15-apr-10 14:40:00 Measurements ended --- . Number of lamps (L) = 7 . Filter running time = 111.16 hours . Total airflow this filter = 32.65 cubic meters . Mean BC concentration of all lamps = 41 ng/m3 . Report for lamp 1 (370 nm): . Ending voltages: sen(beam) = .498 sen(zero) = 0.021 . ref(beam) = 2.191 ref(zero) = 0.021 . Optical attenuation of filter deposit = 99 . Total aerosol black carbon on filter = 1253 ng Mean aerosol black carbon concentration = 38 ng/m3 --- The reference beam showed lamp intensity fluctuations of 170 ppm. --- Report for lamp 2 (470 nm): . Ending voltages: sen(beam) = .851 sen(zero) = 0.021 . ref(beam) = 2.158 ref(zero) = 0.021 . Optical attenuation of filter deposit = 83 . Total aerosol black carbon on filter = 1346 ng Mean aerosol black carbon concentration = 41 ng/m3 --- The reference beam showed lamp intensity fluctuations of 114 ppm. --- Report for lamp 3 (520 nm): . Ending voltages: sen(beam) = .673 sen(zero) = 0.021 . ref(beam) = 2.457 ref(zero) = 0.021 . Optical attenuation of filter deposit = 74 . Total aerosol black carbon on filter = 1325 ng Mean aerosol black carbon concentration = 40 ng/m3 --- The reference beam showed lamp intensity fluctuations of 62 ppm. --- Report for lamp 4 (590 nm): . Ending voltages: sen(beam) = .911 sen(zero) = 0.021 . ref(beam) = 1.155 ref(zero) = 0.021 . Optical attenuation of filter deposit = 67 . Total aerosol black carbon on filter = 1360 ng Mean aerosol black carbon concentration = 41 ng/m3 --- The reference beam showed lamp intensity fluctuations of 549 ppm. --- Report for lamp 5 (660 nm): . Ending voltages: sen(beam) = 1.511 sen(zero) = 0.021 . ref(beam) = 2.687 ref(zero) = 0.021 . Optical attenuation of filter deposit = 62 . Total aerosol black carbon on filter = 1396 ng Mean aerosol black carbon concentration = 42 ng/m3 --- The reference beam showed lamp intensity fluctuations of 332 ppm. --- Report for lamp 6 (880 nm): . Ending voltages: sen(beam) = 1.426 sen(zero) = 0.021 . ref(beam) = 3.401 ref(zero) = 0.021 . Optical attenuation of filter deposit = 47 . Total aerosol black carbon on filter = 1417 ng Mean aerosol black carbon concentration = 43 ng/m3 --- The reference beam showed lamp intensity fluctuations of 349 ppm. --- Report for lamp 7 (950 nm): . Ending voltages: sen(beam) = 1.176 sen(zero) = 0.021 . ref(beam) = 4.400 ref(zero) = 0.021 . Optical attenuation of filter deposit = 42 . Total aerosol black carbon on filter = 1385 ng Mean aerosol black carbon concentration = 42 ng/m3 --- The reference beam showed lamp intensity fluctuations of 366 ppm. --- Disk space = 2.928077E+07 bytes free: One entry at every 5 minutes. There is space for 6225 hours ( 259 days) more data --- 15-apr-10 14:40:00 Tape feeder mechanism advancing for 1 spot(s). --- ============================================================= --- MAGEE SCIEN. AETHALOMETER --- Aethalometer No. 463 --- 15-apr-10 14:54:54 Measurements started Starting voltages: . sen(zero) = 0.021 ref(zero) = 0.021 . Lamp 1 (370 nm): sen(beam) = 1.362 ref(beam) = 2.143 . Lamp 2 (470 nm): sen(beam) = 2.012 ref(beam) = 2.122 . Lamp 3 (520 nm): sen(beam) = 1.461 ref(beam) = 2.416 . Lamp 4 (590 nm): sen(beam) = 1.814 ref(beam) = 1.132 . Lamp 5 (660 nm): sen(beam) = 2.882 ref(beam) = 2.644 . Lamp 6 (880 nm): sen(beam) = 2.325 ref(beam) = 3.332 . Lamp 7 (950 nm): sen(beam) = 1.838 ref(beam) = 4.356 ---