentiallydangerousvoltages

• Protectionagainstexternalvoltagesurges

• Enhancedoperatorsafetythroughautomaticdischargeofthetestedsample

• Automaticshutdowntooptimizethebatterylife

• LargeLCDdisplaywitheasytoreadsymbolsandindicatorsand,dependingonthemodel,brightblueelectroluminescentback-lighting

• Alarmprogrammingforquicktests

• Leadresistancecompensationforaccuratecontinuitymeasure-ments

• DisplayofthedurationofthemeasurementforeasyDARandPImeasurements


2.2 ControlFeatures

2.2.1 Model 1030

®

I N S T R U M E N T S

MΩ - 250V

MΩ - 500V 20Ω

MEGOHMMETERMODEL 1030

OFF

1

2

3

4

Figure 1

1. Safetyterminals,Ø4mm (marked“+”onRedand“-”)

2. Liquidcrystaldisplay(LCD)

3. Yellowtestbutton (usedtotestinsulationresistance)

4. 4positionrotaryswitch: OFF,MΩ -250V,MΩ -500V,20Ω

5. Batterycompartmentandstand(notshowninthedrawing)


2.2.2 Model 1040

1

2

3

4

20ΩMΩ - 500V

MΩ - 1000V 400 kΩ

OFF

ALARM

®



Figure 2

1. Safetyterminals,Ø4mm(marked“+”onRedand“-”).Notetheinputfortheremotetestprobe(3-pointjack)nexttothe“-”terminal.

2. Backlightliquidcrystaldisplay(LCD)withprimary(large)display andsecondary(small)displayforalarmandtimerfeatures.

3. Yellowtestbutton(totestinsulationresistance),ALARM,selectionandscrollcursors , ,and backlightbuttons.

4. 5positionrotaryswitch: OFF,MΩ-500V,MΩ-1000V,400kΩ,20Ω

5. Batterycompartmentandstand(standnotshowninthedrawing).


2.2.3 Model 1045

ALARM

TIMER

®


400 kΩ MΩ - 250V

MΩ - 500V MΩ - 1000V


OFF 20Ω

1

2

3

4

Figure 3

1. Safetyterminals,Ø4mm(marked“+”onRedand“-”).Notetheinputfortheremotetestprobe(3-pointjack)nexttothe“-”terminal

2. Backlightliquidcrystaldisplay(LCD)withprimary(large)displayandsecondary(small)displayforalarmandtimerfeatures

3. Yellowtestbutton(totestinsulationresistance),ALARM,selectionandscrollcursors , ,and backlightbuttons

4. 6positionrotaryswitch: OFF,MΩ-250V,MΩ-500V,MΩ-1000V,400kΩ,20Ω

5. Batterycompartmentandstand(standnotshowninthedrawing)


2.3 DisplayFeatures

2.3.1 LCD Display Symbols

Timeractive(TIMERmode)

ALARM AlarmONorprogramminginprogress

> Alarmtriggeredabovesetpoint

< Alarmtriggeredbelowsetpoint

Dangeroustestvoltagegenerated

Seetheusermanual

> 25V Voltageatterminals(nongenerated)>25V

Ω Compensatedleadresistance

Buzzeractive

AutoOffdisabled(noautomaticshutdown)

Batterystatus

Ω and Flashing:incorrectcompensationofleadresistance

2.3.2 Analog Bargraph Insulation>2GΩ

Insulation<50kΩ

2.3.3 Digital Display SymbolsBAT Batterieslow–mustbereplacedOL OverRange-OverLoad- - - Insulation<50kΩat250V,<100kΩ at 500V or<200kΩ at 1000V


2.4 ControlFeatures

2.4.1 Yellow Push ButtonTheyellowbuttonisonlyusedtoinitiatethetestvoltagewhenmeasuringinsulation resistance. It isnotused forvoltage, resistance,orcontinuitytests.

Inanyfunctionsetting(exceptOFF),themegohmmeterisinthevoltagemodeandworksasavoltagetestertodetectifanyvoltageispresentonthetestedsample.Ifavoltagegreaterthan25Visdetected,theyellowtestbuttonisdisabledandinsulationtestingisnotpossible.

Theyellowtestbuttonisonlyactiveaslongasitispressed,(exceptionintheTIMERmode-theModel1045-wherefirstpress=ON,secondpress=OFF).

2.4.2 ALARM Button (Models 1040/1045)TheALARMbuttonisusedtoturnthealarmONandOFFforinsulation,resistance,andcontinuitymeasurements.

Itisalsousedwiththe and selectioncursorbuttonstoadjustthealarmsetpoints.

