Chauvin Arnoux AEMC 6527 Manual de usuario

MEGOHMMETER 6527

ENGLISH User Manual

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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.

Serial #: ________________________________

Catalog #: 2126.53

Model #: 6527

Please ﬁll in the appropriate date as indicated:

Date Received: _________________________________

Date Calibration Due: _______________________

Chauvin Arnoux®, Inc.

d.b.a AEMC®Instruments

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Megohmmeter Model 6527

Table of Contents

1. INTRODUCTION............................................................................... 4

1.1 International Electrical Symbols................................................5

1.2 DenitionofMeasurementCategories .....................................5

1.3 ReceivingYourShipment..........................................................6

1.4 OrderingInformation.................................................................6

1.4.1 AccessoriesandReplacementParts............................6

2. PRODUCT FEATURES ...................................................................... 7

2.1 Description................................................................................7

2.2 KeyFeatures ............................................................................7

2.3 ControlFeatures .......................................................................8

2.4 Display ......................................................................................9

2.5 ButtonFunctions.....................................................................10

2.6 Auto-OFFFunction .................................................................10

2.7 RangeSwitchPositions ..........................................................11

3. OPERATION .................................................................................. 12

3.1 StartingtheInstrument ...........................................................12

3.2 StoppingtheInstrument..........................................................12

3.3 InsulationResistanceTesting(MΩRange) ............................12

3.3.1 TestVoltage ................................................................12

3.3.2 SpotTesting ................................................................13

3.3.3 RatioTesting ...............................................................13

3.3.4

TipsForSuccessfulInsulationResistanceTesting .........14

3.3.5 InsulationMeasurement-Connections ......................14

3.3.6 InsulationResistanceMeasurementsonMotors........17

3.4 MeasuringMΩInsulationResistance .....................................19

3.5 VoltageMeasurements ...........................................................20

3.6 ContinuityMeasurements .......................................................21

3.6.1 LeadResistanceCompensation.................................22

3.7 ResistanceMeasurements .....................................................22

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4. MAINTENANCE ............................................................................. 23

4.1 BatteryReplacement ..............................................................23

4.2 FuseReplacement..................................................................24

4.3 Cleaning..................................................................................24

5. SPECIFICATIONS........................................................................... 25

5.1 ReferenceConditions .............................................................25

5.2 Specications..........................................................................25

Limited Warranty ...................................................................................28

WarrantyRepairs...................................................................................28

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Megohmmeter Model 6527

CHAPTER 1

INTRODUCTION

WARNING

 ThisdevicecomplieswithsafetystandardIEC-61010-1.

 (Ed2–2001)forvoltagesupto600VincategoryIV,atanaltitudeofless

than2000m,indoors,withapollutionlevelofnotmorethan2.

 Thesesafetyinstructionsareintendedtoensurethesafetyofpersons

andproperoperationofthedevice.Ifthetesterisusedotherthanas

speciedinthisdatasheet,theprotectionprovidedbythedevicemay

beimpaired.

• Do not use the instrument in an explosive atmosphere or in the

presenceofammablegasesorfumes.

• Do not use the instrument on networks of which the voltage or

categoryexceedsthosementioned.

• Donotexceedtheratedmaximum voltages between terminals or

withrespecttoground/earth.

• Donotusetheinstrumentifitappearstobedamaged,incomplete,

ornotproperlyclosed.

• Beforeeachuse,checktheconditionoftheinsulationontheleads,

housing, and accessories.Any element of which the insulation is

deteriorated(evenpartially)mustbesetasideforrepairorscrapped.

• Useleadsandaccessoriesratedforvoltagesandcategoriesatleast

equaltothoseoftheinstrument.

• Observetheenvironmentalconditionsofuse.

• Donotmodifytheinstrumentanddonotreplacecomponentswith

“equivalents”.Repairsandadjustmentsmustbedonebyapproved

qualiedpersonnel.

• Replacebatteriesassoonasthe symbolappearsonthedisplay.

Disconnectallleadsbeforeopeningbatterycompartmentcover.

• Replace the defective fuse with a fuse having identical character-

istics. Disconnect all leads before opening the fuse compartment

cover.

• Usepersonalprotectiveequipmentwhenconditionsrequire.

• Whenhandlingprobesorcontacttips,keepyourngersbehindthe

guards.

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Megohmmeter Model 6527

1.1 International Electrical Symbols

Signiﬁes that the instrument is protected by double or reinforced insulation.

