AEMC 6505 User manual

MEGOHMMETER 6505
ENGLISH 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 #: 2130.18
Model #: 6505
Please fill in the appropriate date as indicated:
Date Received: _________________________________
Date Calibration Due: _______________________
Chauvin Arnoux®, Inc.
d.b.a AEMC®Instruments
www.aemc.com

Table of Contents
INTRODUCTION ..................................................................................... 4
1.1 Symbols ....................................................................................4
1.2 DenitionofMeasurementCategories .....................................5
1.3 ReceivingYourShipment..........................................................5
1.4 OrderingInformation.................................................................6
1.4.1 Accessories ..................................................................6
1.4.2 ReplacementParts .......................................................6
PRODUCT FEATURES............................................................................. 7
2.1 Description................................................................................7
2.2 ControlFeatures .......................................................................8
2.3 SwitchFunctions.......................................................................9
2.4 ButtonFunctions.......................................................................9
2.5 Display ....................................................................................10
2.5.1 DigitalDisplay .............................................................10
2.5.2 BargraphDisplay ........................................................10
2.5.3 DisplaySymbols .........................................................10
SPECIFICATIONS................................................................................. 11
3.1 ReferenceConditions ............................................................. 11
3.2 Voltage.................................................................................... 11
3.3 InsulationResistance.............................................................. 11
3.4 Capacitance............................................................................14
3.5 PowerSupply..........................................................................15
3.6 EnvironmentalSpecications..................................................15
3.7 MechanicalSpecications ......................................................16
3.8 SafetySpecications ..............................................................16
3.9 VariationsinOperatingRange................................................16
OPERATION......................................................................................... 17
4.1 SerialNumber.........................................................................17
4.2 SoftwareVersion.....................................................................17
4.3 VoltageMeasurement.............................................................17

4.4 InsulationMeasurement ........................................................18
4.5 PIMeasurement .....................................................................20
4.5.1 AdjustmentsofthePI..................................................21
4.6 AdjustmentoftheVariableTestVoltage .................................22
4.7 AdjustmentoftheMaximumTestVoltage...............................22
4.8 ErrorMessages ......................................................................23
MAINTENANCE ................................................................................... 24
5.1 RechargingtheBattery ...........................................................24
5.2 FuseReplacement..................................................................25
5.3 Cleaning..................................................................................25
5.4 Storage ...................................................................................25
RepairandCalibration...........................................................................26
TechnicalandSalesAssistance ............................................................26
LimitedWarranty ...................................................................................27
WarrantyRepairs...................................................................................27

4 Megohmmeter Model 6505
CHAPTER 1
INTRODUCTION
WARNING
Thisinstrumentisprotectedagainstaccidentalvoltagesofnotmore
than1000VwithrespecttoearthinmeasurementCategoryIII.The
protection provided by the instrument may be compromised if it is
usedinawaynotspeciedbythemanufacturer.
• Makenomeasurementsonconductorslikelytobeconnectedto
alivesource.
• Complywiththeratedvoltageandmaximumcurrentandthemea-
surementcategory.
• Neverexceedtheprotectionlimitsindicatedinthespecications.
• Complywiththeconditionsforuse:temperature,humidity,altitude,
degreeofpollutionandplaceofuse.
• Donot usethe instrument or its accessoriesif theyseem dam-
aged.
• Useonly theaccessoriesdelivered withthe unit, compliantwith
safetystandards(IEC61010-2-031).
• Respectthevalueandtypeofthefuse(see§5.2)toavoiddamag-
ingtheinstrumentandvoidingthewarranty.
• SettheswitchtoOFFwhentheinstrumentisnotinuse.
• Repairs and metrological verications must be carried out by
approved,qualiedpersonnel.
• Weartheappropriateprotectivegear(insulatedboots&gloves).
1.1 Symbols
Signifies that the instrument is protected by double or reinforced insulation.
CAUTION - Risk of Danger! Indicates a WARNING and that the operator must
refer to the user manual for instructions before operating the instrument in all
cases where this symbol is marked.
Risk of electric shock. The voltage at the parts marked with this symbol may
be dangerous.