2.4.3 Cursor Button (Models 1040/1045)Whenprogrammingthealarmsetpoints,the cursorbuttonmakesthefollowingsymbolsflashasfollows:

• themeasurementunit(ifapplicable),• thethousandsdigit,• thehundredsdigit,• thetensdigit,• theunitsdigit,• thedecimalpoint,• thealarmtrigger(aboveorbelowthesetting),• anditthenreturnstothemeasurementunits.


2.4.4 Scroll Cursor Button (Models 1040/1045)When programming the alarm setpoints, the scroll cursor is used toscrollthroughthepossiblevaluesforeachparameter,whichflashes:

• MΩ or GΩforinsulation,kΩ or Ωforresistance,forthemeasure-mentunits,

• 1,2,3or_forthethousandsdigit,• 0,1,2,3,4,5,6,7,8and9forthehundreds,tensandunits,• “-.---”or“--.--”or“---.-”or“----”forthedecimalseparator,• >or<foraboveorbelowthresholdtrigger.

2.4.5 Backlight Button (Models 1040/1045)

The button turnsthebacklightonandoff.Thebacklightwillautomati-callyturnoffafteroneminute.Itmayalsobeturnedoffbypressingthebuttonagainatanytime.

2.4.6 TIMER Push Button (Model 1045)Thisbuttonisusedtoturnonoroffthetimedinsulationresistancemea-surement.Itmaybepressedeitherbeforetheyellowtestbutton,orduringtheinsulationresistancetest.Ifpressedduringatimedtestitwillstopthemeasurement.

2.5 MeasurementFunctions

2.5.1 Insulation Resistance TestingTherotaryswitchMΩpositionsdeterminetheinsulationresistancetestingvoltage.

Tests are to be carried out on non-energized circuits only!

• Voltage Detection (Safety Check) Thisisanautomaticsafetyfeature.AssoonastheswitchisturnedtoaMΩ positionandbeforetheyellowtestbuttonispressed,themegohmmeterentersavoltagedetectionmode. Itmeasuresanyvoltagebetween thetestleadsandthesample.Thisisasafetychecktoensurethatthetestedsampleisnotlive.


If the voltage detected is less than 25V,testingmaycontinue,butanerrormayoccur.The lower the testvoltage (250V,500Vor1000V) thegreatertheerror.

If the voltage is greater than 25V,“ and>25V”aredisplayed.Insulation resistance testing isdisabled.Pressing theyellowbuttonwillonlycausethebuzzertoturnonandthe symboltoflash.

Do not perform measurements if any voltage is present.

The warnings turn off only if the voltage at the terminals falls below25V(removalofthetestleadsfromthesampleordisappearanceofthevoltage),oriftheinstrumentisturnedOFF.

If the voltage detected is above 600V (outside of the measure-ment range) the megohmmeter will display “OL” on the digital display.

• Insulation Resistance TestingAssoonastheswitchisturnedtoaMΩposition,themegohmmeterentersavoltagedetectionmode(safetycheck).Itchecksifthereisanyvoltagebetweenthetestleadsandthesample.Thisisasafetychecktoensurethatthetestedsampleisnotlive.(seeabove).

Insulationresistancetestingisinitiatedbypressingtheyellowtestbutton.Thehightestvoltageisthengenerated.Theinsulationresistancevalueisdisplayedontheanalogbargraph(logscale)andonthedigitaldisplay.

Ifthemeasuredinsulationresistanceisgreaterthan2GΩ(2000MΩ),theOLsymbolisdisplayedonthedigitaldisplayinsteadofavalue,andifthemeasurement isgreater than2GΩ, the symbol lightsupontheright-handsideofthebargraph.Similarly,ifthemeasuredinsulationresistanceislessthan50kΩat250V,100kΩat500V,or200kΩat1000V,thedigitalmeasurementdisplayindicates“---”,andifthemeasurementislessthan50kΩ,onlythe symbollightsupontheleft-handsideofthebargraph.

As soon as the yellow button is released the test voltage is stopped(except inTIMERmodewhere it needs to be pressed again), and themegohmmeter returns to the voltage test mode (safety check). It maycontinue to display the voltage, due to the possibly charged sample.The voltage may drop off more or less rapidly based on the samplecapacitance.


When the test voltage is generatedthe symbolisdisplayedtowarntheuserthatthegeneratedtestvoltagemaybedangerous.

Note (Models 1040/1045):Aprogrammedalarmsettingmaybetriggered(seepg17)duringthemeasurement.

Note (Model 1045):Themeasurementmaybetimed(see§2.6.7).

