15-may-17 00:55:00 Measurements ended --- . Number of lamps (L) = 7 . Filter running time = 37.41 hours . Total airflow this filter = 4.1 cubic meters . Mean BC concentration of all lamps = 223 ng/vm3 . Report for lamp 1 (370 nm): . Ending voltages: sen(beam) = .638 sen(zero) = 0.021 . ref(beam) = 2.106 ref(zero) = 0.021 . Optical attenuation of filter deposit = 75 . Total aerosol black carbon on filter = 950 ng Mean aerosol black carbon concentration = 231 ng/vm3 --- The reference beam showed lamp intensity fluctuations of 545 ppm. --- Report for lamp 2 (470 nm): . Ending voltages: sen(beam) = .622 sen(zero) = 0.021 . ref(beam) = 2.409 ref(zero) = 0.021 . Optical attenuation of filter deposit = 59 . Total aerosol black carbon on filter = 964 ng Mean aerosol black carbon concentration = 235 ng/vm3 --- The reference beam showed lamp intensity fluctuations of 467 ppm. --- Report for lamp 3 (520 nm): . Ending voltages: sen(beam) = .851 sen(zero) = 0.021 . ref(beam) = 1.637 ref(zero) = 0.021 . Optical attenuation of filter deposit = 51 . Total aerosol black carbon on filter = 918 ng Mean aerosol black carbon concentration = 224 ng/vm3 --- The reference beam showed lamp intensity fluctuations of 536 ppm. --- Report for lamp 4 (590 nm): . Ending voltages: sen(beam) = .596 sen(zero) = 0.021 . ref(beam) = 2.057 ref(zero) = 0.021 . Optical attenuation of filter deposit = 45 . Total aerosol black carbon on filter = 917 ng Mean aerosol black carbon concentration = 223 ng/vm3 --- The reference beam showed lamp intensity fluctuations of 725 ppm. --- Report for lamp 5 (660 nm): . Ending voltages: sen(beam) = .265 sen(zero) = 0.021 . ref(beam) = .887 ref(zero) = 0.021 . Optical attenuation of filter deposit = 40 . Total aerosol black carbon on filter = 922 ng Mean aerosol black carbon concentration = 225 ng/vm3 --- The reference beam showed lamp intensity fluctuations of 596 ppm. --- Report for lamp 6 (880 nm): . Ending voltages: sen(beam) = .468 sen(zero) = 0.021 . ref(beam) = 1.056 ref(zero) = 0.021 . Optical attenuation of filter deposit = 29 . Total aerosol black carbon on filter = 889 ng Mean aerosol black carbon concentration = 216 ng/vm3 --- The reference beam showed lamp intensity fluctuations of 747 ppm. --- Report for lamp 7 (950 nm): . Ending voltages: sen(beam) = .796 sen(zero) = 0.021 . ref(beam) = 1.103 ref(zero) = 0.021 . Optical attenuation of filter deposit = 26 . Total aerosol black carbon on filter = 850 ng Mean aerosol black carbon concentration = 207 ng/vm3 --- The reference beam showed lamp intensity fluctuations of 799 ppm. --- Disk space = 2.553078E+08 bytes free: One entry at every 10 minutes. There is space for 108549 hours ( 4523 days) more data --- 15-may-17 00:55:00 Tape feeder mechanism advancing for 2 spot(s). --- ============================================================= --- MAGEE SCIEN. AETHALOMETER --- Aethalometer No. 360 --- 15-may-17 01:19:54 Measurements started Starting voltages: . sen(zero) = 0.021 ref(zero) = 0.021 . Lamp 1 (370 nm): sen(beam) = 1.340 ref(beam) = 2.094 . Lamp 2 (470 nm): sen(beam) = 1.132 ref(beam) = 2.443 . Lamp 3 (520 nm): sen(beam) = 1.424 ref(beam) = 1.654 . Lamp 4 (590 nm): sen(beam) = .899 ref(beam) = 2.020 . Lamp 5 (660 nm): sen(beam) = .391 ref(beam) = .900 . Lamp 6 (880 nm): sen(beam) = .616 ref(beam) = 1.060 . Lamp 7 (950 nm): sen(beam) = 1.021 ref(beam) = 1.102 ---