MSA ULTIMA X5000 - Page 24

○ NeverremoveorreplaceasensorbodyassemblyoranUltimaXIRPluswhileunderpowerorwhenexplosive
hazardsarepresent.
○ ConfirmthattheareaisfreeofexplosivehazardsbeforeremovingorreplacinganXCellSensorunderpower.
○ ToremoveanXCellSensor,unscrewXCellSensorthreefullturns,wait10seconds,andthenremovetheXCell
Sensorcompletely.
Failuretofollowthiswarningcanresultinseriouspersonalinjuryordeath.
3.6.2 RetrofitApplicationswithUltimaX
TheUltimaX5000wasdesignedtobeeasilyretrofittedwithexistingUltimaXwiring.WhenreplacinganexistingUltimaX
withtheequivalentX5000sensortechnology,thefollowingitemsneedtobecheckedinorderfortheX5000tooperate:
• Wiregaugeneedstobe18-14AWG
• SufficientpowermustbesuppliedtotheX5000inaccordancewiththemaximumwirelengths(seetables1-6).
Iftheserequirementsaremet,performanceoftheX5000shouldmeetthenoiseimmunitystandardequivalentofthe
UltimaXusingtheexistingwiring;However,theinstallationmaynotmeetthelatestEMCEN50270noiseimmunitystandard
thattheX5000meetswiththegroundingandwiringschemeasindicatedinI/OdrawingSK3015-1051.
3.6.3 ElectricalHardwareRequirements
Braidedshielded,twistedpair,instrumentqualitywireorcableshouldbeusedtominimizethepossibilityofnoise
interferenceandcontactwithothervoltages.Selectionofshieldedcablemustcomplywithlocalrequirements.
Conduit,inadditiontobraidedshieldedwire,mayalsobeneededinareaswherelargeamountsofelectricalnoiseis
expected.Allcableshieldsshouldbeterminatedtoearthgroundatoneendonly.
TheULTIMA

X5000’s(RED)powerconnectorterminalscanaccommodateupto14AWG(2.08mm
2
).Fourconductorsare
alsorequiredfortheULTIMA

X5000remotejunctionboxes.
IncomingpowerandsignalcablesshouldbeabraidedshieldcablesuchasAlphaWire3248orequivalent.Thebraided
shieldmustbeterminatedtotheinstrumenthousingwitha360degreeconnectiontoearthgroundasshowninFigure29or
alternatively,theearthgroundattheuser’spowersourcelocation.AnexternalClass2powersupplyisrequiredtosupply
11-30VDCtotheULTIMA

X5000.IncomingpowerandsignalcablesshouldbeabraidedshieldcablesuchasAlphaWire
3248orequivalent
3.6.4 PowerLoadRequirementsandMaximumMountingDistances
Considerfutureneedswhenselectingcablesizeandpowersupply.ThemaximumdistancebetweentheX5000transmitter
andthepowersupplydependsonthesensorconfiguration(sensingtechnologyandoneortwosensors),wiregauge,and
thepowersupplyvoltage.Thetablesbelowoutlinethemaximumtransmittermountingdistances.Firstdetermineifthe
sensor(s)willbelocallyorremotelymounted.Thenchoosesensortype(s).Thecorrespondingnominalmaximumpower
andmountingdistancesbywiregaugeareshown.
US Ultima X5000 Gas Monitor 24
3 Installation