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The practice magazine for process and chemical engineers


1 D ISSN YEAR MAY plus The practical magazine for process and chemical engineers Multi = analog + digital in analog + digital out Special section pumps CITplus, the magazine for the members of ProcessNet, is published by GDCh, Dechema and VDI-GVC Cover story: All-rounder for the Process media analysis 2-channel transmitter with flexible connection options 6 Resource efficiency through process intensification 20 Flow measurement technology product forum 23 System documentation in your pocket 30 Replacement refrigerant without compromises 36 Heat-driven motors 38 Clever pump technology for toxic media

2 Oyls - shutterstock.com SEMINARS & CONFERENCES PROCESS ENGINEERING / ENVIRONMENT Retrofitting of flat bottom tanks and tank cups including coating of inner and outer surfaces of steel tanks and collecting cups as well as highly elastic tank base sealing in Essen according to EN General requirements, materials, production, inspection and testing in Munich Site management in plant construction From assembly planning to completion in Essen 9. -Ing. Kai Brommann Head of Chemical Fire Protection Process Engineering Telephone: +49 (0) Offers at: Pipeline planning for industrial and chemical plants taking into account the ASME code and the EC directives in Munich in Berlin

3 Editorial A fire and its sparks T Wolfgang Sieß Editor-in-Chief Those were already oppressive images on television when the roof structure of Notre Dame, which was partly from the 13th century, was burning in Paris. The towers of this religious symbol and landmark of European-Western culture soar 69 m into the air, only 14 m higher than the large Buddha statue in Bamiyan in Afghanistan, which dates back to the 6th and 7th centuries. 18 years ago, their pictures went around the world when the Taliban blew up this statue and another, slightly smaller one in March 2001. In one case as in the other: How long did it take the countless, unknown craftsmen and artists to erect their monuments with medieval or even ancient tools? And how quickly their work was ruined. For tens of generations, these structures formed the immovable backdrop of their lives; forces of nature caused less damage in centuries than human negligence or narrow-mindedness did in a few hours or even minutes. The Buddha statues, which were only declared a World Heritage Site after they were destroyed, have been restored since 2002, and since then not only the how but also the whether has been discussed. Associated with this is a financial expense of around 50 million dollars, which repeatedly calls for justification. What misery could one alleviate with so much money? But of course the identity-creating aspect of such epoch-making achievements by one's own ancestors can hardly be outweighed with money. Anyone who has ever marveled at Neuschwanstein Castle, who has been pushed through the Vatican with the masses of visitors or who has even visited the huge Notre-Dame de Paris church, may have shaken their heads at the enormous waste of money and resources for its construction . But what would we have to marvel at today, if there weren't those achievements for the higher honor of whom or whatever. The music would be limited to folk and love songs as well as military marches, the architecture to bridges and houses, the painting to nudes and nature scenes. Our world would be a different one, and probably a poorer one. Nevertheless, it seems strange when individual people are able to make the easy decision overnight to donate 100 or even 200 million euros for the restoration of Notre Dame and a state president in national emotion promises to restore everything true to the original, and only for that to need five years. While the construction of the cathedral took another 200 years, it should be possible to do so with all of our current technology and engineering skills and with so much voluntarily flowing funds. Unfortunately, the popular-populist exuberance of the president falls short in the truest sense of the word, as there are probably no longer beams as long as one would need for the gigantic roof structure, because the trees are no longer allowed to get that old . When the smoke has cleared, the embers have cooled down and the minds have calmed down a bit because most of the entire complex could be saved from the flames, considerations may arise not only to keep the old, but to add something that speaks for us today in later times. Tradition does not mean to preserve the ashes, but to pass on the spark. REMBE All rights reserved Your specialist for EXPLOSION PROTECTION and PRESSURE RELIEF Consulting. Engineering. Products. Service. Yours, Wolfgang Sieß DOI: / citp Gallbergweg Brilon, Germany F

4 Contents Cover story TOPIC PROCESS INTENSIFICATION 6 Making more out of less Brief analysis of resource efficiency through process intensification K. Saulich, VDI Center for Resource Efficiency 8 Dates 9 Personnel 10 Business and production 12 Research and development 18 All-rounder for process media analysis 2-channel transmitter with flexible connection options From digital Measuring sensor through automated data acquisition and analysis to cloud-based remote diagnostics, Knick is driving the development of analytical measurement technology in the context of Industry 4.0. The latest generation of its Stratos analytical measuring devices for Memosens, digital and analog sensors with numerous new features is set up for flexible use in all applications. The 2-channel transmitters enable the free combination of parameters for ph, redox, conductivity and oxygen measurement and have additional communication interfaces for data transmission via Profinet and Ethernet. Knick Electronic Messgeräte GmbH & Co. KG, Berlin Carsten Koska Tel .: REPORT 13 A lot has already been done, a lot still to be done The pump and valve manufacturer KSB presents its balance sheet for the 2018 financial year W. Sieß, CITplus / KSB 15 Learning from events and Innovations live a variety of topics at the 4th annual meeting of young professionals in the chemical industry L. Woppowa, VDI-GVC COVER STORY 18 All-rounder for process media analysis 2-channel transmitter with flexible connection options K. Casonato, Knick Messgeräte PRODUCT FORUM FLOW MEASUREMENT 20 Flexim products Flexible industrial measurement technology, systec Controls measurement and control technology, RCT Reichelt Chemietechnik 36 Special section pumps 22 Precise detection of media changes Flow meter ensures more efficiency and less product waste H. Faustmann, Bürkert SYSTEMS APPARATUS COMPONENTS 23 The entire system documentation in your pocket Operating system-independent, mobile documentation solution M Dubovy, Rösberg Engineering 25 Pre-Engineering Everything from a single source Customized solutions for the automation of raw materials and processes A. Billigen, AZO DOI: / citp