2.5.2 Continuity Testing


Continuity measurement corresponds to the “20Ω” rotary switch posi-tion.ThemegohmmetertakesameasurementatI≥200mA,andtheΩ symbolisdisplayed.WhentheALARMisactiveandthebuzzerturnedon,thebuzzerwillsoundbeforethemeasurementvalueisdisplayed.If theresistanceisgreaterthan20Ω,OLisdisplayedonthedigitaldisplay.Thebargraphisnotactiveinthecontinuitymode.

Duringcontinuitytesting,thefuseischeckedautomaticallyaftereachmeasurement.

Note (Models 1040/1045):Theresistanceofthemeasurementleadsmaybecompensated.Thealarmmaybeactive in thecontinuitymode (see§2.6.5).

Note (Model 1030):Inthecontinuitymode,aloweralarmpointof2Ω is constantlyactive.Thebuzzerwillsoundbelowthisvalue.However, thebuzzermaybedisabledbypressingtheyellowbutton.

2.5.3 Resistance Measurement (Models 1040/1045)

Measurements to be carried out on non-energized circuits only!

Resistancemeasurementcorrespondstothe400kΩpositionoftherotaryswitch.TheΩsymbol isdisplayedwiththekmultipliersymbol ifneces-sary.Themeasurementvalueisshownonthedigitaldisplay.If the resistance is greater than 400kΩ, OL is displayed on the digitaldisplay.Thebargraphisnotactiveinthecontinuitymode.Thealarmmaybeactiveinresistancemeasurementmode.


2.6 SpecialFunctions

2.6.1 Turning ON/OFF - Battery Life IndicationWhenyoumove the rotary switch from theOFFposition to oneof thefunction positions, the battery voltage is applied to the circuit. Theinstrumentturnson,andallofthedisplaylightsupatthesametimefor1second.Thenfor2seconds,the symbolstayson,andthebargraphand the digital display indicate the remaining battery life in percentage(0to100%,e.g.0.95=95%).Note, that this is approximateandbasedona typical batterywith totalvoltagevaryingfrom6.7to10V.TheinstrumentmaybeturnedoffatanytimebyturningtherotaryswitchtoOFF.Thiscutsoffthebatterypowersupplytothewholeinstrument.

2.6.2 Auto OFF FunctionAfter5minuteswithoutanyoperationtotheinstrument(buttonpressed,or on the remote control test probe, or turn of the rotary switch), theinstrumentautomaticallyentersastand-bymode.

To start up the instrument again do one of the following:• Pressanyoneofthebuttons• Turntheswitch• Presstheyellowtestbuttonontheremotecontroltestprobe

TheAutoOFFisdisabledwhenmeasuringcontinuity,foraslongasthetest current varies from zero (which means that a measurement is inprogress).On theModel1045, in theTIMERmode (see§2.6.7), thefiveminutessteadystatebeginsattheendofthemaximum15-minutemeasurementperiod.

• Disabling/Enabling the Auto OFF (Models 1040/1045)TodisabletheAutoOFF,keepthe buttonpresseddownwhenturningONtheinstrument.The symbolisthendisplayed,indicatingthattheAutoOFFfunctionhasbeendisabled.ToenabletheAutoOFFfunction,turntheinstrumentoff(turntheswitchtoOFF)andthenturnitbackonagain.AutoOFFisthedefaultmode.


2.6.3 Battery Auto TestThebatterysupplyvoltageismeasuredautomaticallyeverysecond.Thebatteryvoltagerangeforcorrectoperationis7Vto10V.Therearefourpossiblecases:

• Thevoltageiscorrect:Nothingisdisplayed.

• Thevoltage<7.1V:The symbolflashes.Remainingbatterylifeislimited.

• Thevoltage<6.9V:The symbolremainslit.Measurementaccuracyisnolongerassured.Replacethebatteries.

• Thevoltageiscloseto6.7V:Thedigitaldisplayindicates“BAT”andthen,after5seconds,theshutdownbuzzersounds,andtheAutoOFFfunctionisactivated.Theinstrumentshutsdown.

2.6.4 Buzzer• The Different SoundsWhenthe symbolisdisplayed,thebuzzerisactiveandgivesoutdiffer-entsounds,dependingontheoperationorwarning.

• Shortbuzz(65msat2kHz):- pushonabutton- autoOFF- leadresistancecompensation- after30s,1minand10minduringTIMEDinsulationresis-

tancemeasurement(Model1045)• Continuousbuzz(at2kHz):

- measurementislowerthantheminimumsetpoint- measurementishigherthanthemaximumsetpoint

• Short,higherbuzz(65msat4kHz):- whenadisabled(inactive)buttonispressed (excepttheyellowtestbutton)

• Repeatedhighbuzzes(at4kHz):- thedetectedvoltage(safetycheck)atthesampleisgreater

than25V,andtheuserpressestheyellowtestbutton


• Disabling/Enabling the BuzzerModel 1030: to disable the buzzer, turn the rotary switch to continuitymeasurement (20Ω),and thenpress theyellow testbutton.Thebuzzersoundsandthebuzzersymbolturnsoff.Toenablethebuzzer,presstheyellowtestbuttonagain,orturnswitchtoOFFandthenbackonagain.Buzzeronisthedefaultmode.