Megohmmeter Model 6505 5
Ground/Earth
Important instructions to read and understand completely
Important information to acknowledge
Battery
Fuse
USB socket
The CE marking guarantees conformity with European directives and with
regulations covering EMC.
The trashcan with a line through it means that in the European Union, the product
must undergo selective disposal for the recycling of electric and electronic
material, in compliance with Directive WEEE 2002/96/EC.
1.2 Definition of Measurement Categories
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 protection devices,
ripplecontrolunits,ormeters.
1.3 Receiving Your Shipment
Uponreceivingyourshipment,makesurethatthecontentsareconsistent
withtheorderinginformation.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.

6 Megohmmeter Model 6505
1.4 Ordering Information
Megohmmeter Model 6505................................................Cat. #2130.18
Includes extra large tool bag, set of 3 color-coded 6 ft leads [5000V] (red,
blue, black), set of three color-coded alligator clips 600V CAT IV (red, blue,
black), one blue guard terminal jumper lead, fuse 0.1A 380V, rechargeable
battery pack (installed), US 115V power cord and user manual.
1.4.1 Accessories
Lead-Setof3,color-coded10ft(5kV)Safetywith
3color-codedalligatorclips(600VCATIV)......................... Cat. #2119.76
Lead-Setof3,Color-coded10ft(5kV)Safetywith
IntegralHippoClips(JUMPER LEAD INCLUDED)........................... Cat. #2119.85
Lead-Setof3,Color-coded25ft(5kV)Safetywith
IntegralHippoClips(JUMPER LEAD NOT INCLUDED)..................... Cat. #2119.86
Lead-Setof3,Color-coded45ft(5kV)Safetywith
IntegralHippoClips(JUMPER LEAD NOT INCLUDED)..................... Cat. #2119.87
1.4.2 Replacement Parts
Setof3,color-coded6ft(5kV)safetyleads .......................... Cat. #2119.77
1ftjumperlead.................................................................... Cat. #2119.78
Fuse–Setof3,0.1A,380V,5x20,.10kA.......................... Cat. #2119.84
ExtraLargeToolBag ...........................................................Cat. #2133.73
Safetyalligator(red)600VCATIV ......................................Cat. #2140.52
Safetyalligator(black)600VCATIV ...................................Cat. #2140.53
Safetyalligator(blue)600VCATIV..................................... Cat. #2140.54
9.6VrechargeableNiMHbatterypack................................. Cat. #2960.21
PowerCord115VUSPlug ..................................................Cat. #5000.14
Order Accessories and Replacement Parts Directly Online
Check our Storefront at www.aemc.com/store for availability

Megohmmeter Model 6505 7
CHAPTER 2
PRODUCT FEATURES
2.1 Description
TheMegohmmeterModel6505isaportableinstrumenthousedinarugged
eldcaseandoperatesoneitherbatteryorlinepower.Itperformsvoltage,
insulation,andcapacitancemeasurements.Thisinstrumentcontributesto
thesafetyofelectricalinstallationsandequipment.
FeaturesincludeautomaticcalculationandpresentationoftheDielectric
Absorption Ratio (DAR) and Polarization Index (PI). The Model 6505
displays the test voltage, insulation resistance and the leakage current
duringthetest.Capacitanceofthesampleanddischargevoltagepresent
atthetestleadsisdisplayedattheconclusionofthetest.
TheModel6505isdesignedwiththehighestlevelofbuilt-insafetyfea-
tures.Thismeterincorporatestestinhibitcapabilitieswhichwillnotallow
testvoltagestobegeneratedifalivesampleisdetected.Thetesttermi-
nalsarerecessedtoensureoperatingsafety.
Features:
• Testvoltagecombinationof500V,1000V,2500Vand5000V
• Insulationmeasurementsfrom30kΩto10TΩ
• Adjustableandprogrammabletestvoltage(40to5100V)
• AutomaticcalculationofDARandPIvalues
• DirectmeasurementanddisplayofCapacitanceandLeakage
Current
• Displayofresistance,testvoltageandruntime
• ProgrammabletestruntimesandPIratiotimes
• Automatictestinhibitioniflivesample(>25)
• Automaticdischargeanddisplayofdischargevoltage
• Largedual-displaywithtime,voltageandmeasurementsshown
• Ruggeddualwallweatherproofeldcase
• DesignedandbuilttoIECsafetystandards
• EN61010-1,1000VCATIII

