Explosion-Proof Transmitters

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XNX™ Universal Transmitter

Supports the widest range of sensors on a common platform and offers a modular choice of inputs and outputs (saving customers time and money).
Features & Benefits
  • Flammable gas detection 0 to 100% LFL/LEL
  • Flexible operation options
  • Minimal training required
Quick Specs
  • Material: LM25 aluminum, painted (SS316 painted optional)
  • Temperature: -40° to +65°C / -40° to +150°F (sensor dependent)
  • Humidity: 20 to 90% RH (non-condensing) 
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Product Overview

XNX's 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 supports Electrochemical, Infrared and Catalytic Bead gas monitors 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. 

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. 

Additional Features and Benefits: 

High performance 

  • 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 LEL-m measurement
  • Electrochemical cell offers toxic gas detection in ppm
  • IR cell provides CO2 and combustible gas monitoring   

Flexible Operation

  • 3 versions - supports mV (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 capability
  • 4-20mA with HART® as standard 
  • Multiple communications options include up to 3 relays, MODBUS® and FOUNDATION® H1 Fieldbus (pending) 
  • Optional local IS port for handheld HART configurator   

Easy to Use

  • Large, backlit, easy-to-view LCD display offers multisensory indicators (visual icons, colored buttons, text, etc.) to display gas and sensor readings 
  • 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   

Easy to Install 

  • 3 or 4 wire operation, source, sink or isolated
  • Use with conduit or cable installations
  • Simple plug-in sensors and replaceable cells
  • NEMA 4X IP66 rated for rugged indoor/outdoor use  

Cost Effective

  • Minimal training required
  • One-man operation
  • Plug-in sensor replacement
  • All necessary accessories included   

Applications 

  • Offshore Oil & Gas production platforms
  • Onshore Oil terminals
  • Refineries
  • Gas Transmission
  • Gas Distribution
  • LNG terminals
  • Gas storage terminals
  • Chemical plants
  • Petrochemical plants
  • Solvent recovery operations
XNX Universal Transmitter - Overview Image

Popular Accessories

We have a multitude of accessory items to go with your monitor

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XNX Calibration cup

S3KCAL
Calibration cup (flow adapter) for Series 3000 and XNX EC toxic sensors
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XNX Duct mounting kit for Series 3000 and XNX EC toxic sensors

S3KDMK
Duct mounting kit for Series 3000 and XNX EC toxic sensors
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XNX Remote mounting kit for Series 3000 and XNX EC toxic sensors

S3KRMK
Remote mounting kit for Series 3000 and XNX EC toxic sensors

Frequently Asked Questions

Have a question about the product features or warranty? Find the answers here.
We do not sell our products directly on our website but we would be happy to assist you with your gas detection needs.  On each product page you will see a red button on the right-hand side titled “HOW TO BUY”.  If you click on this button a form will appear which will go directly to one of our sales representatives once completed and submitted.  

You can also call one of our sales representatives directly.  Click here to go to the Contact Us page.  

There are two areas where you can access technical documents.  First, you can visit our Technical Library in the Support section of the website.  Here you will be able to access our entire catalog of documents and videos for all products – current and legacy products.  

You can also access the technical documents for each product on that product’s respective page within the website.    


Yes we do.  Check out our HA University training section to see what programs are available and sign up for any that you are interested in.  These courses are very informative and led by our expert engineers.  If you have any questions about training opportunities for yourself or your staff and would like to talk to a Honeywell representative, click here.

Check out the Product Inquiry page in the Contact Us section.  Here you’ll find sales contacts for each of our product lines and they can help you with any questions you may have from technical specifications to ordering information. 

Check out the Service & Repairs page in the Contact Us section.  Here you’ll find the contact information for our service centers in your region. 

There are several ways you can search for products on our website:

  • Click on the Products link in the main navigation to search by product lines.
  • Find products for a specific Industry or Application by clicking on the links in the main navigation bar at the top of the page.
  • Use our Gas Finder if you’re looking for a product that can detect a specific type of gas.
  • If you still can’t find the product you’re looking for, type the name of the product in the search bar at the top of the page.

Because we do not sell our products directly we cannot quote a specific price on our website.  Contact a sales representative through either the “HOW TO BUY” button on the product page or by calling them and they will be able to obtain pricing from local distributors in your area. 

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Looking For More Information?

Check out these documents. If you can't find what you're looking for here, check out our Technical Resource library.
Document
XNX Universal Transmitter - Engineering Specifications - English
XNX Universal Transmitter - Engineering Specifications - English
Language: English US
Document
XNX Foundation Fieldbus - Technical Manual - English
XNX Foundation Fieldbus - Technical Manual - English
Language: English US
Document
XNX Universal Transmitter - Safety Manual - English
XNX Universal Transmitter - Safety Manual - English
Language: English US
Document
XNX Safety User Manual
Language: English US
Certifications
MPD ATEX Certificate
Language: English US