Models 1040 and Model 1045: todisablethebuzzer,keeptheALARMbuttonpresseddownandturntheinstrumentON.Thebuzzersymbolisoff(notlit).Toenablethebuzzer,turnswitchtoOFFandthenbackonagain.Buzzeronisthedefaultmode.

2.6.5 Alarm Setpoints (Models 1040/1045)Alarmsetpointsarefullyprogrammableforeachfunction.Therecanbeanalarmsetpointforeachmeasurementfunction.Thesetpointscanbeupperorlowerthresholds.Theycanbeactiveorinactive,andwillbekeptinmemoryevenaftertheinstrumenthasbeenturnedoff.

• Programming of the Alarm SetpointsTo program the setpoint press the ALARM button until the “ALARM”symbolisdisplayedandbeepsasecondtime(thesetpointunitwillblink,e.g.MΩ).Thevalueofthesetpointcorrespondingtotheselectedrangeisindicatedonthesmalldigitaldisplay.

The display indicates the following default setpoints settings:• >0.25MΩfortheMΩ-250Vposition• >0.50MΩfortheMΩ-500Vposition• >1.00MΩfortheMΩ-1000Vposition• <10.00kΩforthe400kΩposition• < 2.00Ωforthe20Ωposition

Thesetpointsmaybeprogrammedusingthecursorbuttons(see§2.4.3).Duringprogramming,themegohmmetercontinuesmeasuring.Tosavethesetpointsintomemory,quittheprogrammingmodebyanotherlongpressontheALARMbuttonuntilthesecondbeep.There are limitations on the value of the setpoints.Iftheprogrammedsetpoint is too high, it is corrected when it is stored intomemory: themaximumrangevaluewillbeentered.Forexample, forcontinuitymea-surements, a 30.00Ω setpointwill be stored as 20.00Ω (max value forcontinuity).If thesetpointhasbeen improperly input, it isalsocorrectedwhen it isstoredintomemory:Forexample,002MΩwillbecome2.00MΩ.


• Turning the Alarm ON and OFFTheAlarmcanbeturnedONbyashortpressontheALARMbutton.Thebuzzerbeepsand theALARMsymbol, the<or>symbol,and thepro-grammedsetpointvalueisthendisplayedonthedigitalsetpointdisplay.

TheAlarmcanbeturnedOFFbyasecondshortpress(andonebeep)ontheALARMbutton.TheALARMsymbol,the<or>symbol,andthealarmsetpointwilldisappear.

• Triggering the AlarmWhenasetpoint is reachedand thealarm is turnedon, thebuzzerwillsoundcontinuouslyandtheALARMandthesettingswillflash.

Forexample,whenmeasuringcontinuitywithasetpointwithavalueof>10Ω, theinstrumentdisplays“ALARM>10.00Ω”whenthealarmison.Ifthemeasurementexceeds10.00Ω,acontinuousbeepwillbetriggeredandthealarmdisplaywillflash.

Similarly,ifwhenmeasuringinsulationwithasetpointvalueof<10MΩ,theinstrumentdisplays“ALARM<10.00MΩ”.Ifthemeasurementfallsbelowthisvalue,acontinuousbeepwillbetriggeredandthealarmdisplaywillflash.

2.6.6 Measurement Lead Resistance Compensation (Models 1040/1045)

Testleadresistancemaybeimportantinacontinuitymeasurement,andremoving this resistance improves the measurement accuracy of lowresistances.The lead resistancecompensation feature isonlyactive inthecontinuitymeasurementmode(20Ω).

Tocompensate (offset) the test leads resistance,short-circuit the leadsandpressthe buttonforashorttime(longpress).Whenthecompensa-tionhasbeenrecorded,thedisplayindicates0.00andthebuzzersounds.Fromthismomenton,themeasurementsdisplayedwillbeautomaticallyreducedbythevaluerecordedandthe

Ω symbolwilldedisplayed.

Todelete thecompensated lead resistance, remove the test leadsandpressthe buttonforashorttime(longpress).Whentheleadcompen-sationiscancelled,the

Ω symbolgoesout.Notethatthemaximum20Ω

continuity measurement range is reduced by the stored compensationvalue.


