The XNX™ Universal Transmitter, now with HART EDDL/DTM, marks a new turn in gas detection from Honeywell Analytics. It supports the widest range of Sensors on a common platform and offers a modular choice of inputs and outputs. XNX is designed for flexible integration, simple installation, user-friendly operation and straight-forward maintenance. It is ideal for use with a range of gas monitoring controllers or industry standard PLCs. The introduction of our HART Enhanced Device Descriptor Language (EDDL) & Device Type Manager (DTM) software provides users with an at-a-glance indication of the health of their gas detectors in the field.
With 200+ unique configurations, XNX satisfies Class 1/Class 2 intrinsically safe, explosion-proof requirements in upstream/downstream oil, chemical, wastewater and other industries.
The enclosure is available in stainless steel or aluminum, with a marine-grade coating. Five threaded ports, available in metric or NPT versions, and ruggedized mounting options provide ultimate installation flexibility. Instrumentation built on various sensing technologies can be attached locally to the transmitter or remotely with the appropriate accessories.
Flammable gas detection 0 to 100% LFL/LEL
Point IR with heated optics provides immunity
to poisoning and no hidden faults
Open-path IR flammable gas detection in LELm measurement
Electrochemical cell offers toxic gas detection
IR cell provides CO2 and combustible gas
Robust and reliable operation in explosive
areas and harsh environments
Minimal training required
Plug-in Sensor replacement
All necessary accessories included
3 Versions - supports (Catalytic Bead and IR
Cell), Electrochemical Cell and IR (point and
open-path) gas detection
Multi-Purpose Detector (MPD) with field
serviceable mV, Catalytic bead and IR Cell
4-20 mA with HART® as standard
HART Enhanced Device Description
Language (EDDL) & Device Type Manager
Multiple communications options include up to
3 relays, Modbus® and FOUNDATION® H1
Optional local IS port for handheld HART
Easy to Install
3 or 4 wire operation, source, sink or isolated
Simple plug-in Sensors and replaceable cells
NEMA 4X IP66 rated for rugged indoor/outdoor use
Five conduit entries for ease of installation
Easy to Use
Large, backlit, easy-to-view LCD display offers multiSensory indicators
(visual icons, colored buttons, text, etc.) to display gas and Sensor
User interface supported by 8 selectable languages (English, Spanish,
German, Italian, Portuguese, French, Russian, Chinese)
Self-test and fault indication features
Non-intrusive, one-man operation
Quick calibration with auto-inhibit
UL, CSA, FM, DEMKO, DEKRA, InMetro, TUV, ABS, HART, IELDBus
Foundation, GOST and KTL approved for Hazardous Locations, Gas
Performance and SIL 2 ratings among others
Class I, Div 1, Groups A, B, C & D; Class II, Div 1, Groups F and G;
Class I Zone 1 Group IIC, Class II, Zone 20 & 21
Intrinsically safe barriers for HART
and EC connections
For additional information on certifications and approvals contact
EC/mV: 16V to 32V (24V nominal) ** Startup/Normal values
**IR: 18V to 32V (24V nominal) ** Startup/Normal values **
XNX EC 6.2 w <1A, <10ms@24VDC
XNX mV 6.5 w <750mA <2ms@24VDC
XNX IR (Optima) 9.7w <1A, <10ms@24VDC
XNX IR (Excel) 13.2w <1A, <10ms@24VDC
Termination-Crimp style pluggable with retaining screws, 12-28 AWG (2.5 to 0.5mm2)
with Shorting Jumpers: 14-28 AWG (2.0 to 0.5mm2)
To maintain EMC integrity, wiring must be shielded by either an integral
shield or run through conduit or pipe. Shield must provide 90% coverage.
Standard- HART over 3-wire 4-20 mA (sink, source, or isolated)
Optional- Modbus over RS-485
20 mA- HART over 3-wire 4-20mA (sink, source, or isolated)
compliant with NAMUR NE43
Cable Ports-5 – (2 right, 2 left, 1 bottom) Available in ¾” NPT, or M25
Recommended Cable- See the Distance Considerations for Installation section.
Unpowered battery life- (Real Time Clock) 3 years at rated storage temperature
Material- Marine grade aluminum alloy or SS316. 5-coat painted finish.
Dimensions- 159 x 197 x 113.8 mm / 6.138 x 7.75 x 4.48 inches
Weight- 2.27 kg (5 lb) Aluminum, 5 kg (11 lb) Stainless
XNX® Enclosure- Integral Mounting Lugs for Wall- or Optional Pipe-Mount, Optional Wall/
Standard- Custom Backlit LCD, magnetic wand operation of local user interface
Optional- HART Handheld with IS Port
Environmental - Transmitter Operating
IP Rating- IP66
Transmitter: -40°C to +65°C (-40°F to +149°F)
MPD**-CB1: -40°C to +65°C (-40°F to +149°F)
MPD**-I**: -20°C to +50°C (-4°F to +122°F)
Humidity- 0 to 99% RH non-condensing
Pressure- 80 kPa to 120 kPa
Air Speed- 0-6 m/sec
Environmental - Transmitter Storage
Temperature- -40°C to +65°C / -40°F to +149°F
Humidity- 0 to 99% RH non-condensing
Type: 3 form “C” SPCO contacts for alarm and fault indication.
Rating: 250 VAC, 5A/24 VDC, 5A (2 Alarm, 1 Fault)
A remote reset is provided to silence alarms. (The FOUNDATION Fieldbus, relay, and
Modbus options are mutually exclusive.)
Modbus/RTU over RS-485 physical layer. Interface isolated; includes switchable
120 Ohm termination resistor.
Baud rates: 1200 to 38,400; 19,200 default.
(The FOUNDATION Fieldbus, relay, and Modbus options are mutually exclusive.)
H1 Physical Layer.
31.25 kbit/s Manchester encoded signal.
AMIS-49200 Fieldbus MAU (media access unit).
SPC4-2 Fieldbus Controller.
The FOUNDATION Fieldbus, relay, and Modbus options are mutually exclusive.