Atec Hypatia-309 Manuel d'utilisateur télécharger pdf

HypatiaModels308and309CompleteSpecifications,Version1.33

18June2002,©19952002HypatiaInc.

Performancehasbeensubstantiallyimprovedinhardwareversion4instruments.Tighternewspecificationswillbepublishedlater.

Electrical:

ImpedanceMeasurement:

Accuracy:±1%ofreading(whenthetestcurrentis>500µ/impedanceinOhmsand>30mA)(Notes1&2,Graph1)

Range:0to100Ohms

MeasurementTechnique:Successiveapproximationanalogtodigitalconversionofsensedvoltageandcurrent.Measurementwindow:Either

2or3fullsinewavesdependinguponlinefrequency(e.g.3at60Hz,2at50Hz).Samplerate:~53KHz,yielding~2.6Kvoltageand2.6K

currentsamplespermeasurementwindowat60Hz,and~2.1Kvoltageand2.1Kcurrentsamples/windowat50Hz.Mathematicalconversion

totruermsvoltageandcurrentvalues,divisionindependentofphasetoyieldimpedance.Displayderivedfromfourlayerstackaveraging.

Voltageissensedattheprobeheadsbyinternalprobesenselinesor,forModel109probes,byprecisionKelvinsensing.

DigitalCurrentMeasurement:

Accuracy:±1%ofreading±4mA

Range:0to144Ampsrms(Note3,Graph2)

MeasurementTechnique:Conversionofinternalprecisionshuntresistorvoltageasabove.

BarGraphCurrentMeasurement:

Accuracy:±1%ofreading±4mAattransitionpoints(every2.5Arms)

Range:2.5to77.5Ampsrms(0to2.5Armsimplied)(Note3,Graph2)

MeasurementTechnique:Logicaltranslationofdigitalcurrentmeasurement.

DigitalTimer:

Accuracy:±.1%(DigitalTimerandAudio/VisualAlertsapplicabletoModel309or,ifserverdriven,Model308)

Range:1secondto59minutes,59seconds(extendedtimespossibleunderserversoftware)

InternalReference:16.777MHz(2e24)crystalcontrolledsystemclock.

Audio/VisualAlerts:

Whenenabled,soundsandflasheswhenanyuserspecifiedtestcurrentorimpedancelimitisviolated.

Accuracy:Logicallydetected.Theaccuracythereforeexactlymatchestheaccuracyofassociatedmeasurements.

OperatingDutyCycle:

Continuoustotestcurrentsof35Amps

Deratelinearlyto50%dutycycleat60Amps

MaximumCyclePeriod:35to60Amps:4Minutes

Maximumallowedcommonmodevoltagetoground:50Vrms,71Vpeakordc

Maximumnormalmodeopencircuitprobesourcevoltage(at132Vrmslinevoltage):8.6Vrms,12.1Vpeak

InputPowerRequirements:

90to132Voltsrms

48to66Hertzsinewave

MaximumPower:396Watts(3.0Armsat132Vrms)

CheckResistor:

Resistance:100milliohms±1%

Maximumcontinuouscurrent:17.5Amps

VerificationSchedule:

Therearenohardwarecalibrationadjustments,andthusnohardwarecalibrationisrequiredorpossible.Softwarecalibrationdataisavailable,

butit'snormallyunnecessarytomodifythisdata.Completetheformalperformanceverificationprocedureannuallyorfollowinganyrepair

service.

SafetyCertification:DesignedandmanufacturedtomeetorexceedUL3111.Instrumentsmanufacturedbefore1January2008weresolistedbyETL.

Environmental:

OperatingTemperatureRange:5to40°C

RelativeHumidityRange:0to90%noncondensing

Physical:

Mass:7.7kilograms(Weight:17pounds){Includingtwoprobes}

OverallDimensions:

Height:10.92centimeters(4.30inches)

Width:21.15centimeters(8.33inches)

Depth:26.0centimeters(10.24inches)

ProbeLength,EachSide:

Standard:1.5Meters(4.9feet)

Maximum:51.0Meters(167.2feet)at50Amps,85.0Meters(278.7feet)at40Amps

Note1:Impedanceaccuracyisspecifiedonlywhenthetestcurrentis>500µdividedbyimpedanceinOhmsand>30mA.

Note2:Figuresexcludecontactimpedancewhichaddsapproximately1milliohmwithsounddoublealligatorcliptypeprobeconnections,andapproximately2milliohm

withonealligatorclipandonepowerconnectortypeprobeconnections.IftheModel109Kelvinsenseprobesareutilized,contactimpedanceiseliminated.

Note3:Themeasurementcircuitsarebroadranged,buttheinstrumentshouldnotbeoperatedbeyondthemaximumcurrentlimitof60Ampsorthespecifieddutycycle

limitsduetothermallimitationsofcertainpowercomponents.

Models308and309SpecificationsV1.34,17January2008

HypatiaInc.ContactInformation

[email protected].Reportmailmisconductto[email protected].



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HypatiaModels308and309CompleteSpecifications,Version1.3318June2002,©19952002HypatiaInc.Performancehasbeensubstantiallyimprovedinh

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HypatiaModels308and309CompleteSpecifications,Version1.3318June2002,©19952002HypatiaInc.Performancehasbeensubstantiallyimprovedinh

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Atec Hypatia-309 Manuel d'utilisateur

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