Note: Whenyouchangetheleads,themeasurementmaybecomenega-tiveifthecompensationishigherthantheresistancemeasuredwiththeresistanceofthenewleads.0.00isthendisplayedupto-0.02Ωandthe

Ω and symbols flash to indicate that the lead compensation is no

longersuitableandshouldberedone.

2.6.7 Timer (Model 1045)

Thetimerfunctionisavailableonlyforinsulationresistancetestingmode(MΩpositions).

WhentheTIMERbuttonispressed,the symbolappearsinfrontofthesmalldigitaldisplaywhich indicates0:00 (elapsed time). If therewasaprogrammedalarmsetpointdisplayed,itwilldisappear.

Ashortpressontheyellowtestbuttonstartsboththetimerandinsulationresistancemeasurement.YoudonothavetokeepthetestbuttonpresseddownintheTIMERmode.

Asecondpressontheyellowtestbuttonstopsthetimerandthemeasure-ment.Theelapsed timeremainsdisplayedand the instrumentswitchesbacktovoltagemeasurement.

To perform another timed measurement, simply press the yellow testbuttonagain.Thetimerisresettozeroandrestartsalongwiththemea-surement.

Toend the timermode,simplypress theTIMERbuttonagainorswitchtheinstrumentOFFandthenbackonagain.The symbolisnolongerdisplayed.

Wheninthetimermode,thebuzzersoundsafter30seconds,1minuteand10minutes.Thisistonotifytheuserwhentotakereadingsrequiredtocalculatethedielectricabsorptionrate(DAR)(=measurementafter1min/measurementafter30s)andthepolarizationindex(PI)(=measurementafter10min/measurementafter1min).

Reminder: Foracceptableinsulation,theymustbegreaterthan1.25and2,respectively.

When measuring, if an alarm setpoint is triggered, the buzzer soundsanddisplayofthetimerisinterruptedtodisplaythealarmmessage(see§2.6.5).

If you forget to stop the insulation test in the TIMER mode, themegohmmeter will automatically switch back to voltage measurementafter15minutesandtheTIMERremainslockedat15:00.


CHAPTER 3

SPECIFICATIONS

The megohmmeters refresh the measurement every 400ms, whichcorrespondsto2.5measurementspersecondforthedigitaldisplay.Thebargraphisrefreshedevery100ms.Thedigitalmeasurementissmoothed,whilethebargraphalwaysindicatestheinstantaneousmeasurement.

3.1 ElectricalSpecifications

3.1.1 Reference ConditionsParameters Reference Conditions

Temperature 23°C±3KRelativehumidity 45to55%RHSupplyvoltage 8V±0.2VCapacityinparallelonresistance nilElectricalfield nilMagneticfield <40A/m

3.1.2 Voltage DetectionDetection Range: 0 to 600VAC/DC

3.1.3 Insulation Resistance TestingMeasurement Range:Model1030: 250V 50kΩ to 2GΩ 500V 100kΩ to 2GΩ

Model1040: 500V 100kΩ to 2GΩ 1000V 200kΩ to 2GΩ

Model1045: 250V 50kΩ to 2GΩ 500V 100kΩ to 2GΩ 1000V 200kΩ to 2GΩ


Analog Bargraph 50kΩ to 2GΩResolution 8segmentsper10-unitintervalAccuracy 5%Rdg±1segment

Digital Display 0.05 to 0.19MΩ 0.2 to 39.99MΩ 40.0 to 399.9MΩ 400 to 2GΩResolution 10kΩ 10kΩ 100kΩ 1MΩAccuracy 3%Rdg±7cts 3%Rdg±5cts 3%Rdg±2cts

Test Voltage 250V 500V 1000VOpenCircuitVoltage <300V <600V <1200V

TestCurrent ≥ 1mAforR≤250kΩ

≥ 1mAforR≤500kΩ

≥ 1mAforR≤ 1MΩ

Short-circuitCurrent ≤ 3mA

Theresidualvoltagepresentontheterminalswhentheyellowbuttonisreleased,isautomaticallydischargedthroughtheinstrumentatarateof1.5s/µFintoanimpedanceof300kΩ.

