>> P.6
FeaturesControlfunctionsthatmakeuseofconventionaltestdataThecontrolfunctionscanbeselectedfromdry&wet-bulbtemperaturecontrol(M/MDtype),unsaturatedcontrol,andwet-saturatedcontrolaccordingtotheconventionaltestdata.ThreemodesofoperationcontrolWiththeadditionofAir-HASTmode(forM/MDtypeonly),fourdifferenttypesoftestingcanbeperformedononechamber.Wetanddrybulbtemperaturecontrol(M/MDtype)TestperiodChambertemperatureWetbulbtemperature+100˚CGradientChamberpressure0.010MPa(Gauge)ExhaustvalveopenedGradientInholdprocessUnsaturatedcontrol(humidifyingwatertemperaturecontrol)TestperiodChambertemperatureHumidifyingwatertemperature+100˚C30˚CChamberpressure0.010MPa(Gauge)ExhaustvalveopenedHumidifyingwaterdischargeWetsaturatedcontrolTestperiodChambertemperatureHumidifyingwatertemperature+100˚CChamberpressure0.010MPa(Gauge)Exhaustvalveopened5lThetemperatureandhumiditygradientbeforeandaftertestingcanbecontrolled.lAftertestingiscompleteandchamberpressurereaches0.010MPa(Gauge),onlyairisdischarged;humidifyingwaterisretained.lIntheholdprocess,temperatureandhumidityinsidethechamberaremaintainedatthespecifiedlevel.(+50to+95˚C/75to95%rh)lDuringtemperatureheat-upwhencondensationcaneasilyoccuronthespecimen,thetemperatureofthehumidifyingwaterautomaticallyincreaseswhilekeepingit30˚Clowerthanthechambertemperature.lAftertestingiscomplete,thechamberislefttocoolanddepressurizenaturallyuntilchamberpressurereaches0.010MPa(Gauge).Thenbothairandwateraredischarged.lChambertemperatureiscontrolledthroughahumidifyingheater.(chambertemperature=humidifyingwatertemperature)lAftertestingiscomplete,thechamberislefttocoolanddepressurizenaturallyuntilchamberpressurereaches0.010MPa(Gauge).Thenonlyairisdischarged;humidifyingwaterisretained.
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