AEMC instruments GROUNDFLEX 6474 Manuale utente
6474
User Manual
ENGLISH
GROUNDFLEX®ADAPTER
WITH AEMC
®
INSTRUMENTS
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.
NIST traceable calibration is only possible when
the Model 6474 is connected to the Ground Tester
Model 6472.
To obtain NIST calibration (for a nominal charge), the
instrument would need to be returned to our facility,
along with your Ground Tester Model 6472.
The recommended calibration interval 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 #: 2136.03
Model #: 6474
Please fill in the appropriate date as indicated:
Date Received: _________________________________
Date Calibration Due: _______________________
Chauvin Arnoux®, Inc.
d.b.a AEMC®Instruments
www.aemc.com
2
GroundFlex®Adapter Model 6474
Table of Contents
INTRODUCTION ..................................................................................... 3
1.1 International Electrical Symbols...........................................................4
1.2 DenitionofMeasurementCategories.................................................4
1.3 ReceivingYourShipment.....................................................................4
1.4 OrderingInformation ............................................................................5
1.4.1 AccessoriesandReplacementParts......................................5
GROUNDFLEX®ADAPTER ...................................................................... 6
2.1 ControlFeatures ..................................................................................6
2.2 GroundFlex®Sensor ............................................................................7
2.2.1 CalibrationofGroundFlex®Sensors .......................................8
2.3 MeasurementsinAUTOMode...........................................................10
2.3.1 PreparationoftheGroundFlex®Adapter...............................10
2.3.2 MakingaMeasurement(ResistanceofLegs) ......................12
2.3.3 OtherMeasurements ............................................................14
2.4 MANUALModeandSWEEPMode ...................................................14
2.5 TowerTestingMeasurement ..............................................................16
2.5.1 ChoosingthepositionsfortheH,Selectrodes:....................16
SPECIFICATIONS................................................................................. 24
3.1 Electrical.............................................................................................24
3.2 Mechanical.........................................................................................26
3.3 Environmental ....................................................................................26
3.4 Safety.................................................................................................26
MAINTENANCE ................................................................................... 27
4.1 Maintenance.....................................................................................27
4.2 Cleaning...........................................................................................27
RepairandCalibration.................................................................................28
TechnicalandSalesAssistance ..................................................................28
LimitedWarranty .........................................................................................29
WarrantyRepairs ........................................................................................29
GroundFlex®Adapter Model 6474
3
CHAPTER 1
INTRODUCTION
WARNING
Thesesafetywarningsareprovidedtoensurethesafetyofpersonnel.
Pleaseread and complywiththeseprecautions:
• Thisinstrumentisprotectedfromaccidentalvoltagesofnotmorethan
50VwithrespecttoearthinmeasurementCATIV.Theguaranteedlevel
ofprotectionofthisequipmentmaybecompromisedifusedinamanner
notspeciedbythemanufacturer.
• Safetyistheresponsibilityoftheoperator.
• Allmetalobjectsorwiresconnectedtotheelectricalsystemshouldbe
assumedtobelethaluntiltested.Groundingsystemsarenoexception.
• Never exceed the maximum rated voltage and current, and the
measurementcategory.
• Never exceed the protection limits, and always comply with the
conditionsandplaceofuse,indicatedinthespecications.
• Donotusetheinstrumentoritsaccessoriesiftheyappeardamaged.
• Useaccessories that haveovervoltagecategory and service voltages
greaterthanorequaltothoseoftheinstrument(CATIV50V).Useonly
accessoriesthatcomplywithsafetystandards(IEC61010-2-031&32).
• Weartheappropriateprotectivegear(insulatingbootsandgloves).
• CheckthatnoterminalisconnectedandtheswitchissettoOFFbefore
openingthedevice.
• Useonlythechargingunitsuppliedwiththeinstrumenttorechargethe
battery.
• Troubleshootingandmetrologicalvericationproceduresmustonlybe
performedbyqualied,approvedpersonnel,orthefactory.