8 Megohmmeter Model 6505
2.2 Control Features
( )
FF 0.1A
380V - 10kA
5x20mm
110 - 230V
50/60 Hz
20 VA max
CALIBRATION
MEGOHMMETER
MODEL 6505
1000V CAT III
2500V
G
DISPLAY
START/STOP
(>2s:DAR-PI )
1
6
7
5
32 4
OFF
M Ω -1000V
M
Ω -2500V
M
Ω -5000V
M Ω 50-5000V
SET V VAR
SET V LOCK
M Ω - 500V
Figure 2-1
Item Description
1Connection terminals “+”, “G” and “-” and access to the protective fuse
2AC power plug (direct operation on AC and battery recharge)
3Back-lit liquid crystal display (see §2.5)
4Serial interface male plug (9-pin) for calibration only
5Rotary selector switch with 8 positions (see §2.3)
6START/STOP button
7Two function buttons (see § 2.4)

Megohmmeter Model 6505 9
2.3 Switch Functions
Range Function
OFF Instrument powered down
MΩ- 500V Insulation measurement at 500V, up to 2TΩ
MΩ- 1000V Insulation measurement at 1000V, up to 4TΩ
MΩ- 2500V Insulation measurement at 2500V, up to 10TΩ
MΩ- 5000V Insulation measurement at 5000V, up to 10TΩ
MΩ- 50-5000V Insulation measurement with variable test voltage
SET VVAR Sets the user definable test voltage for the variable 50-5000V
position
SET VLOCK Sets the user definable maximum test voltage output irrespective of
the insulation measurement positions
2.4 Button Functions
Button Function
ON/OFF This button is pressed to start then stop the measurement.
A long press starts the measurement of the DAR and of the PI.
DISPLAY Before, during or after the measurement, pressing this key displays the
various measurement parameters.
▲
This function is available only in the SET positions of the switch. Increases
the flashing parameter being displayed. To move about the list of interval
insulation measurements, in the R(t) function.
▼
This function is available only in the SET positions of the switch. Decreases
the flashing parameter being displayed. To move about the list of interval
insulation measurements in the R(t) function.
NOTE: Iftheand buttonsarehelddown, themovementbetween
parametersisincreasedtoafasterrate.

10 Megohmmeter Model 6505
2.5 Display
2.5.1 Digital Display
Main Display
Indicatesthevalueof:
• Insulationmeasurement(resistance,DARandPIorcapacitance).
Small Display
Indicates:
• Voltagemeasuredorappliedbytheinstrument.
• Elapsedtimeortheoutputvoltage,duringinsulationmeasurement.
2.5.2 Bargraph Display
Indicates:
• Activeduringinsulationmeasurement(0.1MΩto1TΩ).
• Indicatesthebatterychargeatstart-up.
2.5.3 Display Symbols
Dangerous voltage generated; V >120V.
External voltage present, symbol is activated after pressing START,
if V >25VAC ± 3V or > 35VDC.
Indicates the duration of the measurement, or the time remaining in
the case of a PI measurement.
Indicates the battery is low and must be recharged (see §5.1).

Megohmmeter Model 6505 11
CHAPTER 3
SPECIFICATIONS
3.1 Reference Conditions
Influence Quantity Reference Values
Temperature 23 ± 3°C
Relative humidity 45 to 55% RH
Supply voltage 9 to 12V
Frequency range DC and 15.3 to 65Hz
Capacity in parallel on resistor 0µF
Electrical field nil
Magnetic field < 40 A/m
3.2 Voltage
Measurement Range 1.0 to 99.9V 100 to 999V 1000 to 2500V 2501 to 5100V
Frequency Range* DC and 15 to 500Hz DC
Resolution 0.1V 1V 2V 2V
Accuracy 1% of Reading
± 5cts 1% of Reading ± 3cts
Input Impedance 750kΩat 3MΩdepending on measure voltage
*Over 500Hz, the small display indicates “- - - -” and the main display gives only an assessment
of the peak value of the measured voltage.
3.3 Insulation Resistance
Method: Voltage-currentmethodaccordingtoEN61557-2(ed.02/97)
Nominal Output Voltage:
500,1000,2500,5000VDC(oradjustablefrom40to5100V)
No Adjustment in Variable Mode: 10Vfrom40to1000V
 100Vfrom1000to5100V
Nominal Current:>1mADC