Average charging time:500V 1000V

1MΩ3s 3s 1µF3s 6s 5µF

100MΩ6s 6s 1µF

20s 20s 5µF

3.1.4 ContinuityMeasurement Range: 0 to 20Ω

Range 0.00 to 19.99ΩResolution 10MΩAccuracy ±3%Rdg±1ct

MeasuringCurrent ≥ 200mAOpenCircuitVoltage 7V ≤Vopen≤ 9V

3.1.5 Resistance (Model 1040/1045)

Measurement Range:0to400kΩ

Range 0.0 to 399.9Ω 400 to 3999Ω 4.00 to 39.99kΩ 40.0 to 399.9kΩ

Resolution 0.1Ω 1Ω 10Ω 100Ω

Accuracy 3%Rdg±5cts 3%Rdg±1ctTestCurrent 600µA 60µAOpenCircuitVoltage 7V ≤Vopen≤ 9V


3.1.6 Timer (Model 1045)

Measurement Range: 0 to 15 minRange 0:00 to 15:00

Resolution 1 secondAccuracy 2%Rdg

3.1.7 Power SupplyTheinstrumentispoweredby6x1.5VAAalkalinebatteries,typeNEDA15A,orLR6.

Measurement Consumption Average LifeVoltagedetection 25mA 57,0005-secondmeasurements

Resistance 50mA 28,0005-secondmeasurementsInsulation250V(R=250kΩ) 160mA 7,2005-secondmeasurementsInsulation500V(R=500kΩ) 200mA 3,8005-secondmeasurementsInsulation1000V(R=1000kΩ) 350mA 1,4405-secondmeasurements

Continuity 230mA 3,3005-secondmeasurements

* Add approximately 45mA for the backlighting.

3.2 EnvironmentalSpecifications

0

10

20

30

40

50

60

70

80

90

-50 -40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90

Storage without battery

Humidityin%ofRH(non-condensingatmosphere)

Use Reference

Temperature in °C

3.2.1 InfluencingParametersInfluenceParameter Range Measurement Variations

Typical Maximum

Temperature -10to+55°C 1%Rdg±1ct/10°C

2%Rdg±2cts/10°C

RelativeHumidity 20to80%RH 1%±1ct 3%±2ctsSupplyVoltage 6.9 to 10V 1%Rdg±1ct 2%Rdg±2cts

Capacityinparalleltotheresistance

0to5µFatnominalcurrent n/a 1%Rdg±1ct


3.2.2 LimitsThe megohmmeters are protected on all ranges against a voltage of720VAC/DC,appliedpermanentlybetweenanytwoterminals.TheModels1040and1045arealsoprotectedagainstaccidentalvoltagesurgesof1200VAC/DConallrangesfor10s.

3.3 MechanicalSpecificationsLCD Display: 2.87x2.14"(73x54.3mm)Dimensions:8.30x4.25x2.36"(211x108x60mm)Weight:Approx830gMaterials: Polycarbonatecasing Crystalpolycarbonatescreen Elastomerexternalmouldings SiliconkeyboardStand: Enablestheinstrumenttobetiltedat30°. Clipsawayintothebottomofthecasewhennotinuse.

3.4 SafetySpecificationsElectricalSafety(accordingtoIEC1010-1+A2(Nov.'95),IEC61557(Feb.'97),andDINEN61557)

300Vrms,Cat.II,PollutionDegree2

Electromagnetic Compatibility:

Emissivity:NFEN55081-1(June‘92)Immunity:NFEN55082-1(Jan.‘98)IP44accordingtoNFEN60529(Oct.‘92)IK04accordingtoNFEN50102(June‘95)ULListed:E192383


3.5 APPLICATION EXAMPLES

3.5.1 Insulation Measurements on Installations

ΩΩ

Ω Ω

ALARM

Ω

ΩΩ

Ω Ω

ALARM

Ω

L1

L2

L3

N

+ -

+ -

Figure 4

3.5.2 Insulation Measurements on Cables

+ -

ΩΩ

Ω Ω

ALARM

Ω

Figure 5


3.5.3 Insulation Measurements on Motors

ΩΩ

Ω Ω

ALARM

Ω

+ -

Figure 6

ΩΩ

Ω Ω

ALARM

Ω

ΩΩ

Ω Ω

ALARM

Ω

+ -+ -

Figure 7


CHAPTER 4

OPERATION

4.1 OperationTurn the rotary switch to the measurement to be performed. Connectthe instrument to thesample tobe tested.Theunitsand the rangeareautomaticallyselectedforthebestreading.

The megohmmeter may be shut downmanually by turning the switchto OFF. Otherwise, the instrument will shut down automatically after 5minutesintheabsenceofanyactionbytheuser(see§2.6.2).

4.2 InsulationResistanceTesting (seepages24&25)

• TurnthemegohmmeterONbyturningtherangeswitchtotheappropri-ate MΩ-Voltagerange.

• Connecttheleadfromthe“+”terminaltotheground/earthpointandtheleadofthe“-”terminallead(orremotecontrolprobe)totheothertestpoint.

• Beforetheyellowtestbuttonispressed,theinstrumentoperatesasavoltagetester(safetycheck)toensurethatthereisnodangerousvolt-ageatthesample(see§2.5.1).