5 Intuitive operation and easy recipe creation Modern process control system for vacuum process plants A. Turkowski, D. Schramm, Ekato Holding 28 Resistant under extreme conditions PTFE composite expansion joints in dedusting systems U. Pöhlmann, Frenzelit 30 Substitute refrigerants without compromises Requirements for the use of refrigerants are being tightened J Förster, Weiss Umwelttechnik 32 Grinding sieve with serrated blades Lump breaker reduces agglomerates into 2 mm particles Kason Corporation 33 Reliable measurement data Remote service digital analysis of processes regardless of location C. Hechtl, Hosokawa Alpine 27, 33, 34, 35 Products from Andritz, Eaton, Eirich, Feige, GEA, Gericke, Hamilton, Hecht, Fritsch, Lapp, Menerga, Norres, RCT Reichelt Chemietechnik, Rembe-Kersting SPECIAL PART PUMPS 36 Heat Driven Motors A new, innovative solution for pumps and compressors M. Gloushenkov, A. Kronberg, Encontech, and E. Kenig, N. Mügge, University of Paderborn 38 The first choice l Clever pump technology for toxic media and liquids containing solids or gases, fail-safe, economical and ecological pumping A. van Dorp, Bungartz 40 Plugging in and measuring the precise regulation of disinfectant or other water parameter values ​​D. Schmitz, Grundfos 42 Diaphragm pump enables precise dilution of Emulsifiers V. Kirschbauer, Lewa 41, 44 Products from ARO, CP Pumps, Flux Devices, Fristam Pumps, Pfeiffer Vacuum COMPRESSORS COMPRESSED AIR TECHNOLOGY 45 Seamless in the overall network Customized engineering on the advance also with compressed air S. Meißler, Aerzener Maschinenfabrik 47 Dry screwdrivers New oil-free, smart ones and compact screw vacuum pump C. Angenendt, Atlas Copco 48 Compressed air preparation without compromise Tailor-made system solutions for the right compressed air quality Beko Technologies 46, 47 Products from 3P, Elgi Equipments, Leybold 49 Sources of supply 51 Index / Imprint Enclosures Contents Please note the enclosure from RCT Reich elt Chemietechnik, Heidelberg, in this issue. Energy efficiency thanks to modern pump technology Efficient pump technology from NETZSCH You save energy thanks to our modern pump technology and clever design. The reduced energy requirement with a simultaneous increase in pump performance reduces power consumption and thus sustainably protects our environment. Our pumps stand for absolute environmental awareness. NOTOS screw pump, NEMO progressing cavity pump and TORNADO T2 rotary lobe pump D ISSN YEAR 5 6 Resource efficiency through process intensification 20 Flow measurement technology product forum 23 System documentation in your pocket plus The practical magazine for process and chemical engineers Multi = digital + digital for The process media analysis 2-channel transmitter with flexible connection options 30 Replacement refrigerants without compromise 36 Heat-driven motors 38 Clever pump technology for toxic media Special section pumps CITplus, the magazine for the members of ProcessNet, is published by GDCh, Dechema and VDI-GVC Welcome to the age of knowledge . Wiley maintains its 200-year tradition by partnering with universities, corporations, research institutions, societies and individuals to develop digital content, learning tools, exam and certification tools. In the future, too, Wiley will continue to have a share in the challenges of the future and provide answers that will help you advance in your task. NETZSCH Pumps & Systems GmbH Tel .:

6 Topic process intensification VDI ZRE Make more out of less Brief analysis Resource efficiency through process intensification Process-intensive methods in the chemical industry have a high potential for resource efficiency, as they help to save materials and energy. In the 1970s the idea came up to initiate the development of groundbreaking technologies by means of process intensification. The VDI Resource Efficiency Center (VDI ZRE) has summarized current developments in science and industrial practice in a brief analysis that has just been published. The chemical industry in Germany is facing major challenges: on the one hand, competition is intensifying, and on the other, the demands on the sustainability of production processes are increasing. It is important to be able to react faster to changing demand and at the same time to be able to produce in a more resource-efficient manner. The fact that process intensification (PI) represents a promising strategy to achieve these goals is shown by the new short analysis of the VDI ZRE, which was carried out on behalf of the Federal Environment Ministry. Advantages of process-intensive apparatus and systems Process-intensive apparatus and systems are usually smaller and more compact. Chemical and physical processes inside them are often more efficient than in conventional systems. In particular, heat and mass transfer processes have better properties. Fig. 1: Conventional and intensified process with (a) process reinforcement and (b) process integration

7 Process intensification Fig. 2: Process-intensified process engineering methods can essentially be divided into three categories: 1. Multifunctional reaction processes: In addition to the reaction, one or more other basic operations are integrated into an apparatus (e.g. reactive distillation (see fig.) Or reactive crystallization) . 2. Hybrid separation processes: Two or more separation operations are carried out in one apparatus (e.g. membrane distillation, adsorptive distillation or dividing wall columns). 3. Efficient energy generation: processes that use alternative energy sources or heat transfer routes (e.g. plasma or ultrasound). PI technology or method Energy saving potential Competitive potential Product maturity CO 2 saving potential Success probability Heat-integrated distillation High High High High High Reactive distillation High High High High High Membrane-assisted reactive distillation High High High High Medium Microwave heating / drying High High Low High High Static mixers for continuous Reactions high medium high high high pulsed compression reactor high medium high low low centrifugal fl-fl-contractor high medium medium high high rotor-stator apparatus high medium medium high high photochemical reaction high medium medium medium medium reactive absorption high low high high high electric field reinforced Extraction High Low Low High High Fig. 3: Table of PI technologies with high and medium energy saving potential (according to Keil, JF (2018)) Due to the increased process efficiency, raw materials, consumables and supplies used as well as energy can be significantly reduced be duced. The company's greenhouse gas footprint is getting smaller, and operating and investment costs are also lower. In other words: Process intensification turns less into more. On the other hand, process-intensive devices and systems can be used more flexibly due to their often modular design. Your operators can react more quickly to changing demand and adapt their production accordingly. Using numerous implementation examples, the brief analysis, which can be obtained free of charge from the VDI ZRE website, illustrates these ecological and economic advantages of process intensification. This includes, for example, the static mixer, which, for example, uses 80% less energy to produce methyl acetate from methanol than the previously common process. Continuously operated microreactors, which can replace a discontinuous batch reactor, also have great resource efficiency potential. Challenges in the implementation in practice The development and introduction of process-intensive devices and technologies is challenging for a company. The laboratory examination to generate basic data for the design as well as the conception of a pilot plant is personnel, time and cost intensive. The associated entrepreneurial risk represents the greatest hurdle for application in practice. So far, numerous process-intensive devices and technologies have been developed in science and in the business environment (see the technology overview in the european roadmap for process intensification). Despite the large number of developments over the past forty years, relatively few of them have reached industrial production. One of the main reasons for this is the generally high entrepreneurial risk. Another reason lies in the technological nature: On the one hand, there is a lack of scale-up knowledge and, on the other hand, there is too little operational experience with pilot plants. However, the obstacles can often be removed through further research and development work as well as further pilot and demonstration systems. The author Dr.-Ing. Katja Saulich, VDI Center Resource Efficiency VDI Center Resource Efficiency GmbH (VDI ZRE), Berlin Sophia Faber Tel .: publications / short analyzes DOI: / citp

