Multi Gas Clip by BW Technologies

Overview

The Multi Gas Clip by BW Technologies is a compact, intrinsically safe personal gas monitor engineered for continuous, reliable detection of multiple hazardous gases in demanding industrial and confined-space environments. Unlike conventional catalytic bead (pellistor) or electrochemical sensors, this device integrates an infrared (IR) lower explosive limit (LEL) sensor—enabling accurate hydrocarbon gas measurement even in oxygen-deficient atmospheres where traditional LEL sensors fail. Designed for long-duration deployment, the instrument operates up to two months on a single rechargeable lithium-ion battery, minimizing downtime and logistical overhead associated with frequent calibration or battery replacement. Its robust, IP67-rated housing meets international safety standards for use in potentially explosive atmospheres, including oil & gas facilities, wastewater treatment plants, chemical storage areas, and utility tunnels.

Key Features

• Infrared (IR) LEL sensor technology—ensures stable, drift-resistant detection of combustible gases (e.g., methane, propane, butane) without reliance on ambient oxygen concentration
• Simultaneous monitoring of up to four gases: standard configuration includes O₂, H₂S, CO, and IR-based LEL; customizable sensor combinations available per application requirements
• Ultra-compact form factor (110 × 60 × 30 mm) and lightweight design (<180 g) for unobtrusive clip-on wear on clothing or harnesses
• Intuitive single-button interface with visual (LED), audible (95 dB), and vibratory alarms—optimized for noisy or visually impaired working conditions
• Auto-zero and automatic background correction algorithms maintain baseline accuracy across temperature and humidity variations (operating range: −20 °C to +50 °C)
• Field-replaceable sensors and modular battery—reducing lifecycle maintenance cost and enabling rapid return-to-service after service events
• Comprehensive data logging: stores >10,000 timestamped readings with event-triggered capture (alarm, bump test, calibration)

Sample Compatibility & Compliance

The Multi Gas Clip is validated for real-time detection of common toxic and combustible gases encountered in occupational health and safety applications. It complies with global regulatory frameworks governing portable gas detection, including CSA C22.2 No. 152, UL 2075, EN 45544-1/-2, and IEC 61508 (SIL 2 capable). All units undergo 100% functional testing at the Canadian manufacturing facility—including full-range gas exposure verification, alarm threshold validation, and environmental stress screening (thermal cycling, drop impact, ingress protection). The IR LEL module conforms to IEC 60079-29-1 for performance in inert or hypoxic atmospheres, supporting compliance with OSHA 1910.146 (Confined Space Entry) and NFPA 805 protocols.

Software & Data Management

Data retrieval and instrument management are supported via BW’s proprietary Docking Station and GasAlertMicroSoft software. The docking system enables automated bump testing, calibration, firmware updates, and secure data download—generating audit-ready reports compliant with ISO 45001 and FDA 21 CFR Part 11 requirements (when configured with user authentication and electronic signature). Logged data exports to CSV or XML formats integrate seamlessly with enterprise EHS platforms (e.g., Intelex, Sphera, ETQ Reliance). Optional Bluetooth-enabled mobile app (GasAlertLink) provides real-time remote monitoring and configurable alert notifications for supervisors overseeing distributed field teams.

Applications

• Confined space entry monitoring—especially in nitrogen-purged vessels, biogas digesters, or inerted storage tanks where oxygen levels fall below 19.5%
• Offshore platform perimeter monitoring and maintenance crew personal protection
• Municipal infrastructure inspection (sewers, manholes, pump stations) with high H₂S and CH₄ risk profiles
• Chemical handling and transfer operations requiring simultaneous CO, H₂S, and LEL surveillance
• Emergency response scenarios where rapid deployment and extended runtime reduce logistical dependencies on external power or spare batteries

FAQ

Does the Multi Gas Clip require oxygen to detect combustible gases?
No—the integrated infrared LEL sensor functions independently of ambient oxygen concentration, making it suitable for inerted or hypoxic environments.
How often does the instrument require calibration?
BW recommends daily bump testing and full calibration every 180 days under normal operating conditions; frequency may increase in extreme contamination or temperature cycling scenarios.
Can sensor modules be swapped in the field?
Yes—sensor cartridges are hot-swappable without tools, and the device automatically recognizes new configurations upon insertion.
Is the data log exportable for regulatory reporting?
Yes—via USB or Bluetooth, with time-stamped, tamper-evident records compatible with GLP/GMP documentation workflows.
What certifications apply to international deployment?
The unit carries ATEX II 1G Ex ia IIC T4 Ga, IECEx Ex ia IIC T4 Ga, and UKCA markings—validating conformity for use across EU, UK, and APAC markets.