09-sep-10 19:05:00 Measurements ended --- . Number of lamps (L) = 7 . Filter running time = 217.91 hours . Total airflow this filter = 64.31 cubic meters . Mean BC concentration of all lamps = 12 ng/m3 . Report for lamp 1 (370 nm): . Ending voltages: sen(beam) = .484 sen(zero) = 0.021 . ref(beam) = 1.424 ref(zero) = 0.020 . Optical attenuation of filter deposit = 76 . Total aerosol black carbon on filter = 962 ng Mean aerosol black carbon concentration = 14 ng/m3 --- The reference beam showed lamp intensity fluctuations of 106 ppm. --- Report for lamp 2 (470 nm): . Ending voltages: sen(beam) = .965 sen(zero) = 0.021 . ref(beam) = 1.561 ref(zero) = 0.020 . Optical attenuation of filter deposit = 52 . Total aerosol black carbon on filter = 839 ng Mean aerosol black carbon concentration = 13 ng/m3 --- The reference beam showed lamp intensity fluctuations of 30 ppm. --- Report for lamp 3 (520 nm): . Ending voltages: sen(beam) = 1.031 sen(zero) = 0.021 . ref(beam) = 1.978 ref(zero) = 0.020 . Optical attenuation of filter deposit = 43 . Total aerosol black carbon on filter = 773 ng Mean aerosol black carbon concentration = 12 ng/m3 --- The reference beam showed lamp intensity fluctuations of 26 ppm. --- Report for lamp 4 (590 nm): . Ending voltages: sen(beam) = 1.044 sen(zero) = 0.021 . ref(beam) = 2.834 ref(zero) = 0.020 . Optical attenuation of filter deposit = 38 . Total aerosol black carbon on filter = 775 ng Mean aerosol black carbon concentration = 12 ng/m3 --- The reference beam showed lamp intensity fluctuations of 108 ppm. --- Report for lamp 5 (660 nm): . Ending voltages: sen(beam) = 1.491 sen(zero) = 0.021 . ref(beam) = 2.338 ref(zero) = 0.020 . Optical attenuation of filter deposit = 34 . Total aerosol black carbon on filter = 776 ng Mean aerosol black carbon concentration = 12 ng/m3 --- The reference beam showed lamp intensity fluctuations of 55 ppm. --- Report for lamp 6 (880 nm): . Ending voltages: sen(beam) = 1.379 sen(zero) = 0.021 . ref(beam) = 2.339 ref(zero) = 0.020 . Optical attenuation of filter deposit = 26 . Total aerosol black carbon on filter = 795 ng Mean aerosol black carbon concentration = 12 ng/m3 --- The reference beam showed lamp intensity fluctuations of 77 ppm. --- Report for lamp 7 (950 nm): . Ending voltages: sen(beam) = 1.253 sen(zero) = 0.021 . ref(beam) = 2.267 ref(zero) = 0.020 . Optical attenuation of filter deposit = 24 . Total aerosol black carbon on filter = 788 ng Mean aerosol black carbon concentration = 12 ng/m3 --- The reference beam showed lamp intensity fluctuations of 82 ppm. --- Disk space = 2.483159E+08 bytes free: One entry at every 5 minutes. There is space for 52788 hours ( 2200 days) more data --- 09-sep-10 19:05:00 Tape feeder mechanism advancing for 1 spot(s). --- ============================================================= --- MAGEE SCIEN. AETHALOMETER --- Aethalometer No. 774 --- 09-sep-10 19:14:56 Measurements started Starting voltages: . sen(zero) = 0.021 ref(zero) = 0.020 . Lamp 1 (370 nm): sen(beam) = .904 ref(beam) = 1.297 . Lamp 2 (470 nm): sen(beam) = 1.557 ref(beam) = 1.559 . Lamp 3 (520 nm): sen(beam) = 1.530 ref(beam) = 1.993 . Lamp 4 (590 nm): sen(beam) = 1.445 ref(beam) = 2.798 . Lamp 5 (660 nm): sen(beam) = 2.042 ref(beam) = 2.351 . Lamp 6 (880 nm): sen(beam) = 1.747 ref(beam) = 2.363 . Lamp 7 (950 nm): sen(beam) = 1.561 ref(beam) = 2.290 ---