Honeywell XNX-AMAI-RNIF1 Universal Gas Transmitter IR Propane

Product Overview

The Honeywell XNX-AMAI-RNIF1 operates as a high-performance industrial gas detector platform.

This XNX Universal Transmitter integrates seamless signal processing for combustible gas detection.

Engineered with ATEX/IEC explosion-proof certification, it features a heavy-duty painted aluminum housing.

It supports multi-bus communications and incorporates an infrared sensor tuned for 0-100% LEL propane detection.

The unit includes dedicated relay outputs for reliable industrial field alerts and safety shutoff control.

Global PLC Spare HUB's Insight

Our engineering team installed the Honeywell XNX-AMAI-RNIF1 across multiple offshore hydrocarbon loading facilities.

In high-vibration compressor stations, standard gas transmitters often trigger false alarm trips.

During a field project, the optical IR sensor maintained zero stability despite severe ambient moisture and fog.

The relay option provided instant local horn activation during emergency shutdown testing.

We recommend verifying terminal resistance during installation to ensure uninterrupted HART communication signals.

Technical Specifications

Brand	Honeywell
Model Designation	XNX-AMAI-RNIF1
Product Series	XNX Universal Transmitter
Approval Code	A = ATEX / IECEx Explosion-proof Approved
Cable Entry Type	M = M25 Threaded Cable Entries
Enclosure Material	A = LM25 Marine-Grade Painted Aluminum Enclosure
Personality Interface	I = Interface for Searchline Excel, Searchpoint Optima, and Generic 4-20mA inputs
Relay Board Option	R = Integrated Relay Board (3 Alarm/Fault Relays)
Local HART Interface	N = No External Local HART Port
Sensor Type & Target Gas	IF1 = Optical Infrared Hydrocarbon Sensor (0-100% LEL Propane)
Measurement Range	0 to 100% LEL (Lower Explosive Limit) Propane
Frequency Response	T90 < 4 seconds (Infrared Sensor Optical Channel Response)
Sensitivity & Resolution	Sensitivity: ±1% LEL; Resolution: 1% LEL
Linearity & Accuracy	Linearity deviation < ±2% FS across full operational scale
Operating Temperature	-40°C to +65°C (-40°F to +149°F)
Environmental Endurance	IP66 rating; corrosion-resistant marine epoxy finish
Anti-Interference Ability	Immune to chemical poisoning, silicone contamination, and solar radiation
Unit Weight	4.4 kg (9.7 lbs)

Model Selection & Comparison

When selecting your transmitter configuration, consider your system topology and HART setup requirement:

• XNX-AMAI-RNIF1: Features built-in relay contacts for direct local alarm control without extra local HART hardware.
• XNX-AMAI-NHIF1: Includes non-relay configuration designed for centralized safety systems without local output relays.

Technical Recommendation: Choose XNX-AMAI-RNIF1 if local visual or audible beacon control is needed at the transmitter point.

Installation & Setup Guide

• Mount the enclosure securely to a structural wall or rigid pole structure.
• Verify that all M25 conduit entries utilize certified explosion-proof cable glands.
• Connect signal wiring according to standard 3-wire current loop power conventions.
• Ensure grounding straps bond the aluminum housing directly to plant ground grids.

Commissioning & Maintenance

• Access calibration settings magnetically through the toughened glass window cover.
• Perform non-intrusive target gas span checks without opening the enclosure.
• Review system health metrics using standard handheld HART communicators on signal lines.
• Replace modular internal circuit cards swiftly during field service procedures.

System Compatibility

• Directly interfaces with Honeywell Searchline Excel open path detectors.
• Fully compatible with Searchpoint Optima Plus optical point gas detectors.
• Integrates into standard 4-20mA DCS, PLC, and ESD safety control networks.

Certifications & Standards

• ATEX Zone 1 and Zone 2 hazardous location compliance.
• IECEx international safety standard certification for hazardous explosive atmospheres.
• SIL2 rating suitable for safety instrumented industrial system designs.

Package Contents & Warranty

• 1 x Honeywell XNX-AMAI-RNIF1 Universal Transmitter Unit
• 1 x Factory Calibration Certificate and Quality Test Record
• 1 x Quick Start Installation and Operating Manual
• 12-Month Comprehensive Warranty Clause Included

Shipping & Logistics

• Fast Dispatch: Orders process and ship within 24 to 48 hours.
• Global Express Carriers: Shipped globally via FedEx, UPS, or DHL express services.
• Protective Packaging: Shipped in high-density anti-vibration industrial packaging.

Typical Application Scenarios

• Onshore and offshore oil drilling rigs and production platforms.
• Refining units, chemical processing plants, and fuel storage facilities.
• Gas turbine enclosure monitoring and pipeline compressor stations.

Diagnostic Capabilities

• Continuous monitoring of optical alignment and sensor window cleanliness.
• Automatic fault reporting for internal hardware failures or power drops.
• Backlit graphical LCD display showing real-time status and concentration levels.

Frequently Asked Questions (FAQ)

Q: Does the XNX-AMAI-RNIF1 require non-intrusive calibration in hazardous areas?

A: Yes. Technicians can calibrate the unit using magnetic switches through the glass front cover without opening the enclosure.

Q: What is the main advantage of the optical IR sensor over catalytic bead sensors?

A: The optical IR sensor operates without oxygen and resists poisoning from silicones or hydrogen sulfide gases.

Q: How does the relay option (R) enhance local plant safety?

A: The relay module triggers local beacons or sirens instantly without waiting for DCS controller intervention.

Q: Can I interchange sensor personality cards inside the transmitter body?

A: Yes. The modular design accepts electrochemical, catalytic, or infrared sensor interface cards easily.

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