23-jun-17 11:25:00 Measurements ended --- . Number of lamps (L) = 7 . Filter running time = 24.75 hours . Total airflow this filter = 2.83 cubic meters . Mean BC concentration of all lamps = 289 ng/vm3 . Report for lamp 1 (370 nm): . Ending voltages: sen(beam) = .620 sen(zero) = 0.021 . ref(beam) = 2.127 ref(zero) = 0.021 . Optical attenuation of filter deposit = 75 . Total aerosol black carbon on filter = 952 ng Mean aerosol black carbon concentration = 336 ng/vm3 --- The reference beam showed lamp intensity fluctuations of 220 ppm. --- Report for lamp 2 (470 nm): . Ending voltages: sen(beam) = .626 sen(zero) = 0.021 . ref(beam) = 2.405 ref(zero) = 0.021 . Optical attenuation of filter deposit = 56 . Total aerosol black carbon on filter = 914 ng Mean aerosol black carbon concentration = 323 ng/vm3 --- The reference beam showed lamp intensity fluctuations of 135 ppm. --- Report for lamp 3 (520 nm): . Ending voltages: sen(beam) = .859 sen(zero) = 0.021 . ref(beam) = 1.661 ref(zero) = 0.021 . Optical attenuation of filter deposit = 47 . Total aerosol black carbon on filter = 842 ng Mean aerosol black carbon concentration = 297 ng/vm3 --- The reference beam showed lamp intensity fluctuations of 133 ppm. --- Report for lamp 4 (590 nm): . Ending voltages: sen(beam) = .626 sen(zero) = 0.021 . ref(beam) = 2.163 ref(zero) = 0.021 . Optical attenuation of filter deposit = 39 . Total aerosol black carbon on filter = 800 ng Mean aerosol black carbon concentration = 283 ng/vm3 --- The reference beam showed lamp intensity fluctuations of 538 ppm. --- Report for lamp 5 (660 nm): . Ending voltages: sen(beam) = .274 sen(zero) = 0.021 . ref(beam) = .881 ref(zero) = 0.021 . Optical attenuation of filter deposit = 35 . Total aerosol black carbon on filter = 792 ng Mean aerosol black carbon concentration = 280 ng/vm3 --- The reference beam showed lamp intensity fluctuations of 271 ppm. --- Report for lamp 6 (880 nm): . Ending voltages: sen(beam) = .489 sen(zero) = 0.021 . ref(beam) = 1.088 ref(zero) = 0.021 . Optical attenuation of filter deposit = 24 . Total aerosol black carbon on filter = 736 ng Mean aerosol black carbon concentration = 260 ng/vm3 --- The reference beam showed lamp intensity fluctuations of 322 ppm. --- Report for lamp 7 (950 nm): . Ending voltages: sen(beam) = .832 sen(zero) = 0.021 . ref(beam) = 1.125 ref(zero) = 0.021 . Optical attenuation of filter deposit = 21 . Total aerosol black carbon on filter = 698 ng Mean aerosol black carbon concentration = 246 ng/vm3 --- The reference beam showed lamp intensity fluctuations of 368 ppm. --- Disk space = 2.545418E+08 bytes free: One entry at every 10 minutes. There is space for 108224 hours ( 4509 days) more data --- 23-jun-17 11:25:00 Tape feeder mechanism advancing for 2 spot(s). --- ============================================================= --- MAGEE SCIEN. AETHALOMETER --- Aethalometer No. 360 --- 23-jun-17 11:49:54 Measurements started Starting voltages: . sen(zero) = 0.021 ref(zero) = 0.021 . Lamp 1 (370 nm): sen(beam) = 1.382 ref(beam) = 2.112 . Lamp 2 (470 nm): sen(beam) = 1.160 ref(beam) = 2.415 . Lamp 3 (520 nm): sen(beam) = 1.450 ref(beam) = 1.664 . Lamp 4 (590 nm): sen(beam) = .937 ref(beam) = 2.089 . Lamp 5 (660 nm): sen(beam) = .399 ref(beam) = .879 . Lamp 6 (880 nm): sen(beam) = .645 ref(beam) = 1.078 . Lamp 7 (950 nm): sen(beam) = 1.067 ref(beam) = 1.108 ---