13-may-17 11:10:00 Measurements ended --- . Number of lamps (L) = 7 . Filter running time = 23.83 hours . Total airflow this filter = 2.5 cubic meters . Mean BC concentration of all lamps = 358 ng/vm3 . Report for lamp 1 (370 nm): . Ending voltages: sen(beam) = .655 sen(zero) = 0.021 . ref(beam) = 2.041 ref(zero) = 0.021 . Optical attenuation of filter deposit = 75 . Total aerosol black carbon on filter = 956 ng Mean aerosol black carbon concentration = 382 ng/vm3 --- The reference beam showed lamp intensity fluctuations of 266 ppm. --- Report for lamp 2 (470 nm): . Ending voltages: sen(beam) = .645 sen(zero) = 0.021 . ref(beam) = 2.352 ref(zero) = 0.021 . Optical attenuation of filter deposit = 58 . Total aerosol black carbon on filter = 948 ng Mean aerosol black carbon concentration = 379 ng/vm3 --- The reference beam showed lamp intensity fluctuations of 212 ppm. --- Report for lamp 3 (520 nm): . Ending voltages: sen(beam) = .883 sen(zero) = 0.021 . ref(beam) = 1.590 ref(zero) = 0.021 . Optical attenuation of filter deposit = 50 . Total aerosol black carbon on filter = 895 ng Mean aerosol black carbon concentration = 358 ng/vm3 --- The reference beam showed lamp intensity fluctuations of 238 ppm. --- Report for lamp 4 (590 nm): . Ending voltages: sen(beam) = .615 sen(zero) = 0.021 . ref(beam) = 2.018 ref(zero) = 0.021 . Optical attenuation of filter deposit = 44 . Total aerosol black carbon on filter = 890 ng Mean aerosol black carbon concentration = 356 ng/vm3 --- The reference beam showed lamp intensity fluctuations of 322 ppm. --- Report for lamp 5 (660 nm): . Ending voltages: sen(beam) = .275 sen(zero) = 0.021 . ref(beam) = .868 ref(zero) = 0.021 . Optical attenuation of filter deposit = 39 . Total aerosol black carbon on filter = 895 ng Mean aerosol black carbon concentration = 358 ng/vm3 --- The reference beam showed lamp intensity fluctuations of 270 ppm. --- Report for lamp 6 (880 nm): . Ending voltages: sen(beam) = .483 sen(zero) = 0.021 . ref(beam) = 1.032 ref(zero) = 0.021 . Optical attenuation of filter deposit = 28 . Total aerosol black carbon on filter = 863 ng Mean aerosol black carbon concentration = 345 ng/vm3 --- The reference beam showed lamp intensity fluctuations of 271 ppm. --- Report for lamp 7 (950 nm): . Ending voltages: sen(beam) = .825 sen(zero) = 0.021 . ref(beam) = 1.073 ref(zero) = 0.021 . Optical attenuation of filter deposit = 25 . Total aerosol black carbon on filter = 826 ng Mean aerosol black carbon concentration = 330 ng/vm3 --- The reference beam showed lamp intensity fluctuations of 309 ppm. --- Disk space = 2.553774E+08 bytes free: One entry at every 10 minutes. There is space for 108579 hours ( 4524 days) more data --- 13-may-17 11:10:00 Tape feeder mechanism advancing for 2 spot(s). --- ============================================================= --- MAGEE SCIEN. AETHALOMETER --- Aethalometer No. 360 --- 13-may-17 11:29:54 Measurements started Starting voltages: . sen(zero) = 0.021 ref(zero) = 0.021 . Lamp 1 (370 nm): sen(beam) = 1.325 ref(beam) = 2.081 . Lamp 2 (470 nm): sen(beam) = 1.124 ref(beam) = 2.409 . Lamp 3 (520 nm): sen(beam) = 1.423 ref(beam) = 1.640 . Lamp 4 (590 nm): sen(beam) = .902 ref(beam) = 1.994 . Lamp 5 (660 nm): sen(beam) = .390 ref(beam) = .885 . Lamp 6 (880 nm): sen(beam) = .620 ref(beam) = 1.049 . Lamp 7 (950 nm): sen(beam) = 1.021 ref(beam) = 1.093 ---