16-apr-11 05:05:00 Measurements ended --- . Number of lamps (L) = 7 . Filter running time = 45.41 hours . Total airflow this filter = 13.32 cubic meters . Mean BC concentration of all lamps = 102 ng/m3 . Report for lamp 1 (370 nm): . Ending voltages: sen(beam) = .488 sen(zero) = 0.021 . ref(beam) = 2.161 ref(zero) = 0.021 . Optical attenuation of filter deposit = 99 . Total aerosol black carbon on filter = 1253 ng Mean aerosol black carbon concentration = 94 ng/m3 --- The reference beam showed lamp intensity fluctuations of 93 ppm. --- Report for lamp 2 (470 nm): . Ending voltages: sen(beam) = .916 sen(zero) = 0.021 . ref(beam) = 2.377 ref(zero) = 0.021 . Optical attenuation of filter deposit = 83 . Total aerosol black carbon on filter = 1343 ng Mean aerosol black carbon concentration = 101 ng/m3 --- The reference beam showed lamp intensity fluctuations of 66 ppm. --- Report for lamp 3 (520 nm): . Ending voltages: sen(beam) = .664 sen(zero) = 0.021 . ref(beam) = 2.452 ref(zero) = 0.021 . Optical attenuation of filter deposit = 74 . Total aerosol black carbon on filter = 1321 ng Mean aerosol black carbon concentration = 99 ng/m3 --- The reference beam showed lamp intensity fluctuations of 49 ppm. --- Report for lamp 4 (590 nm): . Ending voltages: sen(beam) = .932 sen(zero) = 0.021 . ref(beam) = 1.192 ref(zero) = 0.021 . Optical attenuation of filter deposit = 67 . Total aerosol black carbon on filter = 1362 ng Mean aerosol black carbon concentration = 102 ng/m3 --- The reference beam showed lamp intensity fluctuations of 251 ppm. --- Report for lamp 5 (660 nm): . Ending voltages: sen(beam) = 1.360 sen(zero) = 0.021 . ref(beam) = 2.455 ref(zero) = 0.021 . Optical attenuation of filter deposit = 62 . Total aerosol black carbon on filter = 1406 ng Mean aerosol black carbon concentration = 105 ng/m3 --- The reference beam showed lamp intensity fluctuations of 153 ppm. --- Report for lamp 6 (880 nm): . Ending voltages: sen(beam) = 1.404 sen(zero) = 0.021 . ref(beam) = 3.438 ref(zero) = 0.021 . Optical attenuation of filter deposit = 48 . Total aerosol black carbon on filter = 1454 ng Mean aerosol black carbon concentration = 109 ng/m3 --- The reference beam showed lamp intensity fluctuations of 173 ppm. --- Report for lamp 7 (950 nm): . Ending voltages: sen(beam) = 1.147 sen(zero) = 0.021 . ref(beam) = 4.443 ref(zero) = 0.021 . Optical attenuation of filter deposit = 44 . Total aerosol black carbon on filter = 1439 ng Mean aerosol black carbon concentration = 108 ng/m3 --- The reference beam showed lamp intensity fluctuations of 172 ppm. --- Disk space = 1.980826E+07 bytes free: One entry at every 5 minutes. There is space for 4211 hours ( 175 days) more data --- 16-apr-11 05:05:00 Tape feeder mechanism advancing for 1 spot(s). --- ============================================================= --- MAGEE SCIEN. AETHALOMETER --- Aethalometer No. 463 --- 16-apr-11 05:19:54 Measurements started Starting voltages: . sen(zero) = 0.021 ref(zero) = 0.021 . Lamp 1 (370 nm): sen(beam) = 1.266 ref(beam) = 2.162 . Lamp 2 (470 nm): sen(beam) = 2.063 ref(beam) = 2.392 . Lamp 3 (520 nm): sen(beam) = 1.378 ref(beam) = 2.483 . Lamp 4 (590 nm): sen(beam) = 1.794 ref(beam) = 1.195 . Lamp 5 (660 nm): sen(beam) = 2.496 ref(beam) = 2.468 . Lamp 6 (880 nm): sen(beam) = 2.256 ref(beam) = 3.471 . Lamp 7 (950 nm): sen(beam) = 1.756 ref(beam) = 4.450 ---