AEMC 6501 Bedienungsanleitung

MEGOHMMETER

6501

6503

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 #: 2126.51 / 2126.52

Model #: 6501/ 6503

Please ﬁll in the appropriate date as indicated:

Date Received: _________________________________

Date Calibration Due: _______________________

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Table of Contents

1. INTRODUCTION...................................................... 3

1.1 International Electrical Symbols...................................... 4

1.2 DenitionofMeasurementCategories............................ 4

1.3 ReceivingYourShipment................................................ 5

1.4 OrderingInformation ....................................................... 5

1.4.1 AccessoriesandReplacementParts ................. 5

2. PRODUCT FEATURES ............................................. 6

2.1 Description ......................................................................6

2.2 Features.......................................................................... 6

2.3 Model6501ControlFeatures ......................................... 8

2.4 Model6503ControlFeatures ......................................... 9

3. SPECIFICATIONS.................................................. 10

4. OPERATION .......................................................... 12

4.1 Auto-ranging .................................................................12

4.2 SafetyCheck-VoltageTest.......................................... 12

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

4.3.1 TestVoltage...................................................... 13

4.3.2 SpotTesting...................................................... 13

4.3.3 RatioTesting..................................................... 14

4.4 SuccessfulInsulationResistanceTesting ..................... 14

4.5 UtilizationoftheGuardTerminal(Model6503) ................... 15

4.6 InsulationMeasurement-Connections ........................ 17

4.7 InsulationResistanceonMotors................................... 21

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5. MAINTENANCE..................................................... 24

5.1 Warning........................................................................24

5.2 Cleaning........................................................................ 24

5.3 FuseReplacement........................................................ 25

Limited Warranty ..........................................................................27

WarrantyRepairs..........................................................................27

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MegohmmeterModels6501/6503

CHAPTER 1

INTRODUCTION

Warning

Thesesafetywarningsareprovidedtoensurethesafetyof

personnelandproperoperationoftheinstrument.

• Readtheinstructionmanualcompletelyandfollowall

safetyinformationbeforeoperatingthisinstrument.

• Safetyistheresponsibilityoftheoperator!

• Testsaretobecarriedoutonlyondeadcircuits!Check

forlivecircuitsbeforemakingresistancemeasure-

ments(safetycheck).

• Thesemegohmmetersareratedfor600VCATIIor

300VCATIII-PollutionDegree2.

• TheMegohmmeterModels6501/6503aresources

ofhighvoltage,asisthesampleconnectedtothem.

Allpersonsperformingorassistinginthetestsmust

employallsafetyprecautionstopreventelectrical

shocktothemselvesandtoothers.

• AEMC

Instrumentsconsiderstheuseofrubbergloves

tobeanexcellentsafetypracticeeveniftheequipment

isproperlyoperatedandcorrectlygrounded.

• Whentestingcapacitancesamples,makesurethat

theyhavebeenproperlydischargedandthattheyare

safetotouch.Dielectricinsulationsamplesshouldbe

short-circuitedforatleastvetimestheamountoftime

theywereenergized.

• Usetheleadssuppliedwiththemegohmmeter.If

defectiveorused,replacebeforetesting.

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MegohmmeterModels6501/6503

1.1 International Electrical Symbols

This symbol signiﬁes that the instrument is protected by double or

reinforced 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 DenitionofMeasurementCategories

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

theACsupplywalloutletsuchasprotectedsecondaries,

signallevel,andlimitedenergycircuits.

CAT II: For measurements performed on circuits directly

connectedtotheelectricaldistributionsystem.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installationandcircuitbreakers.

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

supply (<1000V) such as on primary overcurrent protec-

tiondevices,ripplecontrolunits,ormeters.

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MegohmmeterModels6501/6503

1.3 ReceivingYourShipment

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

sistent with the packing list. Notify your distributor of any missing

items.Iftheequipmentappearstobedamaged,leaclaimimme-

diately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.Donotuseaninstrumentthat

appearstobedamaged.

1.4 Ordering Information

Megohmmeter Model 6501..................................... Cat. #2126.51

Includes a soft carrying case, two color-coded leads, two insulated

alligator clips, test probe and user manual.

Megohmmeter Model 6503..................................... Cat. #2126.52

Includes a soft carrying case, three color-coded leads, three insulated

alligator clips, test probe and user manual.

1.4.1 Accessories and Replacement Parts

Replacement soft carrying case................................ Cat. #2126.71

Replacement leads (black and red), alligator clips

(black and red) and one safety test probe (6501)...... Cat. #2126.72

Replacement leads (black, red and blue), alligator clips (black,

red and blue) and one safety test probe (6503).........Cat. #2126.73

Replacement Fuse - 0.2A, 600V HPC (6501) ............Cat. #2970.95

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MegohmmeterModels6501/6503

CHAPTER 2

PRODUCT FEATURES

2.1 Description

The AEMC® Models 6501 and 6503 are compact, self-contained

hand-crankedmegohmmeters.Theyarepracticalanddependable

instruments designed for a broad range of plant and eld service

applications,suchasacceptancetestingandpreventivemaintenance

ofwiring,cables,switchgear,andmotors.Theeasyhand-cranked

operationprovidesasteadyrectiedDCvoltageoutputacrossthe

entirerangeforconsistentlyreliablereadings.

Thesemegohmmetersincorporateabuilt-ingeneratorand a con-

stantDCvoltagecircuit to provide astableoutputand give direct

insulationresistancereading.

TheModels6501/6503haveauniqueauto-rangingfeature which

expands the scale by x10 and almost doubles the scale length.

Whenthepointerreachesneartheendofscale,theauto-ranging

featureactivates,returningthepointertothebeginningofthescale

withthex10redLEDindicatoron.

Insulation resistance is indicated with a rugged taut-band meter

movement on a logarithmic scale. The indicator scale is easy to

read.

2.2 Features

• Measuresinsulationat500V, resistance andcontinuity(Model

6501)

• Threetestvoltages:250V,500V,1000V(Model6503)

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MegohmmeterModels6501/6503

• Testvoltageconstantacrosstheentiremeasurementrange

• AutorangingMΩ,kΩandΩranges(Model6501)

• AutorangingMΩranges(Model6503)

• Designedforharshenvironments:offshore,mining,heavy-duty

eld,industrial,andmilitaryuse

• Compact,self-containedpackage;foldingcrank

• Largedirectreadingscale

• 600Vtestvoltagerange(safetycheck)

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MegohmmeterModels6501/6503

2.3 Model6501ControlFeatures

kΩ

Ω

x 10

FUS

0.5

(500V)

(1mA)

(5mA)

ΜΩ

2!C

300

100

200

400

500

600

Ω

κΩ

Ω

MEGOHMMETER

Model 6501

INSTRUMENTS

600V CAT II / 1000V CAT I !

123

Figure 2-1

1. Line(-)terminalBlack

2. Fuse0.2A

3. Earth(+)terminalRed

4. AmberLEDilluminateswhenpropercrankspeedisattained,

indicatingpresenceofselectedoutput

5. Foldawayhandle

6. Mechanicalzeroadjustmentscrew

7. Rangeswitch-safetytestrstonMΩ/Vrangeto600VAC

8. Autoranging:RedLEDilluminateswhenreadingneedstobe

multipliedx10toobtainthetruevalue(MΩ,kΩ,Ωranges)

9. Securityngerrestisolatesusershandfromterminalswhile

givingarmgripduringanoperation

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