Hydrogen Sulfide (H₂S) Gas Analyzer
Fast, selective H₂S detection for safety, odor/emissions control, and gas quality, without routine calibration.
Why Analyze Hydrogen Sulfide (H₂S)?
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Personnel safety in hazardous areas (toxic; very low odor threshold)
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Gas quality in natural gas/biogas, upgrading, and sulfur recovery
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Corrosion control in refineries, petrochem, pulp & paper
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Wastewater and sludge handling (H₂S formation and odor)
Typical use‐cases
Oil & Gas Process Control
Real-time H₂S measurement in sour gas, amine units, and sulfur-recovery trains protects equipment from corrosion, ensures gas-quality specs, and provides fast alarms for safe, efficient operation.
Fence-line Monitoring
Continuous H₂S tracking around recovery boilers and process areas detects leaks early, verifies scrubber performance, and controls nuisance odors to protect workers and nearby communities.
Wastewater LDAR Monitoring
H₂S mapping over basins, headworks, and pump stations pinpoints hotspots, reduces exposure and odor complaints, and guides aeration or chemical dosing, using open-path or stand-off coverage where needed.
Our products
Why our products are different
Adaptive Signal Control
Real-time compensation for fluctuating transmission.
Unmatched Precision
Flexible Integration
Adaptable outputs in your preferred format, fitting into existing PC/PLC.
True Real-Time Insights
>1000 analyses per second, notifying you when conditions change.
Ultra-Low Detection Limits
Compact Form Factor
Small, lightweight design makes installation and retrofitting simple.
Instant Startup
No warm-up or stabilizing time. Start measuring within seconds.
Reliable in Harsh Conditions
Accurate measurement even at low transmission levels, down to ~1%.
Made in Sweden
Built with robust, replaceable components for long service life.
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How our technology works
1. Laser Emission
A tunable diode laser emits specific colors (wavelengths) of light that is directed through the gas sample.
2. Absorption Measurement
As the laser passes through the gas, molecules absorb some light, which is then measured and recorded.
3. Concentration Calculation
The absorption is analyzed to determine the gas concentration, providing precise, real-time measurements.
Frequently asked questions
What problems do your gas analyzers solve?
We help process and environmental teams measure critical gases in real time (e.g., CH₄, CO₂, H₂S, HF, HCl, H₂O, O₂) for safety, quality, and compliance across biogas, CCUS, battery, chemicals, and more.
How is TDLAS different from NDIR or electrochemical sensors?
TDLAS measures the unique absorption line of a gas with a laser. It’s fast, selective, stable, and needs less frequent calibration than NDIR/electrochemical cells in most tough processes.
Do you offer both in-situ and extractive measurement?
Yes. We provide line-of-sight in-situ probes for hot/wet ducts and extractive analyzers for conditioned sample lines. We help you choose based on dust load, pressure, temperature, and access.
What gases do you measure today?
Common: CH₄, CO₂, H₂S, NH₃, HF, HCl, H₂O, O₂, CO, and others on request. Please ask if your target gas isn’t listed.
How fast is the response time?
In practice, there is no T90, as our TDLAS analyzers operate in real time. For example, we deploy solutions in high-speed processes with several 100 Hz/ms. However, typical end-user requirements are often 1–2 seconds in situ and 2–5 seconds for extractive applications (application-dependent).
What accuracy and detection limits can we expect?
Process-ready accuracy (often ±1–2% of reading) and low ppm detection for many species. We’ll quote measurement range, repeatability, and LOD per application.
What does maintenance look like?
Maintenance is typically minimal. Mainly optics checks and purge air filter changes. No consumable cells. Annual verification is standard. No calibration is needed, since TDLAS is self-referencing.
Can you integrate with our DCS/PLC/PC?
Yes, please review the specific datasheet for the product you are interested in. Standard configurations are RS-485, RS-422, USB, 4-20 mA, and so on. Our solution comes complete with a servicing and commissioning software and integration-ready API. We are happy to help if you are unsure which integration method is best for you.
What certifications and ATEX/IECEx options are available?
We offer some enclosures and probes for industrial and explosive areas. Please reach out to us if you have questions regarding ATEX/IECEx, and we will do our best to assist you. We are committed to quality and are certified to ISO 9001:2015.
What are typical lead times and pricing models?
Most systems ship in 4–6 weeks, while some custom builds can take up to 12 weeks. Pricing depends on gas set, configuration, and explosive-area needs. We also offer pilot programs.
TALK TO OUR TDLAS EXPERTS
Interested in learning more?
Talk to an engineer or contact us to learn more about our products and technology, and explore how our next-generation TDLAS gas analyzers can solve your gas analysis applications.