• NOTE: Thepotentialsonthevariousrodsusedforanearthmeasurement
maybedierentifanearbyelectricalinstallationisdefectiveorcertain
weather conditions prevail (thunderstorms). It is up to the operator
to decide whether to continue or postpone measurements in these
situations.
4
GroundFlex®Adapter Model 6474
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.
Risk of electric shock. The voltage at the parts marked with this symbol may be
dangerous.
Ground/Earth symbol
In conformity with WEEE 2002/96/EC
1.2 Definition of Measurement Categories
CAT II: Formeasurementsperformedoncircuitsdirectlyconnectedtotheelectrical
distributionsystem.Examplesaremeasurementsonhouseholdappliancesor
portabletools.
CAT III:
Formeasurementsperformedinthebuildinginstallationatthedistributionlevel
suchasonhardwiredequipmentinxedinstallationandcircuitbreakers.
CAT IV: Formeasurementsperformedattheprimaryelectricalsupply(<1000V)such
asonprimaryovercurrentprotectiondevices,ripplecontrolunits,ormeters.
1.3 Receiving Your Shipment
Uponreceivingyourshipment,makesurethatthecontentsareconsistentwiththe
packinglist.Notifyyourdistributorofanymissingitems.Iftheequipmentappears
tobedamaged,leaclaimimmediatelywiththecarrierandnotifyyourdistributor
atonce,givingadetaileddescriptionofanydamage.Savethedamagedpacking
containertosubstantiateyourclaim.
GroundFlex®Adapter Model 6474
5
1.4 Ordering Information
NOTE: The GroundFlex®Adapter Model 6474 only operates in combination
with the Ground Tester Model 6472 Kit - 500ft.
GroundFlex®Field Kit (Model 6472 and 6474) .............................Cat. #2136.03
Includes: (Ground Tester Model 6472 Kit-500 ft (Cat #2135.54)); Model 6472, one carrying bag,
two 500 ft. color-coded leads on spools (red/blue), two 100 ft. color-coded leads (hand tied,
green/black), one 30 ft. lead (green), two 5 ft. color-coded leads (red/blue), 100/240V power
adapter with US power cord, optical USB cable, four T-shaped auxiliary ground electrodes,
set of ve spaded lugs, one 100 ft. tape measure, rechargeable NiMH battery pack, USB stick
with DataView software, ground tester workbook and user manual. GroundFlex® Adapter
Model 6474, four GroundFlex® sensors (5m), twelve color-coded rings, connection lead, two
extension leads on H reel (black/green) with color-coded alligator clips, one extra green and
black alligator clips, two BNC extension leads, calibration loop, three C-clamps, set of 2-reel
caddy’s, one inverter 12VDC to 120VAC watt (vehicle use), carrying case with wheels and
handle for meters and user manual.
1.4.1 Accessories and Replacement Parts
Bag#6-CarryingBagforGroundKits............................................. Cat. #2119.82
TapeMeasure-AEMC®(100ft) .......................................................Cat. #2130.60
Setoftwo,14.5"T-shapedAuxiliaryGroundElectrodes..................Cat. #2135.39
OpticalUSBCable............................................................................Cat. #2135.41
Replacement-ConnectionLeadforModel6472/6474.................... Cat. #2135.75
Replacement-OneBNC(15m/50ft)ExtensionLead...................... Cat. #2135.76
Replacement-Setof12,GroundFlex®Rings
(red,yellow,brown,orange) .............................................................Cat. #2135.77
Replacement-GreenExtensionLead .............................................Cat. #2135.78
Replacement-BlackExtensionLead...............................................Cat. #2135.79
Replacement-Setof3,C-clamps....................................................Cat. #2135.80
