30-mar-12 17:53:07 Measurements ended --- . Number of lamps (L) = 7 . Filter running time = 33.33 hours . Total airflow this filter = 9.77 cubic meters . Mean BC concentration of all lamps = 94 ng/m3 . Report for lamp 1 (370 nm): . Ending voltages: sen(beam) = .122 sen(zero) = 0.021 . ref(beam) = 2.246 ref(zero) = 0.021 . Optical attenuation of filter deposit = 58 . Total aerosol black carbon on filter = 745 ng Mean aerosol black carbon concentration = 76 ng/m3 --- The reference beam showed lamp intensity fluctuations of 88 ppm. --- Report for lamp 2 (470 nm): . Ending voltages: sen(beam) = .236 sen(zero) = 0.021 . ref(beam) = 2.438 ref(zero) = 0.021 . Optical attenuation of filter deposit = 52 . Total aerosol black carbon on filter = 848 ng Mean aerosol black carbon concentration = 87 ng/m3 --- The reference beam showed lamp intensity fluctuations of 61 ppm. --- Report for lamp 3 (520 nm): . Ending voltages: sen(beam) = .193 sen(zero) = 0.021 . ref(beam) = 2.491 ref(zero) = 0.021 . Optical attenuation of filter deposit = 48 . Total aerosol black carbon on filter = 862 ng Mean aerosol black carbon concentration = 88 ng/m3 --- The reference beam showed lamp intensity fluctuations of 50 ppm. --- Report for lamp 4 (590 nm): . Ending voltages: sen(beam) = .292 sen(zero) = 0.021 . ref(beam) = 1.273 ref(zero) = 0.021 . Optical attenuation of filter deposit = 44 . Total aerosol black carbon on filter = 895 ng Mean aerosol black carbon concentration = 91 ng/m3 --- The reference beam showed lamp intensity fluctuations of 234 ppm. --- Report for lamp 5 (660 nm): . Ending voltages: sen(beam) = .397 sen(zero) = 0.021 . ref(beam) = 2.442 ref(zero) = 0.021 . Optical attenuation of filter deposit = 41 . Total aerosol black carbon on filter = 941 ng Mean aerosol black carbon concentration = 96 ng/m3 --- The reference beam showed lamp intensity fluctuations of 155 ppm. --- Report for lamp 6 (880 nm): . Ending voltages: sen(beam) = .553 sen(zero) = 0.021 . ref(beam) = 3.615 ref(zero) = 0.021 . Optical attenuation of filter deposit = 35 . Total aerosol black carbon on filter = 1071 ng Mean aerosol black carbon concentration = 109 ng/m3 --- The reference beam showed lamp intensity fluctuations of 172 ppm. --- Report for lamp 7 (950 nm): . Ending voltages: sen(beam) = .476 sen(zero) = 0.021 . ref(beam) = 4.664 ref(zero) = 0.021 . Optical attenuation of filter deposit = 32 . Total aerosol black carbon on filter = 1055 ng Mean aerosol black carbon concentration = 108 ng/m3 --- The reference beam showed lamp intensity fluctuations of 173 ppm. --- Disk space = 2.795725E+07 bytes free: One entry at every 5 minutes. There is space for 5943 hours ( 248 days) more data --- Disk space = 2.77975E+07 bytes free: One entry at every 5 minutes. There is space for 5909 hours ( 246 days) more data --- 30-mar-12 17:51:47 Tape feeder mechanism advancing for 1 spot(s). --- 30-mar-12 17:56:00 ============================================================= Automatic re-start ============================================================= --- MAGEE SCIEN. AETHALOMETER --- Aethalometer No. 463 --- 30-mar-12 18:04:54 Measurements started Starting voltages: . sen(zero) = 0.021 ref(zero) = 0.021 . Lamp 1 (370 nm): sen(beam) = .241 ref(beam) = 2.238 . Lamp 2 (470 nm): sen(beam) = .413 ref(beam) = 2.445 . Lamp 3 (520 nm): sen(beam) = .319 ref(beam) = 2.485 . Lamp 4 (590 nm): sen(beam) = .437 ref(beam) = 1.255 . Lamp 5 (660 nm): sen(beam) = .557 ref(beam) = 2.450 . Lamp 6 (880 nm): sen(beam) = .776 ref(beam) = 3.590 . Lamp 7 (950 nm): sen(beam) = .631 ref(beam) = 4.670 ---