18-jan-10 05:00:00 Measurements ended --- . Number of lamps (L) = 7 . Filter running time = 32.83 hours . Total airflow this filter = 9.71 cubic meters . Mean BC concentration of all lamps = 175 ng/m3 . Report for lamp 1 (370 nm): . Ending voltages: sen(beam) = .208 sen(zero) = 0.021 . ref(beam) = 1.455 ref(zero) = 0.020 . Optical attenuation of filter deposit = 125 . Total aerosol black carbon on filter = 1586 ng Mean aerosol black carbon concentration = 163 ng/m3 --- The reference beam showed lamp intensity fluctuations of 212 ppm. --- Report for lamp 2 (470 nm): . Ending voltages: sen(beam) = .400 sen(zero) = 0.021 . ref(beam) = 1.524 ref(zero) = 0.020 . Optical attenuation of filter deposit = 103 . Total aerosol black carbon on filter = 1658 ng Mean aerosol black carbon concentration = 171 ng/m3 --- The reference beam showed lamp intensity fluctuations of 49 ppm. --- Report for lamp 3 (520 nm): . Ending voltages: sen(beam) = .462 sen(zero) = 0.021 . ref(beam) = 1.997 ref(zero) = 0.020 . Optical attenuation of filter deposit = 91 . Total aerosol black carbon on filter = 1631 ng Mean aerosol black carbon concentration = 168 ng/m3 --- The reference beam showed lamp intensity fluctuations of 42 ppm. --- Report for lamp 4 (590 nm): . Ending voltages: sen(beam) = .457 sen(zero) = 0.021 . ref(beam) = 2.691 ref(zero) = 0.020 . Optical attenuation of filter deposit = 84 . Total aerosol black carbon on filter = 1695 ng Mean aerosol black carbon concentration = 174 ng/m3 --- The reference beam showed lamp intensity fluctuations of 192 ppm. --- Report for lamp 5 (660 nm): . Ending voltages: sen(beam) = .757 sen(zero) = 0.021 . ref(beam) = 2.449 ref(zero) = 0.020 . Optical attenuation of filter deposit = 77 . Total aerosol black carbon on filter = 1746 ng Mean aerosol black carbon concentration = 180 ng/m3 --- The reference beam showed lamp intensity fluctuations of 102 ppm. --- Report for lamp 6 (880 nm): . Ending voltages: sen(beam) = .787 sen(zero) = 0.021 . ref(beam) = 2.308 ref(zero) = 0.020 . Optical attenuation of filter deposit = 59 . Total aerosol black carbon on filter = 1794 ng Mean aerosol black carbon concentration = 185 ng/m3 --- The reference beam showed lamp intensity fluctuations of 141 ppm. --- Report for lamp 7 (950 nm): . Ending voltages: sen(beam) = .727 sen(zero) = 0.021 . ref(beam) = 2.189 ref(zero) = 0.020 . Optical attenuation of filter deposit = 54 . Total aerosol black carbon on filter = 1774 ng Mean aerosol black carbon concentration = 183 ng/m3 --- The reference beam showed lamp intensity fluctuations of 155 ppm. --- Disk space = 2.46014E+08 bytes free: One entry at every 5 minutes. There is space for 52299 hours ( 2179 days) more data --- 18-jan-10 05:00:00 Tape feeder mechanism advancing for 1 spot(s). --- ============================================================= --- MAGEE SCIEN. AETHALOMETER --- Aethalometer No. 774 --- 18-jan-10 05:09:56 Measurements started Starting voltages: . sen(zero) = 0.021 ref(zero) = 0.020 . Lamp 1 (370 nm): sen(beam) = .904 ref(beam) = 1.359 . Lamp 2 (470 nm): sen(beam) = 1.449 ref(beam) = 1.521 . Lamp 3 (520 nm): sen(beam) = 1.536 ref(beam) = 1.995 . Lamp 4 (590 nm): sen(beam) = 1.367 ref(beam) = 2.633 . Lamp 5 (660 nm): sen(beam) = 2.121 ref(beam) = 2.451 . Lamp 6 (880 nm): sen(beam) = 1.716 ref(beam) = 2.313 . Lamp 7 (950 nm): sen(beam) = 1.499 ref(beam) = 2.206 --- 