Lenovo ThinkSystem NE1032T User Manual

108 NE1032T Installation Guide
Particulate Contamination
Attention:Airborneparticulates(includingmetalflakesorparticles)andreactive
gasesactingaloneorincombinationwithotherenvironmentalfactorssuchas
humidityortemperaturemightposearisktothedevicethatisdescribedinthis
document.
Risksthatareposedbythepresenceofexcessiveparticulatelevelsor
concentrations
ofharmfulgasesincludedamagethatmightcausethedeviceto
malfunctionorceasefunctioningaltogether.Thissp ecificationsetsforthlimitsfor
particulatesandgasesthatareintendedtoavoidsuchdamage.Thelimitsmustnot
beviewedorusedasdefinitivelimits,becausenumerousotherfactors,suchas
temperatureor
moisturecontentoftheair,caninfluencetheimpactofparticulates
orenvironmentalcorrosivesandgaseouscontaminanttransfer.Intheabsenceof
specificlimitsthataresetforthinthisdocument,youmustimplementpractices
thatmaintainparticulateandgaslevelsthatareconsistentwiththeprotectionof
humanhealth
andsafety.IfLenovodeterminesthatthelevelsofparticulatesor
gasesinyourenvironmenthavecauseddamagetothedevice,Lenovomay
conditionprovisionofrepairorreplacementofdevicesorpartsonimplementation
ofappropriateremedialmeasurestomitigatesuchenvironmentalcontamination.
Implementationofsuchremedialmeasuresisa
customerresponsibility..
Contaminant Limits
Particulate
•Theroomairmustbecontinuouslyfilteredwith40%atmospheric
dustspotefficiency(MERV9)accordingtoASHRAEStandard52.2
1
.
•Airthatentersadatacentermustbefilteredto99.97%efficiencyor
greater,usinghigh‐efficiencyparticulateair(HEPA)filtersthatmeet
MIL‐STD‐282.
•Thedeliquescentrelativehumidityoftheparticulatecontamination
mustbemorethan60%
2
.
•Theroommustbefreeofconductivecontaminationsuchaszincwhis‐
kers.
Gaseous
• Copper:ClassG1asperANSI/ISA71.04‐1985
3
• Silver:Corrosionrateoflessthan 300Åin30days
1
ASHRAE52.2‐2008‐MethodofTestingGeneralVentilationAir‐CleaningDevicesforRemoval
EfficiencybyParticleSize.Atlanta:AmericanSocietyofHeating,RefrigeratingandAir‐Con‐
ditioningEngineers,Inc.
2
Thedeliquescentrelativehumidityofparticulatecontaminationistherelativehumidity
atwhichthedustabsorbsenoughwatertobecomewetandpromoteionicconduction.
3
ANSI/ISA‐71.04‐1985.Environmentalconditionsforprocessmeasurementandcontrolsystems:
Airbornecontaminants.InstrumentSocietyofAmerica,ResearchTrianglePark,NorthCar‐
olina,U.S.A.

Lenovo ThinkSystem NE1032T Specifications

General

Brand	Lenovo
Model	ThinkSystem NE1032T
Category	Switch
Language	English