MSA ULTIMA X5000 - Maintenance and Troubleshooting; XIR PLUS Cleaning Procedure

6 Maintenance
WARNING!
UseonlygenuineMSAreplacementpartswhenperforminganymaintenanceproceduresprovidedinthismanual.Failureto
dosomayseriouslyimpairsensorandgasmonitoringperformance,alterflameproof/explosionproofcharacteristicsorvoid
agencyapprovals.Failuretofollowthiswarningcouldcausetheproducttofailtoperformasdesignedandpersonswhorely
onthisproductfortheirsafetycouldsustainseriouspersonalinjuryorlossoflife.
RepairoralterationoftheULTIMAX5000GasMonitor,beyondthescopeofthemaintenanceproceduresprovidedinthis
manualorbyanyoneotherthanauthorizedMSAservicepersonnel,couldcausetheproducttofailtoperformasdesigned
andpersonswhorelyonthisproductfortheirsafetycouldsustainseriouspersonalinjuryorlossoflife.
TheULTIMAX5000GasMonitorisconstantlyperformingaself-check.Whenaproblemisfound,itdisplaystheappropriate
errormessage.Whenacriticalerrorisdetectedwithinthedevice,the4-20mAoutputsignalgoestoafaultcondition.
6.1 ULTIMAXIRPLUSCleaningProcedure
Thepresenceofparticulatematter,oilfilms,liquidwater,ortheresiduefromwaterdropsonthetwomonitorwindowscan
adverselyaffectitsperformance.TheXIRPLUSsensorguardisdesignedtopreventforeignsolidsorliquidsfromreaching
themonitor'sopticalsystem.Additionally,heatingelementsareincorporatedintothedevicetopreventwatercondensation.
Undersevereconditions,however,somematerialmaycollectonthesesurfacesanditmaybenecessarytooccasionally
checkandcleanthewindows.
Whilebothwindowsaremadeofahighlydurablematerialthatisnoteasilyscratched,avoidexcessivepressurewhen
cleaningthem.Clean,cotton-tippedapplicatorsarethemostconvenienttooltoremovematerialcollectedonthewindows.
• Useadryapplicatororonemoistenedwithdistilledwatertowipethewindowandremovedust.
• Useanadditionalclean,dryapplicatortoremoveanyresidualwater.
• Useanapplicatormoistenedwithisopropylalcoholtoremoveheavydepositsofsolids,liquidsoroilfilms.Cleanthe
windowagainwithasecondapplicatormoistenedwithdistilledwater;then,drythewindowwithafinalapplicator.
• Avoidusingexcessiveamountsofwateroralcoholinthecleaningprocedure,andinspectthewindowtoensurethat
theentiresurfaceisclean.
• Thedevicewillgointoa“LowSignal”faultduringcleaningwithananalogoutputto2.0mA.
TocleantheXIRPLUSsensor:
1. RemovetheSensorGuard.
2. Placeanopaqueobject(pieceofpaper,cardboard,etc.)betweenthelightsourcewindowandthemirrorto
completelyobscurethelightpathfortwotothreeseconds.
The ULTIMA X5000 analog output is in a fault condition while sensor is partially blocked.
The display will indicate “Low Signal'’.
Whilein“LowSignal”fault,thesensorwillnotrespondtothepresenceofgas.
3. Whencleaningisdoneandtheobjectsareremovedfromthesensorwindow,thedevicereturnstonormaloperation.
Ifwaterorisopropylalcoholwasused,allowthedevicetooperatefor15minutestocompletelydrybeforereplacing
thesensorguardandcontinuingtomonitorforcombustiblegas.
4. Replacethesensorguardorflowcap.
68 Ultima X5000 Gas Monitor US
6 Maintenance