2B Technologies Model 306 Ozone Calibration Source
| Brand | 2B Technologies |
|---|---|
| Origin | USA |
| Model | 306 |
| Instrument Type | Portable |
| Ozone Concentration Range | 0 ppbv and 30–1,000 ppbv |
| Limit of Detection | 0 ppbv |
| Response Time | ≤10 s (to 95% of step change) |
| Zero Drift | ±2 ppb/24 h |
| Resolution | 1 ppb |
| Output Flow Rate | 2.5 L/min |
| NIST-Traceable Calibration | Yes |
Overview
The 2B Technologies Model 306 Ozone Calibration Source (OCS) is a portable, NIST-traceable ozone generation and delivery system engineered for high-fidelity calibration of ozone analyzers used in ambient air monitoring, research laboratories, and regulatory compliance applications. Unlike passive permeation or chemical-generation sources, the Model 306 employs a controlled ultraviolet (UV) photolysis process to generate ozone from purified ambient air—ensuring stable, repeatable output without reliance on consumables or reactive precursors. The instrument produces certified ozone concentrations across two operational modes: zero-air (0 ppbv) and adjustable span gas (30–1,000 ppbv), with output concentration digitally regulated via integrated mass flow control and real-time UV absorption feedback. Its design eliminates sensitivity to ambient temperature, pressure, and humidity fluctuations—critical for field-deployed calibration integrity under variable environmental conditions.
Key Features
- Portable, battery-operated architecture (optional AC adapter) enabling on-site calibration at remote monitoring stations or mobile laboratories.
- NIST-traceable ozone output validated annually per manufacturer’s calibration protocol; certificate of calibration included with each unit.
- Dual-mode operation: true zero-air mode (<0.1 ppbv residual ozone) and precisely tunable span mode (30–1,000 ppbv in 1 ppb increments).
- Stable output flow rate of 2.5 L/min, maintained within ±2% across operating range using integrated thermal mass flow controller.
- Response time ≤10 seconds to 95% of target concentration change—optimized for dynamic calibration sequences including multi-point linearity checks and drift verification.
- Zero drift specification of ±2 ppb over 24 hours supports extended unattended operation during routine QA/QC procedures.
- Robust aluminum enclosure rated IP54 for dust and water resistance, suitable for outdoor deployment in diverse climatic zones.
Sample Compatibility & Compliance
The Model 306 is compatible with all commercially available ozone analyzers utilizing UV photometric (254 nm), electrochemical, or chemiluminescence detection principles—including instruments compliant with U.S. EPA Reference Method EQOA-0103, EN 14625:2012, and ISO 13964:2021. Its zero-air output meets EPA requirements for zero-gas certification (≤0.5 ppbv ozone), while span outputs satisfy traceability requirements under ISO/IEC 17025:2017 for calibration laboratories. The device itself is CE-marked and conforms to IEC 61000-6-3 (EMC emissions) and IEC 61000-6-2 (immunity). All calibration data are generated in accordance with NIST SP 260-198 guidelines for gas standards, ensuring metrological equivalence across international measurement frameworks.
Software & Data Management
The Model 306 operates via intuitive front-panel interface with OLED display and tactile keypad—no external software required for basic calibration tasks. Optional USB-C connectivity enables firmware updates and configuration logging via 2B Tech’s proprietary OCS Control Utility (Windows/macOS). Logged parameters include timestamped ozone setpoint, actual output (validated by internal UV monitor), flow rate, internal temperature, and battery voltage. Audit trails support GLP/GMP-compliant recordkeeping; exported CSV files are compatible with LIMS integration and meet FDA 21 CFR Part 11 requirements when paired with validated electronic signature workflows. Internal non-volatile memory retains ≥10,000 calibration event records.
Applications
- Field calibration and performance verification of regulatory-grade ozone monitors deployed in national air quality networks (e.g., U.S. EPA AQS, EEA AirBase).
- Validation of laboratory ozone exposure chambers used in materials science testing (e.g., ASTM D1149, ISO 1431-1 for ozone cracking of elastomers).
- Controlled phytotoxicity studies requiring precise, reproducible ozone dosing profiles for plant physiology and ecosystem modeling (e.g., Free-Air Concentration Enrichment—FACE protocols).
- Method validation and inter-laboratory comparison exercises under ISO 5725-2 precision testing frameworks.
- Training and proficiency testing for environmental technicians accredited under ISO/IEC 17024.
FAQ
Is the Model 306 suitable for calibrating federal equivalent method (FEM) ozone analyzers?
Yes—the instrument meets EPA EQOA-0103 requirements for calibration source accuracy, stability, and traceability when operated within specified environmental limits (15–30 °C, <80% RH).
Does the OCS require periodic replacement of ozone-generating components?
No—ozone is generated continuously via low-pressure mercury UV lamp (254 nm) acting on purified oxygen derived from ambient air; lamp lifetime exceeds 10,000 hours with no consumables required.
Can the Model 306 be used in high-humidity environments without output degradation?
Yes—integrated air dryer and closed-loop UV feedback compensation ensure ozone concentration accuracy remains unaffected by ambient humidity up to 95% RH.
What documentation is provided to support regulatory audits?
Each unit ships with NIST-traceable calibration certificate, full technical manual, ISO/IEC 17025-compliant uncertainty budget, and firmware version log—all archived in digital format upon request.
