D2 Series Product Instructions

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Excessive line drop for Wire Gauge and
Distance
Aboveincludes9amps@12vdcforD2CoolDometypicalcurrentdraw,with3ampsformax.camera&accessorydraw.
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VoltageDropEquationtoDetermineMinimumWireGaugetobeUsedonD/CrunBetweentheS‐250‐12PowerSupplyto
D2CoolDome.
Vd=voltagedropfor12vdcrun(nominal)
D=distanceofrun(ft)
Vgm=gaugemultiplier(vdcdrop,perfoot)
Vd=DxVgm
Whereweconservativelytrytokeepthevoltagedropunder1.2vdcoverthelowvoltagedirectcurrentrun.Thesemultipliersare
approximate,andvoltagedrop(Vd)ismaximumatfull12amploadat12vdc.Thisvoltagedropisunderfullyloadedcondition,whenthe
coolingunitisengaged,andcameraandallaccessoriesareon.Voltagedropwillbemuchless,ifthecurrentisnotatfullload.
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ReusableDesiccantCanister
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 Thereusabledesiccantcanistercontainsfortygramsofsilicagel.ThiswillpreventmoisturebuildupinsidetheCool
Dome.Makesuretoremovethecanister,locatedbelowthecameramount,fromitspackagingbeforetheCoolDomeisput
touse.Thereisasmallwindowonthecanister(whitecircle).Ensurethatthecrystalsareblue.Occasionally,especiallyin
humidenvironments,thecanistermayneedtobeserviced.Ifso,thecrystalsinthewindowturnpink,andthesilicagelis
saturatedwithmoistureandcanbereactivatedbybeingplacedinanovenat300°Fforthreehoursoruntilthecrystalsturn
blueagain.Thegelcanbereactivatedvirtuallyaninfinitenumberoftimes.
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Humiditycontrol/Dessicantcannistershouldberemovedfromitsfoilpackagingandsecuredwithinenclosureoutofthe
way.Theclearwindowshowninthewhitecircleshouldbebluewhencompletelydry.
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