26-dec-12 09:15:00 Measurements ended --- . Number of lamps (L) = 7 . Filter running time = 108.91 hours . Total airflow this filter = 31.91 cubic meters . Mean BC concentration of all lamps = 41 ng/m3 . Report for lamp 1 (370 nm): . Ending voltages: sen(beam) = .364 sen(zero) = 0.021 . ref(beam) = 2.206 ref(zero) = 0.021 . Optical attenuation of filter deposit = 99 . Total aerosol black carbon on filter = 1254 ng Mean aerosol black carbon concentration = 39 ng/m3 --- The reference beam showed lamp intensity fluctuations of 66 ppm. --- Report for lamp 2 (470 nm): . Ending voltages: sen(beam) = .731 sen(zero) = 0.021 . ref(beam) = 2.410 ref(zero) = 0.021 . Optical attenuation of filter deposit = 80 . Total aerosol black carbon on filter = 1300 ng Mean aerosol black carbon concentration = 40 ng/m3 --- The reference beam showed lamp intensity fluctuations of 47 ppm. --- Report for lamp 3 (520 nm): . Ending voltages: sen(beam) = .542 sen(zero) = 0.021 . ref(beam) = 2.451 ref(zero) = 0.021 . Optical attenuation of filter deposit = 71 . Total aerosol black carbon on filter = 1272 ng Mean aerosol black carbon concentration = 39 ng/m3 --- The reference beam showed lamp intensity fluctuations of 38 ppm. --- Report for lamp 4 (590 nm): . Ending voltages: sen(beam) = .810 sen(zero) = 0.021 . ref(beam) = 1.240 ref(zero) = 0.021 . Optical attenuation of filter deposit = 64 . Total aerosol black carbon on filter = 1296 ng Mean aerosol black carbon concentration = 40 ng/m3 --- The reference beam showed lamp intensity fluctuations of 188 ppm. --- Report for lamp 5 (660 nm): . Ending voltages: sen(beam) = 1.048 sen(zero) = 0.021 . ref(beam) = 2.298 ref(zero) = 0.021 . Optical attenuation of filter deposit = 59 . Total aerosol black carbon on filter = 1335 ng Mean aerosol black carbon concentration = 41 ng/m3 --- The reference beam showed lamp intensity fluctuations of 112 ppm. --- Report for lamp 6 (880 nm): . Ending voltages: sen(beam) = 1.261 sen(zero) = 0.021 . ref(beam) = 3.509 ref(zero) = 0.021 . Optical attenuation of filter deposit = 45 . Total aerosol black carbon on filter = 1374 ng Mean aerosol black carbon concentration = 43 ng/m3 --- The reference beam showed lamp intensity fluctuations of 118 ppm. --- Report for lamp 7 (950 nm): . Ending voltages: sen(beam) = 1.044 sen(zero) = 0.021 . ref(beam) = 4.557 ref(zero) = 0.021 . Optical attenuation of filter deposit = 41 . Total aerosol black carbon on filter = 1331 ng Mean aerosol black carbon concentration = 41 ng/m3 --- The reference beam showed lamp intensity fluctuations of 115 ppm. --- Disk space = 2.55145E+07 bytes free: One entry at every 5 minutes. There is space for 5424 hours ( 226 days) more data --- 26-dec-12 09:15:00 Tape feeder mechanism advancing for 1 spot(s). --- ============================================================= --- MAGEE SCIEN. AETHALOMETER --- Aethalometer No. 463 --- 26-dec-12 09:29:54 Measurements started Starting voltages: . sen(zero) = 0.021 ref(zero) = 0.021 . Lamp 1 (370 nm): sen(beam) = .798 ref(beam) = 2.183 . Lamp 2 (470 nm): sen(beam) = 1.390 ref(beam) = 2.392 . Lamp 3 (520 nm): sen(beam) = .950 ref(beam) = 2.446 . Lamp 4 (590 nm): sen(beam) = 1.338 ref(beam) = 1.223 . Lamp 5 (660 nm): sen(beam) = 1.628 ref(beam) = 2.274 . Lamp 6 (880 nm): sen(beam) = 1.811 ref(beam) = 3.496 . Lamp 7 (950 nm): sen(beam) = 1.421 ref(beam) = 4.499 ---