18-jan-10 23:05:00 Measurements ended --- . Number of lamps (L) = 7 . Filter running time = 17.91 hours . Total airflow this filter = 5.3 cubic meters . Mean BC concentration of all lamps = 310 ng/m3 . Report for lamp 1 (370 nm): . Ending voltages: sen(beam) = .284 sen(zero) = 0.021 . ref(beam) = 1.424 ref(zero) = 0.020 . Optical attenuation of filter deposit = 125 . Total aerosol black carbon on filter = 1583 ng Mean aerosol black carbon concentration = 300 ng/m3 --- The reference beam showed lamp intensity fluctuations of 227 ppm. --- Report for lamp 2 (470 nm): . Ending voltages: sen(beam) = .536 sen(zero) = 0.021 . ref(beam) = 1.515 ref(zero) = 0.020 . Optical attenuation of filter deposit = 100 . Total aerosol black carbon on filter = 1622 ng Mean aerosol black carbon concentration = 307 ng/m3 --- The reference beam showed lamp intensity fluctuations of 50 ppm. --- Report for lamp 3 (520 nm): . Ending voltages: sen(beam) = .633 sen(zero) = 0.021 . ref(beam) = 1.984 ref(zero) = 0.020 . Optical attenuation of filter deposit = 89 . Total aerosol black carbon on filter = 1595 ng Mean aerosol black carbon concentration = 302 ng/m3 --- The reference beam showed lamp intensity fluctuations of 51 ppm. --- Report for lamp 4 (590 nm): . Ending voltages: sen(beam) = .614 sen(zero) = 0.021 . ref(beam) = 2.637 ref(zero) = 0.020 . Optical attenuation of filter deposit = 81 . Total aerosol black carbon on filter = 1651 ng Mean aerosol black carbon concentration = 312 ng/m3 --- The reference beam showed lamp intensity fluctuations of 179 ppm. --- Report for lamp 5 (660 nm): . Ending voltages: sen(beam) = 1.003 sen(zero) = 0.021 . ref(beam) = 2.424 ref(zero) = 0.020 . Optical attenuation of filter deposit = 74 . Total aerosol black carbon on filter = 1679 ng Mean aerosol black carbon concentration = 318 ng/m3 --- The reference beam showed lamp intensity fluctuations of 96 ppm. --- Report for lamp 6 (880 nm): . Ending voltages: sen(beam) = .969 sen(zero) = 0.021 . ref(beam) = 2.272 ref(zero) = 0.020 . Optical attenuation of filter deposit = 56 . Total aerosol black carbon on filter = 1688 ng Mean aerosol black carbon concentration = 319 ng/m3 --- The reference beam showed lamp intensity fluctuations of 126 ppm. --- Report for lamp 7 (950 nm): . Ending voltages: sen(beam) = .888 sen(zero) = 0.021 . ref(beam) = 2.157 ref(zero) = 0.020 . Optical attenuation of filter deposit = 50 . Total aerosol black carbon on filter = 1651 ng Mean aerosol black carbon concentration = 312 ng/m3 --- The reference beam showed lamp intensity fluctuations of 133 ppm. --- Disk space = 2.458501E+08 bytes free: One entry at every 5 minutes. There is space for 52264 hours ( 2178 days) more data --- 18-jan-10 23:05:00 Tape feeder mechanism advancing for 1 spot(s). --- ============================================================= --- MAGEE SCIEN. AETHALOMETER --- Aethalometer No. 774 --- 18-jan-10 23:14:56 Measurements started Starting voltages: . sen(zero) = 0.021 ref(zero) = 0.020 . Lamp 1 (370 nm): sen(beam) = .580 ref(beam) = 1.340 . Lamp 2 (470 nm): sen(beam) = 1.028 ref(beam) = 1.517 . Lamp 3 (520 nm): sen(beam) = 1.067 ref(beam) = 1.986 . Lamp 4 (590 nm): sen(beam) = .942 ref(beam) = 2.582 . Lamp 5 (660 nm): sen(beam) = 1.545 ref(beam) = 2.425 . Lamp 6 (880 nm): sen(beam) = 1.356 ref(beam) = 2.280 . Lamp 7 (950 nm): sen(beam) = 1.203 ref(beam) = 2.168 ---