24-dec-11 17:00:00 Measurements ended --- . Number of lamps (L) = 7 . Filter running time = 85.41 hours . Total airflow this filter = 25.05 cubic meters . Mean BC concentration of all lamps = 55 ng/m3 . Report for lamp 1 (370 nm): . Ending voltages: sen(beam) = .495 sen(zero) = 0.021 . ref(beam) = 2.228 ref(zero) = 0.021 . Optical attenuation of filter deposit = 99 . Total aerosol black carbon on filter = 1253 ng Mean aerosol black carbon concentration = 50 ng/m3 --- The reference beam showed lamp intensity fluctuations of 43 ppm. --- Report for lamp 2 (470 nm): . Ending voltages: sen(beam) = .912 sen(zero) = 0.021 . ref(beam) = 2.436 ref(zero) = 0.021 . Optical attenuation of filter deposit = 83 . Total aerosol black carbon on filter = 1341 ng Mean aerosol black carbon concentration = 53 ng/m3 --- The reference beam showed lamp intensity fluctuations of 34 ppm. --- Report for lamp 3 (520 nm): . Ending voltages: sen(beam) = .661 sen(zero) = 0.021 . ref(beam) = 2.488 ref(zero) = 0.021 . Optical attenuation of filter deposit = 75 . Total aerosol black carbon on filter = 1338 ng Mean aerosol black carbon concentration = 53 ng/m3 --- The reference beam showed lamp intensity fluctuations of 32 ppm. --- Report for lamp 4 (590 nm): . Ending voltages: sen(beam) = .965 sen(zero) = 0.021 . ref(beam) = 1.256 ref(zero) = 0.021 . Optical attenuation of filter deposit = 68 . Total aerosol black carbon on filter = 1379 ng Mean aerosol black carbon concentration = 55 ng/m3 --- The reference beam showed lamp intensity fluctuations of 107 ppm. --- Report for lamp 5 (660 nm): . Ending voltages: sen(beam) = 1.291 sen(zero) = 0.021 . ref(beam) = 2.444 ref(zero) = 0.021 . Optical attenuation of filter deposit = 63 . Total aerosol black carbon on filter = 1430 ng Mean aerosol black carbon concentration = 57 ng/m3 --- The reference beam showed lamp intensity fluctuations of 66 ppm. --- Report for lamp 6 (880 nm): . Ending voltages: sen(beam) = 1.415 sen(zero) = 0.021 . ref(beam) = 3.570 ref(zero) = 0.021 . Optical attenuation of filter deposit = 50 . Total aerosol black carbon on filter = 1507 ng Mean aerosol black carbon concentration = 60 ng/m3 --- The reference beam showed lamp intensity fluctuations of 73 ppm. --- Report for lamp 7 (950 nm): . Ending voltages: sen(beam) = 1.152 sen(zero) = 0.021 . ref(beam) = 4.657 ref(zero) = 0.021 . Optical attenuation of filter deposit = 45 . Total aerosol black carbon on filter = 1484 ng Mean aerosol black carbon concentration = 59 ng/m3 --- The reference beam showed lamp intensity fluctuations of 72 ppm. --- Disk space = 1.525248E+07 bytes free: One entry at every 5 minutes. There is space for 3242 hours ( 135 days) more data --- 24-dec-11 17:00:00 Tape feeder mechanism advancing for 1 spot(s). --- ============================================================= --- MAGEE SCIEN. AETHALOMETER --- Aethalometer No. 463 --- 24-dec-11 17:14:54 Measurements started Starting voltages: . sen(zero) = 0.021 ref(zero) = 0.021 . Lamp 1 (370 nm): sen(beam) = 1.244 ref(beam) = 2.197 . Lamp 2 (470 nm): sen(beam) = 2.022 ref(beam) = 2.423 . Lamp 3 (520 nm): sen(beam) = 1.342 ref(beam) = 2.479 . Lamp 4 (590 nm): sen(beam) = 1.830 ref(beam) = 1.242 . Lamp 5 (660 nm): sen(beam) = 2.356 ref(beam) = 2.432 . Lamp 6 (880 nm): sen(beam) = 2.268 ref(beam) = 3.557 . Lamp 7 (950 nm): sen(beam) = 1.764 ref(beam) = 4.612 ---