3.3 ProductInstallationCheckList
BeforeInstallation
• Reviewnationalelectricalcodes
• Reviewlocalproceduralandbuildingcodes
• Determineoptimumtransmitterplacement
• Determinewirerequirements
• Determinemountinghardwarerequirements
• Reviewapprovalsandensuresuitabilityforinstallation
Mounting
• Attachappropriatesensortohousingorjunctionbox(see3.4.3SensorOrientationforpropersensororientation)
• Mounttransmitterorjunctionboxusingappropriatemountinghardware
• Confirmfreeairflowaroundthesensor
3.4 Mounting
WARNING!
Refertomanualaddendum(P/N10182779)forCertificationInformationbeforeinstallation.
Sometoxicgasesareprovidedinafritlesssensorhousing.ThefritlesssensorhousingislabeledasDiv2orZone2andis
approvedforDiv2orZone2installationsonly.TheprotectionmethodisNonincendiveorTypenrespectively.Ensureall
componentsareapprovedforthewiringmethodbeingusedandinaccordancewiththeNationalElectricalCodeofthe
countryofuse,anyapplicablelocalregulations,thismanualandtheaddendumtothemanual.
Failuretofollowthiswarningcanresultinseriouspersonalinjuryordeath.
3.4.1 SensorMountingLocation
Thebestlocationforthetransmitterandthesensormaynotbethesamelocation.Sensorsshouldbeplacedinalocation
whereagasleakismostlikelytobedetected.Whenthebestsensorplacementwouldnotallowthetransmitterdisplaytobe
easilyviewedoraccessed,aremotejunctionboxcanbeusedtomountthesensorremotelyfromthetransmitter,allowing
bothtobeinstalledintheoptimumlocation.
Twomainfactorsshouldbeconsideredwhenchoosingasensorlocation.Thefirstisthedensityofthetargetgasrelativeto
theair.Gases,suchaspropane,thatareheavierthanairshouldbeplacedneargroundlevelwhilegasesthatarelighter
thanairshouldbeplacedabovepotentialleaksources.
Optimumsensorplacementwilldependonthesurroundingprocessingequipment,suchaspipes,valves,orturbines.MSA
offersagasandflamemappingservicethatsystematicallyevaluatespotentialsourcesofleaksandrecommendsdetector
quantityandplacementtocreatethemosteffectivedetectionsystem.
3.4.2 TransmitterMountingLocation
Thetransmitterdisplayshouldbemountedsothatthescreenisvisibleandeasilyaccessedafterinstallation.The
electronicsassemblyinsidethemetalenclosurecanberepositionedinanyofthefourself-aligninginteriorholestoensure
thedisplayisproperlyorientedandtoprovidemaximumflexibilityforusingconduitentries.
US Ultima X5000 Gas Monitor 14
3 Installation