Develops and manufactures gas analysis devices and process measurement technology for industry, environmental technology and the energy sector.
Fresenius Umwelttechnik GmbH
Herten (Headquarters, Development & Production)New on Amplifa
About Fresenius Umwelttechnik
Fresenius Umwelttechnik is a mid-sized manufacturer of gas analysis devices and process measurement technology based in Herten in the Ruhr region. For more than 30 years the company has been developing and manufacturing extractive and InSitu gas analyzers for continuous gas measurement in process gases, room air monitoring and LEL (UEG) monitoring, including multi-gas analyzers based on NDIR, NDUV, paramagnetic O₂ measurement, electrochemical cells, TDLAS laser and ZrO₂ measurement technology. The portfolio covers more than 120 measurable gases, complemented by gas coolers for sample gas conditioning, floating hoods for off-gas emission measurements and telemetry solutions for cloud connectivity. Fields of application include biogas and biomethane plants, wastewater treatment plants, recycling, plant engineering, chemicals, medical and pharmaceutical technology as well as laboratories. All devices are developed and manufactured in Germany; a worldwide service network provides maintenance, repair, calibration and spare parts – also for devices from other manufacturers.
- Site
- Herten
- Processes
- NDIR gas analysis (non-dispersive infrared absorption), NDUV gas analysis (non-dispersive ultraviolet absorption), Paramagnetic O₂ measurement (magneto-physical), Electrochemical gas measurement (amperometric/potentiometric), TDLAS (Tunable Diode Laser Absorption Spectroscopy), Thermal conductivity measurement (WLD/TCD), ZrO₂ oxygen measurement, Measurement gas conditioning / gas cooling (sample handling)
- Materials
- Non-dispersive infrared absorption, Non-dispersive ultraviolet absorption, Paramagnetic O₂ measurement, Electrochemical gas measurement, Tunable Diode Laser Absorption Spectroscopy, ZrO₂ oxygen measurement, Sample gas conditioning with Duran glass heat exchanger
- Certificates
- ISO 9001:2015
- Founded
- 1848
- Industries
- Biogas & biomethane, Wastewater & sewage treatment plants, Recycling & waste recovery, Plant engineering, Automotive industry, Glass manufacturing
- 01
Device development
- 02
Manufacturing in Herten
- 03
Factory calibration
- 04
On-site commissioning
- 05
Maintenance, repair & spare parts
- 06
Cloud telemetry
Measurement Methods & Measurement Technology
Non-dispersive infrared absorption
Measures gases such as CO₂, CH₄, CO, N₂O, SF₆ and solvents with patented ZeroLock zero-point correction.
Non-dispersive ultraviolet absorption
For trace gases such as NO, NO₂, SO₂, H₂S, O₃ and Cl₂, where NDIR cross-sensitivities are too large.
Paramagnetic O₂ measurement
Magneto-physical oxygen detection with an accuracy of ±0.05 vol.%.
Electrochemical gas measurement
Detects O₂, H₂S, CO, HCl and NH₃ amperometrically/potentiometrically.
Tunable Diode Laser Absorption Spectroscopy
Laser-spectroscopic methane measurement, e.g. for biomethane quality monitoring.
ZrO₂ oxygen measurement
Oxygen measurement based on zirconium oxide cells.
Sample gas conditioning with Duran glass heat exchanger
Gas coolers condition measurement gas reliably dry and particle-free for maximum measurement accuracy.
