25-jan-13 12:05:00 Measurements ended --- . Number of lamps (L) = 7 . Filter running time = 35 hours . Total airflow this filter = 10.25 cubic meters . Mean BC concentration of all lamps = 131 ng/m3 . Report for lamp 1 (370 nm): . Ending voltages: sen(beam) = .423 sen(zero) = 0.021 . ref(beam) = 2.172 ref(zero) = 0.021 . Optical attenuation of filter deposit = 99 . Total aerosol black carbon on filter = 1253 ng Mean aerosol black carbon concentration = 122 ng/m3 --- The reference beam showed lamp intensity fluctuations of 54 ppm. --- Report for lamp 2 (470 nm): . Ending voltages: sen(beam) = .818 sen(zero) = 0.021 . ref(beam) = 2.397 ref(zero) = 0.021 . Optical attenuation of filter deposit = 82 . Total aerosol black carbon on filter = 1322 ng Mean aerosol black carbon concentration = 129 ng/m3 --- The reference beam showed lamp intensity fluctuations of 40 ppm. --- Report for lamp 3 (520 nm): . Ending voltages: sen(beam) = .589 sen(zero) = 0.021 . ref(beam) = 2.420 ref(zero) = 0.021 . Optical attenuation of filter deposit = 73 . Total aerosol black carbon on filter = 1304 ng Mean aerosol black carbon concentration = 127 ng/m3 --- The reference beam showed lamp intensity fluctuations of 37 ppm. --- Report for lamp 4 (590 nm): . Ending voltages: sen(beam) = .885 sen(zero) = 0.021 . ref(beam) = 1.232 ref(zero) = 0.021 . Optical attenuation of filter deposit = 66 . Total aerosol black carbon on filter = 1343 ng Mean aerosol black carbon concentration = 131 ng/m3 --- The reference beam showed lamp intensity fluctuations of 155 ppm. --- Report for lamp 5 (660 nm): . Ending voltages: sen(beam) = 1.127 sen(zero) = 0.021 . ref(beam) = 2.293 ref(zero) = 0.021 . Optical attenuation of filter deposit = 61 . Total aerosol black carbon on filter = 1376 ng Mean aerosol black carbon concentration = 134 ng/m3 --- The reference beam showed lamp intensity fluctuations of 97 ppm. --- Report for lamp 6 (880 nm): . Ending voltages: sen(beam) = 1.335 sen(zero) = 0.021 . ref(beam) = 3.471 ref(zero) = 0.021 . Optical attenuation of filter deposit = 46 . Total aerosol black carbon on filter = 1414 ng Mean aerosol black carbon concentration = 138 ng/m3 --- The reference beam showed lamp intensity fluctuations of 96 ppm. --- Report for lamp 7 (950 nm): . Ending voltages: sen(beam) = 1.087 sen(zero) = 0.021 . ref(beam) = 4.551 ref(zero) = 0.021 . Optical attenuation of filter deposit = 42 . Total aerosol black carbon on filter = 1378 ng Mean aerosol black carbon concentration = 134 ng/m3 --- The reference beam showed lamp intensity fluctuations of 93 ppm. --- Disk space = 2.518221E+07 bytes free: One entry at every 5 minutes. There is space for 5353 hours ( 223 days) more data --- 25-jan-13 12:05:00 Tape feeder mechanism advancing for 1 spot(s). --- ============================================================= --- MAGEE SCIEN. AETHALOMETER --- Aethalometer No. 463 --- 25-jan-13 12:19:54 Measurements started Starting voltages: . sen(zero) = 0.021 ref(zero) = 0.021 . Lamp 1 (370 nm): sen(beam) = .572 ref(beam) = 2.162 . Lamp 2 (470 nm): sen(beam) = 1.019 ref(beam) = 2.392 . Lamp 3 (520 nm): sen(beam) = .728 ref(beam) = 2.426 . Lamp 4 (590 nm): sen(beam) = 1.017 ref(beam) = 1.219 . Lamp 5 (660 nm): sen(beam) = 1.290 ref(beam) = 2.285 . Lamp 6 (880 nm): sen(beam) = 1.505 ref(beam) = 3.469 . Lamp 7 (950 nm): sen(beam) = 1.211 ref(beam) = 4.534 ---