19-apr-12 08:40:00 Measurements ended --- . Number of lamps (L) = 7 . Filter running time = 86.75 hours . Total airflow this filter = 25.43 cubic meters . Mean BC concentration of all lamps = 54 ng/m3 . Report for lamp 1 (370 nm): . Ending voltages: sen(beam) = .509 sen(zero) = 0.021 . ref(beam) = 2.249 ref(zero) = 0.021 . Optical attenuation of filter deposit = 99 . Total aerosol black carbon on filter = 1253 ng Mean aerosol black carbon concentration = 49 ng/m3 --- The reference beam showed lamp intensity fluctuations of 131 ppm. --- Report for lamp 2 (470 nm): . Ending voltages: sen(beam) = .926 sen(zero) = 0.021 . ref(beam) = 2.434 ref(zero) = 0.021 . Optical attenuation of filter deposit = 84 . Total aerosol black carbon on filter = 1353 ng Mean aerosol black carbon concentration = 53 ng/m3 --- The reference beam showed lamp intensity fluctuations of 84 ppm. --- Report for lamp 3 (520 nm): . Ending voltages: sen(beam) = .670 sen(zero) = 0.021 . ref(beam) = 2.504 ref(zero) = 0.021 . Optical attenuation of filter deposit = 75 . Total aerosol black carbon on filter = 1346 ng Mean aerosol black carbon concentration = 52 ng/m3 --- The reference beam showed lamp intensity fluctuations of 59 ppm. --- Report for lamp 4 (590 nm): . Ending voltages: sen(beam) = .956 sen(zero) = 0.021 . ref(beam) = 1.242 ref(zero) = 0.021 . Optical attenuation of filter deposit = 68 . Total aerosol black carbon on filter = 1380 ng Mean aerosol black carbon concentration = 54 ng/m3 --- The reference beam showed lamp intensity fluctuations of 408 ppm. --- Report for lamp 5 (660 nm): . Ending voltages: sen(beam) = 1.309 sen(zero) = 0.021 . ref(beam) = 2.396 ref(zero) = 0.021 . Optical attenuation of filter deposit = 63 . Total aerosol black carbon on filter = 1423 ng Mean aerosol black carbon concentration = 56 ng/m3 --- The reference beam showed lamp intensity fluctuations of 233 ppm. --- Report for lamp 6 (880 nm): . Ending voltages: sen(beam) = 1.420 sen(zero) = 0.021 . ref(beam) = 3.547 ref(zero) = 0.021 . Optical attenuation of filter deposit = 49 . Total aerosol black carbon on filter = 1478 ng Mean aerosol black carbon concentration = 58 ng/m3 --- The reference beam showed lamp intensity fluctuations of 254 ppm. --- Report for lamp 7 (950 nm): . Ending voltages: sen(beam) = 1.171 sen(zero) = 0.021 . ref(beam) = 4.551 ref(zero) = 0.021 . Optical attenuation of filter deposit = 44 . Total aerosol black carbon on filter = 1435 ng Mean aerosol black carbon concentration = 56 ng/m3 --- The reference beam showed lamp intensity fluctuations of 251 ppm. --- Disk space = 2.598144E+07 bytes free: One entry at every 5 minutes. There is space for 5523 hours ( 230 days) more data --- 19-apr-12 08:40:00 Tape feeder mechanism advancing for 1 spot(s). --- ============================================================= --- MAGEE SCIEN. AETHALOMETER --- Aethalometer No. 463 --- 19-apr-12 08:54:54 Measurements started Starting voltages: . sen(zero) = 0.021 ref(zero) = 0.021 . Lamp 1 (370 nm): sen(beam) = 1.351 ref(beam) = 2.213 . Lamp 2 (470 nm): sen(beam) = 2.164 ref(beam) = 2.430 . Lamp 3 (520 nm): sen(beam) = 1.443 ref(beam) = 2.495 . Lamp 4 (590 nm): sen(beam) = 1.915 ref(beam) = 1.230 . Lamp 5 (660 nm): sen(beam) = 2.488 ref(beam) = 2.400 . Lamp 6 (880 nm): sen(beam) = 2.340 ref(beam) = 3.527 . Lamp 7 (950 nm): sen(beam) = 1.826 ref(beam) = 4.556 ---