25-jul-12 16:10:00 Measurements ended --- . Number of lamps (L) = 7 . Filter running time = 118.33 hours . Total airflow this filter = 34.69 cubic meters . Mean BC concentration of all lamps = 30 ng/m3 . Report for lamp 1 (370 nm): . Ending voltages: sen(beam) = .497 sen(zero) = 0.021 . ref(beam) = 2.119 ref(zero) = 0.021 . Optical attenuation of filter deposit = 99 . Total aerosol black carbon on filter = 1256 ng Mean aerosol black carbon concentration = 36 ng/m3 --- The reference beam showed lamp intensity fluctuations of 236 ppm. --- Report for lamp 2 (470 nm): . Ending voltages: sen(beam) = 1.036 sen(zero) = 0.021 . ref(beam) = 2.341 ref(zero) = 0.021 . Optical attenuation of filter deposit = 72 . Total aerosol black carbon on filter = 1158 ng Mean aerosol black carbon concentration = 33 ng/m3 --- The reference beam showed lamp intensity fluctuations of 204 ppm. --- Report for lamp 3 (520 nm): . Ending voltages: sen(beam) = .781 sen(zero) = 0.021 . ref(beam) = 2.393 ref(zero) = 0.021 . Optical attenuation of filter deposit = 59 . Total aerosol black carbon on filter = 1053 ng Mean aerosol black carbon concentration = 30 ng/m3 --- The reference beam showed lamp intensity fluctuations of 171 ppm. --- Report for lamp 4 (590 nm): . Ending voltages: sen(beam) = 1.112 sen(zero) = 0.021 . ref(beam) = 1.172 ref(zero) = 0.021 . Optical attenuation of filter deposit = 50 . Total aerosol black carbon on filter = 1017 ng Mean aerosol black carbon concentration = 29 ng/m3 --- The reference beam showed lamp intensity fluctuations of 438 ppm. --- Report for lamp 5 (660 nm): . Ending voltages: sen(beam) = 1.511 sen(zero) = 0.021 . ref(beam) = 2.270 ref(zero) = 0.021 . Optical attenuation of filter deposit = 45 . Total aerosol black carbon on filter = 1023 ng Mean aerosol black carbon concentration = 29 ng/m3 --- The reference beam showed lamp intensity fluctuations of 321 ppm. --- Report for lamp 6 (880 nm): . Ending voltages: sen(beam) = 1.634 sen(zero) = 0.021 . ref(beam) = 3.345 ref(zero) = 0.021 . Optical attenuation of filter deposit = 32 . Total aerosol black carbon on filter = 969 ng Mean aerosol black carbon concentration = 27 ng/m3 --- The reference beam showed lamp intensity fluctuations of 357 ppm. --- Report for lamp 7 (950 nm): . Ending voltages: sen(beam) = 1.323 sen(zero) = 0.021 . ref(beam) = 4.357 ref(zero) = 0.021 . Optical attenuation of filter deposit = 28 . Total aerosol black carbon on filter = 940 ng Mean aerosol black carbon concentration = 27 ng/m3 --- The reference beam showed lamp intensity fluctuations of 365 ppm. --- Disk space = 2.555187E+07 bytes free: One entry at every 5 minutes. There is space for 5432 hours ( 226 days) more data --- 25-jul-12 16:10:00 Tape feeder mechanism advancing for 1 spot(s). --- ============================================================= --- MAGEE SCIEN. AETHALOMETER --- Aethalometer No. 463 --- 25-jul-12 16:24:54 Measurements started Starting voltages: . sen(zero) = 0.021 ref(zero) = 0.021 . Lamp 1 (370 nm): sen(beam) = 1.281 ref(beam) = 2.099 . Lamp 2 (470 nm): sen(beam) = 2.096 ref(beam) = 2.354 . Lamp 3 (520 nm): sen(beam) = 1.386 ref(beam) = 2.406 . Lamp 4 (590 nm): sen(beam) = 1.795 ref(beam) = 1.167 . Lamp 5 (660 nm): sen(beam) = 2.355 ref(beam) = 2.288 . Lamp 6 (880 nm): sen(beam) = 2.229 ref(beam) = 3.356 . Lamp 7 (950 nm): sen(beam) = 1.739 ref(beam) = 4.366 ---