Arun Technology TDLA-8000 Tunable Diode Laser Absorption Spectrometer
| Brand | Arun Technology Ltd. |
|---|---|
| Origin | United Kingdom |
| Manufacturer Type | Authorized Distributor |
| Product Origin | Imported |
| Model | TDLA-8000 |
| Pricing | Available Upon Request |
Overview
The Arun Technology TDLA-8000 is a high-performance, in-situ tunable diode laser absorption spectrometer (TDLAS) engineered for continuous, real-time gas concentration monitoring in demanding industrial process environments. Unlike extractive analyzers requiring complex sample conditioning systems, the TDLA-8000 employs direct optical path measurement across the process stream—enabling robust, maintenance-free operation at elevated temperatures (up to 1800 °C), under high particulate loading (>100 g/m³), and in highly corrosive atmospheres (e.g., HCl, SO₂, NH₃-rich flue gases). Its core measurement principle relies on wavelength-modulated absorption spectroscopy (WMS) of near-infrared (NIR) or mid-infrared (MIR) semiconductor lasers, targeting fundamental rotational-vibrational transitions of target gas molecules with high spectral selectivity and minimal cross-interference. The system complies with key international performance standards referenced in IEC 62453 (fieldbus for process measurement and control), ISO 14064-1 (greenhouse gas quantification), and aligns with technical frameworks established by the Chinese National Standard GB/T 37391–2019, jointly drafted by聚光科技 (Focus Photonics) and national metrology institutes.
Key Features
- In-situ optical measurement architecture eliminates sampling lines, filters, chillers, and dilution systems—reducing calibration drift, response latency (<1 s typical T₉₀), and total cost of ownership.
- Hermetically sealed, explosion-proof (Ex d IIB T4 Gb / Ex tb IIIC T130°C Db) optical transceiver head rated for Zone 1/21 hazardous areas without purge air or pressurization.
- Integrated wavelength stabilization via internal reference gas cell (e.g., CO or H₂O vapor) and real-time laser current/temperature feedback—ensuring long-term spectral accuracy and repeatability (±0.5% FS stability over 30 days).
- Onboard diagnostics engine continuously monitors signal-to-noise ratio (SNR), beam alignment status, detector responsivity, and optical path integrity; alerts trigger configurable relay outputs or Modbus TCP events.
- Compact dual-module design: transmitter and receiver units mount directly across ducts or stacks (path lengths from 0.5 m to 30 m); modular electronics chassis supports hot-swappable power supplies and communication cards.
Sample Compatibility & Compliance
The TDLA-8000 is validated for quantitative analysis of O₂, CO, CO₂, CH₄, NH₃, HCl, HF, H₂S, SO₂, NO, NO₂, and H₂O in gas matrices containing particulates, condensables, and acid vapors. It meets material compatibility requirements per ASTM G124 (corrosion resistance of stainless steel 316L and Inconel 625 optical windows) and electromagnetic immunity per EN 61326-1:2013 (industrial environment). Full traceability is supported through NIST-traceable factory calibration certificates, and data integrity conforms to FDA 21 CFR Part 11 requirements when paired with optional audit-trail-enabled software modules.
Software & Data Management
The embedded firmware runs Arun’s proprietary TDLAS Control Suite v4.2, offering web-based configuration (HTTPS), real-time spectral visualization, and automated baseline correction algorithms. Data export supports CSV, OPC UA (IEC 62541), and Modbus RTU/TCP protocols. Optional Arun Insight™ cloud platform provides remote fleet monitoring, predictive maintenance analytics (based on optical attenuation trends), and GLP-compliant electronic lab notebook (ELN) integration with time-stamped, digitally signed measurement logs.
Applications
- Combustion optimization and emissions compliance monitoring in coal-fired, biomass, and waste-to-energy boilers (CEMS-ready per EU BREF and US EPA Method 320).
- Process gas composition control in coke oven batteries, blast furnace top gas recycling, and basic oxygen furnace off-gas treatment.
- Ammonia slip monitoring downstream of SCR/SNCR systems in power plants and nitric acid production facilities.
- Hydrogen purity verification in PEM electrolyzer exhaust streams and LNG regasification vent monitoring for methane leakage detection.
- Real-time HCl/HF concentration tracking in municipal solid waste incinerators and hazardous waste thermal treatment lines.
FAQ
Does the TDLA-8000 require periodic calibration with certified gas standards?
No—its self-referencing wavelength lock mechanism and built-in optical path validation eliminate routine span calibration; only annual verification against traceable reference cells is recommended.
Can it operate in wet or saturated gas streams?
Yes—the optical windows are heated to >150 °C and coated with hydrophobic anti-fouling layers; condensate formation on the beam path is actively suppressed.
What communication protocols are natively supported?
Modbus RTU (RS-485), Modbus TCP, and OPC UA are standard; PROFIBUS DP and Foundation Fieldbus H1 are available as field-upgradable options.
Is third-party system integration supported for DCS/SCADA platforms?
Yes—all protocol stacks include full MIB/EDD files and pre-certified drivers for Siemens PCS7, Emerson DeltaV, Honeywell Experion, and Yokogawa CENTUM VP.
How is laser safety ensured during installation and maintenance?
Class 1M laser product per IEC 60825-1:2014; interlocked access panels and automatic beam shutter activation prevent exposure during servicing.
