04-dec-11 15:00:00 Measurements ended --- . Number of lamps (L) = 7 . Filter running time = 43.58 hours . Total airflow this filter = 12.78 cubic meters . Mean BC concentration of all lamps = 105 ng/m3 . Report for lamp 1 (370 nm): . Ending voltages: sen(beam) = .504 sen(zero) = 0.021 . ref(beam) = 2.274 ref(zero) = 0.021 . Optical attenuation of filter deposit = 99 . Total aerosol black carbon on filter = 1255 ng Mean aerosol black carbon concentration = 98 ng/m3 --- The reference beam showed lamp intensity fluctuations of 45 ppm. --- Report for lamp 2 (470 nm): . Ending voltages: sen(beam) = .938 sen(zero) = 0.021 . ref(beam) = 2.468 ref(zero) = 0.021 . Optical attenuation of filter deposit = 82 . Total aerosol black carbon on filter = 1332 ng Mean aerosol black carbon concentration = 104 ng/m3 --- The reference beam showed lamp intensity fluctuations of 31 ppm. --- Report for lamp 3 (520 nm): . Ending voltages: sen(beam) = .684 sen(zero) = 0.021 . ref(beam) = 2.526 ref(zero) = 0.021 . Optical attenuation of filter deposit = 73 . Total aerosol black carbon on filter = 1307 ng Mean aerosol black carbon concentration = 102 ng/m3 --- The reference beam showed lamp intensity fluctuations of 31 ppm. --- Report for lamp 4 (590 nm): . Ending voltages: sen(beam) = 1.036 sen(zero) = 0.021 . ref(beam) = 1.323 ref(zero) = 0.021 . Optical attenuation of filter deposit = 65 . Total aerosol black carbon on filter = 1330 ng Mean aerosol black carbon concentration = 104 ng/m3 --- The reference beam showed lamp intensity fluctuations of 108 ppm. --- Report for lamp 5 (660 nm): . Ending voltages: sen(beam) = 1.377 sen(zero) = 0.021 . ref(beam) = 2.523 ref(zero) = 0.021 . Optical attenuation of filter deposit = 61 . Total aerosol black carbon on filter = 1380 ng Mean aerosol black carbon concentration = 108 ng/m3 --- The reference beam showed lamp intensity fluctuations of 72 ppm. --- Report for lamp 6 (880 nm): . Ending voltages: sen(beam) = 1.511 sen(zero) = 0.021 . ref(beam) = 3.714 ref(zero) = 0.021 . Optical attenuation of filter deposit = 46 . Total aerosol black carbon on filter = 1412 ng Mean aerosol black carbon concentration = 110 ng/m3 --- The reference beam showed lamp intensity fluctuations of 80 ppm. --- Report for lamp 7 (950 nm): . Ending voltages: sen(beam) = 1.232 sen(zero) = 0.021 . ref(beam) = 4.798 ref(zero) = 0.021 . Optical attenuation of filter deposit = 42 . Total aerosol black carbon on filter = 1393 ng Mean aerosol black carbon concentration = 109 ng/m3 --- The reference beam showed lamp intensity fluctuations of 78 ppm. --- Disk space = 1.729229E+07 bytes free: One entry at every 5 minutes. There is space for 3676 hours ( 153 days) more data --- 04-dec-11 15:00:00 Tape feeder mechanism advancing for 1 spot(s). --- ============================================================= --- MAGEE SCIEN. AETHALOMETER --- Aethalometer No. 463 --- 04-dec-11 15:14:54 Measurements started Starting voltages: . sen(zero) = 0.021 ref(zero) = 0.021 . Lamp 1 (370 nm): sen(beam) = 1.298 ref(beam) = 2.239 . Lamp 2 (470 nm): sen(beam) = 2.096 ref(beam) = 2.442 . Lamp 3 (520 nm): sen(beam) = 1.390 ref(beam) = 2.505 . Lamp 4 (590 nm): sen(beam) = 1.973 ref(beam) = 1.303 . Lamp 5 (660 nm): sen(beam) = 2.491 ref(beam) = 2.497 . Lamp 6 (880 nm): sen(beam) = 2.392 ref(beam) = 3.664 . Lamp 7 (950 nm): sen(beam) = 1.850 ref(beam) = 4.755 ---