26-mar-12 12:35:00 Measurements ended --- . Number of lamps (L) = 7 . Filter running time = 66.08 hours . Total airflow this filter = 19.38 cubic meters . Mean BC concentration of all lamps = 78 ng/m3 . Report for lamp 1 (370 nm): . Ending voltages: sen(beam) = .297 sen(zero) = 0.021 . ref(beam) = 2.243 ref(zero) = 0.021 . Optical attenuation of filter deposit = 99 . Total aerosol black carbon on filter = 1253 ng Mean aerosol black carbon concentration = 64 ng/m3 --- The reference beam showed lamp intensity fluctuations of 42 ppm. --- Report for lamp 2 (470 nm): . Ending voltages: sen(beam) = .555 sen(zero) = 0.021 . ref(beam) = 2.451 ref(zero) = 0.021 . Optical attenuation of filter deposit = 87 . Total aerosol black carbon on filter = 1406 ng Mean aerosol black carbon concentration = 72 ng/m3 --- The reference beam showed lamp intensity fluctuations of 33 ppm. --- Report for lamp 3 (520 nm): . Ending voltages: sen(beam) = .404 sen(zero) = 0.021 . ref(beam) = 2.490 ref(zero) = 0.021 . Optical attenuation of filter deposit = 80 . Total aerosol black carbon on filter = 1436 ng Mean aerosol black carbon concentration = 74 ng/m3 --- The reference beam showed lamp intensity fluctuations of 33 ppm. --- Report for lamp 4 (590 nm): . Ending voltages: sen(beam) = .594 sen(zero) = 0.021 . ref(beam) = 1.252 ref(zero) = 0.021 . Optical attenuation of filter deposit = 75 . Total aerosol black carbon on filter = 1519 ng Mean aerosol black carbon concentration = 78 ng/m3 --- The reference beam showed lamp intensity fluctuations of 101 ppm. --- Report for lamp 5 (660 nm): . Ending voltages: sen(beam) = .783 sen(zero) = 0.021 . ref(beam) = 2.446 ref(zero) = 0.021 . Optical attenuation of filter deposit = 70 . Total aerosol black carbon on filter = 1577 ng Mean aerosol black carbon concentration = 81 ng/m3 --- The reference beam showed lamp intensity fluctuations of 65 ppm. --- Report for lamp 6 (880 nm): . Ending voltages: sen(beam) = .955 sen(zero) = 0.021 . ref(beam) = 3.569 ref(zero) = 0.021 . Optical attenuation of filter deposit = 58 . Total aerosol black carbon on filter = 1750 ng Mean aerosol black carbon concentration = 90 ng/m3 --- The reference beam showed lamp intensity fluctuations of 71 ppm. --- Report for lamp 7 (950 nm): . Ending voltages: sen(beam) = .790 sen(zero) = 0.021 . ref(beam) = 4.660 ref(zero) = 0.021 . Optical attenuation of filter deposit = 53 . Total aerosol black carbon on filter = 1739 ng Mean aerosol black carbon concentration = 89 ng/m3 --- The reference beam showed lamp intensity fluctuations of 70 ppm. --- Disk space = 2.859213E+07 bytes free: One entry at every 5 minutes. There is space for 6078 hours ( 253 days) more data --- 26-mar-12 12:35:00 Tape feeder mechanism advancing for 1 spot(s). --- ============================================================= --- MAGEE SCIEN. AETHALOMETER --- Aethalometer No. 463 --- 26-mar-12 12:49:54 Measurements started Starting voltages: . sen(zero) = 0.021 ref(zero) = 0.021 . Lamp 1 (370 nm): sen(beam) = .437 ref(beam) = 2.229 . Lamp 2 (470 nm): sen(beam) = .764 ref(beam) = 2.436 . Lamp 3 (520 nm): sen(beam) = .548 ref(beam) = 2.490 . Lamp 4 (590 nm): sen(beam) = .757 ref(beam) = 1.238 . Lamp 5 (660 nm): sen(beam) = .991 ref(beam) = 2.422 . Lamp 6 (880 nm): sen(beam) = 1.171 ref(beam) = 3.563 . Lamp 7 (950 nm): sen(beam) = .946 ref(beam) = 4.609 ---