18-dec-12 18:21:26 Measurements ended --- . Number of lamps (L) = 7 . Filter running time = 45.74 hours . Total airflow this filter = 13.4 cubic meters . Mean BC concentration of all lamps = 39 ng/m3 . Report for lamp 1 (370 nm): . Ending voltages: sen(beam) = .706 sen(zero) = 0.021 . ref(beam) = 2.223 ref(zero) = 0.021 . Optical attenuation of filter deposit = 38 . Total aerosol black carbon on filter = 485 ng Mean aerosol black carbon concentration = 36 ng/m3 --- The reference beam showed lamp intensity fluctuations of 42 ppm. --- Report for lamp 2 (470 nm): . Ending voltages: sen(beam) = 1.264 sen(zero) = 0.021 . ref(beam) = 2.430 ref(zero) = 0.021 . Optical attenuation of filter deposit = 31 . Total aerosol black carbon on filter = 513 ng Mean aerosol black carbon concentration = 38 ng/m3 --- The reference beam showed lamp intensity fluctuations of 36 ppm. --- Report for lamp 3 (520 nm): . Ending voltages: sen(beam) = .877 sen(zero) = 0.021 . ref(beam) = 2.468 ref(zero) = 0.021 . Optical attenuation of filter deposit = 28 . Total aerosol black carbon on filter = 508 ng Mean aerosol black carbon concentration = 37 ng/m3 --- The reference beam showed lamp intensity fluctuations of 34 ppm. --- Report for lamp 4 (590 nm): . Ending voltages: sen(beam) = 1.291 sen(zero) = 0.021 . ref(beam) = 1.277 ref(zero) = 0.021 . Optical attenuation of filter deposit = 25 . Total aerosol black carbon on filter = 522 ng Mean aerosol black carbon concentration = 39 ng/m3 --- The reference beam showed lamp intensity fluctuations of 141 ppm. --- Report for lamp 5 (660 nm): . Ending voltages: sen(beam) = 1.603 sen(zero) = 0.021 . ref(beam) = 2.336 ref(zero) = 0.021 . Optical attenuation of filter deposit = 23 . Total aerosol black carbon on filter = 540 ng Mean aerosol black carbon concentration = 40 ng/m3 --- The reference beam showed lamp intensity fluctuations of 83 ppm. --- Report for lamp 6 (880 nm): . Ending voltages: sen(beam) = 1.769 sen(zero) = 0.021 . ref(beam) = 3.582 ref(zero) = 0.021 . Optical attenuation of filter deposit = 18 . Total aerosol black carbon on filter = 563 ng Mean aerosol black carbon concentration = 42 ng/m3 --- The reference beam showed lamp intensity fluctuations of 91 ppm. --- Report for lamp 7 (950 nm): . Ending voltages: sen(beam) = 1.421 sen(zero) = 0.021 . ref(beam) = 4.636 ref(zero) = 0.021 . Optical attenuation of filter deposit = 16 . Total aerosol black carbon on filter = 540 ng Mean aerosol black carbon concentration = 40 ng/m3 --- The reference beam showed lamp intensity fluctuations of 91 ppm. --- Disk space = 2.607872E+07 bytes free: One entry at every 5 minutes. There is space for 5544 hours ( 231 days) more data --- Disk space = 2.58601E+07 bytes free: One entry at every 5 minutes. There is space for 5497 hours ( 229 days) more data --- 18-dec-12 18:49:20 Tape feeder mechanism advancing for 1 spot(s). --- 18-dec-12 18:51:00 ============================================================= Automatic re-start ============================================================= --- MAGEE SCIEN. AETHALOMETER --- Aethalometer No. 463 --- 18-dec-12 18:59:54 Measurements started Starting voltages: . sen(zero) = 0.021 ref(zero) = 0.021 . Lamp 1 (370 nm): sen(beam) = 1.260 ref(beam) = 2.208 . Lamp 2 (470 nm): sen(beam) = 2.054 ref(beam) = 2.432 . Lamp 3 (520 nm): sen(beam) = 1.347 ref(beam) = 2.469 . Lamp 4 (590 nm): sen(beam) = 1.862 ref(beam) = 1.264 . Lamp 5 (660 nm): sen(beam) = 2.300 ref(beam) = 2.344 . Lamp 6 (880 nm): sen(beam) = 2.275 ref(beam) = 3.584 . Lamp 7 (950 nm): sen(beam) = 1.783 ref(beam) = 4.635 ---