8 Dates June Process development for cleaning biopharmaceuticals June Frankfurt / M Gesellschaft Deutscher Chemiker, About the correct handling of infrared measuring devices June 4th Berlin Optris in cooperation with FaSTTUBe, 9th Essen Hazardous Substances Days June Essen House of Technology, maintenance strategies June Altdorf Technical Academy Wuppertal , Combined advanced training for immission control / accident, waste and water protection officers Instruction for authorized persons in connection with 9 OWiG in the dangerous goods area Quality improvement and cost reduction through statistical test methodology June Lindau (Lake Constance) House of Technology, June Essen House of Technology, June Frankfurt / M Gesellschaft German chemist, SAP EAM June Potsdam TA Cook & Partner Consultants, Lean & Agile Development June Frankfurt / M Gesellschaft Deutscher Chemiker, Betriebsingenieur VDI - Workshop Preparation workshop for the certificate examination June 7th Düsseldorf VDI Wissensforum, Design of Experiments (DoE) Workshop June 7th Frankfurt / M Gesellschaft Deutscher Chemiker, basics of Computer-aided design of active ingredients June 7th Frankfurt / M Gesellschaft Deutscher Chemiker, basic knowledge: industrial humidity measurement technology June Frankfurt / M VDI Wissensforum, measurement internship for BetrSichV and DGUV regulation 3 (BGV A3) Electrical systems and equipment June Wuppertal Technical Academy Wuppertal, Technology Training Modbus June 18th Reinach, CH Endress + Hauser, MSR-Spezialmesse North 19.June Hamburg Meorga, damage analysis for practitioners June Essen House of Technology, use of statistical software R: Basics, data mining & machine learning ISO The management system for occupational health and safety June Frankfurt / M Gesellschaft Deutscher Chemiker, June Wuppertal Technical Academy Wuppertal, basic knowledge of mechanical process engineering June Mannheim VDI Wissensforum, wear protection of technical surfaces June Bad Herrenalb DIF - German Industry Forum, functional safety in the process industry basics June Frankfurt / M Dechema, classic and non-classic crystallization June Konstanz Gesellschaft Deutscher Chemiker, training as explosion protection officer June Essen Haus der Technology, successful project work in Asia June 26th Bad Herrenalb DIF - German Industry Forum, management representative and internal auditor for occupational health and safety (TAW Cert) June Wuppertal Technical Academy Wuppertal, successful business relations with China June 27th Bad Herrenalb DIF - German Industry Forum, The SIL-Tag: Special topics on PLT safety devices June 27th Frankfurt / M Dechema, plant engineer VDI Module 2: Asset management June Stuttgart VDI Wissensforum GmbH, control engineering in practice June Altdorf Technical Academy Wuppertal, process engineering plant planning in practice June Altdorf Technical Academy Wuppertal, exhaust gas purification process June Munich House of Technology, pipeline planning for industrial and chemical plants June Munich House of Technology, July Planning and organization of maintenance July Altdorf Technical Academy Wuppertal, the operations manager in the chemical and process industry Optimized use of shredding machines and air separators July Timmendorfer Strand House of Technology, July Freising VDI Wissensforum, Automation July Baden-Baden VDI Wissensforum, Design of Experiments July Frankfurt / M Dechema, functional safety of the MSR facilities in the Ra hmen of explosion protection concepts About the correct handling of infrared measuring devices July 3, Munich July 3, Bochum Dekra Testing and Certification, Optris in cooperation with MEESSBAR, workshop on the functional safety of MSR facilities July 4, Bochum Dekra Testing and Certification, product development Von der Idea for the chemistry-based product July Frankfurt / M Dechema, DOI: / citp

9 Personalia (from left) Maike Toivonen (Chairwoman of the Möller Foundation), Dr.-Ing. Marco Roland Gleiß (award winner, Karlsruhe Institute of Technology); Dr.-Ing. Hermann Möller (founder of the Möller Foundation) Chereén Semrau, ProcessNet Jochen Block Prize 2019 for Sandra Luber The Jochen Block Prize 2019 of the German Catalysis Society goes to Prof. Dr. Sandra Luber from the University of Zurich. This acknowledges her outstanding contributions to the theoretical treatment of catalysts, especially with regard to structure, dynamics and spectroscopy. The Jochen Block Prize is endowed with and recognizes exceptional achievements by young scientists. The current work of Luber deals with the development of calculation methods for high-precision (dynamic) investigation and intelligent construction of efficient catalysts as well as new approaches for computer-aided spectroscopy. She received her doctorate in (relativistic) quantum chemistry and theoretical spectroscopy from ETH Zurich in 2009. Johannes Möller Prize for Marco Roland Gleiß The Johannes Möller Prize 2019 was awarded to Dr.-Ing. Marco Roland Gleiß awarded. He received the award for his doctoral thesis on the subject of dynamic simulation of mechanical liquid separation in solid bowl centrifuges, which he carried out at the Karlsruhe Institute of Technology under the direction of Prof. Dr.-Ing. habil. Hermann Nirschl made. The Möller Foundation awards the endowed prize every year for an outstanding dissertation in the field of solid process engineering. citpus Stöckl leads Endress + Hauser Sales Center Germany Oliver K. Stöckl has succeeded Günther Lukassen as Managing Director of Endress + Hauser Messtechnik since April 1, 2019. Stöckl studied industrial engineering at the Wilhelmshaven University of Applied Sciences. He started his professional career in 1993 as a sales engineer in the ceramics industry. He has worked for the electronics and automation technology company Phoenix Contact since 2012, most recently as managing director of the subsidiary Phoenix Contact E-Mobility GmbH. Günther Lukassen will leave Endress + Hauser at the end of May after more than 30 years with the company. In these 30 years, the process engineering engineer has held a wide variety of roles in marketing and sales, many of which outside of the German sales company, he took over the management of the Sales Center Germany. Günther Lukassen has contributed a lot to the development of the group of companies over the past 30 years. Awarding of the Friedrich Löffler Prize during the opening event of Partec in Nuremberg (from right): Prof. Stefan Heinrich, Chairman Partec 2019; Jun. Prof. Dr.-Ing. Carsten Schilde; Mrs. Löffler, widow of the namesake. Friedrich Löffler Prize for Carsten Schilde The Friedrich-endowed pioneering publications. Schilde volunteers for the Löffler Prize received this year Jun. Prof. Dr.-Ing. Carsten Schilde from the Institute for Particle Technology at the TU Braungineering. The VDI-Gesellschaft Ver European Federation of Chemical Enschweig. Schilde convinced the jury fahrenstechnik and chemical engineering (GVC) awards this prize for the combination of excellent basic research in the field of promoting young engineers, the special characterization and modification of particles with forward-looking merits in the field of particle research, particle technology and the product-related Research and development as well as by its great international visibility and numerous product designs. Rupture discs within 24 hours REMBE Rush Order Made in Germany DOI: / citp

