Infralyt N Portable Combustion Engine Exhaust Gas Analyzer

Overview

The Infralyt N Portable Combustion Engine Exhaust Gas Analyzer is an engineered solution for on-site, real-time assessment of combustion efficiency and emission compliance in diesel and gasoline engines. It operates on a dual-sensor architecture: non-dispersive infrared (NDIR) spectroscopy for high-selectivity, interference-resistant quantification of CO, CO₂, and total hydrocarbons (THC), and electrochemical cells for precise, low-cross-sensitivity measurement of NO, NO₂, and O₂. Unlike single-technology analyzers, the Infralyt N integrates both modalities within a thermally stabilized optical path and gas conditioning manifold—enabling simultaneous, time-synchronized multi-gas acquisition without external calibration gases or auxiliary dryers. Its compact, ruggedized chassis meets IP54 ingress protection and MIL-STD-810G shock/vibration specifications, supporting deployment in workshops, roadside inspection lanes, fleet maintenance depots, and field-based emissions audits.

Key Features

• Integrated NDIR optical module with dual-wavelength reference compensation, delivering stable baseline performance across ambient temperatures from −10 °C to +50 °C
• Electrochemical sensor array with factory-calibrated, temperature-compensated response curves for NO, NO₂, and O₂—each certified to ISO 12039 and EN 15058
• Onboard condensate separator with Peltier-cooled trap (−5 °C dew point) and automatic drain valve, eliminating need for external chillers or desiccant tubes
• Real-time engine parameter interface via OBD-II/SAE J1939 protocol—direct acquisition of RPM, coolant temperature, and throttle position for combustion correlation analysis
• Internal rechargeable Li-ion battery (8 h continuous operation) and 12–24 V DC vehicle power input with reverse-polarity and overvoltage protection
• Preloaded emission calculation algorithms per EU Stage V, EPA Tier 4, and China GB 17691–2018 standards—including lambda (λ), air–fuel ratio (AFR), and specific NO_x mass flow estimation

Sample Compatibility & Compliance

The Infralyt N is validated for direct sampling of raw, uncooled exhaust streams from light-duty vehicles, heavy-duty trucks, construction machinery, marine auxiliary engines, and stationary gensets. Sample gas enters through a heated stainless-steel probe (up to 600 °C tolerance) with integrated particulate filter (5 µm cut-off). All internal wetted surfaces are chemically passivated to prevent catalytic adsorption of NO and HC species. The analyzer complies with DIN EN 15058:2017 for portable exhaust gas measurement systems and supports GLP-compliant data integrity through audit-trail-enabled firmware (21 CFR Part 11 ready when paired with optional secure software license). Calibration traceability follows DKD/DAkkS-accredited procedures against NIST-traceable standard gases.

Software & Data Management

The embedded Linux-based operating system runs Infralyt Control Suite v3.2, featuring intuitive touchscreen navigation, configurable measurement templates, and automated report generation (PDF/CSV). Data logging occurs at 1 Hz resolution with timestamped metadata (GPS coordinates, operator ID, engine load state). Export options include USB mass storage, Bluetooth 5.0 (to Android/iOS tablets), and Ethernet TCP/IP for integration into centralized fleet management platforms. Firmware updates are delivered via signed OTA packages; all configuration changes and calibration events are logged with immutable timestamps and user authentication.

Applications

• Periodic technical inspections (PTI) and roadside enforcement per Directive 2014/45/EU
• Verification of diesel particulate filter (DPF) and selective catalytic reduction (SCR) system functionality during in-service conformity testing
• R&D validation of aftertreatment control strategies under transient engine cycles (e.g., WHSC, WHTC)
• Emissions benchmarking for retrofit programs targeting Euro IV/V compliance
• Training and certification of automotive technicians under ISO/IEC 17024-accredited curricula
• Baseline emissions profiling prior to ECU remapping or hardware modification

FAQ

Does the Infralyt N require external zero/span calibration gases during routine operation?
No—its NDIR subsystem uses internal reference cells and auto-zero routines triggered at user-defined intervals or startup. Electrochemical sensors are calibrated using built-in electronic span checks; full gas calibration is recommended only every 6 months or after exposure to >100 ppm NO₂.

Can the instrument measure ammonia (NH₃) slip from SCR systems?
Not natively—the current configuration does not include an NH₃ sensor. However, the modular design allows future field upgrade via optional tunable diode laser (TDLAS) add-on module (part no. INFRALYT-N-NH3).

Is the device suitable for measuring exhaust from two-stroke marine engines?
Yes—its wide dynamic range (CO: 0–10,000 ppm; NO: 0–5,000 ppm) and robust particulate handling accommodate high-soot, high-moisture exhaust typical of legacy marine applications.

How is data security ensured during wireless transmission?
Bluetooth pairing requires AES-128 encryption and manual PIN confirmation; all exported CSV files contain SHA-256 checksums for integrity verification.

What is the warranty coverage and service support structure?
Standard 24-month return-to-depot warranty; extended service plans include annual on-site verification, sensor replacement kits, and remote diagnostics via secure VPN tunnel.