Honeywell XNX Technical Manual

XNX Universal Transmitter
Section 2 - Installation and Operation
40

EC
Adaptor
Optional Local HART
IS Barrier must
be connected to J1
EC IS Barrier must
be connected to J2
4
3
2
1
-
+
6
5
J1 HART
S1 S2
J2 EC Barrier
Terminal Block 1
Local HART
IS Barrier
(optional)
HART
Adaptor
EC IS Barrier
Sensor Cartridge
Weatherproof Cap
Sensor Retainer
Sensor Cartridge
Weatherproof Cap
Sensor Retainer
Local Sensor Mounted to Transmitter
Sensor Mounted to
Remote Sensor Kit
Figure 42. EC Personality Wiring
XNX Electrochemical Sensor Installation
EC Sensor Installation
Caution: Amissingoxygencellwillresultin0%V/VO
2
gas
concentration,thustriggeringalarmevents.Inthissituation,check
theconnectionoftheECcelltothesensorconnectorboard.
Caution: Forbiasedsensors(e.g.,nitrogendioxide)removethe
sensorstabilizerfromthebottomofthesensorpriortoinstallation.
UsingFigure42asaguide,followthisprocedure:
1�Verify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�Takecaretoalignthesensorpins
withtheconnector�
4�Retthesensorretainer,tightenthelockingscrewwiththe
hexkey,andrettheweatherproofcover�Countdowntime
ofupto180seconds(dependingonthesensortype)will
bedisplayed�
5�Acknowledgementofthegastypewillberequiredbefore
proceeding�Formoreinformationonsettinggastype,see
Section2�5�1GasSelection�

Honeywell XNX Specifications

General

Brand	Honeywell
Model	XNX
Category	Transmitter
Language	English