10 Economy + Production Much more than just particulate interest Powder and bulk goods industries met at the trade fair and congress in Nuremberg Powtech again impressed this year as the leading international trade fair for the powder and bulk goods industries. On three days, visitors were able to experience a first-class trade fair program and get useful information. 824 exhibitors from 35 countries presented their innovations in six halls at the Nuremberg Exhibition Center. Numerous lectures in the specialist forums with a focus on chemistry, food and pharmaceuticals conveyed the latest scientific findings. According to Beate Fischer, head of Powtech, the proportion of foreign visitors of 40% confirms that Powtech is the undisputed industry get-together for the powder and bulk goods community on an international level. The exhibiting companies used a total area of ​​around m 2. Initial surveys during the trade fair showed that 87% of the exhibitors expected follow-up business at Powtech 2019 due to the e and initiations. The world-renowned Congress for Particle Technology, Partec, also achieved a positive result. 500 participants from 30 countries were able to gain new impulses and expert knowledge from first hand. According to Prof. Stefan Heinrich, head of the Institute of Solid Process Engineering and Particle Technology at the Hamburg University of Technology, who chaired Partec this year, the upcoming Partec in 3 years will be chaired by Prof. Dr.-Ing. Arno Kwade from the Technical University of Braunschweig. But before that, there will be the next Powtech in 18 months from September 29 to October 1, 2020 in the Nuremberg Exhibition Center. Satisfied organizers (from right): Beate Fischer, Head of Powtech, Dr. Ljuba Woppowa, managing directors of the VDI Society for Process Engineering and Chemical Engineering GVC, the ideal sponsor of Partec, Prof Dr. Johannes Bartholomäus and Prof. Jörg Breitkreuz, as representatives of the Working Group for Pharmaceutical Process Engineering (APV). Citplus Zeppelin closes the financial year with a new record The Zeppelin Group won the 2018 financial year with the highest plants in China. The construction of plastics production sales in the company's history was completed. The group sales were Zeppelin product innovations such as. In the case of systems for the baking industry, the Codos NT kneading system contributed 2.9 billion, after 2.62 billion in the previous year, the Codos NT kneading system Earnings before taxes Kromix launched. The 131 million (previous year: 97.7 million). According to market position in the rubber sector and the chairman of the management board, Peter Gerstmannder, the acquisition of the Italian tire manufacturing company was able to be focused on strengthening the digital company Nuova Ciba in 2018. Necessary bulk solids to transform our existing businesses and drive the development of new ones in the field of recycling and digital business models. The SBU Plant Construction achieved growth opportunities in battery production last year, offering a very high level of incoming orders in new markets for plant construction. through several large orders, which for Apollo now belongs to the Freudenberg Group. The Freudenberg Filtration Technologies Business Group has taken over the majority stake in Apollo Air-cleaner. The Chinese antitrust authorities have approved the takeover. The company is a leading provider of air and water filtration solutions in China. In 2017 Apollo had a turnover of 750 million RMB (about 96 million) with about employees. It is now run as a joint venture between Freudenberg as the main shareholder (75%) and the previous sole owner Apollo Trading Group, Japan, and bears the name Freudenberg Apollo Filtration Technologies. Freudenberg Filtration Technologies is contributing its existing business with applications for room air filtration to the joint venture. The filtration solutions from Apollo free the room air or drinking water from (ultra) fine particles, dangerous gases, odors and microorganisms. Apollo has its production site in Shunde, China and is certified according to ISO 9001, ISO and TS DOI: / citp

11 Economy + Production Brand changeover: Voswinkel becomes Stauff With the introduction of Voswinkel Stauff's own pipe screw connection program and hose fittings, an essential part of Connect and the takeover of Voswinkel in April 2015, the Stauff Group has gradually developed into a full-liner for components of hydraulic lines . In order to further strengthen the perception as a single source, it has now been decided to merge the Voswinkel product brand with the Stauff product brand. Quick connect couplings from the Stauff Group's portfolio. Overall, this includes more than line components and hydraulic accessories from our own production for machine and plant construction and industrial maintenance. In the future, all products will be marketed under the Stauff brand. Denios opens a technical center for ventilation technology Denios has a technical center for the business area at its headquarters in Bad Oeynhausen, to illustrate the different functional principles. On the other hand, air technology / containers, customers can open the exhibits actively systems. On the one hand, this serves as a showroom for customers to use with a wide range of functional systems, from the extraction arm for their own tests and measurements. The new technical center is also used within the company for the further development of the existing product range through to accessible free work. MSR-Spezialmesse Nord in Hamburg In Hamburg-Schnelsen organizes the visitor comprehensively. the Meorga on June 19, 2019 in the Die Messe is aimed at professionals in the MesseHalle a regional special trade fair for measurement, control and companies for the optimization of and decision-makers who are involved in their control technology, process control systems and business and production processes automation technology. From 8:00 a.m. to 4:00 p.m., 150 specialist companies are responsible for the supply chain. The devices and systems, engineering admission to the trade fair and participation and services as well as new lectures are free of charge for visitors. Automation trends. 36 accompanying lectures - Grundfos gains market share worldwide In 2018, net sales rose to 322 million. In important Grundfos markets by approx. 147 million to such as China, the USA and Western Europe, sales increased by 3.6 billion .. This represents the highest turnover ever achieved in the history of the Grundfos Group. In addition, the global local currencies measured, this corresponds to sales growth at the end of the financial crisis before almost 10 highest organic growth since of 6.6%. The earnings contributed years ago to interest. and taxes (EBIT) rose by 7 million. Confirmed: Atlas Copco vacuum pumps are completely oil-free Atlas Copco was the first manufacturer to have its vacuum pumps checked for traces of oil by TÜV Rheinland according to the ISO standard. Three different types of oil-free vacuum pumps were measured and certified: the DZS claw vacuum pump, the speed-controlled screw vacuum pump DHS VSD + and the new Atlas Copco series of speed-controlled liquid ring pumps LRP, which TÜV Rheinland has classified as absolutely oil-free in the top class 0 of the ISO. The measurements were carried out without an oil extraction device at the outlet between the pump and the measuring membrane. The three pump types were certified by TÜV Rheinland to ensure that no traces of aerosols (according to the definition of class 0, the concentration is below 0.01 mg / m³) in the exhaust air flow to VSD +. All three pump types were identified. PI conference discusses solutions for the future At the PI conference at the end of March, over 340 interested people discussed the PI technologies of today and tomorrow in Frankfurt. How do we manage to develop a vision for the future that builds on what we have today? Said CEO Karsten Schneider, formulating the central question, referring to the more than 86 million Profibus and Profinet nodes installed in the field. As a result, the combination of Profinet and OPC UA, the addition of TSN technologies to Profinet or the work on APL (Advance Physical Layer) as well as vertical and horizontal integration became logical. It became clear that semantics and information models will play a decisive role. Only if the data is understood by everyone are concepts in the sense of Industry 4.0 possible at all, as Schneider deals with topics at the conference. DOI: / citp

