Extech Instruments VPC300 - Page 14

14VPC300‐en‐GB_v1.55/15
ParticleCounterConsiderations

Particlepollutionisamixtureofvariouscomponentsincludingsmoke,dust,chemicals,mold,
andgases.Particleconcentrationscanaffectourhealthandcomfortlevels.Evaluatingthe
qualityoftheairbydeterminingtheconcentrationandsizeoftheseparticlescanhelp to
determineifaproblemexists.Locatingthesourceofthesevariousparticlescanhelpto
determineeffectivemethodsofreducingtheseandimprovingtheIndoorAirQuality(IAQ).

Onewaytodeterminethesourceofairparticula tesinaroomistotesttheairoutsideofthe
roomunderinvestigation.Determinetheconcentrationandsizeofparticulatesat
theairintake
tothatroom.PurgeorZerotheparticlecounterandthenmeasuretheconcentrationandsize
ofparticlesinmultipleareasoftheroomtobetested,todeterminetheeffectivenessofthe
incomingairfiltration.Theairtemperature,relativehumidity,andCO2levelsarealsoan
importantconsiderationforIAQashighhumidityandlowertemperaturescanbringaboutmold
creation.

IfaroomisclassifiedasanISOcleanroomorcleanzone,thecountsofparticlesizesforthat
classcannotbeexceededwhentested.
RefertotheISOCleanRoomClasschart(ISO
14644‐1:1999)forvalues.

TheVPC300isequippedwithastill/videocameratodirectlyseetheareas undertest.Data,
images,andvideocanbestoredonuptoan8GBmicro‐SDcard(notincluded)orinthemeter’s 
internal74MBmemory.

Thelifeofthemetercanbe
maximizedbytestingonlywhennecessaryandsecurelystoringthe
instrumentwhenitisnotinuse.Continuoususeisnotrecommendedandcanshortenthelifeof
theinstrumentespeciallyindustyenvironments.Settingupacommonsensemaintenance
scheduleandtestingtotheschedulewillgoalongwayinlengtheningthelifeoftheinstrument
sensor.


PCInterfaceandSuppliedPCsoftware

ThismeterhasthecapabilitytoconnecttoandcommunicatewithaPC.AUSBcableissupplied
andconnectstothejackonthemeter’sleftsidecompartment.
To install and use the software, please refer to the instructions provided on the supplied CD‐
ROMand/ortheinstructionsprovidedin
theHELPUtilitywithinthesoftwareprogram.

Checkthesoftwaredownloadpageofthewebsitewww.extech.comforthe latestversionofthe
PCsoftwareanditsoperatingsystemcompatibility.
