Overview
Crowcon XgardIQ Intelligent Fixed Gas Detector | Smart Gas Detection for Flammable, Toxic & Oxygen Monitoring
The Crowcon XgardIQ Fixed Gas Detector is Crowcon's most advanced intelligent fixed gas detector and transmitter, engineered to provide continuous monitoring of flammable gases, toxic gases, oxygen (O₂), and hydrogen sulphide (H₂S) in hazardous industrial environments. Designed with a universal transmitter, hot-swappable smart sensor modules, an OLED display, and advanced diagnostics, the XgardIQ simplifies installation, commissioning, maintenance, and long-term operation while delivering exceptional reliability in safety-critical applications.
Unlike conventional fixed gas detectors that require separate transmitters for different sensor technologies, the Crowcon XgardIQ features a universal transmitter compatible with Crowcon's complete range of sensor modules. Whether your application requires electrochemical, catalytic (pellistor), or infrared (IR) sensing technology, the same transmitter can automatically recognise the installed sensor and configure itself with the correct gas type, measuring range, engineering units, and alarm settings. This intelligent Auto-Sense and Auto-Configure capability reduces installation errors, shortens commissioning time, and minimizes maintenance costs.
The XgardIQ supports monitoring of a wide variety of gases, including methane (CH₄), propane, LPG, hydrogen (H₂), carbon monoxide (CO), hydrogen sulphide (H₂S), oxygen (O₂), ammonia (NH₃), sulphur dioxide (SO₂), ozone (O₃), hydrogen fluoride (HF) and many other industrial gases depending on the installed sensor module. This versatility makes it suitable for numerous industries, including offshore oil & gas platforms, FPSOs, LNG terminals, petrochemical plants, refineries, chemical processing facilities, marine vessels, pharmaceutical manufacturing, hydrogen production plants, power stations, and wastewater treatment facilities.
One of the major advantages of the Crowcon XgardIQ is its hot-swappable sensor module design. Sensor replacement can be performed quickly without replacing the complete transmitter, significantly reducing maintenance time and lifecycle costs. Combined with intelligent bump testing, event logging, calibration reminders, and a bright OLED display, the XgardIQ provides operators with continuous visibility of detector health and gas concentration.
The detector also supports 4–20 mA analog output, RS-485 Modbus RTU as standard, and optional HART® 7 communication together with configurable alarm and fault relays. These communication options allow seamless integration into PLC, DCS, SCADA, Fire & Gas Systems, Emergency Shutdown (ESD) Systems, and industrial asset management platforms.
Built with a rugged 316 stainless steel enclosure, IP66 environmental protection, and ATEX/IECEx certification for Zone 1 and Zone 2 hazardous areas, the XgardIQ is designed to withstand harsh industrial environments while delivering dependable long-term performance. With SIL 2 functional safety certification, positive safety indication, remote sensor capability, and advanced diagnostics, the Crowcon XgardIQ provides one of the industry's most intelligent and reliable fixed gas detection solutions.
Key Features of Crowcon XgardIQ Fixed Gas Detector
The Crowcon XgardIQ combines intelligent diagnostics, universal compatibility, and robust industrial construction for reliable continuous gas monitoring.
Universal Smart Transmitter
The XgardIQ features a universal transmitter compatible with Crowcon's complete range of sensor technologies.
Benefits include:
Auto-Sense & Auto-Configure Technology
The intelligent transmitter automatically recognises the installed sensor module.
The system automatically configures:
Gas Type
Measuring Range
Engineering Units
Alarm Levels
Sensor Parameters
This significantly reduces commissioning time and configuration errors.
Hot-Swappable Smart Sensor Modules
Sensor modules can be replaced quickly without replacing the complete detector.
Advantages include:
Bright OLED Display
The high-contrast OLED display provides clear information even in low-light conditions.
Display information includes:
Gas Concentration
Gas Type
Alarm Status
Detector Health
Fault Messages
Calibration Status
Maintenance Information
Positive Safety Indicator
The unique +Ve Safety LED allows operators to confirm at a glance that the detector is operating correctly.
