Specifications

EN.PM.UM13 20140227 Earth Networks Weather Station Page 9 of 47
TheSensorShelter(oftenreferredtoasanaspiratedshelter)servestwoprimary
purposes:
 ShieldstheTRHsensorfromdirectsunlight,whichcouldyieldinaccurate
readings.Thedesignminimizesheatbuild‐upbyenablingairtoflowthrough,
resultingin"true"airtemperaturereadings.
 ProtectstheTRHsensorfromprecipitationwhichcouldcauseinaccurate
readingsaswellasdamagetotherelativehumiditysensor.
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TheDataCabletransportsdatafromtheweatherstation'soutdoorcomponentsto
theEarthNetworksNetworkAppliance(ENNA),locatedindoors.TheDataCableis
UV‐ratedandcanberunalongtheweatherstationmastwithoutconduit;however,
conduitshouldbeusedtoprotectthecablewhenrunningitoverthelengthofroof
andintothebuilding.Ifyourbuildingcodesrequiredifferentratingsofcable,please
contactEarthNetworksWeatherStationTechnicalSupport.
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NOTE:Cableshouldnotberunacrossrooftopsurfaceswithoutprotectiveconduit
(notincluded).
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OutdoorComponents–OptionalLightningSystem
TheWeatherStationalsohasanoptionallightningdetectionsystemthatusesthe
LightningAntennawiththeLightningDigitalSignalProcessor(DSP)todetectthe
uniqueradiofrequencysignatureofstaticdischargecausedbylightning.Thissystem
usesanintegratedGPSSensorthattrackstimedowntothelevelofananosecondin
ordertoplotthegeographiclocationwiththehighestaccuracy.Thetimeandsensor
locationarecriticalforintegrationintotheEarthNetworksTotalLightningNetwork
(ENTLN).Eachlightningsensorinthenetworkworksaspartofagroupingofsensors
totriangulatelightningstokesbasedontimeandgeographiclocation.Thegrowing
densityoftheEarthNetworksTotalLightningNetworkallowsgreaterresolutionof
lightning–allowingdetectionofbothintracloud(IC)andcloud‐to‐ground(CG)
lightning.
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