13-jan-13 11:05:00 Measurements ended --- . Number of lamps (L) = 7 . Filter running time = 77.83 hours . Total airflow this filter = 22.81 cubic meters . Mean BC concentration of all lamps = 61 ng/m3 . Report for lamp 1 (370 nm): . Ending voltages: sen(beam) = .311 sen(zero) = 0.021 . ref(beam) = 2.260 ref(zero) = 0.021 . Optical attenuation of filter deposit = 99 . Total aerosol black carbon on filter = 1253 ng Mean aerosol black carbon concentration = 55 ng/m3 --- The reference beam showed lamp intensity fluctuations of 51 ppm. --- Report for lamp 2 (470 nm): . Ending voltages: sen(beam) = .602 sen(zero) = 0.021 . ref(beam) = 2.453 ref(zero) = 0.021 . Optical attenuation of filter deposit = 84 . Total aerosol black carbon on filter = 1352 ng Mean aerosol black carbon concentration = 59 ng/m3 --- The reference beam showed lamp intensity fluctuations of 38 ppm. --- Report for lamp 3 (520 nm): . Ending voltages: sen(beam) = .448 sen(zero) = 0.021 . ref(beam) = 2.491 ref(zero) = 0.021 . Optical attenuation of filter deposit = 75 . Total aerosol black carbon on filter = 1341 ng Mean aerosol black carbon concentration = 58 ng/m3 --- The reference beam showed lamp intensity fluctuations of 36 ppm. --- Report for lamp 4 (590 nm): . Ending voltages: sen(beam) = .731 sen(zero) = 0.021 . ref(beam) = 1.364 ref(zero) = 0.021 . Optical attenuation of filter deposit = 68 . Total aerosol black carbon on filter = 1373 ng Mean aerosol black carbon concentration = 60 ng/m3 --- The reference beam showed lamp intensity fluctuations of 164 ppm. --- Report for lamp 5 (660 nm): . Ending voltages: sen(beam) = .897 sen(zero) = 0.021 . ref(beam) = 2.420 ref(zero) = 0.021 . Optical attenuation of filter deposit = 63 . Total aerosol black carbon on filter = 1433 ng Mean aerosol black carbon concentration = 62 ng/m3 --- The reference beam showed lamp intensity fluctuations of 99 ppm. --- Report for lamp 6 (880 nm): . Ending voltages: sen(beam) = 1.140 sen(zero) = 0.021 . ref(beam) = 3.746 ref(zero) = 0.021 . Optical attenuation of filter deposit = 50 . Total aerosol black carbon on filter = 1521 ng Mean aerosol black carbon concentration = 66 ng/m3 --- The reference beam showed lamp intensity fluctuations of 111 ppm. --- Report for lamp 7 (950 nm): . Ending voltages: sen(beam) = .940 sen(zero) = 0.021 . ref(beam) = 4.829 ref(zero) = 0.021 . Optical attenuation of filter deposit = 45 . Total aerosol black carbon on filter = 1487 ng Mean aerosol black carbon concentration = 65 ng/m3 --- The reference beam showed lamp intensity fluctuations of 109 ppm. --- Disk space = 2.674176E+07 bytes free: One entry at every 5 minutes. There is space for 5685 hours ( 237 days) more data --- 13-jan-13 11:05:00 Tape feeder mechanism advancing for 1 spot(s). --- ============================================================= --- MAGEE SCIEN. AETHALOMETER --- Aethalometer No. 463 --- 13-jan-13 11:19:54 Measurements started Starting voltages: . sen(zero) = 0.021 ref(zero) = 0.021 . Lamp 1 (370 nm): sen(beam) = 1.275 ref(beam) = 2.220 . Lamp 2 (470 nm): sen(beam) = 2.071 ref(beam) = 2.432 . Lamp 3 (520 nm): sen(beam) = 1.349 ref(beam) = 2.461 . Lamp 4 (590 nm): sen(beam) = 2.015 ref(beam) = 1.338 . Lamp 5 (660 nm): sen(beam) = 2.378 ref(beam) = 2.401 . Lamp 6 (880 nm): sen(beam) = 2.383 ref(beam) = 3.689 . Lamp 7 (950 nm): sen(beam) = 1.849 ref(beam) = 4.768 ---