D2 Series Product Instructions
PleasedonotattempttomounttheS‐250‐12withintheCoolDomeitself,duetothelargeamountofheatcreatedbythepowersupply,willgreatly
reducethecoolingeffectoftheD2CoolDome’sheatpump.
HighVoltageA/CTypicalConventions,singlephase:
Color Symbol Description
Black L LineConductor,aka:“Hot”wire
White N NeutralConductor
Green G
, GroundWire,ChassisGround
LowVoltageconventions,D/C,directcurrent:
Color Symbol Description
Red V+ Positiveconductor
Black V‐ Negativeconductor
TheoutputoftheS‐250‐12externalpowersupply,canbeadjustedupanddown10%.ItisrecommendedtokeepthevoltageattheD2adjustedtoatleast
11.5vdc,butnomorethan13.0vdc.Byrunningtheenclosurehigherthan13.0vdcmaycauseprematurecomponentfailure.Itisbesttocheckandtunethevoltageat
theCoolDomewithavoltagemeteratthetimeofinstallation,andusetheadjustmentscrew,locatedontheS‐250‐12,totherightsideoftheterminalscrews,toraiseor
lowertheoutputvoltage.
Foralloutdoorwiring,alwaysuseanoutdoorratedwiring,orwiringinweatherratedconduit,outfrompowersupply,intotheCoolDome.Followalllocaland
applicablewiringandsafetystandards.
PleasekeepD/Cwirerunsshort,toreducelowvoltagelinedrop
.Also,thesuggestedwiringgaugetableisprovidedtofurtherpreventlowvoltagelinedrop,
andtoguideyouinselectingtheproperwiregaugeforthedcrunfromthepowersupplytothecooldome.
ItisalwaysadvisabletouseadriplooponallwiringgoingdirectlyintotheD2enclosure,toreducetheriskofwaterenteringanddamaginginternal
components.Allfittingsandsealsmustbefirmlytightenedandsealed,beforeplacingtheD2inservice.
InsidetheD2wehaveprovidedaconvenientScrewcageclampstyleterminalblockstowirethe12vdcpositive(V+),andthe12vdcNegative(V‐)terminal.
Pleasestriptheinsulationoffthelast3/8”ofthewiresandfastenwiringsecurelytoterminal,usingasmallbladescrewdrivertotightenthecagingmechanismonthe
terminalblocks.PleasebeespeciallyattentivetowireusingtheProperPolarity
,soasnottodamagetheinternalcomponents,ordamageyourcamerawithin.
12amps
12VoltsD/CVoltageDropforDotworkzD2CoolDome
Wireguage
InAWG(below)
Distance
(ft)>>
1.0 ft 10.0 20.0 30.0 40.0 50.0 100.0
4.0
0.006
0.062 0.124 0.186 0.248 0.310 0.620
6.0
0.010
0.098 0.196 0.294 0.392 0.490 0.980
AWG 8.0
0.016
0.156 0.312 0.468 0.624 0.780
1.560
10.0
0.025
0.248 0.496 0.744 0.992
1.240 2.480
12.0
0.040
0.400 0.800
1.200 1.600 2.000 4.000
14.0
0.063
0.628
1.256 1.884 2.512 3.140 6.280
GaugeMultiplier
Vdcdrop/ft
Voltagedrop(vdc)/distance(ft)
Acceptable
line drop for Wire
Gauge and Distance
27