11-mar-13 22:08:02 Measurements ended --- . Number of lamps (L) = 7 . Filter running time = 74.66 hours . Total airflow this filter = 21.88 cubic meters . Mean BC concentration of all lamps = 42 ng/m3 . Report for lamp 1 (370 nm): . Ending voltages: sen(beam) = .655 sen(zero) = 0.021 . ref(beam) = 2.113 ref(zero) = 0.021 . Optical attenuation of filter deposit = 66 . Total aerosol black carbon on filter = 847 ng Mean aerosol black carbon concentration = 38 ng/m3 --- The reference beam showed lamp intensity fluctuations of 57 ppm. --- Report for lamp 2 (470 nm): . Ending voltages: sen(beam) = 1.183 sen(zero) = 0.021 . ref(beam) = 2.303 ref(zero) = 0.021 . Optical attenuation of filter deposit = 55 . Total aerosol black carbon on filter = 893 ng Mean aerosol black carbon concentration = 40 ng/m3 --- The reference beam showed lamp intensity fluctuations of 43 ppm. --- Report for lamp 3 (520 nm): . Ending voltages: sen(beam) = .819 sen(zero) = 0.021 . ref(beam) = 2.373 ref(zero) = 0.021 . Optical attenuation of filter deposit = 50 . Total aerosol black carbon on filter = 893 ng Mean aerosol black carbon concentration = 40 ng/m3 --- The reference beam showed lamp intensity fluctuations of 36 ppm. --- Report for lamp 4 (590 nm): . Ending voltages: sen(beam) = 1.151 sen(zero) = 0.021 . ref(beam) = 1.181 ref(zero) = 0.021 . Optical attenuation of filter deposit = 46 . Total aerosol black carbon on filter = 929 ng Mean aerosol black carbon concentration = 42 ng/m3 --- The reference beam showed lamp intensity fluctuations of 190 ppm. --- Report for lamp 5 (660 nm): . Ending voltages: sen(beam) = 1.487 sen(zero) = 0.021 . ref(beam) = 2.176 ref(zero) = 0.021 . Optical attenuation of filter deposit = 41 . Total aerosol black carbon on filter = 945 ng Mean aerosol black carbon concentration = 43 ng/m3 --- The reference beam showed lamp intensity fluctuations of 109 ppm. --- Report for lamp 6 (880 nm): . Ending voltages: sen(beam) = 1.578 sen(zero) = 0.021 . ref(beam) = 3.349 ref(zero) = 0.021 . Optical attenuation of filter deposit = 34 . Total aerosol black carbon on filter = 1025 ng Mean aerosol black carbon concentration = 46 ng/m3 --- The reference beam showed lamp intensity fluctuations of 114 ppm. --- Report for lamp 7 (950 nm): . Ending voltages: sen(beam) = 1.273 sen(zero) = 0.021 . ref(beam) = 4.336 ref(zero) = 0.021 . Optical attenuation of filter deposit = 30 . Total aerosol black carbon on filter = 982 ng Mean aerosol black carbon concentration = 44 ng/m3 --- The reference beam showed lamp intensity fluctuations of 111 ppm. --- Disk space = 2.677606E+07 bytes free: One entry at every 5 minutes. There is space for 5692 hours ( 237 days) more data --- Disk space = 2.642176E+07 bytes free: One entry at every 5 minutes. There is space for 5617 hours ( 234 days) more data --- 11-mar-13 22:09:14 Tape feeder mechanism advancing for 1 spot(s). --- 11-mar-13 22:11:00 ============================================================= Automatic re-start ============================================================= --- MAGEE SCIEN. AETHALOMETER --- Aethalometer No. 463 --- 11-mar-13 22:19:54 Measurements started Starting voltages: . sen(zero) = 0.021 ref(zero) = 0.021 . Lamp 1 (370 nm): sen(beam) = 1.251 ref(beam) = 2.099 . Lamp 2 (470 nm): sen(beam) = 2.033 ref(beam) = 2.336 . Lamp 3 (520 nm): sen(beam) = 1.328 ref(beam) = 2.376 . Lamp 4 (590 nm): sen(beam) = 1.748 ref(beam) = 1.174 . Lamp 5 (660 nm): sen(beam) = 2.217 ref(beam) = 2.219 . Lamp 6 (880 nm): sen(beam) = 2.160 ref(beam) = 3.362 . Lamp 7 (950 nm): sen(beam) = 1.690 ref(beam) = 4.371 ---