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CONTENTS Fresenius Umwelttechnik Service Our Technology Process Measurement Technology Stationary Single and Multi Gas Analysers Hot Gas Formaldehyde LEL Monitoring Mercury Oxygen Hydrogen VOCs Complete Systems Renewable Energy Biogas Biomethane Hydrogen Sulphite Refrigerator Recycling Solvents Cement Industry Medicine & Pharmaceuticals Gas Coolers Portable Gas Sampling Systems Accessories Substance List

FRESENIUS UMWELTTECHNIK Innovation is our tradition Fresenius Umwelttechnik GmbH is looking back on a long-standing company history. The foundation for the sales and distribution of measurement technology was laid as early as in 1992 when the company was founded. Since many different industrial sectors show an ever-increasing interest in special online analytics, Fresenius Umwelttechnik decided to expand its focus to a significant extent. Providing many different customers from the industrial sector and other branches with process analytics, Fresenius Umwelttechnik has become one the major manufacturers...

GENERAL INFORMATION 175 YEARS OF TRADITION More than 170 years of company history have turned Fresenius into one of Germany's leading group of companies when it comes to chemical, biological and physical analytics and consultancy services. 1848 Carl Remigius Fresenius establishes the “Chemisches Laboratorium Fresenius” (Fresenius Chemical Laboratory) in Wiesbaden 1960 Institut Fresenius becomes a market leader in the area of product and environmental analytics 1989 Beginning of the establishment of a network of partner companies and partner universities both in Germany and abroad; development...

We take care of you! We see ourselves as your competent service provider: from simple measurement system services to complex service concepts for your entire application. With regular maintenance and corresponding checks, you will increase your measuring device's availability to a significant extent. What is more, the resulting cost savings will take the pressure off your maintenance budget. Our services are available for both our own measurement systems and third-party analysers. On-site-service It is up to you whether you choose our mobile on-site services or our central workshop to which you...

GENERAL INFORMATION OUR SERVICES AT A GLANCE REPAIRS There is no need to worry about unnecessary system downtimes. we will arrive at your premises in no time and fix any problem your measuring devices might have. SPARE PARTS SERVICE We always have both our own and thirdparty accessories in stock. Spare parts can thus be delivered within a very short time. LOANER & RENTAL DEVICES Loaner and rental devices are available at all times! If you need a measuring device for only a short time or a replacement in exchange for your old device, we will be happy to provide you with a corresponding rental...

OUR TECHNOLOGY NDIR Measuring Principle A discontinuous broadband IR signal is required to perform the measurement. It is possible to use either a pulsed or a continuous IR emitter whose radiation is time-modulated by an aperture wheel. In certain frequency ranges, a physical interaction between the incoming radiation and the molecules of the target substance occurs within the measuring cell, which results in the absorption of the radiation energy (absorptive -> non-dispersive, abbreviated: ND). The position and width of the frequency ranges are characteristic of the respective substance. Different...

GENERAL INFORMATION Fresenius Patent – Automatic Zero Adjustment The essential difference between well-known procedures and our patent is that the reference measurement of both the zero and the end point is not carried out using pure gases or a gas with a known concentration of the target substance, but that the gas to be analysed itself is used for the reference measurement at another known pressure: The sample gas to be analysed is first measured at normal pressure (ambient pressure) and then at a second constant negative pressure resulting from the creation of a vacuum in the measuring cell....

PROCESS MEASUREMENT TECHNOLOGY We are a leading manufacturer of gas analysers and gas analysis systems Whether you need an individual device or a complete system, our solutions for gas measurement technology are based on our comprehensive experience in the areas of process measurement technology and chemical substances. All analysers and systems are developed, tested and manufactured in-house, while our laboratory takes care of the calibration. Our devices are tailor-made to fit the requirements of any sector. we focus on quick readiness for operation and user-friendly operating concepts. Be...

PROCESS MEASURING DEVICES STATIONARY SINGLE & MULTI GAS ANALYSERS For stable and efficient online measurements in all kinds of processes • For up to 3 IR components • Possibility to include crosssensitivity compensation • with internal stainless steel sintered filter • Plain text display • Automatic zero adjustment • Built-in sample gas pump • Possibility to include an automatic calibration mode • Possibility to combine different measuring ranges per substance (e.g. 0–10 vol % / 50–100 vol %) • No sample gases required during operation – no running costs • Automatic switchover between the measuring...

Stationary hot gas measurement system Loss-free measurements of highly water-soluble sample gas components (such as ammoniac and formaldehyde) with high dew points and/or high sample gas temperatures are guaranteed with our GA 315. In case of sample gases with high moisture content, it is usually required to use a sample gas cooler – if necessary also in combination with a condensate trap – in order to avoid condensation in the sensitive measuring cells. Water-soluble components may cause washout effects, which in turn lead to an undervaluation of the measured values. Complex recovery and reproducibility...