If any issue affects detector performance, the safety indicator changes state to alert maintenance personnel.
Non-Intrusive Calibration
The XgardIQ supports non-intrusive calibration procedures, reducing the need to open the detector enclosure.
Benefits include:
Improved safety
Reduced maintenance time
Lower operational costs
Simplified servicing
Remote Sensor Capability
The optional remote sensor allows installation of the sensing element up to approximately 15 metres away from the transmitter, improving the probability of gas leak detection in difficult-to-access locations.
Advanced Communication
The XgardIQ integrates easily into industrial automation systems.
Standard communication includes:
4–20 mA Analog Output
RS-485 Modbus RTU
Optional features include:
HART® 7 Communication
Alarm Relays
Fault Relays
Rugged Industrial Construction
The detector is designed for demanding industrial environments.
Construction features include:
316 Stainless Steel Housing
IP66 Protection
Corrosion Resistance
Hazardous Area Certification
Wide Operating Temperature Range
Long Service Life
Benefits of Crowcon XgardIQ Fixed Gas Detector
The Crowcon XgardIQ provides numerous operational and maintenance advantages.
Key Benefits
Intelligent universal transmitter
Auto-Sense technology
Auto-Configure function
Hot-swappable sensor modules
Bright OLED display
Positive Safety LED
Non-intrusive calibration
Remote sensor capability
Smart bump testing
Event logging
Low maintenance costs
Easy integration with industrial control systems
SIL 2 certified functional safety
Rugged stainless steel construction
Reliable long-term performance
Why Choose Crowcon XgardIQ?
The Crowcon XgardIQ is designed for facilities that demand intelligent diagnostics, maximum flexibility, and dependable gas detection performance. Its universal transmitter eliminates the need for multiple detector platforms, while automatic sensor recognition, smart diagnostics, and hot-swappable sensor modules simplify maintenance and reduce downtime.
Whether installed on offshore platforms, LNG terminals, hydrogen production plants, petrochemical facilities, refineries, or marine vessels, the XgardIQ delivers reliable gas monitoring with advanced communication capabilities and industry-leading safety features. Its intelligent design helps reduce total cost of ownership while improving plant safety and operational efficiency.
Working Principle
The Crowcon XgardIQ operates by combining a universal transmitter with interchangeable smart sensor modules. Depending on the installed sensor, the detector measures combustible gases, toxic gases, or oxygen concentrations using electrochemical, catalytic (pellistor), or infrared sensing technology.
The transmitter automatically identifies the connected sensor and configures itself with the appropriate operating parameters. Gas concentration is continuously displayed on the OLED screen and transmitted through 4–20 mA, Modbus RTU, and optional HART® communication to connected PLC, DCS, SCADA, or Fire & Gas systems. Built-in diagnostics, event logging, and smart bump testing continuously verify detector health to ensure reliable long-term operation.
Typical Applications
The Crowcon XgardIQ is widely used in:
Offshore Oil & Gas
Offshore Platforms
FPSOs
Drilling Rigs
Production Facilities
Compressor Stations
Marine & Shipping
Engine Rooms
Pump Rooms
Cargo Areas
LNG Carriers
Oil Tankers
Offshore Support Vessels
Petrochemical Industry
LNG & Hydrogen Facilities
LNG Terminals
LPG Storage
Hydrogen Production Plants
Hydrogen Refuelling Stations
Gas Processing Facilities
Industrial Applications
Power Generation Plants
Pharmaceutical Manufacturing
Water & Wastewater Treatment
Food & Beverage Processing
Laboratories
Manufacturing Plants
Detection Technologies
The Crowcon XgardIQ supports multiple advanced sensing technologies depending on the installed smart sensor module.
Electrochemical Sensors
Designed for toxic gases and oxygen monitoring.
