The correct answer is 25 hours.

We wish him always best insight with his new fine stereo microscope and its long-lasting battery!

No, don’t worry… we’re just counting every item. The annual stocktaking.
 

That’s what we thought when we were offered to buy back this spectrophotometer (Kirchhoff-Bunsen principle). The estimated year of manufacture is 1908. After more than 100 years of duty, the spectrophotometer is now retired and allowed to spend the rest of its days safe and sound in a glass cabinet in our Krüss museum.

If you feel like, browse a bit through our company’s history.

We’d really appreciate it, when you use it while telling others about our fine gemmology products!

Q: … But how do I type it?

A: … That’s easy!

In Windows, combinations of the ALT key plus a numeric code can be used to type a non-English character (accented letter or punctuation symbol) in any Windows application.

So in Windows you can simply use codes:
Typing Alt+0220 gives the capital “Ü”
typing ALT+0252 gives the small “ü”.

Generally useful:
The Windows Character Map (charmap.exe) shows the codes for characters.

In Mac OS X you can do the following:
Make sure you have the option “Show Keyboard & Character Viewer in menu bar” checked.
Select “Show/Hide Character Viewer” from the menu bar.
Select “Accented Latin” from the category list.
Select the desired character. (A double click on the character will insert it into the current application).
You can add often used characters as your favorites.

Or try hitting “Alt-U”, then the character you want.

Thank you for trying
and keeping Krüss as it’s supposed to be!

Read more about the history of A.KRÜSS Optronic.

Ranging from low-cost compact models for general usage, to professional expandable devices for more challenging applications, our microscopes serve any purpose.

We are glad to offer this improvement of service to our clients. You should benefit from our long lasting expert knowledge and the quality of our instruments!

Spotlight on our sturdy, robust ‘speedway star’, the KRÜSS DR101-60, testing methanol at the speedway league ‘Elitserien’ in Vetlanda, Sweden. Measurement is done by calibrating the device with methanol instead of water. Any contamination of methanol will be shown as an increase of the refractive index.

Conny Samuelsson (FIM/SVEMO) took the probes. He was an active speedracer during 1968-1985 and vice world champion in Inzell, 1977.

We thank Bjoern Schumann (Otmar Knebel GmbH) for the report and photos.

With a courageous attitude our caretaker doesn’t hesitate to dress down and saves Krüss company from drowning. A heroic and necessary act given the masses of water and hail pouring over Hamburg at the 7th of June.

But there’s good news: The team, the building und all instruments remained dry and safe.

Thank you, Mr. Tiedemann!