13-nov-18 20:40:00 Measurements ended --- . Number of lamps (L) = 7 . Filter running time = 154 hours . Total airflow this filter = 17.43 cubic meters . Mean BC concentration of all lamps = 48 ng/vm3 . Report for lamp 1 (370 nm): . Ending voltages: sen(beam) = .932 sen(zero) = 0.021 . ref(beam) = 2.203 ref(zero) = 0.021 . Optical attenuation of filter deposit = 75 . Total aerosol black carbon on filter = 950 ng Mean aerosol black carbon concentration = 54 ng/vm3 --- The reference beam showed lamp intensity fluctuations of 200 ppm. --- Report for lamp 2 (470 nm): . Ending voltages: sen(beam) = .914 sen(zero) = 0.021 . ref(beam) = 2.432 ref(zero) = 0.021 . Optical attenuation of filter deposit = 56 . Total aerosol black carbon on filter = 903 ng Mean aerosol black carbon concentration = 51 ng/vm3 --- The reference beam showed lamp intensity fluctuations of 74 ppm. --- Report for lamp 3 (520 nm): . Ending voltages: sen(beam) = 1.240 sen(zero) = 0.021 . ref(beam) = 1.625 ref(zero) = 0.021 . Optical attenuation of filter deposit = 46 . Total aerosol black carbon on filter = 836 ng Mean aerosol black carbon concentration = 47 ng/vm3 --- The reference beam showed lamp intensity fluctuations of 94 ppm. --- Report for lamp 4 (590 nm): . Ending voltages: sen(beam) = .813 sen(zero) = 0.021 . ref(beam) = 2.025 ref(zero) = 0.021 . Optical attenuation of filter deposit = 40 . Total aerosol black carbon on filter = 824 ng Mean aerosol black carbon concentration = 47 ng/vm3 --- The reference beam showed lamp intensity fluctuations of 527 ppm. --- Report for lamp 5 (660 nm): . Ending voltages: sen(beam) = .327 sen(zero) = 0.021 . ref(beam) = .762 ref(zero) = 0.021 . Optical attenuation of filter deposit = 37 . Total aerosol black carbon on filter = 834 ng Mean aerosol black carbon concentration = 47 ng/vm3 --- The reference beam showed lamp intensity fluctuations of 182 ppm. --- Report for lamp 6 (880 nm): . Ending voltages: sen(beam) = .650 sen(zero) = 0.021 . ref(beam) = 1.028 ref(zero) = 0.021 . Optical attenuation of filter deposit = 25 . Total aerosol black carbon on filter = 780 ng Mean aerosol black carbon concentration = 44 ng/vm3 --- The reference beam showed lamp intensity fluctuations of 279 ppm. --- Report for lamp 7 (950 nm): . Ending voltages: sen(beam) = 1.119 sen(zero) = 0.021 . ref(beam) = 1.074 ref(zero) = 0.021 . Optical attenuation of filter deposit = 22 . Total aerosol black carbon on filter = 744 ng Mean aerosol black carbon concentration = 42 ng/vm3 --- The reference beam showed lamp intensity fluctuations of 310 ppm. --- Disk space = 2.541445E+08 bytes free: One entry at every 10 minutes. There is space for 108055 hours ( 4502 days) more data --- 13-nov-18 20:40:00 Tape feeder mechanism advancing for 2 spot(s). --- ============================================================= --- MAGEE SCIEN. AETHALOMETER --- Aethalometer No. 360 --- 13-nov-18 20:59:54 Measurements started Starting voltages: . sen(zero) = 0.021 ref(zero) = 0.021 . Lamp 1 (370 nm): sen(beam) = 1.940 ref(beam) = 2.195 . Lamp 2 (470 nm): sen(beam) = 1.580 ref(beam) = 2.453 . Lamp 3 (520 nm): sen(beam) = 1.968 ref(beam) = 1.622 . Lamp 4 (590 nm): sen(beam) = 1.158 ref(beam) = 1.966 . Lamp 5 (660 nm): sen(beam) = .458 ref(beam) = .768 . Lamp 6 (880 nm): sen(beam) = .826 ref(beam) = 1.018 . Lamp 7 (950 nm): sen(beam) = 1.384 ref(beam) = 1.067 ---