12-mar-10 05:10:00 Measurements ended --- . Number of lamps (L) = 7 . Filter running time = 35.33 hours . Total airflow this filter = 10.45 cubic meters . Mean BC concentration of all lamps = 178 ng/m3 . Report for lamp 1 (370 nm): . Ending voltages: sen(beam) = .209 sen(zero) = 0.021 . ref(beam) = 1.518 ref(zero) = 0.020 . Optical attenuation of filter deposit = 125 . Total aerosol black carbon on filter = 1583 ng Mean aerosol black carbon concentration = 151 ng/m3 --- The reference beam showed lamp intensity fluctuations of 262 ppm. --- Report for lamp 2 (470 nm): . Ending voltages: sen(beam) = .367 sen(zero) = 0.021 . ref(beam) = 1.553 ref(zero) = 0.020 . Optical attenuation of filter deposit = 110 . Total aerosol black carbon on filter = 1771 ng Mean aerosol black carbon concentration = 169 ng/m3 --- The reference beam showed lamp intensity fluctuations of 79 ppm. --- Report for lamp 3 (520 nm): . Ending voltages: sen(beam) = .410 sen(zero) = 0.021 . ref(beam) = 2.040 ref(zero) = 0.020 . Optical attenuation of filter deposit = 100 . Total aerosol black carbon on filter = 1789 ng Mean aerosol black carbon concentration = 171 ng/m3 --- The reference beam showed lamp intensity fluctuations of 66 ppm. --- Report for lamp 4 (590 nm): . Ending voltages: sen(beam) = .412 sen(zero) = 0.021 . ref(beam) = 2.820 ref(zero) = 0.020 . Optical attenuation of filter deposit = 93 . Total aerosol black carbon on filter = 1882 ng Mean aerosol black carbon concentration = 180 ng/m3 --- The reference beam showed lamp intensity fluctuations of 256 ppm. --- Report for lamp 5 (660 nm): . Ending voltages: sen(beam) = .678 sen(zero) = 0.021 . ref(beam) = 2.504 ref(zero) = 0.020 . Optical attenuation of filter deposit = 86 . Total aerosol black carbon on filter = 1954 ng Mean aerosol black carbon concentration = 187 ng/m3 --- The reference beam showed lamp intensity fluctuations of 148 ppm. --- Report for lamp 6 (880 nm): . Ending voltages: sen(beam) = .710 sen(zero) = 0.021 . ref(beam) = 2.357 ref(zero) = 0.020 . Optical attenuation of filter deposit = 68 . Total aerosol black carbon on filter = 2055 ng Mean aerosol black carbon concentration = 196 ng/m3 --- The reference beam showed lamp intensity fluctuations of 197 ppm. --- Report for lamp 7 (950 nm): . Ending voltages: sen(beam) = .677 sen(zero) = 0.021 . ref(beam) = 2.267 ref(zero) = 0.020 . Optical attenuation of filter deposit = 62 . Total aerosol black carbon on filter = 2035 ng Mean aerosol black carbon concentration = 195 ng/m3 --- The reference beam showed lamp intensity fluctuations of 215 ppm. --- Disk space = 2.398167E+08 bytes free: One entry at every 5 minutes. There is space for 50981 hours ( 2124 days) more data --- 12-mar-10 05:10:00 Tape feeder mechanism advancing for 1 spot(s). --- ============================================================= --- MAGEE SCIEN. AETHALOMETER --- Aethalometer No. 774 --- 12-mar-10 05:19:56 Measurements started Starting voltages: . sen(zero) = 0.021 ref(zero) = 0.020 . Lamp 1 (370 nm): sen(beam) = .953 ref(beam) = 1.399 . Lamp 2 (470 nm): sen(beam) = 1.494 ref(beam) = 1.545 . Lamp 3 (520 nm): sen(beam) = 1.576 ref(beam) = 2.040 . Lamp 4 (590 nm): sen(beam) = 1.435 ref(beam) = 2.754 . Lamp 5 (660 nm): sen(beam) = 2.184 ref(beam) = 2.499 . Lamp 6 (880 nm): sen(beam) = 1.754 ref(beam) = 2.360 . Lamp 7 (950 nm): sen(beam) = 1.558 ref(beam) = 2.281 ---