Honeywell XNX User Manual

XNX Universal Transmitter Quick Start Guide
22
4.6.1 XNX Electrochemical (EC) Sensor Installation
CAUTION
For biased sensors (e.g. Nitrogen Dioxide) remove the sensor stabilizer from the bottom of the
sensor prior to installation.
UsingFigure11asaguide,followtheprocedurebelow:
1. Checkthatthelabelonthenewsensoristhecorrectgastype.
2. Unscrewtheweatherproofcover,loosentheretainerlockingscrew
withthesuppliedhexkeyandunscrewthesensorretainer.
3. Pluginthenewsensortakingcaretoalignthesensorpinswiththe
connector.
4. Retthesensorretainer,tightenthelockingscrewwiththesupplied
hexkeyandrettheweatherproofcover.
5. Countdowntimeofupto180seconds(dependentonsensortype)is
displayed.
6. Acknowledgementofthegastypewillberequiredbefore
proceeding.Formoreinformationonsettinggastype,seetheXNX
TechnicalManualSection2.51GasSelection.
7. Afterthesensorisinstalledandthegastypeisconrmed,the
Range,alarmlevelsandotherimportantsettingsmustbeset;see
appropriatesectioninSection6-PoweringtheXNXfortheFirst
Time.
8. OncetheXNXhasbeencongured,calibratethedetectorfollowing
theproceduresinSection8.1-Calibration.
Transmitter
Sensor Retainer &
Locking Screw
2
1
3
4
5
New Sensor
Weatherproof Cap
Figure 11. Installing the plug-in sensor

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