M+W Zander builds particle cradle cabinet for the development of soot particle filters/all-electronic temperature and dampness regulation

Stuttgart, 7 April 2005. M+W Zander developed a special particle cradle cabinet (Particle Measurement Cabinet/PMC) for the automobile industry together with partners. It prevents disturbing influences on the soot particle measurements of diesel engines, which are caused by mechanical oscillations, temperature and humidity fluctuations. The cradle cabinet was already sold at several car manufacturers as well as suppliers. For the development and qualification of soot particle filters for diesel engines extensive series of measurements are necessary. Evaluating these measurements is made more difficult by mechanical oscillations as well as fluctuations of the temperature and the air humidity. The particle cradle cabinet developed by M+W Zander Products GmbH makes the site conditions available needed for the gravimetric measurements.That means: It provides for the oscillation uncoupling of the cradle system, for the temperature and dampness regulation and for keeping der Luftreinheitsklasse 5 (3,520 particles per cubic meter of air, with a particle size 0.5 millionth meter). Thus already today the conditions for standardized evaluations are manufactured, how they prescribe the legal defaults of the American environmental protection agency EPA (Environmental Protection Agency) starting from 2007 global. The particle cradle cabinet works in the circulating air principle. In the inside prevails a vertical, with low turbulences displacement current, which fulfills the requirements of the category of purity 5 in accordance with DIN EN ISO 14644-1. For regulating the Luftfreuchtigkeit and for keeping the positive pressure in the work area outside air is supplied and conditioned accordingly. The cradle place with granite block is decoupled of the housing, in order to avoid vibration transmissions.In the cradle cabinet a humidifier with a constantly adjustable humidification achievement is integrated. For the air humidification the system needs only untemperiertes city water in quality of drinking water. An automatic draining reduces a calcifying of humidifier components. Thus their life span increases, while maintenance costs are reduced. The two-stage humidifier concept ensures a continuous humidification also during the draining cycles. The cooling and/or dehumidifying of air effected via two integrated heat exchangers. A photo of the Partikewiegeschranks leaves itself under http://www.mw zander.com/de/press/press_logosfotos.htm herunterladen.