Replacement-CalibrationLoop....................................................... Cat. #2135.82
Replacement-CarryingCase ..........................................................Cat. #2135.83
Replacement-OneGroundFlex®(5m /16ft)Sensor.........................Cat. #2135.92
Replacement-SafetyAlligatorClip(black) ......................................Cat. #5000.99
Replacement-SafetyAlligatorClip(green) .....................................Cat. #5100.06
GroundFlex®Sensor10M.................................................................Cat. #2135.87
Order Accessories and Replacement Parts Directly Online
Check our Storefront at www.aemc.com/store for availability
6
GroundFlex®Adapter Model 6474
CHAPTER 2
GROUNDFLEX®ADAPTER
2.1 Control Features
50V CAT IV
1-2-3-4
1-2-3
1-2
1
2
3
4
For Use with the
Ground Tester Model 6472
GroundFlex
®
Sensor
SENSOR TURNS
SENSITIVITY
To Model 6472
Overload
INPUT
1
2
3
4
GroundFlex®Adapter
MODEL 6474
2
4
1
6
5
3
1. Inputs1through4forGroundFlex®sensors
2. ConnectorforconnectionleadtotheGroundTesterModel6472
3. OVERLOADindicator
4. SENSORTURNSselector:1,2,3or4
5. SENSITIVITYselector:x10,x1orx1/10
6. INPUTSELECTION:1,2,3,4,1-2,1-3or1-4
GroundFlex®Adapter Model 6474
7
2.2 GroundFlex®Sensor
TheGroundFlex®sensorsareplacedaroundaconductor(towerlegorpole)and
closed using a screw connector, which is part of the sensor. This closed loop
is then used to make a contact-free measurement of the current owing in the
conductor(leg)itiswrappedaround.
Thesesensorsarecurrentmeasurementclampsbutareabletoencloseobjects
thataremuchlarger.
GroundFlex®sensorsareavailableinlengthsofuptoapprox24ft(8m)andcan
beplacedaroundobjects(suchastowerlegs)uptoinapprox8ftdiameter(2.7m).
50V CAT IV
1-2-3-4
1-2-3
1-2
GroundFlex
®
Sensor
To Model 6472
Overload
INPUT
1
2
3
4
8
GroundFlex®Adapter Model 6474
2.2.1 Calibration of GroundFlex®Sensors
Calibrationisnecessaryforanewsensor,onethatisnolongeridentiedwhena
sensorhasbeenreplaced,ormorethan2lengthsofextensioncableisused.The
calibrationcoecientsarethenstoredintheModel6474.
NOTE: Do not move or touch the GroundFlex®sensor or the calibration loop
during the calibration. This could cause errors.
Startbyidentifyingeachsensorusingtheidenticationringsthataresuppliedwith
theModel6474:(1)Brown (2)Red (3)Orange (4)Yellow
• ConnectthecalibrationloopbetweenterminalsHandEoftheModel6472.
• ConnecttheModel6472and6474togetherusingtheconnectioncable.
• ConnecttheGroundFlex®sensorwiththeBrownringtoInput1oftheModel
6474,theonewiththeRedringtoInput2,theonewiththeOrangeringtoInput
3,andtheonewiththeYellowringtoInput4.
• CoiltheGroundFlex®sensorfourtimesaroundinthecalibrationloopandclose
itusingitsscrewconnector.Placetheconnectorasfaraspossiblefromthe
calibration device.
6472 6474
GroundFlex®Adapter Model 6474
9
1. Settheswitchofthe6472toSET-UP.
2. SettheSENSOR TURNSswitchto4.
3. SettheSENSITIVITYswitchtox1.
4. SettheINPUT SELECTIONswitchto1.
1-2-3-4
1-2-3
1-2
1
2
3
4
SENSOR TURNS
SENSITIVITY INPUT
5. PresstheHz/OPTIONSbutton5times.
ThedevicestartsbycomparingthecurrentIIntinjectedbythedeviceintothe
calibrationlooptothecurrentIAmeasuredbytheGroundFlex®sensor.Ifthey
aredierent,the"CAL"symbolblinkstorecommendacalibration.
x 5
4
H
E
S
x
11
AUTO
mA
m A
NOTE: To avoid measurement errors, do not touch the GroundFlex®sensor or
the calibration loop during the calibration.
Altri manuali per GROUNDFLEX 6474
2
Indice
Altri manuali AEMC instruments Adattatore
