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Learning c changes What was the difference again between standard and working volumeflow? Or how are draughts in offices assessed? If you need the answers to the above questions, just give us a call.We will do our best to help you.

We owe Testo alot

Mr. Schleeh and his team are not only loyal Testo customers, theyalso attend seminars on air conditioning and ventilation engineering at Testo on a regular basis. Mr. Schleeh, what developments do you see in air conditioningengineering? Inter -l laboratory t tests Three precision probes were tested in extensive inter-laboratory tests at the PTB in Berlin, NIST in the USA, in the French National Institute CETIAT, the Italian national institute IMGC, the English national insti- tute NPL, the Spanish national institute INTA, at JQA in Japan, KRISS in Korea, NRCCRM in Peking and in the Testo DKD calibration labora- tory. The results measured confirm a probe accuracy of ±1 %RH asspecified by Testo. In the EU, there is a strong trend towards air conditioning in rooms,particularly in Southern European countries but also in Germany. In particular, split systems, decentralised systems for partial air condi- tioning in which an outside unit is combined with one or more inside units, are on the increase. The technical development is clearly tar-geting at a high efficiency level using intelligent system and regula-tion concepts. What significance does measurement engineering have in your sec-tor? In order to be able to ideally adjust air conditioning and ventilation systems, we have to know numerous parameters and adjust them to each other. Without the proper measuring instruments and the know-how as to how to measure, it would simply be impossible. What keeps you loyal to Testo? The right instrument for every measurement job in air conditioning and ventilation engineering. I do not know any other company withsuch a comparable complete and well thought-through range ofproducts for our sector. You could nearly believe that the Testo developers watch us everyday when we are measuring. For exam- ple, the SoftCase protection case with magnetic holder so that I can attach my meter to the system and have my hands free to guide the probe and make adjustments.Service is also first-class. With the few defects we experienced overthe years, we always received help straightaway. When we had to send in an instrument, a replacement instrument was immediately made available to us. In your sector you could be referred to as an “old hat”, why are youstill attending seminars at Testo? Even old hats have to keep up-to-date. I have to pay attention to new developments in measurement engineering and new technicalrules and legal stipulations about which I want to be informed. Ialways choose the aspects which I consider important. The same applies to my colleagues. What would you write for Testo in the register? Good instruments, good service, a lot of know-how. We owe Testo a lot. Wolfgang Schleeh, Head of Commissioning atM+W Zander FacilityEngineering GmbH