Honeywell XNX User Manual

XNX Universal Transmitter Quick Start Guide
39
6 Powering the XNX for the First Time
6.1 XNX Units Configured for EC, mV, and IR (except Searchline
Excel)
After mounting and wiring the XNX, the plug in sensor should be fitted (if
equipped) and the installation visually and electrically tested as below.
WARNING
Prior to carrying out any work, ensure local and site procedures are followed. Ensure that the
associated control panel is inhibited so as to prevent false alarms. Minimum and maximum
controller alarm levels should not be set at less than 10% or greater than 90% of the full scale range
of the detector. CSA and FM agency limits are 60% LEL or 0.6mg/m
3
.
CAUTION
The following procedure should be followed carefully and only performed by suitably trained
personnel.
1. Checkthatthetransmitteriswiredcorrectlyaccordingtothis
manualandtheassociatedcontrolequipmentmanual.
2. Ifequipped,unscrewtheweatherproofcover,loosenthesensor
retainerlockingscrewandunscrewtheretainer.
3. Pluginthesensorcartridgetakingcaretoalignthesensorpinswith
theconnectorholesinthePCB.
CAUTION
For toxic sensors, remove the shorting clip from the bottom of the sensor prior to installation. For O
2
sensors, there is no shorting clip provided.
4. Retthesensorretainer,tightenthelockingscrewandretthe
weatherproofcover.
NOTE:
Before replacing the cover on the transmitter housing, coat the threads with
anti-seize compound to prevent corrosion buildup.
Also inspect the cover o-ring for cracking or any other defect that might
compromise the integrity of the seal. If it is damaged, replace with the o-ring
supplied in the accessory kit.
5. ApplypowertotheXNXwhichwillinturnprovidepowertothe
detector.
6. Thedetectoroutputwillbeforcedto3mA(defaultfault/inhibit).
7. TheXNXdisplaywillenterastartuproutinedisplayingthe
initializationscreen,thenthetransmitterloadsitsoperatingsystem,
datafromthesensorandchecksifitisthesametypetransmitter
andsensorsoftwareversionnumbers,gastype,thedetection
rangeandspancalibrationgaslevel,estimatedtimetonext
calibrationdue,andselftestresult.Theboot-upproceduretakes
approximately45seconds.TheLCDandLEDtestisperformedin
theinitializationafterpoweringon.AllLCDpixelsandLEDs(red,

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