12 RESEARCH + DEVELOPMENT DOI (Digital Object Identifier) ​​The messages with DOI (Digital Object Identifier) ​​on this page are based on original scientific work that appears in full in the Chemie Ingenieur Technik, Wiley-VCH, Weinheim. An article is called up in the web browser at the address with the following DOI. Catalyst screening In the Sabatier process, hydrogen is converted with carbon dioxide to methane. The be-all and end-all here is a high-performance catalyst system. In a study, around 500 quaternary catalysts with various combinations of active components (Co, Fe, Ir, Ni, Rh, Ru or Pd) and support materials (Al 2 O 3, CeO 2, SiO 2, TiO 2 or ZrO 2) were tested Impregnation and sol-gel synthesized and screened. A special 10-fold parallel gas phase flow reactor was constructed for this task. With the help of the reactor gaps in the reactor block and micro-gap plates coated with catalyst, a micro-gap system with microscale wall catalysts resulted. The gas phase composition was analyzed using GC-FID. For Ni-Co catalysts, aluminum oxide and cerium (IV) oxide showed the highest conversions and selectivities. Mirko Pfeifer, Chemnitz University of Technology DOI: / cite systems with [Rh (cod) Cl] 2 as precursor and tri- (sodium-meta-sulfonatophenyl) -phosphine (TPPTS) as ligand. In order to gain insights into the process, the kinetics and the reactivity at the interface, a hydroformylation in the jet loop reactor In a study, the two-phase hydroformylation of 1-octene with an additive-free aqueous phase as the solvent phase for the catalyst recycling examined. The technical approach followed. Carrying out the reaction in a jet loop reactor to intensify the s between the phases resulted in an excellent gas-liquid-liquid reaction, activity and stability of the catalyst system. homogeneously catalyzed with the help of an industrial standard catalyst- Andreas J. Vorholt, Max Planck Institute for Chemical Energy Conversion, Mülheim an der Ruhr DOI: / cite Millitructured plate reactor Micro- and millistructured reactors offer significant advantages compared to conventional reactors, e.g. B. in terms of heat and mass transfer as well as security. In order to replace larger batch reactors with continuously operated millireactors, extensive characterization of the reactor is necessary. The heat transfer and hydrodynamics of the millitructured plate reactor PR37 were examined in a study. The meandering of the process channel and its periodically changing cross-sectional area increase the heat transfer significantly and lead to a dependence of the heat transfer coefficient on the Reynolds and Prandtl numbers, which are not found in even channels with Reynolds numbers below. Alexander Rave, Hamburg University of Technology DOI: / cite rectangular channel with microstructured mixer micro- or millireactors can be an interesting process engineering solution for gas / liquid reactions. One such commercially available reactor concept are Miprowa reactors.They are similar in structure to tube bundle heat exchangers, but have flat rectangular channels as process channels into which static mixing inserts are inserted. In a study, the volumetric mass transfer coefficient klaph was investigated in such a rectangular duct a few millimeters high. With the help of a physical absorption of CO 2 in H 2 O, inter alia. receive a gas / liquid flow map and first systematic measurements of the klaph value depending on various process settings, such as gas and liquid volume flows and gas content. With regard to the mass transfer coefficient and energy input, the Miprowa is to be classified between bubble columns and flow tubes equipped with static mixers. It proved to be much more efficient than a fumigated stirred tank. Anne-Laura Sengen, Ruhr University Bochum DOI: / cite Structured Millireactor Milli-scale reactors with an integrated microstructure open up promising approaches for upscaling conventional microreactors. In one study, structured porous millireactors were used with the help of 3D printing to investigate industrially relevant liquid-liquid reactions. The underlying transport mechanisms were identified by quantifying the heat and mass transfer at the interfaces. Under Taylor flow conditions, the structured reactors worked only to a limited extent efficiently compared to a fixed bed reactor due to the limited mass transfer at the interface. In contrast, in stratified flow, their performance increased significantly with a fraction of the pressure drop of a fixed bed. Simon Kuhn, KU Leuven, Belgium DOI: / cite Dynamic methanation The power-to-gas concept aims to store excess solar and wind energy by generating hydrogen electrolytically and converting it into methane with carbon dioxide. The CO 2 methanation is subject to a strongly fluctuating supply of raw materials. To investigate these dynamic conditions, it is helpful to operate with defined fluctuations in the concentration of the supplied gases. In a study, a Ni / Al 2 O 3 catalyst was operated under cyclical concentration changes under industrially relevant conditions in order to gain knowledge about the reaction rate and the reaction mechanism. It was found that no methane is formed in the CO 2 -rich part of the cycle, while a rapid hydrogenation of carbon-containing species to methane takes place when switching to H 2. Bjarne Kreitz, Clausthal University of Technology, Clausthal-Zellerfeld DOI: / cite DOI: / citp

