23-jan-12 19:05:29 Measurements ended --- . Number of lamps (L) = 7 . Filter running time = 23.33 hours . Total airflow this filter = 6.84 cubic meters . Mean BC concentration of all lamps = 51 ng/m3 . Report for lamp 1 (370 nm): . Ending voltages: sen(beam) = 1.006 sen(zero) = 0.021 . ref(beam) = 2.224 ref(zero) = 0.021 . Optical attenuation of filter deposit = 28 . Total aerosol black carbon on filter = 356 ng Mean aerosol black carbon concentration = 52 ng/m3 --- The reference beam showed lamp intensity fluctuations of 36 ppm. --- Report for lamp 2 (470 nm): . Ending voltages: sen(beam) = 1.727 sen(zero) = 0.021 . ref(beam) = 2.444 ref(zero) = 0.021 . Optical attenuation of filter deposit = 22 . Total aerosol black carbon on filter = 354 ng Mean aerosol black carbon concentration = 52 ng/m3 --- The reference beam showed lamp intensity fluctuations of 28 ppm. --- Report for lamp 3 (520 nm): . Ending voltages: sen(beam) = 1.164 sen(zero) = 0.021 . ref(beam) = 2.490 ref(zero) = 0.021 . Optical attenuation of filter deposit = 19 . Total aerosol black carbon on filter = 347 ng Mean aerosol black carbon concentration = 50 ng/m3 --- The reference beam showed lamp intensity fluctuations of 30 ppm. --- Report for lamp 4 (590 nm): . Ending voltages: sen(beam) = 1.678 sen(zero) = 0.021 . ref(beam) = 1.293 ref(zero) = 0.021 . Optical attenuation of filter deposit = 17 . Total aerosol black carbon on filter = 350 ng Mean aerosol black carbon concentration = 51 ng/m3 --- The reference beam showed lamp intensity fluctuations of 91 ppm. --- Report for lamp 5 (660 nm): . Ending voltages: sen(beam) = 2.165 sen(zero) = 0.021 . ref(beam) = 2.485 ref(zero) = 0.021 . Optical attenuation of filter deposit = 15 . Total aerosol black carbon on filter = 358 ng Mean aerosol black carbon concentration = 52 ng/m3 --- The reference beam showed lamp intensity fluctuations of 54 ppm. --- Report for lamp 6 (880 nm): . Ending voltages: sen(beam) = 2.140 sen(zero) = 0.021 . ref(beam) = 3.639 ref(zero) = 0.021 . Optical attenuation of filter deposit = 12 . Total aerosol black carbon on filter = 362 ng Mean aerosol black carbon concentration = 53 ng/m3 --- The reference beam showed lamp intensity fluctuations of 58 ppm. --- Report for lamp 7 (950 nm): . Ending voltages: sen(beam) = 1.698 sen(zero) = 0.021 . ref(beam) = 4.719 ref(zero) = 0.021 . Optical attenuation of filter deposit = 10 . Total aerosol black carbon on filter = 347 ng Mean aerosol black carbon concentration = 50 ng/m3 --- The reference beam showed lamp intensity fluctuations of 59 ppm. --- Disk space = 2.885427E+07 bytes free: One entry at every 5 minutes. There is space for 6134 hours ( 256 days) more data --- Disk space = 2.874112E+07 bytes free: One entry at every 5 minutes. There is space for 6110 hours ( 255 days) more data --- 23-jan-12 19:54:16 Tape feeder mechanism advancing for 1 spot(s). --- 23-jan-12 19:56:00 ============================================================= Automatic re-start ============================================================= --- MAGEE SCIEN. AETHALOMETER --- Aethalometer No. 463 --- 23-jan-12 20:04:54 Measurements started Starting voltages: . sen(zero) = 0.021 ref(zero) = 0.021 . Lamp 1 (370 nm): sen(beam) = 1.335 ref(beam) = 2.173 . Lamp 2 (470 nm): sen(beam) = 2.161 ref(beam) = 2.420 . Lamp 3 (520 nm): sen(beam) = 1.431 ref(beam) = 2.457 . Lamp 4 (590 nm): sen(beam) = 1.985 ref(beam) = 1.264 . Lamp 5 (660 nm): sen(beam) = 2.549 ref(beam) = 2.464 . Lamp 6 (880 nm): sen(beam) = 2.413 ref(beam) = 3.577 . Lamp 7 (950 nm): sen(beam) = 1.886 ref(beam) = 4.674 ---