12 Megohmmeter Model 6505
Short-circuit Current: <1.6mA±5%
Load Current: 3mADCapproxwhenstartingmeasurement
Max. Acceptable Voltage: Upeak=0.4Un
Test
Voltage 500V - 1000V - 2500V - 5000V
Range 10 to 999kΩ
1.000 to 3.999MΩ4.00 to 39.99MΩ40.0 to 399.9MΩ0.400 to 3.999GΩ
Resolution 1kΩ10kΩ100kΩ1MΩ
Accuracy ±5% of Reading + 3cts
Test
Voltage 500V - 1000V - 2500V - 5000V 1000V - 2500V 5000V
2500V
5000V
Range 4.00 to
39.99GΩ
40.0 to
399.9GΩ
0.400 to
1.999TΩ
2.000 to
3.999TΩ
4.00 to
9.99TΩ
Resolution 10MΩ100MΩ1GΩ10GΩ
Accuracy ±5% of Reading + 3cts ±15% of Reading + 10cts
Accuracy in variable mode
Rmeasured=Un/250pA
Test voltage 40 to 160V 170 to 510V 520 to 1500V 1600 to 5100V
R measured min 10kΩ10kΩ10kΩ10kΩ
R measured max 160.0GΩto
640.0GΩ
640.0GΩto
2.040TΩ
2.080TΩto
6.000TΩ
6.400TΩto
10.00TΩ
Toobtaintheaccuracyinvariablevoltagemode,calculatefromthe
accuraciesofthexedvoltagesabove.
Measurement of the test voltage after a capacitive insulation
measurement
Measurement Range 25 to 5000V
Resolution 0.2% Un or 1ct
Accuracy 5% of Reading ± 3cts

Megohmmeter Model 6505 13
Calculation of terms DAR and PI
Specified Range 0.02 - 50.00
Resolution 0.01
Accuracy 5% of Reading ± 1ct
Typical change curve for test voltages according to load:
Range 500V
600
V
500
400
300
200
100
0
0.01 0.1
1 MΩ
Range 1000V
1200
V
1000
800
600
400
200
0
0.1
1 MΩ

14 Megohmmeter Model 6505
Range 2500V
3000
V
2500
2000
1500
1000
500
0
0.1 1
10 MΩ
Range 5000V
6000
V
5000
4000
3000
2000
1000
0
0.1 1
10 MΩ
3.4 Capacitance
Thismeasurementismadeattheendofeachinsulationmeasurement,
whilethecircuitisbeingdischarged.
Measurement Range 0.001 to 9.999 µF 10.00 to 49.99 µF
Resolution 1 nF 10 nF
Accuracy 10% of Reading ± 1ct 10%

Megohmmeter Model 6505 15
3.5 Power Supply
• 9.6VrechargeableNiMHbatterypack
• LineVoltage:85to256V/50-60Hz
Minimum Battery Charge Life(perNFEN61557-2)
Test Voltage Nominal Charge
Number of Measurements
5s on nominal charge (with 25s pause between
each measurement)
500V 500kΩ6500
1000V 1MΩ5500
2500V 2.5MΩ4000
5000V 5MΩ1500
Average Battery Life:Theoperatingtimewillbe15daysor3weeks,based
upona10minutelongPImeasurement.
Recharge Time:
Chargingmustbedonebetween20and30°C
6hoursfor100%capacity(10hoursifthebatteryiscompletelydrained)
0.5hoursfor10%capacity(chargelife:2daysapproximately)
NOTE: It is possible to recharge the batteries while performing insulation
measurements provided that the values measured are higher than 20MΩ.
In this case, the recharging time is higher than 6 hours and depends on
the frequency of the measurements.
3.6 Environmental Specifications
Operating Range:
14 ° to104°F(-10 ° to40°C)duringrechargingofbatteries
14°to131°F(-10°to55°C)duringmeasurement
10to80%RH
Storage:-40to158°F(-40to70°C);10to90%RH
Altitude:<2000m
Useindoorsoroutdoors

