RKI Instruments GX-2012 - Page 2

3.PerformingaFreshAirAdjustment
a.PerformingaFreshAirAdjustmentwillsettheCH4,CO,and
H2Schannelsto0andtheOXYchannelto20.9%.
b.Taketheinstrumenttoafreshairareawheretheairisfree
oftoxicorcombustiblegasandhasnormaloxygen(20.9%).
c.PressandholdtheAIRbutton.Thedisplaywillpromptyou
tocontinueholdingtheAIRbutton.
d.ThedisplaywillpromptyoutoreleasetheAIRbutton.The
GX-2012willautomaticallysetthefreshairreadingsforall
channels.
e.TheGX-2012isnowreadyforuse.
Note: If fresh air adjustment fails, refer to user’s manual.
4.FlowIntegrityTest
a.Placengeroverendofprobeorrubbertip.TheGX-2012
shouldgointoowfailinafewseconds.
b.PresstheRESETSILENCEbuttontorestartthepump.
c.Iftheinstrumentfailstoindicateowfailure,checkprobe
andhoseconnectionsforleaks.
5.BreathTest(forinstrumentsequippedwith 
 oxygensensor)
a.Ifconnected,removehoseandprobe.
b.Exhaleneartheinletttingoftheunit.Observethatthe
oxygenreadingdropsbelowthealarmsettingof19.5%and
theaudibleandvisualalarmsareactivated.
c.PresstheRESETSILENCEbuttontoresetthealarmsthe
reconnecthoseandprobe.
6.TurningtheGX-2012OFF
 PressandholdthePOWERENTERbuttonuntilTURNOFF
hasdisappearedfromthebottomofthescreen.
TheGX-2012isnowoff.
QuickReferenceGuideForModelGX-2012
PN71-0249RKRev0
RKIInstruments,Inc.33248CentralAve,UnionCity,CA94587
Phone(510)441-5656•(800)754-5165•www.rkiinstruments.com
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