Loobo LB-2 Flue Gas and Particulate Sampler Compliant with GB/T 16157–1996

Overview

The Loobo LB-2 Flue Gas and Particulate Sampler is an engineered field instrument designed for compliant, high-reliability sampling of gaseous pollutants and suspended particulates from industrial exhaust stacks and ducts. It operates on the principle of solution absorption—where target analytes (e.g., SO₂, NOₓ, HCl, NH₃) are quantitatively captured in pre-selected absorbent solutions—and integrates real-time thermobarometric compensation to compute standardized volumetric flow (at 273.15 K and 101.325 kPa). Its architecture adheres strictly to the metrological and procedural requirements defined in GB/T 16157–1996 (“Methods for Determination of Particulates and Gaseous Pollutants in Exhaust Gas from Stationary Sources”) and HJ/T 47–1999 (“Technical Specifications for Flue Gas Samplers”), making it suitable for regulatory monitoring programs conducted under Chinese environmental supervision frameworks.

Key Features

• Precision-engineered constant-flow control using imported high-stability electronic mass flow sensors with integrated particulate filtration—eliminating positional dependency and drift associated with mechanical rotameters.
• Brushless DC rotary vane pump with stainless-steel housing, self-lubricating design, and >10,000 h MTBF; delivers stable negative pressure across the full flow range (0.5–2.0 L/min) with minimal thermal load.
• Integrated pre-flow temperature and pressure transducers (±1.5 °C and ±2.5 kPa accuracy), enabling automatic calculation and display of both actual and standard-condition sampled volumes.
• Heated sampling probe with digital temperature readout and titanium sintered filter core—prevents condensation-induced analyte loss and ensures particulate retention integrity during high-moisture sampling.
• Tri-functional drying tube combining desiccant media, fine particulate filtration, and anti-suction backflow protection—reducing maintenance frequency and preserving flow linearity over extended deployments.
• Wide-temperature OLED display with Chinese-language GUI, supporting low-light and sub-zero ambient operation; intuitive menu navigation with password-protected calibration access.
• Multi-mode sampling logic: timed, interval, cyclic, and multi-segment protocols—programmable via front-panel keypad with persistent memory for repeat-use configurations.
• Rechargeable internal battery backup with power-fail detection and auto-resume functionality; automatically compensates for interruption time and preserves all logged parameters during AC dropout.
• Ergonomic tripod-mounted design with color-coded gas pathways and left/right dual-bottle configuration—minimizing connection errors and enhancing field operational safety.

Sample Compatibility & Compliance

The LB-2 is validated for use with aqueous absorbent media (e.g., hydrogen peroxide–potassium hydroxide for SO₂, sodium hydroxide for acidic gases) and compatible with standard 25–50 mL impingers or bubblers per GB/T 16157–1996. Its flow control system meets ISO 5800:2021 (accuracy verification of gas meters) traceability benchmarks when calibrated against NIST-traceable primary standards. While primarily deployed in domestic regulatory contexts, its thermobarometric compensation algorithm aligns with internationally recognized reference conditions (ISO 10780, EN 13284-1), facilitating data comparability in cross-border emissions reporting. The instrument’s firmware supports audit-ready logging—including timestamps, flow deviations, and fault codes—consistent with GLP-aligned data integrity practices.

Software & Data Management

All operational parameters—including flow rate, pre-meter temperature/pressure, atmospheric pressure, sampling duration, and cumulative volume—are stored locally in non-volatile memory (1000 record capacity). Data export is performed via USB interface using vendor-provided PC software that generates CSV-formatted reports compliant with Chinese EPA format templates. The system enforces user-level access control: basic operation requires no credentials, while sensor calibration, zero-point adjustment, and clock synchronization require administrator password authentication—ensuring data provenance and preventing unauthorized parameter modification. No cloud connectivity or remote telemetry is implemented, preserving data sovereignty in offline field environments.

Applications

• Regulatory stack testing for thermal power plants, cement kilns, steel furnaces, and waste incinerators under China’s “Blue Sky Defense Campaign” enforcement protocols.
• Occupational hygiene assessments in boiler rooms and process ducts where exposure to CO, NO₂, or volatile organic compounds must be quantified per GBZ 159–2004.
• Method validation studies requiring gravimetric particulate collection alongside simultaneous gaseous pollutant capture.
• Pre-compliance screening prior to formal CEMS (Continuous Emission Monitoring Systems) installation, especially where cost-effective spot-check capability is needed.
• Academic and research field campaigns evaluating emission factors across variable load conditions in small-to-medium industrial facilities.

FAQ

Does the LB-2 comply with international standards such as ISO or ASTM?
The LB-2 is certified to GB/T 16157–1996 and HJ/T 47–1999. Its measurement methodology and compensation algorithms are functionally aligned with ISO 10780 and EN 13284-1 principles, though formal ISO/IEC 17025 accreditation applies only to the calibration laboratory—not the instrument itself.
Can the LB-2 be used for particulate-only sampling without gaseous absorption?
Yes—by configuring the system with a glass fiber filter holder and omitting absorbent solutions, it functions as a gravimetric particulate sampler per GB/T 16157–1996 Annex A.
What is the maximum allowable moisture content in flue gas for reliable operation?
The heated probe (up to 180 °C) and integrated drying tube enable stable operation at dew points up to 90 °C; however, sustained condensation inside the main flow path is prevented only when probe temperature exceeds flue gas dew point by ≥20 °C.
Is firmware update support available after purchase?
Loobo provides periodic firmware updates via USB download; version history and release notes are published on the official technical support portal, accessible to registered end-users.
How is calibration traceability maintained?
Each unit ships with a factory calibration certificate referencing internal standards traceable to CNAS-accredited laboratories; users are advised to perform annual field verification using a primary calibrator meeting JJG 956–2018 requirements.