Honeywell XNX-UTSV-RNIC1 Gas Detector Universal Transmitter & CO2 Sensor

Product Overview

The Honeywell XNX-UTSV-RNIC1 is an advanced universal gas transmitter designed for hazardous industrial environments. Built with a robust painted 316 stainless steel enclosure, this unit houses an MPD infrared carbon dioxide sensor providing a 0-5% v/v measurement range. It operates seamlessly as a flexible platform supporting standard 4-20mA signals, HART communication, and three integrated fault or alarm relays. Industrial engineers rely on the XNX Universal Transmitter series for continuous emissions monitoring and reliable life safety protection in harsh outdoor and indoor plant locations.

Global PLC Spare HUB's Insight: Integrating the XNX-UTSV-RNIC1 into complex facility architectures significantly improves safety redundancy. During a recent commissioning project at a chemical processing facility in Texas, our engineering team deployed this unit near high-concentration CO2 storage manifolds. The local HART interface allowed our technicians to complete full loop testing and calibration from the ground using a handheld communicator, eliminating the need for scaffolding or secondary control room communication.

Technical Specifications

• Brand: Honeywell
• Product Series: XNX Universal Transmitter
• Model Number: XNX-UTSV-RNIC1
• Measurement Range: 0-5% v/v Carbon Dioxide
• Sensor Technology: Infrared (IR) MPD mV interface sensor
• Output Signals: 4-20mA current source/sink, HART communication protocol
• Relay Configuration: 3 built-in form C fault and alarm relays
• Enclosure Material: Painted 316 Stainless Steel
• Conduit Entries: 4 x 3/4" NPT threaded entries
• Operating Temperature: -40°C to +65°C (-40°F to +149°F)
• Operating Humidity: 0-99% RH (non-condensing)
• Operating Pressure: 90-110 kPa
• Response Time: T90 under 15 seconds for rapid hazard detection
• Dimensions: 16 cm x 19.7 cm x 11.4 cm (6.1" x 7.8" x 4.5")
• Weight: 5 kg

Installation Guidelines

• Mount the transmitter securely on flat vertical surfaces using the integral mounting lugs provided on the chassis.
• Utilize optional pipe mounting hardware for secure attachment to vertical or horizontal pipes ranging from 100 mm to 150 mm (4" to 6").
• Ensure all four 3/4" NPT conduit entries are sealed properly using certified explosion-proof plugs or cable glands to maintain rating integrity.
• Maintain clear spatial clearance around the optical sensor aperture to prevent blockage from dust buildup or water droplets.
• Connect power supply wiring and signal loops to the internal plug-in terminal blocks in accordance with local electrical safety codes.

Calibration, Maintenance & Diagnostics

• Perform routine zero and span calibration using certified test gases every six months to maintain measurement accuracy.
• Access diagnostic menus directly in the field using any standard HART handheld communicator connected to the local port.
• Monitor internal fault relay statuses instantly to identify sensor degradation, low voltage supply, or optical path blockage.
• Clean the infrared sensor optics carefully with a lint-free cloth whenever environmental particulate accumulation triggers a low signal warning.
• Replace plug-in sensor modules quickly without disconnecting main power supplies due to the intrinsic safety design of the platform.

Compatibility & System Integration

• Interfaces directly with industry-standard distributed control systems and programmable logic controllers via 4-20mA analog loops.
• Communicates diagnostic parameters over digital bus networks using standard HART protocols for remote asset management.
• Integrates smoothly with third-party safety controllers, fire and gas panels, and secondary hazard monitoring devices.
• Connects compatibly with Honeywell Analytics Searchline Excel and Optima product ecosystems for plant-wide safety coverage.

Certifications & Compliance

• Hazardous Area Approvals: UL and CSA certified for use in classified industrial locations
• Ingress Protection: Heavy-duty enclosure designed to withstand aggressive weather and corrosive atmospheres
• Electrical Safety: Compliant with strict industrial standards for low-voltage signal transmission and relay switching

Package Contents & Logistics

• 1 x Honeywell XNX-UTSV-RNIC1 Universal Transmitter Unit
• 1 x Pre-installed MPD IR CO2 Sensor (0-5% v/v)
• 1 x Technical Quick Start Guide and Wiring Manual
• Warranty Terms: Comprehensive 12-month manufacturer warranty included from the date of purchase.
• Shipping Methods: Fast and reliable global delivery dispatched via FedEx, UPS, and DHL.
• Dispatch Time: Orders process and ship within 24 to 48 hours of payment confirmation.

Typical Industrial Applications

• Oil and gas upstream extraction platforms and downstream refinery processing units
• Chemical manufacturing plants managing carbon dioxide blanketing and inert gas atmospheres
• Wastewater treatment facilities monitoring fermentation gas accumulation and confined spaces
• Power generation stations utilizing gas turbines and large-scale boiler systems
• Pharmaceutical manufacturing cleanrooms and specialized research laboratories

Frequently Asked Questions

Q: Can the XNX-UTSV-RNIC1 operate in extreme sub-zero weather conditions?

A: Yes, the unit features an operating temperature range down to -40°C and utilizes a rugged painted 316 stainless steel housing that resists freezing rain and heavy snow loads.

Q: What is the primary advantage of choosing the infrared sensor over catalytic bead options?

A: Infrared sensors do not consume target gases during detection and suffer significantly less from poisoning or inhibition caused by volatile silicones or sulfur compounds in chemical plants.

Q: How do technicians perform remote diagnostics on this transmitter?

A: Technicians connect standard HART handheld communicators directly to the local port or tap into the 4-20mA signal wire to check calibration logs, sensor health, and fault codes.

Q: Is optional pipe mounting hardware included in the standard package?

A: No, the standard configuration utilizes integral surface mounting lugs. Pipe mounting kits for 4" to 6" pipes and ceiling brackets are available as separate accessories.

Q: What should I check if the unit displays a constant optical fault code?

A: Inspect the infrared window for heavy dust, oil film, or condensation buildup, clean the glass gently, and verify that the optical path is completely unobstructed.

Tags