Honeywell Analytics XNX Toxic Gas Detector

Interested in Honeywell’s latest gas detector?
Take a look at the Honeywell OmniPoint™

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Honeywell’s XNX Gas Detector advantage comes from a simple-to-use, low-maintenance universal platform that works with other safety equipment on a digital bus system, including Honeywell Analytics’ own Searchline Excel, Optima or other gas detectors, industry standard PLCs and third-party gas monitoring controllers. XNX is a universal gas detection system that supports Electrochemical, Infrared and Catalytic Bead gas monitors to deliver both toxic and combustible gas detector options and uses standard 4-20mA wiring and HART; options include Modbus, Fieldbus (pending) up to three relays and a local Hart Adapter for configuration and diagnostics using existing HART handheld devices. With 200+ unique configurations, XNX satisfies Class 1/Class 2 intrinsically safe, explosion-proof requirements in upstream/downstream oil, chemical, wastewater and other industries.

SureCell™ and Reflex™ Technologies – Powering the Next Generation of Electrochemical Sensors

Electrochemical sensors have proven popular for toxic gas detection due to their low power requirements, small size, and low cost. However, field studies have shown that not all designs can adapt to extreme environments without suffering some degree of cell degradation or failure. Honeywell Analytics’ patented SureCell™ electrochemical sensing technology overcomes the performance issues of conventional technology in high-temperature and high humidity environments.

Reflex™ Technology, a Honeywell Analytics patented diagnostic routine for electrochemical cells, is used with the XNX Universal Transmitter, Sensepoint XCD Gas Detector, Series 3000 MkII Gas Detector, and other Honeywell Analytics products. Reflex™ increases operator confidence in a gas detector’s operability by continuously monitoring the status of an electrochemical cell and sending an alert when a cell enters a fault condition that would render it incapable of raising an alarm when a gas is detected.

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.

The XNX user interface provides Alarm, Fault and configuration support via a large dot matrix display and LED indicators. Icons supported by seven language selections are used to ensure ease of operation around the world.

General Specifications
Material: LM25 Aluminum, painted (SS316 painted optional)
Cable Entries: 5 conduits/cable entries – (2 right, 2 left, 1 bottom) Available in ¾” NPT, or M25
Termination: Cage Clamp pluggable Terminal Blocks with retaining screws, 0.5 to 2.5mm (12-28 AWG)
Mounting: Integral cast mounting tabs provide secure mounting to surfaces and channel. Can be mounted to 2 to 6 inch pipe or ceiling with corresponding mounting kit (optional)
User interface: Standard Custom Backlit LCD. 2.5” High Resolution DOT Matrix Display. Discrete Alarm and Status indication. Reliable Non-Intrusive 4 button interface magnetic wand access.
Signal: 0-22mA analog current loop output with HART (version 6) compatible standard. Optional relay or Modbus.
Environmental
Temperature: -55°C to +65°C / -67°F to +150°F (sensor dependent)
Humidity: 20 to 90% RH non-condensing
IP Rating: NEMA 4X IP66
Options
Relay Option 3 – SPDT (2 Alarm, 1 Fault) Relays; 250 VAC 5A, 24VDC 5A (Resistive) with External Reset Input or Modbus option: RTU protocol; selectable Baud Rate
Optional HART with IS Port
Operating Voltage
18-24 VDC Nominal (EC & mV units 16-32 VDC; IR units 18-32 VDC (Class 2 supply required)
Power Consumption
XNX used with: electrochemical sensor: 6.2 watts; millivolt (catalytic bead or IR cell): 6.5 watts; point Infrared sensor (Searchpoint Optima): 9.7 watts; open-path Infrared
(Searchline Excel): 13.2 watts
Hazardous Area Approvals (Transmitter/Sensor Dependent)
UL, cUL classified: UL 1203 and 913 Seventh edition; CSA, CSA 22.2 No. 30, CSA 22.2 No. 157
Class 1, Division 1, Groups B, C, D / Class 1, Zone 1, Groups IIB + H2 T4 Tamb -40c to 65c
Performance Approvals (Sensor Dependent)
Flammable gases: CSA 22.2 No. 152, FM* 6310, 6320, DEKRA/EXAM* IEC/EN 60079-29-1, EN 61779-4:2000 Toxic and Oxygen
FM* ISA 92.0.01; DEKRA/EXAM* EN 45544:2000, EN 50104: 1999
Functional Safety: TUV EN 61508 SIL 2 Component Certification

Honeywell Analytics

For nearly 50 years, Honeywell Analytics has been protecting people who put their lives on the line every day. It takes a special level of drive and dedication to work in hostile environments, and we believe your workers deserve the same kind of commitment from us when it comes to securing their health and safety. Right from the start, our founders were determined to find better ways to design, build and manufacture reliable gas detection solutions. Through advanced technology and pure industry know-how, Honeywell Analytics continues to improve and evolve our products. Today, we’re proud to partner with customers worldwide who share our vision of vigilance and rely on us to help them protect what matters most. From custom-designed solutions to unmatched training and support, Honeywell Analytics is simply the smartest choice when you demand the best in safety.

Flammable Gas Detection with Explosion-Proof XNX Universal Transmitter – Honeywell Analytics