13 Report KSB Fig. 1: In the service segment, incoming orders in the group in the 2018 financial year amounted to 441.7 million. A lot has already been moved, still a lot to do The pump and valve manufacturer KSB presents its balance sheet for the 2018 financial year Since last year, the incumbent board member of the Frankenthal-based pump and valve manufacturer KSB with the result of the past financial year, because the profit fell, although the turnover increased. However, a lot has already been done and we have begun to carefully wake the sleeping giant, said the managing director and spokesman for the management team, Dr. Stephan Timmermann presenting the balance sheet for the year In the 2018 financial year, KSB achieved sales of 2.246 billion. That is 41 million more than in the previous year, corresponding to an increase of 1.9%. Without currency effects, sales growth would have been +6.1% and in line with expectations. The currency-adjusted earnings after taxes fell by more than half from 52 million in the previous year to 24 million. After cost-saving measures and the restructuring of the group, the company is in a phase of upheaval. Already in the coming year, both sales and profits are to be increased significantly. The industry market segment currently accounts for the largest share of sales, namely 28%, followed by water / wastewater (18%), energy (17%), oil & gas (15%) as well as building technology and mining with 11% each. All regions contributed to the growth, with two thirds especially Asia and Europe. Pumps are still the largest segment with incoming orders of 1.5 billion. In the Valves segment, incoming orders totaled 356 million and in the Service segment 442 million. Profitable business areas identified After a portfolio analysis, a number of promising fields were identified in which will be invested more. This includes, for example, the program for solids transport pumps in the USA, or that for power plant pumps in India and China. Timmermann named reverse engineering, materials science as well as online monitoring and digitization of the flow of information as strategic key competencies that need to be strengthened for his company. In the water and wastewater business especially in India and China, the board sees

14 Report CITplus Fig. 2: Aim of the spokesman for the management, Dr. Stephan Timmermann, it is carefully to wake the sleeping giant KSB. Fig. 3: KSB has had a management team with four managing directors (from left) Ralf Kannefass, Dr. Stephan Bross, Dr. Stephan Timmermann, Dr. Matthias Schmitz. Also new as Head of Corporate Communications: Wilfried Sauer. huge potential. We're not growing as much in this area as we would like! The Frankenthalers also have some catching up to do in the industrial sector. B. in pumps for the food market. And with KSB SupremeServ, they have created their own brand for the increasingly important spare parts and service market. Around 20% of the existing group business comes from it and the goal is to double this share. A look at the figures shows that this does not have to be an unrealistic dream: The pump base installed worldwide is worth around 500 billion, of which KSB pumps contribute around 30 billion. According to the company, around employees work at the headquarters in Frankenthal. In total, around 80 people were employed in the group's around 80 companies around the world in 2018. DOI: / citp Integrated intelligent explosion protection esuppressor permanently monitors the functionality of the trigger mechanism Holistic, integrated explosion protection solutions are more than the sum of individual components. Rather, as intelligent systems, they have to act in a networked manner. Therefore, IEP Technologies is presenting a fundamental innovation at Powtech 2019: the esuppressor. It works without pyrotechnics or gas generators based on a magnetically controlled electrical solution. The esuppressor enables intelligent explosion protection throughout. The solution, controlled by a magnet, offers an advantage over conventional triggers that use pyro technology or gas generators: the electrical connection can be checked here. However, it is not possible to check whether, for example, there is actually gas in the gas generator and whether it would be triggered in an emergency. The scenario is unlikely, but possible. Only the ignition would confirm the functionality comparable to a match: it is only then certain that it actually burns as soon as it is ignited. However, the esuppressor allows the functionality of the trigger mechanism to be monitored permanently. The electronic, SIL-certified chain between the central assemblies including the extinguishing agent container can be efficiently controlled from the control room with the esuppressor. Markus Häseli, Director of Sales Europe, IEP Technologies The reconditionable esuppressor guarantees intelligent explosion protection in the form of an integrated safety lockout for safe access to the process vessel. The new extinguishing agent container is compatible with the SmartDS detection system, which uses complex algorithms to ensure that normal process pressure fluctuations can be reliably differentiated from an explosion. IEP Technologies GmbH, Ratingen Markus Häseli Tel .:

15 Report Sergey Nivens - stock.adobe.com Learning from events and living innovations Diversity of topics at the 4th annual meeting of young professionals in the chemical industry Around 70 young professionals came to Dortmund for the 4th annual meeting of young professionals in the chemical industry to learn about the Exchange the framework of the trade fair duo Maintenance and Pumps & Valves. The motto of the event organized by the VDI-Gesellschaft process engineering and chemical engineering (VDI-GVC) was: Learn from events, share knowledge, live innovations. In addition to the lectures, the guided tours of the fair also offered an important practical relevance for the participants. The 5th annual meeting of young professionals will again take place in Dortmund parallel to the two trade fairs. The opening lectures by representatives of well-known companies showed the young professionals which responsible and demanding profession they have chosen. Dipl.-Ing. Martin Gosewinkel, Evonik, explained in his lecture Electrostatics The Black Magic of Explosion Protection which dangers can arise from this everyday manifestation of electrostatic charge: Everyone has had one wiped at one point or their hair stood on end. However, when a chemical plant is in operation, electrostatic discharge and poor grounding can lead to catastrophic, fatal events. Martin Gosewinkel gave concrete help in the form of calculation examples and decision trees and presented protective measures against electrostatic charges. Dr.-Ing. Peter Fischer, Vestolit, in his lecture Learning from Events. He encouraged the young professionals to critically question their environment and work processes at all times. Whenever a particularly serious event is involved, there is usually a multitude of individual small causes at play, i.e. a chain of unfortunate circumstances, as the common saying goes. In addition, human errors take various forms. On the one hand as errors, planning errors, inability (so-called mistakes), d. H. Information is not available or is incorrect, a procedure is not optimal. On the other hand, it must be distinguished from excessive demands (mismatch), i.e. H. the inability to correctly implement information or instructions. Slips and lapses of attention are simply unavoidable as a third form in everyday life. And then there are conscious violations, in which an action is intentionally not carried out or carried out incorrectly. Each of these manifestations has un