16 Megohmmeter Model 6505
3.7 Mechanical Specifications
Case Dimensions:
10.63x9.84x7.09"(270x250x180mm)
Weight:9.5lbs(4.3kg)approx.
Mechanical Protection
IP53perNFEN60529(Ed.92)
IK04perNFEN50102(Ed.95)
3.8 Safety Specifications
ElectricalsafetyaccordingtoEN61010-1(Ed.2for2001),
EN61557(Ed.2005)
1000V CATIII
2500V CATI
PollutionDegree2
Electromagnetic Compatibility:
NFEN61326-1(Ed.97)+A1,industrialenvironmentcategory
3.9 Variations in Operating Range
Influential
Quantity
Range of
Influence
Quantity
Influenced*
Influence
Typical Max.
Battery
Voltage 9V to 12V V MΩ
<1ct
<1ct
2cts
3cts
Temperature -10° to +55°C V
MΩ
0.15% R/10°C
0.20% R/10°C
0.3% R/10°C ± 1ct
1% R/10°C ± 1ct
Humidity 20 to 80% RH
V
MΩ(10kΩto 40GΩ)
MΩ (40GΩto 10TΩ)
0.2% R
0.2% R
3% R
1% R ± 2cts
1% R ± 5cts
15% R ± 5cts
Frequency 15 to 500Hz V 0.3% R 0.5% R ± 1ct
AC voltage
superimposed
on test voltage
0% to 20% Vn MΩ0.1% R / % Vn 0.5% R / % Vn
± 5cts
*The terms DAR, PI and the capacity and current leak measurements are included in the quantity “M Ω”.

Megohmmeter Model 6505 17
CHAPTER 4
OPERATION
Charge the instrument fully before use (see §5.1)
4.1 Serial Number
To view the serial number of the instrument, keep the DISPLAY button
pressedandturntheswitchtotheMΩ-500Vposition.
4.2 Software Version
Toviewtheinternalsoftwareversionoftheinstrument,keeptheDISPLAY
buttonpressedandturntheswitchtotheMΩ-1000Vposition.
Technical documentation on Understanding Insulation Resistance Testing
is available on our website at www.aemc.com/techinfo.
4.3 Voltage Measurement
Assoonastheswitchissettoaninsulationmeasurementposition,the
instrumentautomaticallymeasuresthepresenceofanyAC/DCvoltage.
Thisvoltageismeasuredatalltimesandindicatedonthesmalldisplay
unit.
TheinstrumentautomaticallydeterminesACorDC.TheACmeasurement
isanRMSvalue.
Ifanexcessivelyhighexternalvoltageispresentontheterminals(>0.4
Un), pressing the START/STOP button has no e󰀨ect and no measure-
mentsaremade.Similarly,ifanexcessivelyhigherroneousvoltage(>0.4
Un)isdetectedduringthemeasurement,themeasurementisautomati-
callystopped.

18 Megohmmeter Model 6505
4.4 Insulation Measurement
Depending on the measurements to be made, there are three ways to
connecttheinstrument.
Inallcases,disconnectthedevicetobetestedfromthesource.
Weak Insulation
Connecttheredhigh-voltage
leadbetweenearthandthe
+terminaloftheinstrument.
Connecttheblackhigh-
voltageleadbetweenone
phaseofthemotorandthe
-terminaloftheinstrument.
M
+
-
Strong Insulation
Foraveryhighinsulation
value,connectthesmallblue
high-voltageleadbetween
therearearthpick-upjack
oftheblackleadandtheG
terminaloftheinstrument.
Thisservestoreduceany
externalinuenceandobtain
amorestablemeasurement.
M
+
-
G
Cable
Connectthered
high-voltagelead
betweenthebraidand
the+terminalofthe
instrument.
Connecttheblack
high-voltagelead
betweenthecoreand
the-terminalofthe
instrument.
G
-
+
Exterior
Insulation
Braid
Insulation Core
Connectthebluehigh-voltageleadbetweentheinsulationandtheG
terminaloftheinstrument.
Theguardservestoeliminatethee󰀨ectofsurfaceleakagecurrents.