2. RKI
  3. GX-2012

RKI GX-2012 User guide

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are turned on: LNCH BRK, ID DISP, CL RMNDR, and BP RMNDR Set to
CONFIRM
a. AttachtherubbernozzleorsamplehosetotheGX-2012’s quickconnectinletfitting.
b. Ifahoseisused,attachprobetohose.
c. ToturnontheGX-2012,pressandbrieflyholdthePOWERENTERbuttonuntilyouheara
beep.TheGX-2012willbegin itswarmupsequence.Thefollowingscreensmayappear
duringthewarmupsequence:
CALTIMEREMAINING(factorysettoappear)
•Iftheinstrumentifoverdueforcalibration,theGX-2012 displaysCAL.PresstheRESET
SILENCEbuttontocontinue.
•Calibrationshouldbeperformedassoonaspossible.
BUMPTIMEREMAINING(doesnotappearwithfactorysetting)
•Iftheinstrumentisoverdueforbumptesting,the
GX-2012displays“tEStB--Limit”.PresstheRESETSILENCEbuttontocontinue.
•Abumptestshouldbeperformedassoonaspossible.
SENSORFAILURE
•IftheGX-2012experiencesasensorfailureduringstartup,theLCDwilldisplayFAILand
indicatewhichsensor(s) failed.TocontinueoperationpressandreleaseRESETSILENCEto
acknowledgethefailure.Gasreadingsforthatsensorwillbereplacedby“---”.
•Itisnecessarytoreplacethesensorandrecalibrate beforetheGX-2012isused.
2. MeasuringModeScreen
a. AfterwarmuptheGX-2012willdisplaythefollowing:CH40%LEL,OXY20.9%,CO0ppm,
H2S0.0ppm(somereadings maynotappearifsensorsarenotinstalled).
b. Ifthereadingsarenotdisplayingfreshairvaluesasabove, youmustperformaFreshAir
Adjustment.
QuickReferenceGuideForModel
GX-2012
Note: Turn on and adjust the GX-2012 gas monitor in a known
fresh air area.
1.TurningtheGX-2012ON
Note: This start up sequence assumes the following maintenance mode items
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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fingeroverendofprobeorrubbertip.TheGX-2012 shouldgointoflowfailinafew
seconds.
b. PresstheRESETSILENCEbuttontorestartthepump.
c. Iftheinstrumentfailstoindicateflow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fitting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.
PN71-0249RKRev0
120110/1000
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