25-nov-11 03:00:00 Measurements ended --- . Number of lamps (L) = 7 . Filter running time = 27.16 hours . Total airflow this filter = 7.96 cubic meters . Mean BC concentration of all lamps = 170 ng/m3 . Report for lamp 1 (370 nm): . Ending voltages: sen(beam) = .466 sen(zero) = 0.021 . ref(beam) = 2.218 ref(zero) = 0.021 . Optical attenuation of filter deposit = 99 . Total aerosol black carbon on filter = 1255 ng Mean aerosol black carbon concentration = 158 ng/m3 --- The reference beam showed lamp intensity fluctuations of 35 ppm. --- Report for lamp 2 (470 nm): . Ending voltages: sen(beam) = .881 sen(zero) = 0.021 . ref(beam) = 2.415 ref(zero) = 0.021 . Optical attenuation of filter deposit = 83 . Total aerosol black carbon on filter = 1336 ng Mean aerosol black carbon concentration = 168 ng/m3 --- The reference beam showed lamp intensity fluctuations of 26 ppm. --- Report for lamp 3 (520 nm): . Ending voltages: sen(beam) = .644 sen(zero) = 0.021 . ref(beam) = 2.480 ref(zero) = 0.021 . Optical attenuation of filter deposit = 73 . Total aerosol black carbon on filter = 1315 ng Mean aerosol black carbon concentration = 165 ng/m3 --- The reference beam showed lamp intensity fluctuations of 29 ppm. --- Report for lamp 4 (590 nm): . Ending voltages: sen(beam) = .946 sen(zero) = 0.021 . ref(beam) = 1.255 ref(zero) = 0.021 . Optical attenuation of filter deposit = 67 . Total aerosol black carbon on filter = 1351 ng Mean aerosol black carbon concentration = 170 ng/m3 --- The reference beam showed lamp intensity fluctuations of 72 ppm. --- Report for lamp 5 (660 nm): . Ending voltages: sen(beam) = 1.288 sen(zero) = 0.021 . ref(beam) = 2.429 ref(zero) = 0.021 . Optical attenuation of filter deposit = 62 . Total aerosol black carbon on filter = 1396 ng Mean aerosol black carbon concentration = 175 ng/m3 --- The reference beam showed lamp intensity fluctuations of 44 ppm. --- Report for lamp 6 (880 nm): . Ending voltages: sen(beam) = 1.429 sen(zero) = 0.021 . ref(beam) = 3.569 ref(zero) = 0.021 . Optical attenuation of filter deposit = 47 . Total aerosol black carbon on filter = 1422 ng Mean aerosol black carbon concentration = 179 ng/m3 --- The reference beam showed lamp intensity fluctuations of 52 ppm. --- Report for lamp 7 (950 nm): . Ending voltages: sen(beam) = 1.172 sen(zero) = 0.021 . ref(beam) = 4.613 ref(zero) = 0.021 . Optical attenuation of filter deposit = 43 . Total aerosol black carbon on filter = 1397 ng Mean aerosol black carbon concentration = 175 ng/m3 --- The reference beam showed lamp intensity fluctuations of 50 ppm. --- Disk space = 1.829734E+07 bytes free: One entry at every 5 minutes. There is space for 3890 hours ( 162 days) more data --- 25-nov-11 03:00:00 Tape feeder mechanism advancing for 1 spot(s). --- ============================================================= --- MAGEE SCIEN. AETHALOMETER --- Aethalometer No. 463 --- 25-nov-11 03:14:54 Measurements started Starting voltages: . sen(zero) = 0.021 ref(zero) = 0.021 . Lamp 1 (370 nm): sen(beam) = 1.253 ref(beam) = 2.199 . Lamp 2 (470 nm): sen(beam) = 2.045 ref(beam) = 2.406 . Lamp 3 (520 nm): sen(beam) = 1.355 ref(beam) = 2.477 . Lamp 4 (590 nm): sen(beam) = 1.848 ref(beam) = 1.244 . Lamp 5 (660 nm): sen(beam) = 2.397 ref(beam) = 2.419 . Lamp 6 (880 nm): sen(beam) = 2.287 ref(beam) = 3.549 . Lamp 7 (950 nm): sen(beam) = 1.791 ref(beam) = 4.591 ---