Technical Support

(New) customer services from KRÜSS Messtechnik
When acquiring analytical instruments for the laboratory great care is taken to check that the techniques and methods actually do what they promise to do and how effectively a method can be used. How good the supplier’s technical support is and what is being offered are rarely checked before the investment has been made.
But this is exactly the point that is of crucial importance for the further life of the instrument – this is the opinion of Dipl.Ing. Dominik Hennemann who has been responsible for the technical support provided by KRÜSS GmbH since 1995: "During the working life of the instrument tasks continually arise that were not foreseen when the investment was made. Or circumstances change and necessitate further measures.
This means that it is vitally important to have a contact person who can satisfy all your requirements both from the technical side as well as supplying support for your applications.
So, before making any investments check the technical support that KRÜSS can offer you!

Apart from our top-quality phone-in support KRÜSS has successfully offered the following services for many years now:
· Support for IQ / OQ by service technicians on your premises
· Annual service visits
· Repair service (on site or in our Hamburg factory)

From this year on we can also offer warranty extensions. These are so to speak insurance policies that cover all repairs which may become necessary during the validity of the contract.
This service is offered in our direct marketing countries: Germany, Austria, Switzerland, France, Great Britain.

If you should have any questions about this or other services please contact Mr. Hennemann directly or one of his regional colleagues:

For Germany, Switzerland and Austria:
Dipl.Ing.(FH) Dominik Hennemann
Tel.: +49(40)514401-33
Fax: +49(40)514401-98
Email: service@kruss.de

For France, UK and Ireland:
Nick Hearn
Tel.: +33 (1) 60149403
Fax: +33 (1) 60149548
Email: nicholas.hearn@kruss.fr

For United States of America
Roger Tooker
Tel.: +1(704) +1 (704) 8478933
Fax: +1 (704) 8479416
Email: rdt@krussusa.com

The measurement of the surface tension by using the ring and plate method can be traced back to a national standard without any difficulty.
An important step is to check the force measuring system used with standards that can be traced back to national standards. This is generally carried out with weights certified by the DKD.
However, it is often forgotten that not only the force represents an important parameter for calculating the surface tension but also the shape of the plate or ring is equally important.

The "Wilhelmy equation" demonstrates this:

The force F which acts on the ring or plate is just as important as the wetted length l.

This fact has been taken into consideration by KRÜSS with the result that both rings and plates can now be ordered with a DKD certificate which
· documents that the ring or plate has the correct dimensions
· and uses these to determine the true wetted length.

The firmware and software of the K11 and K100 instruments allows the input of the shape or wetted length. This closes the gap which would otherwise exist for a proper shape certificate for the ring or plate.

If you have any further questions please contact Mr. Hennemann directly.

Dominik Hennemann, Technischer Support, KRÜSS GmbH
Phone: +49 (40) 51 44 01 - 33
Email: service@kruss.de
Web: www.kruss.de