Bevel-helical speed reducers B2 iew tables Technical specifications continued The B2-CV-8-D

Flender/Flender Gear Units/Bevel-helical speed reducers B2

meter is equipped with an external, PC-supported data system. This allows not only automatic measuring procedures to be started and monitored, but also detailed dia- gnoses and checks of the mass ectrometer system to be performed. Data system and mass several hundred metres can be bridged. This results in high degree of flexibility in the sekc- tion of measuring and evaluation sites in poorly accessible industrial plants. Although the mass spectrometer was optimised for the measurement of 0 cyclic aromatic hydrocarbons (PAHs) during development, problems still arise with less vohk PAHs. The ini- tialassum tion thatthesignaldelayobservedwasattributabletothemembrane inthesample inlet and tiat the problem couldthus beeradicated by modification ofthemembranearrange- ment could not be confirmed after extensive investigations. Therefore, on the one hand, the tried-and-tested membrane at the sample inlet can be retained, but, on the other hand, fur- ther stage in development is necessary, involving considerable research work. spectrometer are interconnecte 8. via high ' . speed serial data link,with which distances of to 1 Duration: 0 0 8 - 3.1 9 OlVQ8 Subject: Collaborative project. Measurement of polycyclic aromatic compounds - Sub-project Photoelectric aerosol sensor for remote monitoring of pollutants Research centre: Gossen GmbH Naegelsbachstrasse 2,9 Erlangen Government sponsorship: DM 1,5,6 0 Sponsorship ratio: 5 Yo 1. Purpose of the project The overall objective of the project was the develo ment of experimental instruments for ghotoelectric aerosol sensor "PAS", to allow direct gtection of polycyclic aromatic hydrocar- ons (PAHs) on combustion aerosols from small to mediumsized furnaces and industrial processes. The simplest version of the sensor is to provide weighted aggregate signal of these pollutants,someofwhicharetoxicandcarcinogenic.Anefficientmeasuringandanal sis method can thus be made available for the introduction of mea