16-jul-17 10:05:00 Measurements ended --- . Number of lamps (L) = 7 . Filter running time = 15.91 hours . Total airflow this filter = 1.76 cubic meters . Mean BC concentration of all lamps = 467 ng/vm3 . Report for lamp 1 (370 nm): . Ending voltages: sen(beam) = .701 sen(zero) = 0.021 . ref(beam) = 2.149 ref(zero) = 0.021 . Optical attenuation of filter deposit = 75 . Total aerosol black carbon on filter = 950 ng Mean aerosol black carbon concentration = 540 ng/vm3 --- The reference beam showed lamp intensity fluctuations of 148 ppm. --- Report for lamp 2 (470 nm): . Ending voltages: sen(beam) = .697 sen(zero) = 0.021 . ref(beam) = 2.365 ref(zero) = 0.021 . Optical attenuation of filter deposit = 55 . Total aerosol black carbon on filter = 888 ng Mean aerosol black carbon concentration = 505 ng/vm3 --- The reference beam showed lamp intensity fluctuations of 64 ppm. --- Report for lamp 3 (520 nm): . Ending voltages: sen(beam) = .938 sen(zero) = 0.021 . ref(beam) = 1.615 ref(zero) = 0.021 . Optical attenuation of filter deposit = 46 . Total aerosol black carbon on filter = 823 ng Mean aerosol black carbon concentration = 469 ng/vm3 --- The reference beam showed lamp intensity fluctuations of 75 ppm. --- Report for lamp 4 (590 nm): . Ending voltages: sen(beam) = .685 sen(zero) = 0.021 . ref(beam) = 2.115 ref(zero) = 0.021 . Optical attenuation of filter deposit = 39 . Total aerosol black carbon on filter = 805 ng Mean aerosol black carbon concentration = 458 ng/vm3 --- The reference beam showed lamp intensity fluctuations of 454 ppm. --- Report for lamp 5 (660 nm): . Ending voltages: sen(beam) = .290 sen(zero) = 0.021 . ref(beam) = .842 ref(zero) = 0.021 . Optical attenuation of filter deposit = 35 . Total aerosol black carbon on filter = 799 ng Mean aerosol black carbon concentration = 455 ng/vm3 --- The reference beam showed lamp intensity fluctuations of 174 ppm. --- Report for lamp 6 (880 nm): . Ending voltages: sen(beam) = .507 sen(zero) = 0.021 . ref(beam) = 1.044 ref(zero) = 0.021 . Optical attenuation of filter deposit = 25 . Total aerosol black carbon on filter = 755 ng Mean aerosol black carbon concentration = 430 ng/vm3 --- The reference beam showed lamp intensity fluctuations of 225 ppm. --- Report for lamp 7 (950 nm): . Ending voltages: sen(beam) = .863 sen(zero) = 0.021 . ref(beam) = 1.083 ref(zero) = 0.021 . Optical attenuation of filter deposit = 22 . Total aerosol black carbon on filter = 719 ng Mean aerosol black carbon concentration = 409 ng/vm3 --- The reference beam showed lamp intensity fluctuations of 269 ppm. --- Disk space = 2.539971E+08 bytes free: One entry at every 10 minutes. There is space for 107992 hours ( 4500 days) more data --- 16-jul-17 10:05:00 Tape feeder mechanism advancing for 2 spot(s). --- ============================================================= --- MAGEE SCIEN. AETHALOMETER --- Aethalometer No. 360 --- 16-jul-17 10:29:54 Measurements started Starting voltages: . sen(zero) = 0.021 ref(zero) = 0.021 . Lamp 1 (370 nm): sen(beam) = 1.413 ref(beam) = 2.122 . Lamp 2 (470 nm): sen(beam) = 1.158 ref(beam) = 2.383 . Lamp 3 (520 nm): sen(beam) = 1.438 ref(beam) = 1.655 . Lamp 4 (590 nm): sen(beam) = .954 ref(beam) = 2.080 . Lamp 5 (660 nm): sen(beam) = .393 ref(beam) = .850 . Lamp 6 (880 nm): sen(beam) = .621 ref(beam) = 1.063 . Lamp 7 (950 nm): sen(beam) = 1.025 ref(beam) = 1.092 ---