Honeywell XNX Technical Manual

XNX Universal Transmitter
Section 2 - Installation and Operation
70
Figure 97. Setting Alarm Latching/Unlatching
UsethesameproceduretosetthedesiredvaluesforAlarm
2andFaults�Whenallsettingshavebeenmade,use
 to
navigatetothe
✓
onthedisplay�Use
✓
toacceptsettings�
Figure 98. Accept Settings
Whenthesettingshavebeensaved,thefollowingscreenis
displayed�
Figure 99. Settings Accepted Screen

Note: Whennon-latchingisselected,externalalarmlatchingis
recommended.
Set Units
TheSetUnitsmenuallowstheunitsofmeasurementdisplayed
ontheXNXmainmenutobeset�Thisoptionalsosetstheunits
transmittedviaHART,Modbus,orFoundationFieldbussensors
attachedtotheXNXtransmitter,reportingconcentrationsinPPM
or%VOL(exceptoxygen)�
Figure 100. Set Units Menu
Tochangetheunits,usethe  switchestohighlighttheunits
icon�Use
✓
toselectit�Thetransmitter’sdisplaywillchange
totheDisplayUnitSelectionscreenwhichshowstheavailable
choicesforthesensortypeinstalled�Usethe  switchesto
highlightthedesiredunitofmeasurement�Use
✓
toselectitor
✖
todiscardtheselection�

Figure 101. Display Unit Selection Screen
Caution:Whenchangingunitsofmeasure,checkalarmlevel
settingsfortheproperunitsandchangeasnecessary.
Oncetheunitsofmeasurementhavebeenset,usethe  
switchestonavigatetothe‘ü’toacceptthevalues�
mA Levels
ThisoptionallowstheusertoselectmAoutputlevelsforinhibit,
fault,andoverrange�Beamblockandlowsignalapplyto


Honeywell XNX Specifications

General

Ingress Protection	IP66/67
Product Type	Universal Transmitter
Enclosure Rating	IP66/67
Display	LCD
Communication Protocols	HART, Modbus, Foundation Fieldbus
Power Supply	24 VDC nominal, 18-32 VDC
Operating Temperature	-40°C to +65°C (-40°F to +149°F)
Material	Aluminum or Stainless Steel
Gas Types	Toxic, Oxygen, and Combustible gases
Output	4-20 mA
Relays	3 programmable relays
Approvals	ATEX, IECEx, UL, CSA
Sensor Compatibility	Electrochemical, catalytic, infrared, and other sensor types