This symbol on the instrument indicates a WARNING 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/or product damage may

result.

Compliance with the Low Voltage & Electromagnetic Compatibility European

directives (73/23/CEE & 89/336/CEE)

AC – Alternating current

AC or DC – Alternating or direct current

Risk of electric shock. The voltage at the parts marked with this symbol may be

dangerous.

Important instructions to read and understand completely.

Helpful information to acknowledge.

Ground/Earth symbol

In conformity with WEEE 2002/96/EC

1.2 Deﬁnition of Measurement Categories

CAT I: For measurements on circuits not directly connected to the

ACsupplywall outlet such asspeciallyprotected lines (mains)

derivedcircuits.

CAT II: Formeasurementsperformedoncircuitsdirectlyconnectedtothe

electrical distribution system (AC supply wall outlet). Examples

aremeasurementsonhouseholdappliancesorportabletools.

CAT III: For measurements performed in the building installation at the

distributionlevelsuchasonhardwiredequipmentinxedinstal-

lationandcircuitbreakers.

CAT IV: Formeasurementsperformedattheprimaryelectricalsupply

(<1000V)suchasonprimaryovercurrentprotectiondevices,

ripplecontrolunits,ormeters.

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Megohmmeter Model 6527

1.3 Receiving Your Shipment

Uponreceivingyour shipment, makesurethat the contentsareconsis-

tentwiththe packing list.Notifyyour distributor ofanymissing items. If

theequipmentappearstobedamaged,leaclaimimmediatelywiththe

carrierandnotifyyourdistributoratonce,givingadetaileddescriptionof

anydamage.Savethedamagedpackingcontainertosubstantiateyour

claim.

1.4 Ordering Information

MegohmmeterModel6527..................................................Cat. #2126.53

Includes set of two 5 ft color-coded leads (red/black) with alligator clips, 1 black test probe,

soft carrying case and a user manual.

1.4.1 Accessories and Replacement Parts

Lead–Setof2,Color-coded5ftSafetyLeads

w/Color-codedAlligatorClips(UL),&TestProbe ................ Cat. #2119.01

Case-ReplacementCarryingPouch.................................. Cat. #2126.75

Fuse-Setof5,0.5A,600V(min),HPC,6x32mm............... Cat. #2970.97

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Megohmmeter Model 6527

CHAPTER 2

PRODUCT FEATURES

2.1 Description

The Model 6527 is a portable multi-range megohmmeter capable of

measuringinsulationresistancefrom1kΩto 4000MΩ. It has three user

selectabletestvoltagesof250V,500Vand1000V.

The Model 6527 also features a continuity test function with audible

beeperforresistancesunder35Ω,andanoverloadprotectionof600Vrms.

Inadditionitcanmeasureresistanceupto400kΩ.

TheTESTbuttonhasanassociatedlockingfeatureforcontinuoustestsup

tothreeminutes,eliminatingtheneedtomanuallyholddownthebutton.

This lightweight, easy-to-use megohmmeter can be used for most

commonly performed insulation tests, such as on cables, switch gears,

motors,DCgenerators,powertoolsandsmallappliances.

2.2 Key Features

• Insulationtestvoltageselectionsof250V,500Vand1000V

• Measureinsulationto4000MΩ(4GΩ)

• TESTLOCKfeaturefortimesensitivemeasurements

• Autodischargeafterinsulationtest

• AC/DCvoltmeterto600VAC and 1000VDC

• Resistancemeasurementsupto400kΩ

• Continuitymeasurementswith200mAtestcurrent

• Test lead resistance compensation for accurate low resistance

measurements

• AutoHOLDfunctionto“freeze”readings

• Largeandbrightdualdisplaywithbluebacklight

• AutoPowerOff

• Ergonomicover-moldedcasewithback-stand

• ComplieswithInternationalInsulationTestingStandardsincluding

EN61557

• CEmarkedand600VCATIVrating

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Megohmmeter Model 6527

2.3 Control Features

HOLD ZERO /

MEGOHMMETER

MODEL 6527

TEST LOCK

TEST

500V

250V

OFF

MΩ

1000V

0.1M

0.2

0.5

>25V HOLD

LOCK

20 50

200 500

2000

10M

100M

1000M

∞

Figure 2-1

1. VΩJack/COMinputjack

2. LCDDisplay(see§2.4)

3. DataHold,TestLockandZero/Backlightbuttons(see§2.5)

4. RotaryFunctionSwitch(see§2.7)

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