16 Report Fig. 1: GVC Managing Director Dr. Ljuba Woppowa with the organization team of young professionals in the chemical industry: The conference guides Dr.-Ing. Oliver Litzmann / Bayer, M.Sc Valeska Zindl / Merck, M.Sc. Nina Heitz / Sasol Wax and M.Sc. Viktor Heinrich / BASF and the tour guides B.Sc. Florian Müller / Kiessling, M.Eng. Helge Saß / Evonik, Dipl.-Ing. Christian Storf / Sulzer and M.Sc. Heiko Radatz / Covestro. Different, deeper root causes, the employee did something wrong is not one of them. With every investigation of major events, a retrospective has shown that there were always indications in advance of deviations and the resulting risks. Such warning signals indicate that an event can occur and can allow conclusions to be drawn about the cause. For the safe operation of a system, it is therefore important to find and minimize as many weak points in technology, organization and human behavior as possible in advance. That is easier said than done and here career starters with their unobstructed view have a special task and responsibility, which Fischer explicitly requests: Ask and question until you have clarified the background and the root causes. In many cases, omissions and negligence that have been ground in over the years (it still went well) can only be cleared up through systematic questions. Even in the case of small discrepancies, failures and incidents, do not immediately let the obvious findings be explained as the sole cause. Research deeper and broader, touch yourself and others by the nose, because we quickly get used to seemingly insignificant malfunctions. This also applies to the executives, the management and the organization. On this search you will most certainly find out things that have nothing to do with the specific occasion and that are neither beautiful. But they may already be the basis of the next event! Only when the root causes have been found can sustainable countermeasures be taken that strengthen the organization as a whole and make it more resilient. If we get used to getting to the bottom of things, this not only leads to an improvement in work and plant safety. It also improves the efficiency of all equipment and processes. In the end, this is not only a great economic benefit, but also good for the environment and product quality. Sharing knowledge The young professionals in the chemical industry have an excellent education in process engineering and chemical engineering, but what about the knowledge of VDI business administration? For the future managerial tasks of the young aspiring engineers, this knowledge and business management thinking is becoming more and more important, even if it is not or only rarely taught and reluctantly learned in natural science studies. Having an understanding of the company's key figures is elementary in order to meet the targets set or to be able to survive as a company in an international comparison. It is also helpful to be able to better assess your own company, e.g. B. in the event of a planned job change or salary negotiations. Dipl. Biol. MBA Sandra Schwebke explained in her lecture the most important company key figures as well as their informative value. EBIT describes earnings before interest and taxes, in contrast to EBITDA, which corresponds to earnings before interest, taxes, depreciation of property, plant and equipment and amortization of intangible assets. The calculation of the EBITDA avoids an influencing of the profit by the financing structure, the company seat and the applied accounting of the company and thus enables a comparison with other companies. EBITDA is therefore the measure of economic success and profitability. Dr.-Ing. Gregor Fernholz, Aveva, and explained using specific case studies from various companies what significant savings potential is possible for existing systems through real-time optimization as an established technology. The model-based optimization of the current production can also bring economy and ecology into harmony, e.g. B. with regard to an optimized CO 2 balance. Real Time Optimization can be applied to individual systems as well as entire locations. Innovations live Creativity and innovations arise when different training directions and different experiences and life experiences come together. Young professionals increasingly have to look beyond their own nose and in the direction of other industries. To make this clear, Paul Thorwarth, Kuka Systems, explained the adaptability of modern production systems due to new (market) requirements from the automotive industry. So far, manufacturing concepts have essentially been defined by the structure and joining process of the product, the arrangement and concept of the connecting conveyor technology and the parts logistics within the production plant. However, the market and customers are increasingly demanding a mix of types, more frequent model changes and one

17 Report increasing and individualized variety of types and variants. This results in an increasing need for versatility in production; and the overall result is a volatile market and an individualized product range. Innovative production must respond to this. In the automotive industry this is z. B. made possible by an extracted logistics in which all production parts are concentrated in a central location, the so-called supermarket. This results in a local separation of production and logistics (production field & warehouse) and the technical separation of the production facility into product-neutral and product-specific equipment (toolstore). The prerequisites are, among other things, an autonomous driverless transport vehicle (Automated Guided Vehicle, AGV) with a fleet manager and a control concept that makes optimal use of the Internet of Things (IOT) and Artificial Intelligence (AI). Challenge: Compatibility of work and family Innovations are also created through gender diversity: Know-how, commitment, ways of thinking and leadership qualities of women have become an indispensable part of modern companies. Nonetheless, women with excellent training in their mid-thirties are often no longer available for the job market. Child (ren) and a stressful career, possibly even a management position, that is still rare in Germany, and not just in the chemical industry. Sad for a country like ours, which is the only resource that can show people, their intelligence and innovative strength. The compatibility of work and family for both men and women is therefore one of the greatest social challenges of our time. On the occasion of International Women's Day on March 8, 2019, Simone Menne, former Lufthansa CFO and the first woman to be promoted to CFO of a DAX group, proclaimed: Women, do not rest, never make yourself dependent and make sure that you cope on your own come until you are 90 years old. But Menne doesn't have a recipe for the compatibility of family and work either, but Julia Eckert and Katharina Ropeter (JuKa) with their job sharing model at Beiersdorf.Julia completed a pharmacy degree and has extensive know-how in drug, patent, emulsion and product development as well as in project management and team management. She has an older son (5 years) and twins aged 3 years. Katharina studied food chemistry and is familiar with open innovation, supplier management and test methods. She has a lot of experience in intercultural skills and team leadership. She also has a daughter who is 20 months old. As a JuKa, they have 25 years of work experience together, have the same basic values ​​and a similar management style and both have a desire for adventure. They can support each other as mutual sparring partners and are mutually the closest coaches and critics. There is only one JuKa person in the company with a common address. Your working time model is best described by a 60% / 60% division. Decisions are made together, which is sometimes difficult, but in most cases it is helpful. The mutual exchange, the confirmation of the other is a relief that does not give the diabolical cascade of brooding, excessive demands, burnout a chance and thus permanently promotes satisfaction and performance also in terms of profitability and productivity of the company. More flexible working time models Job sharing is a tool to meet the demand for more flexible working time models. Business economist Rainer Gimbel, Evonik, and Christina Braase, diversity expert at Beiersdorf, are convinced that job sharing can be a win-win situation for companies and employees. This form of cooperation is suitable for everyone who wants a responsible job on a part-time basis and does not want to decide between work and private life. In addition to the JuKa working time model, a wide variety of constellations are conceivable and everyone is likely to find themselves in a situation at least once in their life in which a corresponding regulation would be desirable: Peter, 62, would like to cut back on his retirement and practices a 60% / 60% Job sharing model with Annika, 33, who is doing a part-time doctorate Robin, 43, was on the verge of burnout and is practicing an 80% / 50% job sharing model with Oliver, 34, whose son started school last summer Klara, 36, is just out returned from parental leave and practices a 50% / 50% job sharing model with Sigrid, 55, who is currently involved in caring for her mother. Rainer Gimbel reports that 89% of Evonik's workforce would like (systematic) job sharing to be introduced. Both Evonik and Beiersdorf are working together with the Berlin start-up Tandemploy to set up such job-sharing tandems. There, working models and structures are brought into the digital age. Their software or platform is used to offer employees a private, closed, internal space in which they can exchange ideas with other interested colleagues and come together with regard to the right chemistry. Similar to the private partner search, z. For example, using Tinder, employees create meaningful profiles on the platform and receive suggestions for suitable colleagues. Subsequently, recording and exchange are made possible via the message function. If desired, the profiles can be merged into a tandem profile and the future couples can plan their application or future collaboration. The platform has been active at Evonik since October 2018, at Beiersdorf since the end of There, the job sharing model has been developing since 2010, and the number of tandems has risen sharply since 2017. Basically, the work model at Beiersdorf has only been used by around 2% of employees so far. Overall, there is still a lot of room for improvement. Social mills grind particularly slowly. It often takes more than a generation for something new to become anchored in people's minds. The author Dr. Ljuba Woppowa, Managing Director of VDI-Gesellschaft Verfahrenstechnik und Chemieingenieurwesen (VDI-GVC) So it goes on The annual meetings of young professionals in the chemical industry are organized by the young professionals of the VDI-Gesellschaft Verfahrenstechnik und Chemieingenieurwesen (VDI-GVC) and supported by Easyfairs . Young professionals who want to get involved in the program committee and in the organization of future annual meetings, please send an to The 5th annual meeting will take place on Wednesday, February 12, 2020 as part of the Maintenance and Pumps & Valves trade fairs in Dortmund and the organizational meeting on in Frankfurt /Main. All information on The successful VDI concept has meanwhile become a model for another innovative branch. The 2nd annual meeting of young professionals in medical technology will take place in cooperation with the MedtecLIVE trade fair in Nuremberg. Further information on the Association of German Engineers e.v., Düsseldorf Dr. Lyuba Woppowa Tel .: DOI: / citp

