19-nov-10 05:35:00 Measurements ended --- . Number of lamps (L) = 7 . Filter running time = 24.41 hours . Total airflow this filter = 7.2 cubic meters . Mean BC concentration of all lamps = 141 ng/m3 . Report for lamp 1 (370 nm): . Ending voltages: sen(beam) = .453 sen(zero) = 0.021 . ref(beam) = 1.372 ref(zero) = 0.020 . Optical attenuation of filter deposit = 75 . Total aerosol black carbon on filter = 949 ng Mean aerosol black carbon concentration = 132 ng/m3 --- The reference beam showed lamp intensity fluctuations of 89 ppm. --- Report for lamp 2 (470 nm): . Ending voltages: sen(beam) = .864 sen(zero) = 0.021 . ref(beam) = 1.589 ref(zero) = 0.020 . Optical attenuation of filter deposit = 61 . Total aerosol black carbon on filter = 992 ng Mean aerosol black carbon concentration = 138 ng/m3 --- The reference beam showed lamp intensity fluctuations of 44 ppm. --- Report for lamp 3 (520 nm): . Ending voltages: sen(beam) = .896 sen(zero) = 0.021 . ref(beam) = 1.999 ref(zero) = 0.020 . Optical attenuation of filter deposit = 55 . Total aerosol black carbon on filter = 987 ng Mean aerosol black carbon concentration = 137 ng/m3 --- The reference beam showed lamp intensity fluctuations of 40 ppm. --- Report for lamp 4 (590 nm): . Ending voltages: sen(beam) = .896 sen(zero) = 0.021 . ref(beam) = 2.824 ref(zero) = 0.020 . Optical attenuation of filter deposit = 50 . Total aerosol black carbon on filter = 1027 ng Mean aerosol black carbon concentration = 143 ng/m3 --- The reference beam showed lamp intensity fluctuations of 91 ppm. --- Report for lamp 5 (660 nm): . Ending voltages: sen(beam) = 1.278 sen(zero) = 0.021 . ref(beam) = 2.289 ref(zero) = 0.020 . Optical attenuation of filter deposit = 46 . Total aerosol black carbon on filter = 1047 ng Mean aerosol black carbon concentration = 145 ng/m3 --- The reference beam showed lamp intensity fluctuations of 55 ppm. --- Report for lamp 6 (880 nm): . Ending voltages: sen(beam) = 1.224 sen(zero) = 0.021 . ref(beam) = 2.321 ref(zero) = 0.020 . Optical attenuation of filter deposit = 35 . Total aerosol black carbon on filter = 1067 ng Mean aerosol black carbon concentration = 148 ng/m3 --- The reference beam showed lamp intensity fluctuations of 67 ppm. --- Report for lamp 7 (950 nm): . Ending voltages: sen(beam) = 1.131 sen(zero) = 0.021 . ref(beam) = 2.255 ref(zero) = 0.020 . Optical attenuation of filter deposit = 32 . Total aerosol black carbon on filter = 1046 ng Mean aerosol black carbon concentration = 145 ng/m3 --- The reference beam showed lamp intensity fluctuations of 69 ppm. --- Disk space = 2.535506E+08 bytes free: One entry at every 5 minutes. There is space for 53901 hours ( 2246 days) more data --- 19-nov-10 05:35:00 Tape feeder mechanism advancing for 1 spot(s). --- ============================================================= --- MAGEE SCIEN. AETHALOMETER --- Aethalometer No. 774 --- 19-nov-10 05:44:56 Measurements started Starting voltages: . sen(zero) = 0.021 ref(zero) = 0.020 . Lamp 1 (370 nm): sen(beam) = .884 ref(beam) = 1.313 . Lamp 2 (470 nm): sen(beam) = 1.605 ref(beam) = 1.616 . Lamp 3 (520 nm): sen(beam) = 1.570 ref(beam) = 2.031 . Lamp 4 (590 nm): sen(beam) = 1.464 ref(beam) = 2.804 . Lamp 5 (660 nm): sen(beam) = 2.044 ref(beam) = 2.329 . Lamp 6 (880 nm): sen(beam) = 1.759 ref(beam) = 2.360 . Lamp 7 (950 nm): sen(beam) = 1.573 ref(beam) = 2.302 ---