21-dec-11 03:20:00 Measurements ended --- . Number of lamps (L) = 7 . Filter running time = 75.91 hours . Total airflow this filter = 22.26 cubic meters . Mean BC concentration of all lamps = 61 ng/m3 . Report for lamp 1 (370 nm): . Ending voltages: sen(beam) = .489 sen(zero) = 0.021 . ref(beam) = 2.210 ref(zero) = 0.021 . Optical attenuation of filter deposit = 99 . Total aerosol black carbon on filter = 1253 ng Mean aerosol black carbon concentration = 56 ng/m3 --- The reference beam showed lamp intensity fluctuations of 37 ppm. --- Report for lamp 2 (470 nm): . Ending voltages: sen(beam) = .907 sen(zero) = 0.021 . ref(beam) = 2.406 ref(zero) = 0.021 . Optical attenuation of filter deposit = 83 . Total aerosol black carbon on filter = 1337 ng Mean aerosol black carbon concentration = 60 ng/m3 --- The reference beam showed lamp intensity fluctuations of 33 ppm. --- Report for lamp 3 (520 nm): . Ending voltages: sen(beam) = .656 sen(zero) = 0.021 . ref(beam) = 2.469 ref(zero) = 0.021 . Optical attenuation of filter deposit = 74 . Total aerosol black carbon on filter = 1328 ng Mean aerosol black carbon concentration = 59 ng/m3 --- The reference beam showed lamp intensity fluctuations of 30 ppm. --- Report for lamp 4 (590 nm): . Ending voltages: sen(beam) = .942 sen(zero) = 0.021 . ref(beam) = 1.234 ref(zero) = 0.021 . Optical attenuation of filter deposit = 67 . Total aerosol black carbon on filter = 1366 ng Mean aerosol black carbon concentration = 61 ng/m3 --- The reference beam showed lamp intensity fluctuations of 94 ppm. --- Report for lamp 5 (660 nm): . Ending voltages: sen(beam) = 1.288 sen(zero) = 0.021 . ref(beam) = 2.397 ref(zero) = 0.021 . Optical attenuation of filter deposit = 62 . Total aerosol black carbon on filter = 1406 ng Mean aerosol black carbon concentration = 63 ng/m3 --- The reference beam showed lamp intensity fluctuations of 58 ppm. --- Report for lamp 6 (880 nm): . Ending voltages: sen(beam) = 1.406 sen(zero) = 0.021 . ref(beam) = 3.512 ref(zero) = 0.021 . Optical attenuation of filter deposit = 48 . Total aerosol black carbon on filter = 1461 ng Mean aerosol black carbon concentration = 65 ng/m3 --- The reference beam showed lamp intensity fluctuations of 62 ppm. --- Report for lamp 7 (950 nm): . Ending voltages: sen(beam) = 1.162 sen(zero) = 0.021 . ref(beam) = 4.569 ref(zero) = 0.021 . Optical attenuation of filter deposit = 43 . Total aerosol black carbon on filter = 1418 ng Mean aerosol black carbon concentration = 63 ng/m3 --- The reference beam showed lamp intensity fluctuations of 65 ppm. --- Disk space = 1.561293E+07 bytes free: One entry at every 5 minutes. There is space for 3319 hours ( 138 days) more data --- 21-dec-11 03:20:00 Tape feeder mechanism advancing for 1 spot(s). --- ============================================================= --- MAGEE SCIEN. AETHALOMETER --- Aethalometer No. 463 --- 21-dec-11 03:34:54 Measurements started Starting voltages: . sen(zero) = 0.021 ref(zero) = 0.021 . Lamp 1 (370 nm): sen(beam) = 1.284 ref(beam) = 2.201 . Lamp 2 (470 nm): sen(beam) = 2.070 ref(beam) = 2.427 . Lamp 3 (520 nm): sen(beam) = 1.382 ref(beam) = 2.488 . Lamp 4 (590 nm): sen(beam) = 1.857 ref(beam) = 1.234 . Lamp 5 (660 nm): sen(beam) = 2.399 ref(beam) = 2.425 . Lamp 6 (880 nm): sen(beam) = 2.301 ref(beam) = 3.541 . Lamp 7 (950 nm): sen(beam) = 1.787 ref(beam) = 4.603 ---