11-apr-11 04:30:00 Measurements ended --- . Number of lamps (L) = 7 . Filter running time = 77.33 hours . Total airflow this filter = 22.69 cubic meters . Mean BC concentration of all lamps = 57 ng/m3 . Report for lamp 1 (370 nm): . Ending voltages: sen(beam) = .503 sen(zero) = 0.021 . ref(beam) = 2.190 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 39 ppm. --- Report for lamp 2 (470 nm): . Ending voltages: sen(beam) = .974 sen(zero) = 0.021 . ref(beam) = 2.409 ref(zero) = 0.021 . Optical attenuation of filter deposit = 78 . Total aerosol black carbon on filter = 1265 ng Mean aerosol black carbon concentration = 55 ng/m3 --- The reference beam showed lamp intensity fluctuations of 31 ppm. --- Report for lamp 3 (520 nm): . Ending voltages: sen(beam) = .707 sen(zero) = 0.021 . ref(beam) = 2.480 ref(zero) = 0.021 . Optical attenuation of filter deposit = 69 . Total aerosol black carbon on filter = 1234 ng Mean aerosol black carbon concentration = 54 ng/m3 --- The reference beam showed lamp intensity fluctuations of 27 ppm. --- Report for lamp 4 (590 nm): . Ending voltages: sen(beam) = 1.037 sen(zero) = 0.021 . ref(beam) = 1.253 ref(zero) = 0.021 . Optical attenuation of filter deposit = 62 . Total aerosol black carbon on filter = 1259 ng Mean aerosol black carbon concentration = 55 ng/m3 --- The reference beam showed lamp intensity fluctuations of 93 ppm. --- Report for lamp 5 (660 nm): . Ending voltages: sen(beam) = 1.475 sen(zero) = 0.021 . ref(beam) = 2.536 ref(zero) = 0.021 . Optical attenuation of filter deposit = 57 . Total aerosol black carbon on filter = 1304 ng Mean aerosol black carbon concentration = 57 ng/m3 --- The reference beam showed lamp intensity fluctuations of 61 ppm. --- Report for lamp 6 (880 nm): . Ending voltages: sen(beam) = 1.505 sen(zero) = 0.021 . ref(beam) = 3.569 ref(zero) = 0.021 . Optical attenuation of filter deposit = 45 . Total aerosol black carbon on filter = 1366 ng Mean aerosol black carbon concentration = 60 ng/m3 --- The reference beam showed lamp intensity fluctuations of 69 ppm. --- Report for lamp 7 (950 nm): . Ending voltages: sen(beam) = 1.218 sen(zero) = 0.021 . ref(beam) = 4.603 ref(zero) = 0.021 . Optical attenuation of filter deposit = 42 . Total aerosol black carbon on filter = 1370 ng Mean aerosol black carbon concentration = 60 ng/m3 --- The reference beam showed lamp intensity fluctuations of 67 ppm. --- Disk space = 2.052966E+07 bytes free: One entry at every 5 minutes. There is space for 4364 hours ( 182 days) more data --- 11-apr-11 04:30:00 Tape feeder mechanism advancing for 1 spot(s). --- ============================================================= --- MAGEE SCIEN. AETHALOMETER --- Aethalometer No. 463 --- 11-apr-11 04:44:54 Measurements started Starting voltages: . sen(zero) = 0.021 ref(zero) = 0.021 . Lamp 1 (370 nm): sen(beam) = 1.329 ref(beam) = 2.180 . Lamp 2 (470 nm): sen(beam) = 2.142 ref(beam) = 2.423 . Lamp 3 (520 nm): sen(beam) = 1.422 ref(beam) = 2.501 . Lamp 4 (590 nm): sen(beam) = 1.932 ref(beam) = 1.254 . Lamp 5 (660 nm): sen(beam) = 2.642 ref(beam) = 2.559 . Lamp 6 (880 nm): sen(beam) = 2.381 ref(beam) = 3.601 . Lamp 7 (950 nm): sen(beam) = 1.861 ref(beam) = 4.619 ---