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WE A T HERINS T RUMEN T S

ElectricalDamage-CommonCauses&RecommendedPrevention

Electricaldamagecanbecausedbymanydifferentfactors.Belowaresomeofthemorecommoncausesand

somesuggestedmethodsofminimizingpotentialproblems.

CommonCauses:

Storm Activity

PowerSurges

Yourself

-lighteninginyourareacandodamagetoyourinstrumentsindifferentways. Theobvious

wayisduetoadirectornearbystrike.Inaddition,lighteningstorms,duststorms,drysnowstormsand

strongdrywindscanallcausestaticelectricitytobuilduponandaroundyourexternalsensors.Regardless

ofthecause,thisbuiltupelectricityitselfthroughthecableconnectingtheexternalsensorsto

theinstrument.

- A surgemaycomefromtheelectriccompany’sswitchinggeneratorsorpowergrids,from

localindustriesorafterpowerinterruptionwhenaccumulatedpowersuddenlysurgesbackthrough AClines.

Eventheon-and-offswitchingoflargeelectricalappliances,suchasrefrigeratorsorclothesdryerscan

createdamagingfluctuations. Thisisespeciallytruewithsensitiveweatherrecordingdevices.

- Areyouconstantlygivingand/orreceivingashockeverytimeyoutouchadoorknoborother

person?Ifso,youhaveagreatdealofstaticelectricityinyourenvironment.Ineithercase,itispossiblefora

persontocarryenoughofachargetodamageaninstrument.

RecommendedPrevention:

UseSurgeProtectors

Discharge Yourself

-forthe ACadapter,aUL 1449ratedsurgeprotectorwithEMI/RFIfilteringis

recommended. Thisratingwillbeclearlylistedonthepackagingofallgoodqualitysurgeprotector.

-Iftheinstrumentsarelocatedinanenvironmentwherestaticelectricityisaproblem,

makesurethatyoudischargeyourselfbeforetouchingtheinstrument(s). Theshockthatyougetfrom

touchingadoorknoboranotherpersoncanoftenbesufficienttodamageaninstrument.

30SAMUEL BARNETBOULEVARDNEWBEDFORD,MASSACHUSETTS02745U.S.A.

TEL.508.995.2200WWW.MAXIMUM-INC.COMFAX800.989.2580

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