Precision, quality and reliability are the center of attention at the ABB factory in Frankfurt, Germany. Here, we construct continuous gas analyzers, a crucial technology for many industrial applications.

In this episode of This is Engineering, we discover how ABB’s engineers are innovating URAS infrared spectrometry analyzers.

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URAS gas analyzer: reliable precision

From monitoring emissions in industrial plant chimneys, to saving lives in hospitals with CO2 diagnostic breath tests, to controlling the ripening levels of bananas during shipment: continuous gas analysis is a fundamental requirement for many industrial applications.

Constructed in our Frankfurt factory, ABB’s continuous gas analyzers support these applications and more around the world. One of the core technologies powering these devices is infrared spectroscopy – known as URAS (abbreviated from German, ultra rot absorptions Schreiber).

Highly simplified, this works by shining an infrared light through a sample of gas and measuring how the light is absorbed. URAS was a breakthrough in gas analysis when invented by engineers Erwin Lehrer and Karl Friedrich Luft in 1938.

URAS has been continually innovated ever since, with ABB playing an important role to drive progress in reliability and precision to meet the needs of industry. One of the latest innovations, as demonstrated by our engineers in this episode, is a unique calibration cell technology.

This award-winning invention is a gamechanger, enabling quick and easy calibration with no need for bulky test gas cylinders. It helps customers reduce operating costs by up to 95%, while ensuring accurate measurement.

Our engineers‘ innovation goes beyond the technology itself. As we show in this episode, we’re also innovating how we build gas analyzers.

In the Frankfurt factory, we build a wide range of devices tailored to many specific applications – this requires a lot of different components, parts and processes. By optimizing the production line, we’re speeding up assembly while maintaining the quality and reliability our customers expect.

Meet the engineers

Benedikt Pfeiffer

Benedikt Pfeiffer, Project manager

I have worked at ABB for 2 years, following 5 years as an engineer in the automotive industry.

I enjoy being a project engineer as I get to work on a variety of tasks: planning, reporting, managing costs and meeting the needs of different stakeholders. I’m driven by curiosity and discovering what comes next, so it’s always exciting to play a part in helping a project develop and reach its potential.

In Frankfurt we have a great team with a can-do mentality – which makes the work even more enjoyable!

Outside of work, I’m a big sports enthusiast – cycling, strength training and especially running, marathon distances or beyond.

I like the challenge of pushing my physical and mental limits. It has taught me resilience, patience and the importance of perseverance – qualities that serve me well at work too.

Both engineering and sports require a combination of strategic thinking, discipline, consistency and adaptability, and I enjoy balancing these two aspects of my life.


Christoph Hopp

Christoph Hopp, Mechanical design engineer

I've worked for ABB for 2 years. Before that, I spent 4 years as a structural and mechanical engineer in the maritime heavy lift crane industry.


What makes me passionate about engineering – whether it’s the largest cranes in the world, or finding the smallest traces of molecules in gases – are the challenges and complexity involved. Working on these amazing products, I have the opportunity to think about innovative ways to solve problems, overcoming barriers, balancing features and complexity, and pushing my knowledge and the limits of what is possible.

This makes me happy and is the reason why engineering is so special for me.

At home, I love spending time with my girlfriend and my dog Louie. Whether walking through the fields and forests around my hometown or a hike in the Alps, I really enjoy being in the nature exploring different landscapes and fantastic views.

I also like doing tours on my road bike or going out on the water chasing top speeds while windsurfing. If the weather doesn't play along, I might disappear into my workshop to work on my other passion, model making, which is where my love for engineering and technology first began.

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