19-jan-12 05:10:00 Measurements ended --- . Number of lamps (L) = 7 . Filter running time = 53.66 hours . Total airflow this filter = 15.74 cubic meters . Mean BC concentration of all lamps = 88 ng/m3 . Report for lamp 1 (370 nm): . Ending voltages: sen(beam) = .445 sen(zero) = 0.021 . ref(beam) = 2.189 ref(zero) = 0.021 . Optical attenuation of filter deposit = 99 . Total aerosol black carbon on filter = 1253 ng Mean aerosol black carbon concentration = 79 ng/m3 --- The reference beam showed lamp intensity fluctuations of 48 ppm. --- Report for lamp 2 (470 nm): . Ending voltages: sen(beam) = .838 sen(zero) = 0.021 . ref(beam) = 2.404 ref(zero) = 0.021 . Optical attenuation of filter deposit = 84 . Total aerosol black carbon on filter = 1355 ng Mean aerosol black carbon concentration = 86 ng/m3 --- The reference beam showed lamp intensity fluctuations of 38 ppm. --- Report for lamp 3 (520 nm): . Ending voltages: sen(beam) = .613 sen(zero) = 0.021 . ref(beam) = 2.457 ref(zero) = 0.021 . Optical attenuation of filter deposit = 75 . Total aerosol black carbon on filter = 1342 ng Mean aerosol black carbon concentration = 85 ng/m3 --- The reference beam showed lamp intensity fluctuations of 36 ppm. --- Report for lamp 4 (590 nm): . Ending voltages: sen(beam) = .873 sen(zero) = 0.021 . ref(beam) = 1.206 ref(zero) = 0.021 . Optical attenuation of filter deposit = 68 . Total aerosol black carbon on filter = 1390 ng Mean aerosol black carbon concentration = 88 ng/m3 --- The reference beam showed lamp intensity fluctuations of 120 ppm. --- Report for lamp 5 (660 nm): . Ending voltages: sen(beam) = 1.186 sen(zero) = 0.021 . ref(beam) = 2.375 ref(zero) = 0.021 . Optical attenuation of filter deposit = 63 . Total aerosol black carbon on filter = 1430 ng Mean aerosol black carbon concentration = 90 ng/m3 --- The reference beam showed lamp intensity fluctuations of 74 ppm. --- Report for lamp 6 (880 nm): . Ending voltages: sen(beam) = 1.330 sen(zero) = 0.021 . ref(beam) = 3.456 ref(zero) = 0.021 . Optical attenuation of filter deposit = 48 . Total aerosol black carbon on filter = 1471 ng Mean aerosol black carbon concentration = 93 ng/m3 --- The reference beam showed lamp intensity fluctuations of 79 ppm. --- Report for lamp 7 (950 nm): . Ending voltages: sen(beam) = 1.083 sen(zero) = 0.021 . ref(beam) = 4.523 ref(zero) = 0.021 . Optical attenuation of filter deposit = 44 . Total aerosol black carbon on filter = 1444 ng Mean aerosol black carbon concentration = 91 ng/m3 --- The reference beam showed lamp intensity fluctuations of 76 ppm. --- Disk space = 2.950554E+07 bytes free: One entry at every 5 minutes. There is space for 6272 hours ( 261 days) more data --- 19-jan-12 05:10:00 Tape feeder mechanism advancing for 1 spot(s). --- ============================================================= --- MAGEE SCIEN. AETHALOMETER --- Aethalometer No. 463 --- 19-jan-12 05:24:54 Measurements started Starting voltages: . sen(zero) = 0.021 ref(zero) = 0.021 . Lamp 1 (370 nm): sen(beam) = 1.273 ref(beam) = 2.187 . Lamp 2 (470 nm): sen(beam) = 2.072 ref(beam) = 2.423 . Lamp 3 (520 nm): sen(beam) = 1.382 ref(beam) = 2.489 . Lamp 4 (590 nm): sen(beam) = 1.803 ref(beam) = 1.209 . Lamp 5 (660 nm): sen(beam) = 2.375 ref(beam) = 2.396 . Lamp 6 (880 nm): sen(beam) = 2.252 ref(beam) = 3.506 . Lamp 7 (950 nm): sen(beam) = 1.760 ref(beam) = 4.530 ---