Honeywell XNX - 4.6.1 XNX Electrochemical (EC) Sensor Installation

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