• OntheModel1040and1045theusercanturnonthedisplaybacklightbypressingthe button.

• Presstheyellowtestbutton.Keepitpresseddownuntilthemeasure-ment is displayed, or as long as needed. If released, the insulationtestwill stop.The yellow button on the remote control probeworksthe sameway as the yellow test button on themegohmmeter (see§2.4.1).

• Record the insulation resistance value before releasing the testbutton.

• To end the measurement, release the yellow test button. Themegohmmeter thenenters thevoltagedetectionmodeanddisplaysthe voltage at the terminals. If the tested samplewas capacitive, avoltagemayappearanddropoffslowly.Waitforthesampletestedtodischargefully(voltage<25V)beforedisconnectingtheleads.


OntheModel1040andModel1045,thealarmfunctionmaybeusedininsulationresistancemeasurements,andcanbeactivatedbypressingtheALARMbutton.

OntheModel1045,timedinsulationresistancemeasurementsare initi-atedbyusingtheTIMERbutton.

Note:Whenyouchangetheleads,themeasurementmaybecomenega-tiveifthecompensationishigherthantheresistancemeasuredwiththeresistanceofthenewleads.0.00isthendisplayedupto-0.02Ωandthe

Ω and symbols flash to indicate that the lead compensation is no

longersuitableandshouldberedone.

4.3 ContinuityMeasurements


• TurnthemegohmmeterONbyturningtherangeswitchto20Ω.Thetestcurrentisgeneratedwithoutpressingtheyellowtestbutton.

• OntheModels1040and1045itispossibletocompensatefortheleadresistance(see§2.6.6).

• Connectthe+and-leadstothemeasurementpoints.

• OntheModels1040and1045theusercanturnonthedisplayback-lightbypressingthe button.

• Recordthecontinuityresistance.

• Themegohmmeter will continue generating a test current (200mA)untilitisswitchedoutofthecontinuityrange.TurnthemegohmmeterOFFwhenfinishedandbeforetouchingtheleadends.

• Whenthereareinductiveorcapacitiveelementsinthetestedsample,itmaybeuseful to invert thepolaritybyswitching the leadsaroundonthesample.Takebothmeasurementsandusetheiraverageasameasurementresult.

OntheModels1040and1045,thealarmfunctionmaybeusedincontinu-itymeasurements,andcanbeactivatedbypressingtheALARMbutton(see§2.6.5).


4.4 ResistanceMeasurements(Models 1040/1045)

Measurements to be carried out on non-energized circuits only!

• TurnthemegohmmeterONbyturningtherangeswitchto400kΩ.Thetestvoltageisgeneratedwithoutpressingtheyellowtestbutton.

• OntheModels1040and1045theusercanturnonthedisplayback-lightbypressingthe button.

• Recordthecontinuityresistance.

• Themegohmmeter will continue generating a test current until it isswitched out of the resistance range. Turn the megohmmeter OFFwhendone.

OntheModels1040and1045,thealarmfunctionmaybeusedinresis-tance measurements, and can be activated by pressing the ALARMbutton.


CHAPTER 5

MAINTENANCE

Useonlyfactoryspecifiedspareparts.Themanufacturerwillnotbeheldresponsible for anyaccident, incident, ormalfunction followinga repairdoneotherthanbyitsServiceCenterorbyanapprovedrepaircenter.

5.1 BatteryReplacementBefore anymeasurements,make sure that the symbol is not dis-playedwhenameasurementfunctionisselected.Ifitisdisplayed,changeallthebatteries.

Make sure that none of the terminals are connected and that the switch is set to OFF before opening the battery compartment. Thebattery cover is located on the back of the unit. It can be opened andclosed using a coin or a large screwdriver (1/4-turn captive screw).Toavoiderrors,the symbolonthepower-supplyboardshowsthedirectioninwhichthe2x3AA1.5Vbatteriesshouldbeinserted.Makesurethatyouputthecoverbackproperlyandcloseitafterchangingthebatteries.

5.2 FuseReplacementChange the fuse if “FUS”appearson thedigitaldisplayatpoweruporwhenmeasuringcontinuity.Takeallnecessaryprecautionswhenopeningtheinstrument.Itcanbeopenedandclosedusingacoinoralargescrew-driver(1/4-turncaptivescrew).Thefuseisplacedonafuseholderonthepower-supplyboard.

Make sure that none of the terminals are connected and that the switch is set to OFF before opening the back cover. To avoid any errors,thetext“F-0.63A”iswrittennexttothefuseholder.Makesurethatyoureplacethefaultyfusewithfuseofthesameratingandtype.Replaceandclosethecover.

