21-nov-11 16:21:30 Measurements ended --- . Number of lamps (L) = 7 . Filter running time = 19.5 hours . Total airflow this filter = 5.71 cubic meters . Mean BC concentration of all lamps = 185 ng/m3 . Report for lamp 1 (370 nm): . Ending voltages: sen(beam) = .628 sen(zero) = 0.021 . ref(beam) = 2.284 ref(zero) = 0.021 . Optical attenuation of filter deposit = 78 . Total aerosol black carbon on filter = 989 ng Mean aerosol black carbon concentration = 173 ng/m3 --- The reference beam showed lamp intensity fluctuations of 49 ppm. --- Report for lamp 2 (470 nm): . Ending voltages: sen(beam) = 1.132 sen(zero) = 0.021 . ref(beam) = 2.474 ref(zero) = 0.021 . Optical attenuation of filter deposit = 65 . Total aerosol black carbon on filter = 1046 ng Mean aerosol black carbon concentration = 183 ng/m3 --- The reference beam showed lamp intensity fluctuations of 33 ppm. --- Report for lamp 3 (520 nm): . Ending voltages: sen(beam) = .810 sen(zero) = 0.021 . ref(beam) = 2.532 ref(zero) = 0.021 . Optical attenuation of filter deposit = 57 . Total aerosol black carbon on filter = 1031 ng Mean aerosol black carbon concentration = 181 ng/m3 --- The reference beam showed lamp intensity fluctuations of 31 ppm. --- Report for lamp 4 (590 nm): . Ending voltages: sen(beam) = 1.211 sen(zero) = 0.021 . ref(beam) = 1.325 ref(zero) = 0.021 . Optical attenuation of filter deposit = 52 . Total aerosol black carbon on filter = 1049 ng Mean aerosol black carbon concentration = 184 ng/m3 --- The reference beam showed lamp intensity fluctuations of 128 ppm. --- Report for lamp 5 (660 nm): . Ending voltages: sen(beam) = 1.601 sen(zero) = 0.021 . ref(beam) = 2.537 ref(zero) = 0.021 . Optical attenuation of filter deposit = 48 . Total aerosol black carbon on filter = 1085 ng Mean aerosol black carbon concentration = 190 ng/m3 --- The reference beam showed lamp intensity fluctuations of 83 ppm. --- Report for lamp 6 (880 nm): . Ending voltages: sen(beam) = 1.707 sen(zero) = 0.021 . ref(beam) = 3.718 ref(zero) = 0.021 . Optical attenuation of filter deposit = 36 . Total aerosol black carbon on filter = 1107 ng Mean aerosol black carbon concentration = 194 ng/m3 --- The reference beam showed lamp intensity fluctuations of 91 ppm. --- Report for lamp 7 (950 nm): . Ending voltages: sen(beam) = 1.383 sen(zero) = 0.021 . ref(beam) = 4.816 ref(zero) = 0.021 . Optical attenuation of filter deposit = 33 . Total aerosol black carbon on filter = 1079 ng Mean aerosol black carbon concentration = 189 ng/m3 --- The reference beam showed lamp intensity fluctuations of 94 ppm. --- Disk space = 1.863322E+07 bytes free: One entry at every 5 minutes. There is space for 3961 hours ( 165 days) more data --- Disk space = 1.85385E+07 bytes free: One entry at every 5 minutes. There is space for 3941 hours ( 164 days) more data --- 21-nov-11 18:37:03 Tape feeder mechanism advancing for 1 spot(s). --- 21-nov-11 18:41:00 ============================================================= Automatic re-start ============================================================= --- MAGEE SCIEN. AETHALOMETER --- Aethalometer No. 463 --- 21-nov-11 18:49:54 Measurements started Starting voltages: . sen(zero) = 0.021 ref(zero) = 0.021 . Lamp 1 (370 nm): sen(beam) = 1.355 ref(beam) = 2.240 . Lamp 2 (470 nm): sen(beam) = 2.178 ref(beam) = 2.459 . Lamp 3 (520 nm): sen(beam) = 1.437 ref(beam) = 2.505 . Lamp 4 (590 nm): sen(beam) = 2.018 ref(beam) = 1.302 . Lamp 5 (660 nm): sen(beam) = 2.594 ref(beam) = 2.522 . Lamp 6 (880 nm): sen(beam) = 2.445 ref(beam) = 3.665 . Lamp 7 (950 nm): sen(beam) = 1.918 ref(beam) = 4.773 ---