31-jan-12 01:24:29 Measurements ended --- . Number of lamps (L) = 7 . Filter running time = 5.41 hours . Total airflow this filter = 1.58 cubic meters . Mean BC concentration of all lamps = 78 ng/m3 . Report for lamp 1 (370 nm): . Ending voltages: sen(beam) = .814 sen(zero) = 0.021 . ref(beam) = 2.265 ref(zero) = 0.021 . Optical attenuation of filter deposit = 9 . Total aerosol black carbon on filter = 117 ng Mean aerosol black carbon concentration = 75 ng/m3 --- The reference beam showed lamp intensity fluctuations of 140 ppm. --- Report for lamp 2 (470 nm): . Ending voltages: sen(beam) = 1.408 sen(zero) = 0.021 . ref(beam) = 2.464 ref(zero) = 0.021 . Optical attenuation of filter deposit = 7 . Total aerosol black carbon on filter = 122 ng Mean aerosol black carbon concentration = 78 ng/m3 --- The reference beam showed lamp intensity fluctuations of 133 ppm. --- Report for lamp 3 (520 nm): . Ending voltages: sen(beam) = .964 sen(zero) = 0.021 . ref(beam) = 2.510 ref(zero) = 0.021 . Optical attenuation of filter deposit = 6 . Total aerosol black carbon on filter = 119 ng Mean aerosol black carbon concentration = 76 ng/m3 --- The reference beam showed lamp intensity fluctuations of 126 ppm. --- Report for lamp 4 (590 nm): . Ending voltages: sen(beam) = 1.406 sen(zero) = 0.021 . ref(beam) = 1.303 ref(zero) = 0.021 . Optical attenuation of filter deposit = 6 . Total aerosol black carbon on filter = 122 ng Mean aerosol black carbon concentration = 78 ng/m3 --- The reference beam showed lamp intensity fluctuations of 375 ppm. --- Report for lamp 5 (660 nm): . Ending voltages: sen(beam) = 1.789 sen(zero) = 0.021 . ref(beam) = 2.504 ref(zero) = 0.021 . Optical attenuation of filter deposit = 5 . Total aerosol black carbon on filter = 127 ng Mean aerosol black carbon concentration = 81 ng/m3 --- The reference beam showed lamp intensity fluctuations of 241 ppm. --- Report for lamp 6 (880 nm): . Ending voltages: sen(beam) = 1.886 sen(zero) = 0.021 . ref(beam) = 3.653 ref(zero) = 0.021 . Optical attenuation of filter deposit = 4 . Total aerosol black carbon on filter = 124 ng Mean aerosol black carbon concentration = 79 ng/m3 --- The reference beam showed lamp intensity fluctuations of 282 ppm. --- Report for lamp 7 (950 nm): . Ending voltages: sen(beam) = 1.494 sen(zero) = 0.021 . ref(beam) = 4.779 ref(zero) = 0.021 . Optical attenuation of filter deposit = 3 . Total aerosol black carbon on filter = 120 ng Mean aerosol black carbon concentration = 76 ng/m3 --- The reference beam showed lamp intensity fluctuations of 284 ppm. --- Disk space = 2.79552E+07 bytes free: One entry at every 5 minutes. There is space for 5943 hours ( 248 days) more data --- Disk space = 2.79255E+07 bytes free: One entry at every 5 minutes. There is space for 5937 hours ( 247 days) more data --- 31-jan-12 01:38:09 Tape feeder mechanism advancing for 1 spot(s). --- 31-jan-12 01:41:00 ============================================================= Automatic re-start ============================================================= --- MAGEE SCIEN. AETHALOMETER --- Aethalometer No. 463 --- 31-jan-12 01:49:54 Measurements started Starting voltages: . sen(zero) = 0.021 ref(zero) = 0.021 . Lamp 1 (370 nm): sen(beam) = 1.182 ref(beam) = 2.264 . Lamp 2 (470 nm): sen(beam) = 1.954 ref(beam) = 2.473 . Lamp 3 (520 nm): sen(beam) = 1.293 ref(beam) = 2.531 . Lamp 4 (590 nm): sen(beam) = 1.826 ref(beam) = 1.300 . Lamp 5 (660 nm): sen(beam) = 2.329 ref(beam) = 2.510 . Lamp 6 (880 nm): sen(beam) = 2.264 ref(beam) = 3.685 . Lamp 7 (950 nm): sen(beam) = 1.771 ref(beam) = 4.771 ---