>> P.4
FeaturesDesignedforhumidityresistancetesting,lifetestingandacceleratedtestingMaximizedtestingareaThecylindricalpressurevesseldistributespressureevenlyandofferssuperiorstrength.Expandingthetestareatothemaximumsizeallowsforeasyloadingofprintedcircuitboardsandotherspecimens.PreventionofdewcondensationandwettingofspecimensComparedwithnaturalconvectiontestsystems,thedoublecylindricalstructureandproprietaryair-conditioningsystempreventsdewcondensationandwaterdropletsthespecimen.Temperaturecontrolandoperationofthetestareafanbeforeandaftertestingalsopreventsdewcondensationanddropletsfromformingonsamples,ensuringhighlyreliabletestingresults.(Featuringdryandwet-bulbtemperaturecontrolandunsaturatedcontrol)fallingonAir-circulatingfanforhigh-accuracytestingTheprovisionofanair-circulatingfanreducestemperatureandhumidityvariationinthetestareaandallowsforuniformstresstobeappliedtoaspecimen.thedouble-chamberComparedconfiguration,thesingle-chamberconfigurationincludesanair-circulatingfan,sotemperatureandhumidityvariationisreduced.toStructure(Chambercrosssection)PressurevesselcomponentsInnercylinderChamberinteriorInternalchambertemperaturesensorAir-circulatingfanHumidifyingwaterheaterClothwickHumidifyingwaterWet-bulbtemperaturesensorInternalchambertemperaturedistributionmeasurementdata(example)EHS-222M1.3°Corless(±0.65°C)1451401351301251201151101051009590858075706560555045403530250:00:000:10:000:0:000:30:000:40:000:50:001:0:001:10:001:20:001:30:001:0:001:50:002:00:00Ch1Ch2Ch3Ch4Ch5Ch6Ch7Ch8Ch9TestconditionsTemperatureandhumiditysettings:130°C/85%rhControlsystem:UnsaturatedtestMeasurementpoints:9pointsasshowninthefigureontheright759Center863142Front3
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