14-feb-13 09:55:00 Measurements ended --- . Number of lamps (L) = 7 . Filter running time = 40.83 hours . Total airflow this filter = 11.96 cubic meters . Mean BC concentration of all lamps = 118 ng/m3 . Report for lamp 1 (370 nm): . Ending voltages: sen(beam) = .500 sen(zero) = 0.021 . ref(beam) = 2.176 ref(zero) = 0.021 . Optical attenuation of filter deposit = 99 . Total aerosol black carbon on filter = 1254 ng Mean aerosol black carbon concentration = 105 ng/m3 --- The reference beam showed lamp intensity fluctuations of 44 ppm. --- Report for lamp 2 (470 nm): . Ending voltages: sen(beam) = .915 sen(zero) = 0.021 . ref(beam) = 2.373 ref(zero) = 0.021 . Optical attenuation of filter deposit = 84 . Total aerosol black carbon on filter = 1362 ng Mean aerosol black carbon concentration = 114 ng/m3 --- The reference beam showed lamp intensity fluctuations of 33 ppm. --- Report for lamp 3 (520 nm): . Ending voltages: sen(beam) = .659 sen(zero) = 0.021 . ref(beam) = 2.435 ref(zero) = 0.021 . Optical attenuation of filter deposit = 76 . Total aerosol black carbon on filter = 1355 ng Mean aerosol black carbon concentration = 113 ng/m3 --- The reference beam showed lamp intensity fluctuations of 32 ppm. --- Report for lamp 4 (590 nm): . Ending voltages: sen(beam) = .967 sen(zero) = 0.021 . ref(beam) = 1.247 ref(zero) = 0.021 . Optical attenuation of filter deposit = 69 . Total aerosol black carbon on filter = 1400 ng Mean aerosol black carbon concentration = 117 ng/m3 --- The reference beam showed lamp intensity fluctuations of 114 ppm. --- Report for lamp 5 (660 nm): . Ending voltages: sen(beam) = 1.229 sen(zero) = 0.021 . ref(beam) = 2.268 ref(zero) = 0.021 . Optical attenuation of filter deposit = 65 . Total aerosol black carbon on filter = 1472 ng Mean aerosol black carbon concentration = 123 ng/m3 --- The reference beam showed lamp intensity fluctuations of 68 ppm. --- Report for lamp 6 (880 nm): . Ending voltages: sen(beam) = 1.402 sen(zero) = 0.021 . ref(beam) = 3.525 ref(zero) = 0.021 . Optical attenuation of filter deposit = 50 . Total aerosol black carbon on filter = 1523 ng Mean aerosol black carbon concentration = 127 ng/m3 --- The reference beam showed lamp intensity fluctuations of 76 ppm. --- Report for lamp 7 (950 nm): . Ending voltages: sen(beam) = 1.138 sen(zero) = 0.021 . ref(beam) = 4.515 ref(zero) = 0.021 . Optical attenuation of filter deposit = 46 . Total aerosol black carbon on filter = 1510 ng Mean aerosol black carbon concentration = 126 ng/m3 --- The reference beam showed lamp intensity fluctuations of 77 ppm. --- Disk space = 2.665984E+07 bytes free: One entry at every 5 minutes. There is space for 5667 hours ( 236 days) more data --- 14-feb-13 09:55:00 Tape feeder mechanism advancing for 2 spot(s). --- ============================================================= --- MAGEE SCIEN. AETHALOMETER --- Aethalometer No. 463 --- 14-feb-13 10:09:54 Measurements started Starting voltages: . sen(zero) = 0.021 ref(zero) = 0.021 . Lamp 1 (370 nm): sen(beam) = 1.281 ref(beam) = 2.104 . Lamp 2 (470 nm): sen(beam) = 2.095 ref(beam) = 2.342 . Lamp 3 (520 nm): sen(beam) = 1.370 ref(beam) = 2.407 . Lamp 4 (590 nm): sen(beam) = 1.868 ref(beam) = 1.222 . Lamp 5 (660 nm): sen(beam) = 2.317 ref(beam) = 2.240 . Lamp 6 (880 nm): sen(beam) = 2.272 ref(beam) = 3.474 . Lamp 7 (950 nm): sen(beam) = 1.771 ref(beam) = 4.432 ---