Continuous Gas Analysis for Industry & Environment
Measure reliably around the clock: Our gas analyzers are designed for continuous 24/7 operation – with automatic zero-point correction and cloud monitoring.
24/7 Gas Analysis without Interruption
Continuous gas analysis means measurement data is captured around the clock without interruption – 24 hours a day, 7 days a week, 365 days a year. In emission monitoring, this seamlessness is legally required; in process control, it ensures product quality and plant safety; and in the biogas sector, it prevents costly failures during grid feed-in. Fresenius Instruments has consistently designed all analyzers for continuous operation.
The biggest challenge in continuous gas analysis is calibration interruptions: conventional systems regularly require expensive test gas to verify their zero point and sensitivity values – each calibration means a measurement gap. The patented automatic zero-point correction from Fresenius operates entirely without test gas. The analyzer corrects itself during ongoing operation, so measurement data acquisition is never interrupted and the costs for calibration gases are eliminated.
Self-diagnostic functions in all GA series devices, the BioBasic and the FTC300 detect deviations in sensor performance, gas flow or temperature at an early stage and report them automatically. The Cloud Connect Kit transmits this status data together with measurement values via mobile network in real time to a central monitoring platform. For critical events – such as exceeding an emission limit or a sensor defect – the operator is notified immediately.
Through the combination of automatic calibration, self-diagnostics and remote monitoring, Fresenius analyzers are ideally suited for unattended continuous operation. This is particularly relevant for biogas plants at remote locations, decentralized CEMS measurement points or processes in enclosed safety areas. The device lifespan of over 30 years and 10+ years spare parts guarantee underscore the long-term reliability Made in Germany.
From Process to Analysis – How Gas Measurement Works
Our Products
Biogas BioBasic
Plug-and-play biogas analyzer for CH₄, CO₂, H₂S, O₂ and H₂
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TDLAS Biomethane TDLAS
TDLAS laser analyzer for high-precision biomethane quality control
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Solvents Gas Analyzer 150
Precise NDIR measurement of hazardous solvents in industrial environments
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Flexible Gas Analyzer 210
Flexible gas analyzer with NDIR, EC and ZrO₂ sensors
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Biomethane Gas Analyzer 210 - Biomethane
Optimized for biomethane feed-in monitoring in biogas plants
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O₂ Gas Analyzer 210 O2 paramagnetic
Paramagnetic O₂ analyzer for precise oxygen measurements
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Versatile Gas Analyzer 220
Versatile gas analyzer for emission and process monitoring
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Formaldehyde Gas Analyzer 315 Formaldehyde
Specialized NDIR analyzer for precise formaldehyde measurement
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Multi-gas Gas Analyzer 320
Multi-gas analyzer for up to 6 IR-active gases in industrial processes
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Portable Gas Analyzer Portable 100
Portable gas analyzer for on-site mobile measurements
Learn more →Our Service Advantages
Why Fresenius Instruments is your partner for continuous gas analysis for industry & environment – with over 175 years of experience in analytical chemistry.
Fast Response Times
Our service technicians are with you on average within 24–48 hours. Minimal waiting times and efficient processes ensure rapid restoration of your operations.
Dedicated Contact Person
With us, you always have a dedicated contact who knows your system in detail. No changing contacts, but continuous support for optimal results.
Worldwide Field Service
Service deployments throughout Europe – from Scandinavia to the Mediterranean. Our technicians are thoroughly familiar with regional requirements and regulations.
Experienced Technicians
Years of expertise in gas measurement technology and regular further training guarantee the highest service quality. Our technicians reliably solve even complex problems.
Over 120 Measurable Substances
From standard gases to exotic compounds – our analyzers cover a wide spectrum.
Remote Diagnostics with Cloud Connect Kit
Our Cloud Connect Kit enables remote monitoring of your devices via mobile network. Faults are automatically detected and reported – for fast diagnosis and minimal downtime.
Premium Components & Spare Parts Supply
We rely on premium components from primarily German suppliers – for a lifespan of over 30 years and guaranteed spare parts supply for more than a decade.
Longevity & Accuracy
Through regular maintenance and calibration, your devices maintain their precision for decades. Measurement accuracy meeting the highest industry standards.
Spare Parts 10+ Years
Long-term supply security with guaranteed spare parts supply for over 10 years. No production downtime due to missing spare parts.
Lifespan 30+ Years
Significant extension of device lifespan through regular professional maintenance. Investment protection and lower total cost of ownership over the entire lifecycle.
Customer Reviews
“The Cloud Connect Kit has significantly reduced our downtime. Remote diagnostics works flawlessly.”
Frequently Asked Questions
Thanks to automatic zero-point correction without test gas, our analyzers run maintenance-free for extended periods. Regular checks are recommended but not required for operation.
The Cloud Connect Kit automatically detects faults and notifies you immediately. Many problems can be diagnosed remotely before a technician is dispatched.
Yes, our analyzers are optimized for unattended continuous operation – with automatic calibration, self-diagnostics and remote monitoring.
Chat with Tory – Your Personal Product Advisor
Our AI Tory advises you on our analyzers, gas coolers, and sampling systems. Ask questions about products, applications, and receive a non-binding quote – around the clock.
Simply click on the chat in the bottom right corner of the screen.
Request Consultation Now
Contact us for individual consultation about our products. Our experts will help you find the optimal solution for your application.
About Fresenius Instruments
Fresenius Instruments combines over 175 years of expertise in chemical analytics. As a specialist in the continuous measurement and analysis of more than 120 substances, we rely on proven methods such as NDIR, EC, NDUV, zirconium oxide, TLDAS, and Raman laser spectroscopy for extractive process measurement. Our origins lie in the historic Institut Fresenius, founded by Carl Remigius Fresenius, a pioneer whose innovations have shaped the field of chemical analytics for over 175 years.
