25-jan-12 23:00:15 Measurements ended --- . Number of lamps (L) = 7 . Filter running time = 50.91 hours . Total airflow this filter = 14.93 cubic meters . Mean BC concentration of all lamps = 52 ng/m3 . Report for lamp 1 (370 nm): . Ending voltages: sen(beam) = .752 sen(zero) = 0.021 . ref(beam) = 2.191 ref(zero) = 0.021 . Optical attenuation of filter deposit = 58 . Total aerosol black carbon on filter = 744 ng Mean aerosol black carbon concentration = 49 ng/m3 --- The reference beam showed lamp intensity fluctuations of 46 ppm. --- Report for lamp 2 (470 nm): . Ending voltages: sen(beam) = 1.344 sen(zero) = 0.021 . ref(beam) = 2.425 ref(zero) = 0.021 . Optical attenuation of filter deposit = 47 . Total aerosol black carbon on filter = 768 ng Mean aerosol black carbon concentration = 51 ng/m3 --- The reference beam showed lamp intensity fluctuations of 38 ppm. --- Report for lamp 3 (520 nm): . Ending voltages: sen(beam) = .939 sen(zero) = 0.021 . ref(beam) = 2.456 ref(zero) = 0.021 . Optical attenuation of filter deposit = 42 . Total aerosol black carbon on filter = 755 ng Mean aerosol black carbon concentration = 50 ng/m3 --- The reference beam showed lamp intensity fluctuations of 40 ppm. --- Report for lamp 4 (590 nm): . Ending voltages: sen(beam) = 1.372 sen(zero) = 0.021 . ref(beam) = 1.277 ref(zero) = 0.021 . Optical attenuation of filter deposit = 38 . Total aerosol black carbon on filter = 770 ng Mean aerosol black carbon concentration = 51 ng/m3 --- The reference beam showed lamp intensity fluctuations of 136 ppm. --- Report for lamp 5 (660 nm): . Ending voltages: sen(beam) = 1.802 sen(zero) = 0.021 . ref(beam) = 2.474 ref(zero) = 0.021 . Optical attenuation of filter deposit = 35 . Total aerosol black carbon on filter = 793 ng Mean aerosol black carbon concentration = 53 ng/m3 --- The reference beam showed lamp intensity fluctuations of 84 ppm. --- Report for lamp 6 (880 nm): . Ending voltages: sen(beam) = 1.858 sen(zero) = 0.021 . ref(beam) = 3.589 ref(zero) = 0.021 . Optical attenuation of filter deposit = 26 . Total aerosol black carbon on filter = 807 ng Mean aerosol black carbon concentration = 54 ng/m3 --- The reference beam showed lamp intensity fluctuations of 94 ppm. --- Report for lamp 7 (950 nm): . Ending voltages: sen(beam) = 1.496 sen(zero) = 0.021 . ref(beam) = 4.706 ref(zero) = 0.021 . Optical attenuation of filter deposit = 24 . Total aerosol black carbon on filter = 786 ng Mean aerosol black carbon concentration = 52 ng/m3 --- The reference beam showed lamp intensity fluctuations of 91 ppm. --- Disk space = 2.874112E+07 bytes free: One entry at every 5 minutes. There is space for 6110 hours ( 255 days) more data --- Disk space = 2.849792E+07 bytes free: One entry at every 5 minutes. There is space for 6058 hours ( 252 days) more data --- 25-jan-12 23:18:55 Tape feeder mechanism advancing for 1 spot(s). --- 25-jan-12 23:21:00 ============================================================= Automatic re-start ============================================================= --- MAGEE SCIEN. AETHALOMETER --- Aethalometer No. 463 --- 25-jan-12 23:29:54 Measurements started Starting voltages: . sen(zero) = 0.021 ref(zero) = 0.021 . Lamp 1 (370 nm): sen(beam) = 1.258 ref(beam) = 2.171 . Lamp 2 (470 nm): sen(beam) = 2.058 ref(beam) = 2.403 . Lamp 3 (520 nm): sen(beam) = 1.355 ref(beam) = 2.454 . Lamp 4 (590 nm): sen(beam) = 1.894 ref(beam) = 1.263 . Lamp 5 (660 nm): sen(beam) = 2.440 ref(beam) = 2.441 . Lamp 6 (880 nm): sen(beam) = 2.324 ref(beam) = 3.569 . Lamp 7 (950 nm): sen(beam) = 1.821 ref(beam) = 4.641 ---