01-may-12 18:38:25 Measurements ended --- . Number of lamps (L) = 7 . Filter running time = 46.74 hours . Total airflow this filter = 13.7 cubic meters . Mean BC concentration of all lamps = 35 ng/m3 . Report for lamp 1 (370 nm): . Ending voltages: sen(beam) = .911 sen(zero) = 0.021 . ref(beam) = 2.160 ref(zero) = 0.021 . Optical attenuation of filter deposit = 38 . Total aerosol black carbon on filter = 491 ng Mean aerosol black carbon concentration = 35 ng/m3 --- The reference beam showed lamp intensity fluctuations of 66 ppm. --- Report for lamp 2 (470 nm): . Ending voltages: sen(beam) = 1.563 sen(zero) = 0.021 . ref(beam) = 2.384 ref(zero) = 0.021 . Optical attenuation of filter deposit = 30 . Total aerosol black carbon on filter = 495 ng Mean aerosol black carbon concentration = 36 ng/m3 --- The reference beam showed lamp intensity fluctuations of 46 ppm. --- Report for lamp 3 (520 nm): . Ending voltages: sen(beam) = 1.086 sen(zero) = 0.021 . ref(beam) = 2.443 ref(zero) = 0.021 . Optical attenuation of filter deposit = 26 . Total aerosol black carbon on filter = 477 ng Mean aerosol black carbon concentration = 34 ng/m3 --- The reference beam showed lamp intensity fluctuations of 38 ppm. --- Report for lamp 4 (590 nm): . Ending voltages: sen(beam) = 1.476 sen(zero) = 0.021 . ref(beam) = 1.207 ref(zero) = 0.021 . Optical attenuation of filter deposit = 23 . Total aerosol black carbon on filter = 482 ng Mean aerosol black carbon concentration = 35 ng/m3 --- The reference beam showed lamp intensity fluctuations of 171 ppm. --- Report for lamp 5 (660 nm): . Ending voltages: sen(beam) = 1.960 sen(zero) = 0.021 . ref(beam) = 2.353 ref(zero) = 0.021 . Optical attenuation of filter deposit = 21 . Total aerosol black carbon on filter = 488 ng Mean aerosol black carbon concentration = 35 ng/m3 --- The reference beam showed lamp intensity fluctuations of 104 ppm. --- Report for lamp 6 (880 nm): . Ending voltages: sen(beam) = 1.963 sen(zero) = 0.021 . ref(beam) = 3.458 ref(zero) = 0.021 . Optical attenuation of filter deposit = 16 . Total aerosol black carbon on filter = 483 ng Mean aerosol black carbon concentration = 35 ng/m3 --- The reference beam showed lamp intensity fluctuations of 112 ppm. --- Report for lamp 7 (950 nm): . Ending voltages: sen(beam) = 1.560 sen(zero) = 0.021 . ref(beam) = 4.459 ref(zero) = 0.021 . Optical attenuation of filter deposit = 14 . Total aerosol black carbon on filter = 465 ng Mean aerosol black carbon concentration = 33 ng/m3 --- The reference beam showed lamp intensity fluctuations of 112 ppm. --- Disk space = 2.439322E+07 bytes free: One entry at every 5 minutes. There is space for 5186 hours ( 216 days) more data --- Disk space = 3.108198E+07 bytes free: One entry at every 5 minutes. There is space for 6608 hours ( 275 days) more data --- 01-may-12 19:21:45 Tape feeder mechanism advancing for 1 spot(s). --- 01-may-12 19:26:00 ============================================================= Automatic re-start ============================================================= --- MAGEE SCIEN. AETHALOMETER --- Aethalometer No. 463 --- 01-may-12 19:34:54 Measurements started Starting voltages: . sen(zero) = 0.021 ref(zero) = 0.021 . Lamp 1 (370 nm): sen(beam) = 1.290 ref(beam) = 2.126 . Lamp 2 (470 nm): sen(beam) = 2.079 ref(beam) = 2.354 . Lamp 3 (520 nm): sen(beam) = 1.382 ref(beam) = 2.421 . Lamp 4 (590 nm): sen(beam) = 1.812 ref(beam) = 1.187 . Lamp 5 (660 nm): sen(beam) = 2.376 ref(beam) = 2.320 . Lamp 6 (880 nm): sen(beam) = 2.242 ref(beam) = 3.420 . Lamp 7 (950 nm): sen(beam) = 1.745 ref(beam) = 4.390 ---