Locations
Herten
DEHeadquarters, Development & Production
- Materials
- NDIR, NDUV, paramagnetic, electrochemical, TDLAS, ZrO₂
- Gas Analyzer 320 (multigas, up to 8 measurement channels)
- Gas Analyzer 210
- Gas Analyzer 220
- BioBasic
- Biomethane TDLAS
- TINA InSitu
- RCI 100/500/700 gas coolers
- Smart O₂
- Off-Gas System with Gas Dome 300
- Cloud Connect Kit
Devices & Measurement Systems
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| NDIR gas analysis (non-dispersive infrared absorption)Testing | – | – | – | – | CO₂, CH₄, CO, N₂O, SF₆, solvents, formaldehyde, SO₂, NO |
| NDUV gas analysis (non-dispersive ultraviolet absorption)Testing | – | – | – | – | NO, NO₂, SO₂, H₂S, O₃, Cl₂ |
| Paramagnetic O₂ measurement (magneto-physical)Testing | ±0.05 vol.% | – | – | – | O₂ |
| Electrochemical gas measurement (amperometric/potentiometric)Testing | – | – | – | – | O₂, H₂S, CO, HCl, NH₃ |
| TDLAS (Tunable Diode Laser Absorption Spectroscopy)Testing | – | – | – | – | CH₄ |
| Thermal conductivity measurement (WLD/TCD)Testing | – | – | – | – | – |
| ZrO₂ oxygen measurementTesting | – | – | – | – | O₂ |
| Measurement gas conditioning / gas cooling (sample handling)Testing | – | – | – | – | – |
| Emission monitoring (CEMS) according to BImSchV and EN 14181Testing | – | – | – | – | – |
| Biogas analysis (CH₄, CO₂, H₂S, O₂, H₂)Testing | – | – | – | – | – |
| InSitu gas analysis without sample conditioning (TINA, T90 < 10 seconds)Testing | – | – | – | – | – |
| Off-gas emission measurement (N₂O, CH₄, CO₂) with floating hoodTesting | – | 1.00 m² collection area per hood | – | – | N₂O, CH₄, CO₂ |
| Formaldehyde measurement in hot exhaust gas stream (hot and humid, without gas cooler)Testing | – | Measuring range 0–200 mg/m³ (0–160 ppm) | – | – | CH₂O |
| Maintenance of measurement technology (preventive inspection, filter service, functional testing)Engineering | – | – | – | – | – |
| Repair of gas analysis devices (on-site & workshop, laboratory diagnostics)Engineering | – | – | – | – | – |
| Commissioning & factory calibrationEngineering | – | – | – | – | – |
| Device development and manufacturing (process measurement technology Made in Germany)Engineering | – | – | – | – | – |
16 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Multigas analyzer | Fresenius Umwelttechnik Gas Analyzer 320 (GA 320) | – | up to 8 simultaneous measurement channels | – | Herten |
| Gas analyzer (NDIR, EC, ZrO₂) | Fresenius Umwelttechnik Gas Analyzer 210 | – | – | – | Herten |
| Paramagnetic O₂ analyzer | Fresenius Umwelttechnik Gas Analyzer 210 O₂ paramagnetic | – | Accuracy ±0.05 vol.% | – | Herten |
| Gas analyzer for emission and process monitoring | Fresenius Umwelttechnik Gas Analyzer 220 (incl. biomethane variant) | – | – | – | Herten |
| NDIR analyzer for solvents | Fresenius Umwelttechnik Gas Analyzer 150 | – | – | – | Herten |
| NDIR analyzer formaldehyde | Fresenius Umwelttechnik Gas Analyzer 315 / GA 315 Hot Gas | – | Measuring range 0–200 mg/m³ (0–160 ppm) | – | Herten |
| Biogas analyzer | Fresenius Umwelttechnik BioBasic | – | 1 measurement gas inlet, expandable to up to 5; sample line 25–50 m; measurement interval 5 minutes | – | Herten |
| TDLAS laser analyzer | Fresenius Umwelttechnik Biomethane TDLAS | – | – | – | Herten |
| InSitu gas analyzer | Fresenius Umwelttechnik TINA InSitu | – | T90 < 10 seconds, IP67, DIN EN 60079-29-1, UL/CSA | – | Herten |
| Gas analyzer (portable) | Fresenius Umwelttechnik GA Portable 100 | – | – | – | Herten |
| Gas cooler | Fresenius Umwelttechnik RCI 100 / RCI 500 / RCI 700 (Duran glass heat exchanger) | – | – | – | Herten |
| Smart measurement system O₂ | Fresenius Umwelttechnik Smart O₂ / Smart O₂ Portable | – | – | – | Herten |
| Control/evaluation unit | Fresenius Umwelttechnik Smart Control 300 | – | – | – | Herten |
| Special device | Fresenius Umwelttechnik FTC300 | – | – | – | Herten |
| Off-gas measurement system with floating hood | Fresenius Umwelttechnik Off-Gas System / Gas Dome 300 | – | 1.00 m² collection area per hood | – | Herten |
| Telemetry/cloud connectivity | Fresenius Umwelttechnik Cloud Connect Kit | – | – | – | Herten |
Additional services
Quality & Certification
Fresenius Umwelttechnik is certified to ISO 9001:2015; service processes are audited. Factory calibration, laboratory diagnostics and a 10-year spare parts guarantee ensure measurement accuracy and device availability.
| Evidence | Herten |
|---|---|
| ISO 9001:2015 |
History
- 1848
Company roots in chemical analytics (Fresenius)
More than 30 years of development and manufacturing of gas analysis devices in Herten