17-dec-18 22:10:00 Measurements ended --- . Number of lamps (L) = 7 . Filter running time = 132.5 hours . Total airflow this filter = 14.39 cubic meters . Mean BC concentration of all lamps = 61 ng/vm3 . Report for lamp 1 (370 nm): . Ending voltages: sen(beam) = .953 sen(zero) = 0.021 . ref(beam) = 2.260 ref(zero) = 0.021 . Optical attenuation of filter deposit = 75 . Total aerosol black carbon on filter = 950 ng Mean aerosol black carbon concentration = 66 ng/vm3 --- The reference beam showed lamp intensity fluctuations of 246 ppm. --- Report for lamp 2 (470 nm): . Ending voltages: sen(beam) = .912 sen(zero) = 0.021 . ref(beam) = 2.480 ref(zero) = 0.021 . Optical attenuation of filter deposit = 58 . Total aerosol black carbon on filter = 934 ng Mean aerosol black carbon concentration = 64 ng/vm3 --- The reference beam showed lamp intensity fluctuations of 81 ppm. --- Report for lamp 3 (520 nm): . Ending voltages: sen(beam) = 1.244 sen(zero) = 0.021 . ref(beam) = 1.657 ref(zero) = 0.021 . Optical attenuation of filter deposit = 49 . Total aerosol black carbon on filter = 872 ng Mean aerosol black carbon concentration = 60 ng/vm3 --- The reference beam showed lamp intensity fluctuations of 111 ppm. --- Report for lamp 4 (590 nm): . Ending voltages: sen(beam) = .803 sen(zero) = 0.021 . ref(beam) = 2.045 ref(zero) = 0.021 . Optical attenuation of filter deposit = 43 . Total aerosol black carbon on filter = 873 ng Mean aerosol black carbon concentration = 60 ng/vm3 --- The reference beam showed lamp intensity fluctuations of 644 ppm. --- Report for lamp 5 (660 nm): . Ending voltages: sen(beam) = .325 sen(zero) = 0.021 . ref(beam) = .771 ref(zero) = 0.021 . Optical attenuation of filter deposit = 39 . Total aerosol black carbon on filter = 889 ng Mean aerosol black carbon concentration = 61 ng/vm3 --- The reference beam showed lamp intensity fluctuations of 211 ppm. --- Report for lamp 6 (880 nm): . Ending voltages: sen(beam) = .656 sen(zero) = 0.021 . ref(beam) = 1.043 ref(zero) = 0.021 . Optical attenuation of filter deposit = 27 . Total aerosol black carbon on filter = 832 ng Mean aerosol black carbon concentration = 57 ng/vm3 --- The reference beam showed lamp intensity fluctuations of 336 ppm. --- Report for lamp 7 (950 nm): . Ending voltages: sen(beam) = 1.127 sen(zero) = 0.021 . ref(beam) = 1.086 ref(zero) = 0.021 . Optical attenuation of filter deposit = 24 . Total aerosol black carbon on filter = 791 ng Mean aerosol black carbon concentration = 55 ng/vm3 --- The reference beam showed lamp intensity fluctuations of 368 ppm. --- Disk space = 2.541445E+08 bytes free: One entry at every 10 minutes. There is space for 108055 hours ( 4502 days) more data --- 17-dec-18 22:10:00 Tape feeder mechanism advancing for 2 spot(s). --- ============================================================= --- MAGEE SCIEN. AETHALOMETER --- Aethalometer No. 360 --- 17-dec-18 22:29:54 Measurements started Starting voltages: . sen(zero) = 0.021 ref(zero) = 0.021 . Lamp 1 (370 nm): sen(beam) = 2.009 ref(beam) = 2.193 . Lamp 2 (470 nm): sen(beam) = 1.620 ref(beam) = 2.440 . Lamp 3 (520 nm): sen(beam) = 2.032 ref(beam) = 1.610 . Lamp 4 (590 nm): sen(beam) = 1.183 ref(beam) = 1.929 . Lamp 5 (660 nm): sen(beam) = .469 ref(beam) = .757 . Lamp 6 (880 nm): sen(beam) = .848 ref(beam) = 1.003 . Lamp 7 (950 nm): sen(beam) = 1.420 ref(beam) = 1.049 ---