23-dec-17 03:10:00 Measurements ended --- . Number of lamps (L) = 7 . Filter running time = 83.16 hours . Total airflow this filter = 10.95 cubic meters . Mean BC concentration of all lamps = 88 ng/vm3 . Report for lamp 1 (370 nm): . Ending voltages: sen(beam) = .934 sen(zero) = 0.021 . ref(beam) = 2.393 ref(zero) = 0.021 . Optical attenuation of filter deposit = 75 . Total aerosol black carbon on filter = 950 ng Mean aerosol black carbon concentration = 86 ng/vm3 --- The reference beam showed lamp intensity fluctuations of 672 ppm. --- Report for lamp 2 (470 nm): . Ending voltages: sen(beam) = .858 sen(zero) = 0.021 . ref(beam) = 2.587 ref(zero) = 0.021 . Optical attenuation of filter deposit = 61 . Total aerosol black carbon on filter = 990 ng Mean aerosol black carbon concentration = 90 ng/vm3 --- The reference beam showed lamp intensity fluctuations of 666 ppm. --- Report for lamp 3 (520 nm): . Ending voltages: sen(beam) = 1.161 sen(zero) = 0.021 . ref(beam) = 1.769 ref(zero) = 0.021 . Optical attenuation of filter deposit = 53 . Total aerosol black carbon on filter = 959 ng Mean aerosol black carbon concentration = 87 ng/vm3 --- The reference beam showed lamp intensity fluctuations of 735 ppm. --- Report for lamp 4 (590 nm): . Ending voltages: sen(beam) = .810 sen(zero) = 0.021 . ref(beam) = 2.289 ref(zero) = 0.021 . Optical attenuation of filter deposit = 48 . Total aerosol black carbon on filter = 977 ng Mean aerosol black carbon concentration = 89 ng/vm3 --- The reference beam showed lamp intensity fluctuations of 820 ppm. --- Report for lamp 5 (660 nm): . Ending voltages: sen(beam) = .334 sen(zero) = 0.021 . ref(beam) = .892 ref(zero) = 0.021 . Optical attenuation of filter deposit = 44 . Total aerosol black carbon on filter = 1002 ng Mean aerosol black carbon concentration = 91 ng/vm3 --- The reference beam showed lamp intensity fluctuations of 805 ppm. --- Report for lamp 6 (880 nm): . Ending voltages: sen(beam) = .635 sen(zero) = 0.021 . ref(beam) = 1.155 ref(zero) = 0.021 . Optical attenuation of filter deposit = 32 . Total aerosol black carbon on filter = 986 ng Mean aerosol black carbon concentration = 90 ng/vm3 --- The reference beam showed lamp intensity fluctuations of 884 ppm. --- Report for lamp 7 (950 nm): . Ending voltages: sen(beam) = 1.088 sen(zero) = 0.021 . ref(beam) = 1.198 ref(zero) = 0.021 . Optical attenuation of filter deposit = 29 . Total aerosol black carbon on filter = 950 ng Mean aerosol black carbon concentration = 86 ng/vm3 --- The reference beam showed lamp intensity fluctuations of 908 ppm. --- Disk space = 2.541281E+08 bytes free: One entry at every 10 minutes. There is space for 108048 hours ( 4502 days) more data --- 23-dec-17 03:10:00 Tape feeder mechanism advancing for 2 spot(s). --- ============================================================= --- MAGEE SCIEN. AETHALOMETER --- Aethalometer No. 360 --- 23-dec-17 03:29:54 Measurements started Starting voltages: . sen(zero) = 0.021 ref(zero) = 0.021 . Lamp 1 (370 nm): sen(beam) = 2.038 ref(beam) = 2.328 . Lamp 2 (470 nm): sen(beam) = 1.633 ref(beam) = 2.518 . Lamp 3 (520 nm): sen(beam) = 2.035 ref(beam) = 1.703 . Lamp 4 (590 nm): sen(beam) = 1.290 ref(beam) = 2.139 . Lamp 5 (660 nm): sen(beam) = .522 ref(beam) = .863 . Lamp 6 (880 nm): sen(beam) = .890 ref(beam) = 1.102 . Lamp 7 (950 nm): sen(beam) = 1.482 ref(beam) = 1.144 ---