Crowcon Xgard Bright

Crowcon Xgard Bright provides a unified fixed gas detection solution for flammable gases, toxic gases, oxygen, CO2 and VOCs, reducing the need for multiple detector types across a site. A broad choice of sensing technologies – including MPS™, infrared, catalytic, electrochemical and PID – allows each detector to be matched to the local gas hazard while retaining a consistent transmitter design for configuration and operation.

The next-generation MPS flammable gas sensor delivers multi-gas TrueLEL™ accuracy across a wide range of flammable gases, including hydrogen and common hydrocarbons, in a single sensing element. This provides dependable readings where gas compositions vary or are uncertain, supporting informed decisions in mixed-gas and hydrogen-related applications. Poison resistance removes a common failure mode associated with catalytic sensors, helping maintain protection in challenging environments.

Xgard Bright is engineered to minimise total cost of ownership over long service lives. The MPS sensor is maintenance-free for its operational life, requiring no routine calibration or scheduled sensor servicing. This significantly reduces calibration gas consumption, planned intervention time and the risk of unplanned downtime due to sensor drift or poisoning.

Additional long-life sensor options, including extended-life infrared and oxygen variants, further reduce the frequency of sensor replacement. Stable performance, low zero drift and good repeatability support longer calibration intervals and consistent behaviour across large installed fleets. Defined transmitter and sensor warranties underpin long-term deployment planning.

Xgard Bright is designed to cut installation effort in both new-build and retrofit projects. A 4‑wire addressable architecture enables multiple detectors to share cabling, reducing copper usage and simplifying multi-point layouts. Plug-in terminal blocks and a choice of cable gland entry sizes support different site standards and speed up panel terminations and on-site replacement.

For system integration, Xgard Bright provides a 4–20 mA output as standard, with sink or source options to suit existing control panels and distributed control systems. Native RS‑485 Modbus RTU enables addressable networking, remote configuration and centralised supervision. Optional HART 7 allows diagnostics and configuration to be accessed over existing analogue loops, supporting incremental upgrades without redesigning the wider control infrastructure.

Integrated alarm and fault relays allow direct connection to shutdown systems, beacons and other local devices, while a dedicated sounder output supports nearby audible and visual warning devices without additional interface hardware.

Crowcon Xgard Bright is designed to minimise the time personnel spend working on open equipment in classified areas. A high-contrast OLED display presents live gas levels, units and status messages clearly, even in low light or at night. Configuration, set-up, bump testing and calibration can be carried out non-intrusively from the front panel using a magnetic key, avoiding the need to open the enclosure or obtain hot-work permits under normal service conditions.

Addressable communications and remote diagnostics mean that many configuration and fault-finding tasks can be performed from safe locations, helping reduce site visits to hazardous zones. Standardised menus and operation across flammable, toxic and oxygen variants simplify training, enabling technicians to work confidently with a single detector platform.

Xgard Bright uses flameproof (Ex d) construction in a robust aluminium alloy enclosure, with an optional 316 stainless steel version for highly corrosive or offshore environments. It is suitable for both gas and dust hazardous atmospheres and for use in areas classified for flammable gases, vapours or combustible dusts. High ingress protection, further enhanced with the weatherproof cap accessory, supports operation outdoors, in washdown areas and other exposed locations.

A wide operating temperature range and tolerance to high humidity support deployment in cold climates, hot outdoor sites and damp process areas. EMC compliance supports reliable operation in electrically noisy plants, while low power consumption helps reduce overall site power requirements and simplify power supply design.

A comprehensive accessory set – including sun shields, weatherproof caps, spray deflectors, collector cones, flow adaptors and calibration adaptors – enables one detector platform to cover open-area, sheltered, ducted and sampling applications. Accessories support detection of lighter-than-air gases, protection from rain and water jets, and integration into sampling systems, reducing the need for multiple hardware variants.

Crowcon Xgard Bright is suited to fixed-point gas detection in process plants, storage facilities, energy and hydrogen projects, and other industrial environments where flammable, toxic, oxygen and CO2 hazards must be continuously controlled. It can operate as a standalone detector with local alarming or as part of wider fixed gas detection systems, including integrated Crowcon solutions, providing a scalable, future-ready platform for evolving gas safety requirements.