On this site, you will find answers to the frequently asked questions (FAQ) with reference to the different programs and you will find tips to the general questions.

Under the "Downloads" section, you will find all issues of our customer based journal "Wasserstoff" published until today. On the left side, there are some useful programs e.g. WinZip, Adobe Acrobat readers, PowerPoint Viewer of Microsoft (that allows you to open PowerPoint presentations, without installing PowerPoint) available for you to download.

Customers, who do not have a servicing contract, can find a form under "support inquiry", in which they can describe the problem and request assistance.

If you want to calculate shortly for the circular section, you can do this comfortably directly in the Browser, with our collection of formulae .