HORIBA PG-300 Series Portable Flue Gas Analyzer

Overview

The HORIBA PG-300 Series Portable Flue Gas Analyzer is an engineered field-deployable solution for high-fidelity, multi-component flue gas measurement in compliance with international environmental monitoring standards. Designed for regulatory-grade accuracy and operational robustness, the PG-300 employs a combination of proven optical and electrochemical detection principles: alternating flow modulation chemiluminescence (AFM-CLD) for NO_x; alternating flow modulation non-dispersive infrared (AFM-NDIR) for SO₂, CO, and CH₄; conventional non-dispersive infrared (NDIR) for CO₂; and galvanic cell technology for O₂. This hybrid sensor architecture ensures minimal cross-sensitivity, stable baseline performance, and trace-level detection capability across dynamic combustion environments — from industrial boiler stacks to mobile emissions testing platforms. Unlike benchtop analyzers requiring controlled lab conditions, the PG-300 delivers laboratory-equivalent precision (<2.0% F.S. accuracy) under real-world field constraints, including variable ambient temperature (5–40 °C), high humidity (≤85% RH), and mechanical vibration.

Key Features

• Modular multi-gas configuration supporting simultaneous quantification of NO_x, SO₂, CO, CO₂, O₂, and optionally CH₄ — configurable per application requirements (e.g., PG-350: 5-channel; PG-337: 3-channel)
• Optimized thermal and mechanical design: 20% weight reduction vs. predecessor models (14 kg total); shock- and vibration-resistant chassis validated for transport and on-site deployment
• Intuitive 7-inch color TFT-LCD touchscreen with graphical trend display, step-by-step on-screen guidance, and contextual help menus — eliminating reliance on external documentation during field operation
• Integrated electronic condensate management: automatic/manual drainage and Peltier-cooled dew point control ensure consistent sample conditioning without external chillers or manual intervention
• Full-system calibration capability — including pre-analyzer sampling probe, heated line, and analyzer core — traceable to NIST-certified reference gases and aligned with ISO 12039, EN 15267, and US EPA Method 6C/7E protocols
• Preheat time reduced to 30 minutes; T₉₀ response ≤45 s for most gases (SO₂: ≤180 s), enabling rapid turnaround during sequential stack surveys
• Dual data output architecture: isolated 4–20 mA analog channels (per gas) plus Ethernet interface compliant with Modbus TCP and HTTP-based API for integration into SCADA, CEMS redundancy systems, or cloud-based QA/QC dashboards

Sample Compatibility & Compliance

The PG-300 is validated for direct sampling of hot, humid, and particulate-laden flue gases up to 200 °C (with optional high-temp probe). Its internal heated sampling path (maintained at >180 °C) prevents condensation-induced bias and sulfate deposition in SO₂ measurement. All gas-specific optical paths are sealed and pressure-compensated to minimize drift under fluctuating stack backpressure. The instrument meets or exceeds certification requirements for regulatory enforcement use, including TÜV Rheinland Type Approval (EU Directive 2010/75/EU), MCERTS (UK Environment Agency), GOST R IEC 61508 (Russia), ETV verification (US EPA), China’s JJG 968–2019 metrological verification regulation, Korea’s KOLAS ILAC accreditation, and Japan’s JIS B 7982 and JCSS traceability framework. It supports GLP-compliant audit trails via timestamped SD card logging (user-configurable intervals) and full calibration history retention — essential for FDA 21 CFR Part 11–aligned quality systems.

Software & Data Management

Data acquisition and system diagnostics are managed through HORIBA’s proprietary PG-Manager software suite, compatible with Windows OS and accessible via Ethernet or USB. The software enables remote configuration of measurement parameters (e.g., range switching, alarm thresholds, auto-zero cycles), real-time visualization of concentration trends with overlay comparison against reference standards, and automated generation of PDF-formatted compliance reports per ISO 14064 or EN 14181 QA/QC requirements. All raw sensor outputs, calibration events, diagnostic flags (e.g., low flow, high dew point, optical misalignment), and user actions are logged with cryptographic timestamps to support forensic root-cause analysis. SD card exports include CSV-compatible datasets with metadata headers (gas name, unit, range, serial number, operator ID, GPS coordinates if equipped), facilitating third-party statistical process control (SPC) or machine learning–based emission anomaly detection.

Applications

• CEMS backup verification and periodic stack testing per EN 14181 QAL2/QAL3 protocols
• Combustion optimization studies in utility boilers, cement kilns, and waste-to-energy incinerators
• Catalyst efficiency evaluation in SCR/SNCR de-NO_x and FGD desulfurization systems
• Mobile source emissions auditing for marine engines, locomotives, and heavy-duty diesel generators
• Fuel cell exhaust characterization (H₂ crossover impact on O₂/CO readings)
• Academic research in atmospheric chemistry, carbon capture pilot plants, and methane leakage detection in natural gas infrastructure
• Third-party environmental testing laboratories requiring accredited field instrumentation for ISO/IEC 17025 scope expansion

FAQ

What gas species can the PG-300 measure simultaneously?
The base configuration measures NO_x, SO₂, CO, CO₂, and O₂ concurrently. Methane (CH₄) is available as an optional sixth channel.
Is the PG-300 suitable for high-moisture flue gas sampling?
Yes — its integrated Peltier-cooled condensate trap and heated sample line (180 °C) maintain sample integrity across dew points up to 90 °C, preventing water interference in IR absorption measurements.
How is calibration traceability maintained in the field?
The system supports full-path calibration using certified span gases; all calibrations are digitally signed, time-stamped, and stored on SD card with operator ID and gas certificate numbers — meeting ISO/IEC 17025 documentation requirements.
Does the PG-300 comply with US EPA Methods?
It satisfies performance criteria for EPA Methods 6C (SO₂), 7E (NO_x), 10 (O₂), and 3A (CO₂); formal Method 301 validation data packages are available upon request.
Can data be exported for integration into enterprise LIMS or cloud platforms?
Yes — via Ethernet using Modbus TCP or RESTful API; CSV exports from SD card include ISO 8601 timestamps, units, and metadata fields required for automated ingestion into LabVantage, Thermo Fisher SampleManager, or AWS IoT Core.