17-dec-11 23:10:00 Measurements ended --- . Number of lamps (L) = 7 . Filter running time = 59.91 hours . Total airflow this filter = 17.57 cubic meters . Mean BC concentration of all lamps = 76 ng/m3 . Report for lamp 1 (370 nm): . Ending voltages: sen(beam) = .502 sen(zero) = 0.021 . ref(beam) = 2.231 ref(zero) = 0.021 . Optical attenuation of filter deposit = 99 . Total aerosol black carbon on filter = 1254 ng Mean aerosol black carbon concentration = 71 ng/m3 --- The reference beam showed lamp intensity fluctuations of 48 ppm. --- Report for lamp 2 (470 nm): . Ending voltages: sen(beam) = .935 sen(zero) = 0.021 . ref(beam) = 2.416 ref(zero) = 0.021 . Optical attenuation of filter deposit = 82 . Total aerosol black carbon on filter = 1329 ng Mean aerosol black carbon concentration = 75 ng/m3 --- The reference beam showed lamp intensity fluctuations of 33 ppm. --- Report for lamp 3 (520 nm): . Ending voltages: sen(beam) = .677 sen(zero) = 0.021 . ref(beam) = 2.491 ref(zero) = 0.021 . Optical attenuation of filter deposit = 73 . Total aerosol black carbon on filter = 1316 ng Mean aerosol black carbon concentration = 75 ng/m3 --- The reference beam showed lamp intensity fluctuations of 36 ppm. --- Report for lamp 4 (590 nm): . Ending voltages: sen(beam) = .997 sen(zero) = 0.021 . ref(beam) = 1.261 ref(zero) = 0.021 . Optical attenuation of filter deposit = 66 . Total aerosol black carbon on filter = 1341 ng Mean aerosol black carbon concentration = 76 ng/m3 --- The reference beam showed lamp intensity fluctuations of 114 ppm. --- Report for lamp 5 (660 nm): . Ending voltages: sen(beam) = 1.348 sen(zero) = 0.021 . ref(beam) = 2.421 ref(zero) = 0.021 . Optical attenuation of filter deposit = 61 . Total aerosol black carbon on filter = 1379 ng Mean aerosol black carbon concentration = 78 ng/m3 --- The reference beam showed lamp intensity fluctuations of 68 ppm. --- Report for lamp 6 (880 nm): . Ending voltages: sen(beam) = 1.477 sen(zero) = 0.021 . ref(beam) = 3.590 ref(zero) = 0.021 . Optical attenuation of filter deposit = 47 . Total aerosol black carbon on filter = 1428 ng Mean aerosol black carbon concentration = 81 ng/m3 --- The reference beam showed lamp intensity fluctuations of 77 ppm. --- Report for lamp 7 (950 nm): . Ending voltages: sen(beam) = 1.215 sen(zero) = 0.021 . ref(beam) = 4.616 ref(zero) = 0.021 . Optical attenuation of filter deposit = 42 . Total aerosol black carbon on filter = 1373 ng Mean aerosol black carbon concentration = 78 ng/m3 --- The reference beam showed lamp intensity fluctuations of 76 ppm. --- Disk space = 1.589862E+07 bytes free: One entry at every 5 minutes. There is space for 3380 hours ( 141 days) more data --- 17-dec-11 23:10:00 Tape feeder mechanism advancing for 1 spot(s). --- ============================================================= --- MAGEE SCIEN. AETHALOMETER --- Aethalometer No. 463 --- 17-dec-11 23:24:54 Measurements started Starting voltages: . sen(zero) = 0.021 ref(zero) = 0.021 . Lamp 1 (370 nm): sen(beam) = 1.282 ref(beam) = 2.201 . Lamp 2 (470 nm): sen(beam) = 2.066 ref(beam) = 2.410 . Lamp 3 (520 nm): sen(beam) = 1.369 ref(beam) = 2.478 . Lamp 4 (590 nm): sen(beam) = 1.850 ref(beam) = 1.244 . Lamp 5 (660 nm): sen(beam) = 2.409 ref(beam) = 2.416 . Lamp 6 (880 nm): sen(beam) = 2.295 ref(beam) = 3.544 . Lamp 7 (950 nm): sen(beam) = 1.798 ref(beam) = 4.594 ---