03-apr-10 07:10:00 Measurements ended --- . Number of lamps (L) = 7 . Filter running time = 82 hours . Total airflow this filter = 24.08 cubic meters . Mean BC concentration of all lamps = 55 ng/m3 . Report for lamp 1 (370 nm): . Ending voltages: sen(beam) = .509 sen(zero) = 0.021 . ref(beam) = 2.209 ref(zero) = 0.021 . Optical attenuation of filter deposit = 99 . Total aerosol black carbon on filter = 1253 ng Mean aerosol black carbon concentration = 52 ng/m3 --- The reference beam showed lamp intensity fluctuations of 65 ppm. --- Report for lamp 2 (470 nm): . Ending voltages: sen(beam) = .870 sen(zero) = 0.021 . ref(beam) = 2.164 ref(zero) = 0.021 . Optical attenuation of filter deposit = 82 . Total aerosol black carbon on filter = 1323 ng Mean aerosol black carbon concentration = 54 ng/m3 --- The reference beam showed lamp intensity fluctuations of 45 ppm. --- Report for lamp 3 (520 nm): . Ending voltages: sen(beam) = .694 sen(zero) = 0.021 . ref(beam) = 2.473 ref(zero) = 0.021 . Optical attenuation of filter deposit = 72 . Total aerosol black carbon on filter = 1295 ng Mean aerosol black carbon concentration = 53 ng/m3 --- The reference beam showed lamp intensity fluctuations of 37 ppm. --- Report for lamp 4 (590 nm): . Ending voltages: sen(beam) = .940 sen(zero) = 0.021 . ref(beam) = 1.165 ref(zero) = 0.021 . Optical attenuation of filter deposit = 65 . Total aerosol black carbon on filter = 1323 ng Mean aerosol black carbon concentration = 54 ng/m3 --- The reference beam showed lamp intensity fluctuations of 160 ppm. --- Report for lamp 5 (660 nm): . Ending voltages: sen(beam) = 1.550 sen(zero) = 0.021 . ref(beam) = 2.715 ref(zero) = 0.021 . Optical attenuation of filter deposit = 60 . Total aerosol black carbon on filter = 1365 ng Mean aerosol black carbon concentration = 56 ng/m3 --- The reference beam showed lamp intensity fluctuations of 102 ppm. --- Report for lamp 6 (880 nm): . Ending voltages: sen(beam) = 1.437 sen(zero) = 0.021 . ref(beam) = 3.426 ref(zero) = 0.021 . Optical attenuation of filter deposit = 47 . Total aerosol black carbon on filter = 1431 ng Mean aerosol black carbon concentration = 59 ng/m3 --- The reference beam showed lamp intensity fluctuations of 107 ppm. --- Report for lamp 7 (950 nm): . Ending voltages: sen(beam) = 1.179 sen(zero) = 0.021 . ref(beam) = 4.438 ref(zero) = 0.021 . Optical attenuation of filter deposit = 43 . Total aerosol black carbon on filter = 1402 ng Mean aerosol black carbon concentration = 58 ng/m3 --- The reference beam showed lamp intensity fluctuations of 108 ppm. --- Disk space = 3.054029E+07 bytes free: One entry at every 5 minutes. There is space for 6492 hours ( 270 days) more data --- 03-apr-10 07:10:00 Tape feeder mechanism advancing for 1 spot(s). --- ============================================================= --- MAGEE SCIEN. AETHALOMETER --- Aethalometer No. 463 --- 03-apr-10 07:24:54 Measurements started Starting voltages: . sen(zero) = 0.021 ref(zero) = 0.021 . Lamp 1 (370 nm): sen(beam) = 1.337 ref(beam) = 2.188 . Lamp 2 (470 nm): sen(beam) = 1.968 ref(beam) = 2.160 . Lamp 3 (520 nm): sen(beam) = 1.432 ref(beam) = 2.475 . Lamp 4 (590 nm): sen(beam) = 1.787 ref(beam) = 1.156 . Lamp 5 (660 nm): sen(beam) = 2.836 ref(beam) = 2.706 . Lamp 6 (880 nm): sen(beam) = 2.308 ref(beam) = 3.415 . Lamp 7 (950 nm): sen(beam) = 1.808 ref(beam) = 4.408 ---