Helical gearbox H3 flender sverige H3-VV-24B

Flender/Flender Gear Units/Helical gearbox H3

cus in this contextwas the verification aspect, the comparison with conventional reference methods The following trace substances were measured with the K3 COz CO, NO, ,, CH, and HCHO (formaldehyde) ,/ NO, and SO, could not be detected with the K3 The following comparisons with reference methods were performed - Comparison with canister sampling Three canisters were set up along 1 K3 measuring path The GC-evaluated canister results were compared with the K3 values The comparison took place in clean-air zone, in order to rule out spatial and temporal fluctuations of the trace gas concentrations The comparison was performed for the following substances C0, N2, CO and CH4 The relative deviations were c0 N2O co CH4 1 0 to 7 5% 4 5 to 2 5% 1 0 to 1 5% 3 5 to 6 5% - Measurements with the testvehicle alongside container of the Berlin Air Anal sis Network (BLUME) The comparison was conducted for the substances CO and NO Tte following three systems were compared BLUME analyser, K3 remote sensing system, and the conventional measuring instruments in the vehicle direct comparison of the individual 1 - __ __ __~_ ~ measurements of the three systems was difficult, because the measurements took place on very busy crossroads in Berlin and, thus, the spatial and temporal fluctuation of the concen- trations was very intense It was, however, established that all three systems inditated the same concentration range for COand N0,namelyvaluesfrom 9to8 ppbforNOandfrom0 6to2 1 ppmforCO In particular, it was also observed that the two conventional - and also officially approved - measuring instruments recorded very different individual values \ \ \ \ \ \ \ \ \ '\ \\ \\ \ \\ \\ \\ \ \\ \' \\ Fig 1 Principle of remote sensing measurement with the K3 Duration: 0 0 9 - 3 1 9 OlVQ9A Subject:Comparative measurements of road traffic immission in Berlin using the DIM diode laser system of the Humboldt University and the COMO system of the Battelle In