Type of fuse: FastActing0.63A-660V-1/4"x11/4"(6.3x32mm),30kA


5.3 CleaningDisconnect the instrument from any power source. Use a soft clothslightlymoistenedwithsoapywater.Rinsewithadampclothandquicklydrywithadryclothorforceddryair.Donotusealcohol,solventsoranyhydrocarbonmaterial.

5.4 StorageIf the instrument is to be unused for an extended period (more than 2months),removethebatteriesandstorethemseparately.


RepairandCalibration

Toensurethatyourinstrumentmeetsfactoryspecifications,werecommendthatitbescheduledbacktoourfactoryServiceCenteratone-yearintervalsforrecalibration,orasrequiredbyotherstandardsorinternalprocedures.

For instrument repair and calibration:Youmust contactourServiceCenter foraCustomerServiceAuthorizationNumber(CSA#).Thiswillensurethatwhenyourinstrumentarrives,itwillbetrackedandprocessedpromptly.PleasewritetheCSA#ontheoutsideoftheshipping container. If the instrument is returned for calibration,weneed toknowifyouwantastandardcalibration,oracalibrationtraceabletoN.I.S.T.(Includescalibrationcertificateplusrecordedcalibrationdata).

Ship To: ChauvinArnoux®,Inc.d.b.a.AEMC®Instruments 15FaradayDrive Dover,NH03820USA Phone:(800)945-2362(Ext.360) (603)749-6434(Ext.360) Fax: (603)742-2346or(603)749-6309 E-mail:[email protected]

(Orcontactyourauthorizeddistributor)Costsforrepair,standardcalibration,andcalibrationtraceabletoN.I.S.T.areavailable.NOTE: You must obtain a CSA# before returning any instrument.

TechnicalandSalesAssistance

Ifyouareexperiencinganytechnicalproblems,orrequireanyassistancewiththeproperoperationorapplicationofyourinstrument,pleasecall,mail,faxore-mailourtechnicalsupportteam:

ChauvinArnoux®,Inc.d.b.a.AEMC®Instruments 200FoxboroughBoulevard Foxborough,MA02035USA Phone:(800)343-1391 (508)698-2115 Fax: (508)698-2118 E-mail: [email protected] www.aemc.com

NOTE: Do not ship Instruments to our Foxborough, MA address.


Limited Warranty

TheModel1030,1040and1045arewarrantedtotheownerforaperiodofoneyearfromthedateoforiginalpurchaseagainstdefectsinmanufacture.This limited warranty is given byAEMC® Instruments, not by the distribu-tor fromwhom itwaspurchased.Thiswarranty isvoid if theunithasbeentamperedwith,abusedorifthedefectisrelatedtoservicenotperformedbyAEMC®Instruments.

For full and detailed warranty coverage, please read the Warranty Coverage Information, which is attached to the Warranty Registration Card (if enclosed) or is available at www.aemc.com. Please keep the Warranty Coverage Information with your records.

What AEMC® Instruments will do:If a malfunction occurs within the one-year period, you may return theinstrument to us for repair, provided we have your warranty registrationinformation on file or a proof of purchase. AEMC® Instruments will, at itsoption,repairorreplacethefaultymaterial.

REGISTER ONLINE AT:www.aemc.com

WarrantyRepairs

What you must do to return an Instrument for Warranty Repair: First, request aCustomerServiceAuthorizationNumber (CSA#) by phoneorbyfaxfromourServiceDepartment(seeaddressbelow),thenreturntheinstrumentalongwith thesignedCSAForm.Pleasewrite theCSA#on theoutsideoftheshippingcontainer.Returntheinstrument,postageorshipmentpre-paidto:

Ship To: ChauvinArnoux®,Inc.d.b.a.AEMC®Instruments 15FaradayDrive•Dover,NH03820USA Phone:(800)945-2362(Ext.360) (603)749-6434(Ext.360) Fax: (603)742-2346or(603)749-6309 E-mail:[email protected]

Caution:Toprotectyourselfagainstin-transitloss,werecommendyouinsureyourreturnedmaterial.

NOTE: You must obtain a CSA# before returning any instrument.

08/08

99-MAN100170v10

Chauvin Arnoux®, Inc. d.b.a. AEMC® Instruments15FaradayDrive•Dover,NH03820USA•Phone:(603)749-6434•Fax:(603)742-2346

www.aemc.com

DIGITAL / ANALOG MEGOHMMETERS 1040 1045 · 2011. 1. 12. · 4 Megohmmeter Models 1030/1040/1045 1.1...

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Transcript of DIGITAL / ANALOG MEGOHMMETERS 1040 1045 · 2011. 1. 12. · 4 Megohmmeter Models 1030/1040/1045 1.1...