19-mar-12 04:00:00 Measurements ended --- . Number of lamps (L) = 7 . Filter running time = 77 hours . Total airflow this filter = 22.58 cubic meters . Mean BC concentration of all lamps = 62 ng/m3 . Report for lamp 1 (370 nm): . Ending voltages: sen(beam) = .514 sen(zero) = 0.021 . ref(beam) = 2.244 ref(zero) = 0.021 . Optical attenuation of filter deposit = 99 . Total aerosol black carbon on filter = 1254 ng Mean aerosol black carbon concentration = 55 ng/m3 --- The reference beam showed lamp intensity fluctuations of 42 ppm. --- Report for lamp 2 (470 nm): . Ending voltages: sen(beam) = .942 sen(zero) = 0.021 . ref(beam) = 2.463 ref(zero) = 0.021 . Optical attenuation of filter deposit = 84 . Total aerosol black carbon on filter = 1359 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) = .672 sen(zero) = 0.021 . ref(beam) = 2.491 ref(zero) = 0.021 . Optical attenuation of filter deposit = 76 . Total aerosol black carbon on filter = 1361 ng Mean aerosol black carbon concentration = 60 ng/m3 --- The reference beam showed lamp intensity fluctuations of 32 ppm. --- Report for lamp 4 (590 nm): . Ending voltages: sen(beam) = .978 sen(zero) = 0.021 . ref(beam) = 1.276 ref(zero) = 0.021 . Optical attenuation of filter deposit = 70 . Total aerosol black carbon on filter = 1411 ng Mean aerosol black carbon concentration = 62 ng/m3 --- The reference beam showed lamp intensity fluctuations of 115 ppm. --- Report for lamp 5 (660 nm): . Ending voltages: sen(beam) = 1.327 sen(zero) = 0.021 . ref(beam) = 2.485 ref(zero) = 0.021 . Optical attenuation of filter deposit = 65 . Total aerosol black carbon on filter = 1469 ng Mean aerosol black carbon concentration = 65 ng/m3 --- The reference beam showed lamp intensity fluctuations of 74 ppm. --- Report for lamp 6 (880 nm): . Ending voltages: sen(beam) = 1.423 sen(zero) = 0.021 . ref(beam) = 3.610 ref(zero) = 0.021 . Optical attenuation of filter deposit = 51 . Total aerosol black carbon on filter = 1538 ng Mean aerosol black carbon concentration = 68 ng/m3 --- The reference beam showed lamp intensity fluctuations of 80 ppm. --- Report for lamp 7 (950 nm): . Ending voltages: sen(beam) = 1.183 sen(zero) = 0.021 . ref(beam) = 4.733 ref(zero) = 0.021 . Optical attenuation of filter deposit = 46 . Total aerosol black carbon on filter = 1507 ng Mean aerosol black carbon concentration = 66 ng/m3 --- The reference beam showed lamp intensity fluctuations of 77 ppm. --- Disk space = 2.947942E+07 bytes free: One entry at every 5 minutes. There is space for 6267 hours ( 261 days) more data --- 19-mar-12 04:00:00 Tape feeder mechanism advancing for 1 spot(s). --- ============================================================= --- MAGEE SCIEN. AETHALOMETER --- Aethalometer No. 463 --- 19-mar-12 04:14:54 Measurements started Starting voltages: . sen(zero) = 0.021 ref(zero) = 0.021 . Lamp 1 (370 nm): sen(beam) = .822 ref(beam) = 2.246 . Lamp 2 (470 nm): sen(beam) = 1.394 ref(beam) = 2.467 . Lamp 3 (520 nm): sen(beam) = .949 ref(beam) = 2.497 . Lamp 4 (590 nm): sen(beam) = 1.340 ref(beam) = 1.264 . Lamp 5 (660 nm): sen(beam) = 1.697 ref(beam) = 2.487 . Lamp 6 (880 nm): sen(beam) = 1.828 ref(beam) = 3.596 . Lamp 7 (950 nm): sen(beam) = 1.435 ref(beam) = 4.731 ---