29-feb-12 15:28:24 Measurements ended --- . Number of lamps (L) = 7 . Filter running time = 21.08 hours . Total airflow this filter = 6.18 cubic meters . Mean BC concentration of all lamps = 49 ng/m3 . Report for lamp 1 (370 nm): . Ending voltages: sen(beam) = 1.031 sen(zero) = 0.021 . ref(beam) = 2.270 ref(zero) = 0.021 . Optical attenuation of filter deposit = 25 . Total aerosol black carbon on filter = 321 ng Mean aerosol black carbon concentration = 52 ng/m3 --- The reference beam showed lamp intensity fluctuations of 46 ppm. --- Report for lamp 2 (470 nm): . Ending voltages: sen(beam) = 1.766 sen(zero) = 0.021 . ref(beam) = 2.484 ref(zero) = 0.021 . Optical attenuation of filter deposit = 19 . Total aerosol black carbon on filter = 310 ng Mean aerosol black carbon concentration = 50 ng/m3 --- The reference beam showed lamp intensity fluctuations of 39 ppm. --- Report for lamp 3 (520 nm): . Ending voltages: sen(beam) = 1.199 sen(zero) = 0.021 . ref(beam) = 2.514 ref(zero) = 0.021 . Optical attenuation of filter deposit = 16 . Total aerosol black carbon on filter = 298 ng Mean aerosol black carbon concentration = 48 ng/m3 --- The reference beam showed lamp intensity fluctuations of 37 ppm. --- Report for lamp 4 (590 nm): . Ending voltages: sen(beam) = 1.734 sen(zero) = 0.021 . ref(beam) = 1.317 ref(zero) = 0.021 . Optical attenuation of filter deposit = 14 . Total aerosol black carbon on filter = 299 ng Mean aerosol black carbon concentration = 48 ng/m3 --- The reference beam showed lamp intensity fluctuations of 120 ppm. --- Report for lamp 5 (660 nm): . Ending voltages: sen(beam) = 2.230 sen(zero) = 0.021 . ref(beam) = 2.534 ref(zero) = 0.021 . Optical attenuation of filter deposit = 13 . Total aerosol black carbon on filter = 302 ng Mean aerosol black carbon concentration = 49 ng/m3 --- The reference beam showed lamp intensity fluctuations of 80 ppm. --- Report for lamp 6 (880 nm): . Ending voltages: sen(beam) = 2.172 sen(zero) = 0.021 . ref(beam) = 3.681 ref(zero) = 0.021 . Optical attenuation of filter deposit = 10 . Total aerosol black carbon on filter = 306 ng Mean aerosol black carbon concentration = 49 ng/m3 --- The reference beam showed lamp intensity fluctuations of 81 ppm. --- Report for lamp 7 (950 nm): . Ending voltages: sen(beam) = 1.731 sen(zero) = 0.021 . ref(beam) = 4.820 ref(zero) = 0.021 . Optical attenuation of filter deposit = 9 . Total aerosol black carbon on filter = 294 ng Mean aerosol black carbon concentration = 47 ng/m3 --- The reference beam showed lamp intensity fluctuations of 81 ppm. --- Disk space = 2.804941E+07 bytes free: One entry at every 5 minutes. There is space for 5963 hours ( 248 days) more data --- Disk space = 2.794701E+07 bytes free: One entry at every 5 minutes. There is space for 5941 hours ( 248 days) more data --- 29-feb-12 18:29:09 Tape feeder mechanism advancing for 1 spot(s). --- 29-feb-12 18:31:00 ============================================================= Automatic re-start ============================================================= --- MAGEE SCIEN. AETHALOMETER --- Aethalometer No. 463 --- 29-feb-12 18:39:54 Measurements started Starting voltages: . sen(zero) = 0.021 ref(zero) = 0.021 . Lamp 1 (370 nm): sen(beam) = 1.318 ref(beam) = 2.266 . Lamp 2 (470 nm): sen(beam) = 2.152 ref(beam) = 2.487 . Lamp 3 (520 nm): sen(beam) = 1.409 ref(beam) = 2.527 . Lamp 4 (590 nm): sen(beam) = 1.980 ref(beam) = 1.309 . Lamp 5 (660 nm): sen(beam) = 2.544 ref(beam) = 2.534 . Lamp 6 (880 nm): sen(beam) = 2.408 ref(beam) = 3.694 . Lamp 7 (950 nm): sen(beam) = 1.875 ref(beam) = 4.814 ---