11-mar-12 20:35:00 Measurements ended --- . Number of lamps (L) = 7 . Filter running time = 89.83 hours . Total airflow this filter = 26.34 cubic meters . Mean BC concentration of all lamps = 57 ng/m3 . Report for lamp 1 (370 nm): . Ending voltages: sen(beam) = .185 sen(zero) = 0.021 . ref(beam) = 2.223 ref(zero) = 0.021 . Optical attenuation of filter deposit = 99 . Total aerosol black carbon on filter = 1253 ng Mean aerosol black carbon concentration = 47 ng/m3 --- The reference beam showed lamp intensity fluctuations of 55 ppm. --- Report for lamp 2 (470 nm): . Ending voltages: sen(beam) = .364 sen(zero) = 0.021 . ref(beam) = 2.420 ref(zero) = 0.021 . Optical attenuation of filter deposit = 88 . Total aerosol black carbon on filter = 1422 ng Mean aerosol black carbon concentration = 54 ng/m3 --- The reference beam showed lamp intensity fluctuations of 43 ppm. --- Report for lamp 3 (520 nm): . Ending voltages: sen(beam) = .291 sen(zero) = 0.021 . ref(beam) = 2.487 ref(zero) = 0.021 . Optical attenuation of filter deposit = 81 . Total aerosol black carbon on filter = 1442 ng Mean aerosol black carbon concentration = 54 ng/m3 --- The reference beam showed lamp intensity fluctuations of 40 ppm. --- Report for lamp 4 (590 nm): . Ending voltages: sen(beam) = .440 sen(zero) = 0.021 . ref(beam) = 1.247 ref(zero) = 0.021 . Optical attenuation of filter deposit = 75 . Total aerosol black carbon on filter = 1513 ng Mean aerosol black carbon concentration = 57 ng/m3 --- The reference beam showed lamp intensity fluctuations of 145 ppm. --- Report for lamp 5 (660 nm): . Ending voltages: sen(beam) = .605 sen(zero) = 0.021 . ref(beam) = 2.407 ref(zero) = 0.021 . Optical attenuation of filter deposit = 70 . Total aerosol black carbon on filter = 1589 ng Mean aerosol black carbon concentration = 60 ng/m3 --- The reference beam showed lamp intensity fluctuations of 96 ppm. --- Report for lamp 6 (880 nm): . Ending voltages: sen(beam) = .797 sen(zero) = 0.021 . ref(beam) = 3.559 ref(zero) = 0.021 . Optical attenuation of filter deposit = 56 . Total aerosol black carbon on filter = 1713 ng Mean aerosol black carbon concentration = 65 ng/m3 --- The reference beam showed lamp intensity fluctuations of 103 ppm. --- Report for lamp 7 (950 nm): . Ending voltages: sen(beam) = .679 sen(zero) = 0.021 . ref(beam) = 4.598 ref(zero) = 0.021 . Optical attenuation of filter deposit = 52 . Total aerosol black carbon on filter = 1690 ng Mean aerosol black carbon concentration = 64 ng/m3 --- The reference beam showed lamp intensity fluctuations of 103 ppm. --- Disk space = 3.039539E+07 bytes free: One entry at every 5 minutes. There is space for 6462 hours ( 269 days) more data --- 11-mar-12 20:35:00 Tape feeder mechanism advancing for 1 spot(s). --- ============================================================= --- MAGEE SCIEN. AETHALOMETER --- Aethalometer No. 463 --- 11-mar-12 20:49:54 Measurements started Starting voltages: . sen(zero) = 0.021 ref(zero) = 0.021 . Lamp 1 (370 nm): sen(beam) = .203 ref(beam) = 2.211 . Lamp 2 (470 nm): sen(beam) = .390 ref(beam) = 2.406 . Lamp 3 (520 nm): sen(beam) = .313 ref(beam) = 2.478 . Lamp 4 (590 nm): sen(beam) = .458 ref(beam) = 1.226 . Lamp 5 (660 nm): sen(beam) = .627 ref(beam) = 2.386 . Lamp 6 (880 nm): sen(beam) = .825 ref(beam) = 3.524 . Lamp 7 (950 nm): sen(beam) = .697 ref(beam) = 4.561 ---