Honeywell XNX Universal Transmitter Technical Manual | Page 7

Honeywell Transmitter Technical Manual - XNX Universal Transmitter.
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XNX Universal Transmitter

Introduction

5

Safety
Read and understand this manual before installing, operating, or 
maintaining the XNX Transmitter. Pay particular attention to the 
warnings and cautions below. All of the warnings and cautions 
shown here are repeated in the appropriate sections of the 
manual.

Warnings

Installationmustbeinaccordancewiththerecognizedstandardsofthe
appropriateauthorityinthecountryconcerned.

Accesstotheinteriorofthesensor,whencarryingoutanywork,must
onlybeconductedbytrainedpersonnel.

Beforecarryingoutanyworkensurelocalregulationsandsite
proceduresarefollowed.Appropriatestandardsmustbefollowedto
maintaintheoverallcertificationofthesensor.

Toreduceriskofignitionofhazardousatmospheres,conduitrunsmust
haveasealfittingconnectedwithin18inches(45cm)oftheenclosure.

Toreducetheriskofignitionofhazardousatmosphere,disconnectthe
equipmentfromthesupplycircuitbeforeopeningthesensorenclosure.
Keepassemblytightlyclosedduringoperation.

NeveropentheXNXenclosureunderpowerunlesstheareaisknownto
benonhazardous.

Thesensormustbeearthed/groundedforIntrinsicSafety,electrical
safetyandtolimittheeffectsofradiofrequencyinterference.Earth/
groundpointsareprovidedinsideandoutsidetheunit.EMInote
forapplicationsusingshieldedcable:Cableshieldterminations
mustbemadeatthecableglandswithsuitableEMItypeglands.
AvoidterminatingcableshieldsattheEarthgroundluginsidethe
XNXenclosure.Incaseswherewiringisinpipe,ashieldedcableis
notrequired.Theexternalterminalisonlyasupplementalbonding
connectionwherelocalauthoritiespermitorrequiresuchaconnection.

TakecarewhenhandlingECsensorcellsastheymaycontaincorrosive
solutions.

Donottamperorinanywaydisassemblethesensorcells.

Donotexposetotemperaturesoutsidetherecommendedrange.

Donotexposethesensortoorganicsolventsorflammableliquids.

Attheendoftheirworkinglives,sensorsmustbedisposedofin
anenvironmentallysafemanner,inaccordancewithlocalwaste
managementrequirementsandenvironmentallegislation.DoNOT
incineratesensorsastheymayemittoxicfumes.

Highoff-scalereadingsmayindicateanexplosiveconcentrationofgas.

Verifyalloutputs,includingdisplay,afterinstallation,afterservice
events,andperiodicallytoensurethesafetyandintegrityofthesystem.

DonotusetheXNXUniversalTransmitterinoxygen-enriched
atmospheres.Concentrationsdisplayedwillbeadverselyaffectedby
oxygendepletion.

Afterchangingparameterswithahandhelddevice,verifythatthe
parametersettingsarecorrectatthetransmitter.

Thefactory-setpasscodesmustberesettopreventunauthorizedaccessto
thetransmitter’smenus.

Warnings:  Identifyhazardousorunsafepracticeswhichcould
resultinsevereinjuryordeath.

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