18 Cover story Cover story All-rounder for process media analysis 2-channel transmitter with flexible connection options Ketty Casonato, Product Manager Analytical Measurement Technology, Knick Electronic Measuring Devices From digital sensors to automated data acquisition and analysis to cloud-based remote diagnostics, Knick drives the development of analytical measurement technology in context of Industry 4.0. The latest generation of its Stratos analytical measuring devices for Memosens, digital and analog sensors with numerous new features is set up for flexible use in all applications. The 2-channel transmitters enable the free combination of parameters for ph, redox, conductivity and oxygen measurement and have additional communication interfaces for data transmission via ProfiNet or Ethernet IP. Knick is further expanding its range of fittings, measuring and analysis devices as well as compact connection options for connection to process control systems for everything to do with Memosens sensors. In addition to established bus systems and transmission protocols, networking via Ethernet is increasingly being used to make data communication more flexible. With the new generation of transmitters, Stratos Multi, the specialist in electronic measurement technology is introducing a 4-wire device that is compatible with Memosens and which, in addition to four analog current outputs, also has interfaces for data transmission via Profinet and Ethernet IP. The transmitter line thus fulfills all requirements that are required in the Industrial IoT for integration into the corresponding process control systems as well as for remote maintenance and remote configuration

19 Cover story Fig. 1: With the Stratos Multi, various parameters such as ph value and conductivity can be measured with analog and / or digital sensors. Fig. 2: Intuitive display with plain text information as well as NE 107-compliant symbols and Sensoface icons. Flexible sensor and parameter selection The Stratos analysis measuring devices have proven themselves for years in the chemical industry, pharmaceutical and biotechnology, the food industry and power plant technology due to their extensive functionality and their safe, intuitive operating concept. In the basic version, the transmitters of the new Stratos Multi model series are used to connect a Memosens sensor for all relevant parameters. By integrating an additional measuring module, the Stratos Multi is transformed into a 2-channel transmitter. Then two Memosens sensors can be operated at the same time. Alternatively a Memosens and an analog or digital sensor. The combination of different sensors is not subject to any restrictions, so that the Stratos Multi can measure any two parameters or two identical parameters at the same time. The new high-resolution four-color LC display simplifies the operation of the device and guides you through all the necessary settings and configuration steps with a clear full-text menu. The numerous calibration procedures are displayed to the user in plain text. In addition to German and English, you can also choose between French, Portuguese or Spanish and, in the future, other languages ​​including Asian languages. Predictive status displays The color-guided user guidance is used for the intuitive detection of sensor states. Different background colors of the display fields based on the NE107 status messages enable the detection of sensor states and device modes at a glance. For sensor monitoring, the tried and tested Sensoface indicates the need for maintenance of the sensor and can also be configured with a corresponding alarm message. As new graphic elements, the Stratos Multi also uses the standardized icons recommended in accordance with NE 107 for status messages such as maintenance required, failure, out of specification or function check. In addition to a CIP, SIP and autoclave counter and the above-mentioned display elements, the sensor network diagram now enables the sensors to be monitored. All relevant sensor data such as B. zero point, slope, idle times, calibration timer, impedance and response times for ph sensors are clearly displayed. In this way, the operator receives immediate information about the sensor status and remaining service life of the connected sensors. In addition, the stress matrix provides information as a new feature about the extreme values ​​to which the respective sensor was exposed. Does the matrix show that a probe e.g. B. has been heavily loaded by extreme pH and temperature values, the specified calibration intervals can be adjusted using the adaptive calibration timer. Diverse input and output options The model series, which is optionally equipped with 4-20 ma for Hart communication or with a Profinet or Ethernet / IP interface, has two analog current outputs that can be set actively or passively as required and optionally two additional ones Allow current outputs to be expanded. In addition, the transmitters are equipped with three relay outputs for configuration as alarm, limit value and washing contacts as well as pulse length or pulse frequency controllers. Two digital inputs enable the connection of a flow sensor, the external activation of the function control e.g. B. the hold function according to Namur recommendation NE107 as well as a parameter set switchover via the process control system. An additional current input is provided for the connection of a pressure sensor, which is required for pressure compensation for an exact determination of oxygen concentrations. In addition, the Stratos multi-transmitters use a new USB card concept, which greatly simplifies the handling of logged measured values ​​or the import of software updates. The transmitter is equipped with a card slot inside the housing for which USB cards with different functions are available. The data card serves as a regular memory card for recording measured values. Alternatively, the audit trail card ensures the seamless, tamper-proof recording of all measurement, sensor and device configuration data in accordance with FDA 21 CFR Part 11. Openings in the transmitter housing are also recorded without any gaps thanks to a protected frame contact. Various user levels with different, password-protected access can be set up on the Stratos Multi for authorized device access