15-jul-17 17:45:00 Measurements ended --- . Number of lamps (L) = 7 . Filter running time = 20.58 hours . Total airflow this filter = 2.28 cubic meters . Mean BC concentration of all lamps = 354 ng/vm3 . Report for lamp 1 (370 nm): . Ending voltages: sen(beam) = .675 sen(zero) = 0.021 . ref(beam) = 2.145 ref(zero) = 0.021 . Optical attenuation of filter deposit = 75 . Total aerosol black carbon on filter = 950 ng Mean aerosol black carbon concentration = 418 ng/vm3 --- The reference beam showed lamp intensity fluctuations of 243 ppm. --- Report for lamp 2 (470 nm): . Ending voltages: sen(beam) = .675 sen(zero) = 0.021 . ref(beam) = 2.397 ref(zero) = 0.021 . Optical attenuation of filter deposit = 55 . Total aerosol black carbon on filter = 891 ng Mean aerosol black carbon concentration = 392 ng/vm3 --- The reference beam showed lamp intensity fluctuations of 122 ppm. --- Report for lamp 3 (520 nm): . Ending voltages: sen(beam) = .916 sen(zero) = 0.021 . ref(beam) = 1.651 ref(zero) = 0.021 . Optical attenuation of filter deposit = 45 . Total aerosol black carbon on filter = 816 ng Mean aerosol black carbon concentration = 359 ng/vm3 --- The reference beam showed lamp intensity fluctuations of 113 ppm. --- Report for lamp 4 (590 nm): . Ending voltages: sen(beam) = .655 sen(zero) = 0.021 . ref(beam) = 2.087 ref(zero) = 0.021 . Optical attenuation of filter deposit = 38 . Total aerosol black carbon on filter = 784 ng Mean aerosol black carbon concentration = 345 ng/vm3 --- The reference beam showed lamp intensity fluctuations of 538 ppm. --- Report for lamp 5 (660 nm): . Ending voltages: sen(beam) = .283 sen(zero) = 0.021 . ref(beam) = .847 ref(zero) = 0.021 . Optical attenuation of filter deposit = 34 . Total aerosol black carbon on filter = 780 ng Mean aerosol black carbon concentration = 343 ng/vm3 --- The reference beam showed lamp intensity fluctuations of 245 ppm. --- Report for lamp 6 (880 nm): . Ending voltages: sen(beam) = .493 sen(zero) = 0.021 . ref(beam) = 1.056 ref(zero) = 0.021 . Optical attenuation of filter deposit = 24 . Total aerosol black carbon on filter = 729 ng Mean aerosol black carbon concentration = 320 ng/vm3 --- The reference beam showed lamp intensity fluctuations of 325 ppm. --- Report for lamp 7 (950 nm): . Ending voltages: sen(beam) = .834 sen(zero) = 0.021 . ref(beam) = 1.083 ref(zero) = 0.021 . Optical attenuation of filter deposit = 21 . Total aerosol black carbon on filter = 694 ng Mean aerosol black carbon concentration = 305 ng/vm3 --- The reference beam showed lamp intensity fluctuations of 378 ppm. --- Disk space = 2.540544E+08 bytes free: One entry at every 10 minutes. There is space for 108016 hours ( 4501 days) more data --- 15-jul-17 17:45:00 Tape feeder mechanism advancing for 2 spot(s). --- ============================================================= --- MAGEE SCIEN. AETHALOMETER --- Aethalometer No. 360 --- 15-jul-17 18:09:54 Measurements started Starting voltages: . sen(zero) = 0.021 ref(zero) = 0.021 . Lamp 1 (370 nm): sen(beam) = 1.432 ref(beam) = 2.095 . Lamp 2 (470 nm): sen(beam) = 1.190 ref(beam) = 2.346 . Lamp 3 (520 nm): sen(beam) = 1.474 ref(beam) = 1.606 . Lamp 4 (590 nm): sen(beam) = .941 ref(beam) = 1.968 . Lamp 5 (660 nm): sen(beam) = .398 ref(beam) = .828 . Lamp 6 (880 nm): sen(beam) = .631 ref(beam) = 1.019 . Lamp 7 (950 nm): sen(beam) = 1.042 ref(beam) = 1.052 ---