Suitable gases include:
Carbon Monoxide (CO)
Hydrogen Sulphide (H₂S)
Oxygen (O₂)
Ammonia (NH₃)
Chlorine (Cl₂)
Sulphur Dioxide (SO₂)
Nitrogen Dioxide (NO₂)
Hydrogen Cyanide (HCN)
Hydrogen Fluoride (HF)
Advantages
Catalytic Bead (Pellistor) Sensors
Designed for combustible gas monitoring.
Typical gases include:
Methane (CH₄)
LPG
Propane
Butane
Hydrogen (H₂)
Natural Gas
Advantages
Proven industrial technology
Fast combustible gas detection
Reliable operation in hazardous areas
Infrared (IR) Sensors
Infrared technology provides stable monitoring of hydrocarbon gases.
Typical gases include:
Methane
Propane
Butane
LPG
LNG Vapours
Hydrocarbon Vapours
Advantages
Gas Types Detected
The Crowcon XgardIQ supports a broad range of industrial gases depending on the selected sensor.
Flammable Gases
Methane (CH₄)
LPG
Propane
Butane
Hydrogen (H₂)
Ethane
Natural Gas
Toxic Gases
Carbon Monoxide (CO)
Hydrogen Sulphide (H₂S)
Ammonia (NH₃)
Chlorine (Cl₂)
Sulphur Dioxide (SO₂)
Nitrogen Dioxide (NO₂)
Hydrogen Cyanide (HCN)
Hydrogen Fluoride (HF)
Oxygen Monitoring
Measuring Ranges
Typical measuring ranges include:
Combustible Gases
Carbon Monoxide (CO)
Hydrogen Sulphide (H₂S)
Oxygen (O₂)
Note: Available measuring ranges depend on the selected sensor module and target gas.
Universal Intelligent Transmitter
The Crowcon XgardIQ features an intelligent universal transmitter capable of supporting multiple sensor technologies without replacing the complete detector.
Intelligent Features
This significantly reduces installation complexity and maintenance time.
Hot-Swappable Sensor Module
One of the XgardIQ's key advantages is its replaceable smart sensor module.
Benefits include:
Quick sensor replacement
Reduced maintenance downtime
Lower service costs
Simplified inventory management
Minimal interruption to plant operations
Positive Safety LED
The integrated Positive Safety Indicator provides immediate visual confirmation that the detector is operating correctly.
Status indication includes:
Normal Operation
Fault Detection
Alarm Condition
Maintenance Required
This allows operators to quickly verify detector status from a distance.
Communication & Outputs
The Crowcon XgardIQ integrates seamlessly with industrial automation systems.
Standard Outputs
4–20 mA Analog Output
RS485 Modbus RTU
Optional Communication
Relay Outputs
Optional relay modules support:
Compatible Systems
The detector integrates with:
Installation Features
The XgardIQ is designed for efficient installation and servicing.
Installation features include:
Wall Mount Installation
Pipe Mount Installation
Hazardous Area Installation
Compact Universal Transmitter
Remote Sensor Option (up to approximately 15 m)
Easy Electrical Connections
Non-Intrusive Maintenance
Industries Served
The Crowcon XgardIQ is suitable for a wide range of industrial applications.
Marine Industry
Oil Tankers
LNG Carriers
Cargo Ships
Engine Rooms
Pump Rooms
Offshore Oil & Gas
Offshore Platforms
FPSOs
Drilling Rigs
Production Modules
Compressor Stations
Petrochemical Industry
Oil Refineries
Chemical Plants
Tank Farms
Solvent Storage Areas
Hydrogen Industry
LNG & LPG Facilities
LNG Terminals
LPG Storage Facilities
Cryogenic Plants
Loading Arms
Industrial Applications
Power Generation Plants
Pharmaceutical Manufacturing
Food & Beverage Processing
Water & Wastewater Treatment
Laboratories
Manufacturing Facilities
Certifications & Compliance
The Crowcon XgardIQ complies with internationally recognised industrial safety standards.
Typical certifications include:
ATEX
IECEx
CE
SIL 2 Functional Safety
These approvals make the detector suitable for hazardous industrial and offshore environments.
