Honeywell XNX - Page 21

XNX Universal Transmitter
Section 1 - Introduction
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1.4.2 The General Status Screen
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Figure 12. General Status screen
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TheGeneralStatusScreenshowsthestatusoftheXNX
Transmitter�
Status Indicator
Current Concentration Level
(Numeric)
Alarm 2 Set Point
Alarm 1 Set Point
Current Concentration Le
vel
(Bar Graph)
Full Scale
Concentration Units
Figure 13. General Status screen, normal operating mode
TheNormalOperatingModeicon indicatesproperoperation�
TheXNXdisplayalsoshowstheconcentrationlevelofthe
targetgasintwoways�Intherst,anumericvalueisshownin
theupperrightcornerofthedisplayintheunitsselected(ppm,
%LEL,%VOL)�Thesecondconcentrationdisplayisshownin
theformofabargraphrepresentingthecurrentconcentration
againstfullscaleandinrelationtothedenedalarmlevels�For
moreinformationonsettingrangeandalarmlevels,seeSection
2�6�2Range/AlarmSettings�SeeSection6�2�2,Section6�2�3,
andSection6�2�4fornegativedriftandzerodeviationvalues�
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The LCD screen’s refresh rates are 500 milliseconds (when the LCD heater is off) and 1 second
(when the heater is on).
Whenawarningistriggered,thewarningicon appearsand
informationisdisplayedontheGeneralStatusScreen�The
informationdisplayedalternatesbetweenscreensdisplaying
thegasconcentrationandthewarningcode�SeeSection5-
Warnings/Faultsformorewarningcodeinformation�
Warning Code
Warning Icon
Figure 14. General Status Warning detail
IftheFaulticon isdisplayed,afaultconditionhasbeen
triggeredandthedisplaywillalternatebetweenthetargetgas
concentrationandthefaultcode�SeeSection5-Warnings/
Faultsformorefaultcodeinformation�
Fault Icon
Fault Code
Figure 15. General Status Fault detail
Intheeventofmultiplewarningsorfaults,theusercanviewall
messageswiththetransmitter’sEventHistoryfunction�
WhenanAlarmicon
isdisplayed,thetargetgasconcentration
exceedsoneorbothpresetalarmlevels�TheGeneralStatus
Screendisplaysthegasconcentrationandthealarmlevel
exceeded