19-jun-19 01:05:00 Measurements ended --- . Number of lamps (L) = 7 . Filter running time = 88.91 hours . Total airflow this filter = 9.5 cubic meters . Mean BC concentration of all lamps = 89 ng/vm3 . Report for lamp 1 (370 nm): . Ending voltages: sen(beam) = .949 sen(zero) = 0.021 . ref(beam) = 2.356 ref(zero) = 0.021 . Optical attenuation of filter deposit = 75 . Total aerosol black carbon on filter = 949 ng Mean aerosol black carbon concentration = 99 ng/vm3 --- The reference beam showed lamp intensity fluctuations of 228 ppm. --- Report for lamp 2 (470 nm): . Ending voltages: sen(beam) = .862 sen(zero) = 0.021 . ref(beam) = 2.492 ref(zero) = 0.021 . Optical attenuation of filter deposit = 57 . Total aerosol black carbon on filter = 924 ng Mean aerosol black carbon concentration = 97 ng/vm3 --- The reference beam showed lamp intensity fluctuations of 166 ppm. --- Report for lamp 3 (520 nm): . Ending voltages: sen(beam) = 1.232 sen(zero) = 0.021 . ref(beam) = 1.753 ref(zero) = 0.021 . Optical attenuation of filter deposit = 48 . Total aerosol black carbon on filter = 856 ng Mean aerosol black carbon concentration = 90 ng/vm3 --- The reference beam showed lamp intensity fluctuations of 199 ppm. --- Report for lamp 4 (590 nm): . Ending voltages: sen(beam) = .875 sen(zero) = 0.021 . ref(beam) = 2.323 ref(zero) = 0.021 . Optical attenuation of filter deposit = 41 . Total aerosol black carbon on filter = 834 ng Mean aerosol black carbon concentration = 87 ng/vm3 --- The reference beam showed lamp intensity fluctuations of 385 ppm. --- Report for lamp 5 (660 nm): . Ending voltages: sen(beam) = .320 sen(zero) = 0.021 . ref(beam) = .778 ref(zero) = 0.021 . Optical attenuation of filter deposit = 37 . Total aerosol black carbon on filter = 836 ng Mean aerosol black carbon concentration = 88 ng/vm3 --- The reference beam showed lamp intensity fluctuations of 255 ppm. --- Report for lamp 6 (880 nm): . Ending voltages: sen(beam) = .677 sen(zero) = 0.021 . ref(beam) = 1.135 ref(zero) = 0.021 . Optical attenuation of filter deposit = 25 . Total aerosol black carbon on filter = 780 ng Mean aerosol black carbon concentration = 82 ng/vm3 --- The reference beam showed lamp intensity fluctuations of 308 ppm. --- Report for lamp 7 (950 nm): . Ending voltages: sen(beam) = 1.175 sen(zero) = 0.021 . ref(beam) = 1.188 ref(zero) = 0.021 . Optical attenuation of filter deposit = 22 . Total aerosol black carbon on filter = 744 ng Mean aerosol black carbon concentration = 78 ng/vm3 --- The reference beam showed lamp intensity fluctuations of 345 ppm. --- Disk space = 2.539725E+08 bytes free: One entry at every 10 minutes. There is space for 107981 hours ( 4499 days) more data --- 19-jun-19 01:05:00 Tape feeder mechanism advancing for 2 spot(s). --- ============================================================= --- MAGEE SCIEN. AETHALOMETER --- Aethalometer No. 360 --- 19-jun-19 01:29:54 Measurements started Starting voltages: . sen(zero) = 0.021 ref(zero) = 0.021 . Lamp 1 (370 nm): sen(beam) = 2.039 ref(beam) = 2.376 . Lamp 2 (470 nm): sen(beam) = 1.559 ref(beam) = 2.557 . Lamp 3 (520 nm): sen(beam) = 2.054 ref(beam) = 1.775 . Lamp 4 (590 nm): sen(beam) = 1.317 ref(beam) = 2.281 . Lamp 5 (660 nm): sen(beam) = .467 ref(beam) = .799 . Lamp 6 (880 nm): sen(beam) = .892 ref(beam) = 1.143 . Lamp 7 (950 nm): sen(beam) = 1.499 ref(beam) = 1.199 ---