13-jun-17 12:55:00 Measurements ended --- . Number of lamps (L) = 7 . Filter running time = 53.91 hours . Total airflow this filter = 6.3 cubic meters . Mean BC concentration of all lamps = 146 ng/vm3 . Report for lamp 1 (370 nm): . Ending voltages: sen(beam) = .694 sen(zero) = 0.021 . ref(beam) = 2.210 ref(zero) = 0.021 . Optical attenuation of filter deposit = 75 . Total aerosol black carbon on filter = 950 ng Mean aerosol black carbon concentration = 150 ng/vm3 --- The reference beam showed lamp intensity fluctuations of 166 ppm. --- Report for lamp 2 (470 nm): . Ending voltages: sen(beam) = .663 sen(zero) = 0.021 . ref(beam) = 2.449 ref(zero) = 0.021 . Optical attenuation of filter deposit = 61 . Total aerosol black carbon on filter = 981 ng Mean aerosol black carbon concentration = 155 ng/vm3 --- The reference beam showed lamp intensity fluctuations of 113 ppm. --- Report for lamp 3 (520 nm): . Ending voltages: sen(beam) = .885 sen(zero) = 0.021 . ref(beam) = 1.754 ref(zero) = 0.021 . Optical attenuation of filter deposit = 52 . Total aerosol black carbon on filter = 929 ng Mean aerosol black carbon concentration = 147 ng/vm3 --- The reference beam showed lamp intensity fluctuations of 122 ppm. --- Report for lamp 4 (590 nm): . Ending voltages: sen(beam) = .616 sen(zero) = 0.021 . ref(beam) = 2.223 ref(zero) = 0.021 . Optical attenuation of filter deposit = 45 . Total aerosol black carbon on filter = 923 ng Mean aerosol black carbon concentration = 146 ng/vm3 --- The reference beam showed lamp intensity fluctuations of 355 ppm. --- Report for lamp 5 (660 nm): . Ending voltages: sen(beam) = .277 sen(zero) = 0.021 . ref(beam) = .884 ref(zero) = 0.021 . Optical attenuation of filter deposit = 41 . Total aerosol black carbon on filter = 944 ng Mean aerosol black carbon concentration = 149 ng/vm3 --- The reference beam showed lamp intensity fluctuations of 197 ppm. --- Report for lamp 6 (880 nm): . Ending voltages: sen(beam) = .501 sen(zero) = 0.021 . ref(beam) = 1.140 ref(zero) = 0.021 . Optical attenuation of filter deposit = 29 . Total aerosol black carbon on filter = 886 ng Mean aerosol black carbon concentration = 140 ng/vm3 --- The reference beam showed lamp intensity fluctuations of 250 ppm. --- Report for lamp 7 (950 nm): . Ending voltages: sen(beam) = .856 sen(zero) = 0.021 . ref(beam) = 1.153 ref(zero) = 0.021 . Optical attenuation of filter deposit = 25 . Total aerosol black carbon on filter = 843 ng Mean aerosol black carbon concentration = 133 ng/vm3 --- The reference beam showed lamp intensity fluctuations of 272 ppm. --- Disk space = 2.552095E+08 bytes free: One entry at every 10 minutes. There is space for 108507 hours ( 4521 days) more data --- 13-jun-17 12:55:00 Tape feeder mechanism advancing for 2 spot(s). --- ============================================================= --- MAGEE SCIEN. AETHALOMETER --- Aethalometer No. 360 --- 13-jun-17 13:19:54 Measurements started Starting voltages: . sen(zero) = 0.021 ref(zero) = 0.021 . Lamp 1 (370 nm): sen(beam) = 1.422 ref(beam) = 2.184 . Lamp 2 (470 nm): sen(beam) = 1.202 ref(beam) = 2.498 . Lamp 3 (520 nm): sen(beam) = 1.501 ref(beam) = 1.711 . Lamp 4 (590 nm): sen(beam) = .944 ref(beam) = 2.096 . Lamp 5 (660 nm): sen(beam) = .409 ref(beam) = .902 . Lamp 6 (880 nm): sen(beam) = .659 ref(beam) = 1.095 . Lamp 7 (950 nm): sen(beam) = 1.092 ref(beam) = 1.131 ---