30-may-11 10:30:00 Measurements ended --- . Number of lamps (L) = 7 . Filter running time = 13.74 hours . Total airflow this filter = 4.06 cubic meters . Mean BC concentration of all lamps = 139 ng/vm3 . Report for lamp 1 (370 nm): . Ending voltages: sen(beam) = .148 sen(zero) = 0.021 . ref(beam) = 1.356 ref(zero) = 0.020 . Optical attenuation of filter deposit = 5 . Total aerosol black carbon on filter = 65 ng Mean aerosol black carbon concentration = 16 ng/vm3 --- The reference beam showed lamp intensity fluctuations of 407 ppm. --- Report for lamp 2 (470 nm): . Ending voltages: sen(beam) = .182 sen(zero) = 0.021 . ref(beam) = 1.756 ref(zero) = 0.020 . Optical attenuation of filter deposit = 75 . Total aerosol black carbon on filter = 1206 ng Mean aerosol black carbon concentration = 298 ng/vm3 --- The reference beam showed lamp intensity fluctuations of 74 ppm. --- Report for lamp 3 (520 nm): . Ending voltages: sen(beam) = .222 sen(zero) = 0.021 . ref(beam) = 2.102 ref(zero) = 0.020 . Optical attenuation of filter deposit = 41 . Total aerosol black carbon on filter = 744 ng Mean aerosol black carbon concentration = 184 ng/vm3 --- The reference beam showed lamp intensity fluctuations of 56 ppm. --- Report for lamp 4 (590 nm): . Ending voltages: sen(beam) = .164 sen(zero) = 0.021 . ref(beam) = 2.817 ref(zero) = 0.020 . Optical attenuation of filter deposit = 8 . Total aerosol black carbon on filter = 163 ng Mean aerosol black carbon concentration = 40 ng/vm3 --- The reference beam showed lamp intensity fluctuations of 416 ppm. --- Report for lamp 5 (660 nm): . Ending voltages: sen(beam) = .569 sen(zero) = 0.021 . ref(beam) = 2.440 ref(zero) = 0.020 . Optical attenuation of filter deposit = 48 . Total aerosol black carbon on filter = 1092 ng Mean aerosol black carbon concentration = 270 ng/vm3 --- The reference beam showed lamp intensity fluctuations of 198 ppm. --- Report for lamp 6 (880 nm): . Ending voltages: sen(beam) = .193 sen(zero) = 0.021 . ref(beam) = 2.400 ref(zero) = 0.020 . Optical attenuation of filter deposit =-7 . Total aerosol black carbon on filter =-183 ng Mean aerosol black carbon concentration =-46 ng/vm3 --- The reference beam showed lamp intensity fluctuations of 300 ppm. --- Report for lamp 7 (950 nm): . Ending voltages: sen(beam) = .235 sen(zero) = 0.021 . ref(beam) = 2.375 ref(zero) = 0.020 . Optical attenuation of filter deposit = 26 . Total aerosol black carbon on filter = 845 ng Mean aerosol black carbon concentration = 209 ng/vm3 --- The reference beam showed lamp intensity fluctuations of 302 ppm. --- Disk space = 2.570322E+08 bytes free: One entry at every 5 minutes. There is space for 54641 hours ( 2277 days) more data --- 30-may-11 10:30:00 Tape feeder mechanism advancing for 1 spot(s). --- ============================================================= --- MAGEE SCIEN. AETHALOMETER --- Aethalometer No. 774 --- 30-may-11 10:39:56 Measurements started Starting voltages: . sen(zero) = 0.021 ref(zero) = 0.020 . Lamp 1 (370 nm): sen(beam) = .160 ref(beam) = 1.252 . Lamp 2 (470 nm): sen(beam) = .178 ref(beam) = 1.789 . Lamp 3 (520 nm): sen(beam) = .837 ref(beam) = 2.076 . Lamp 4 (590 nm): sen(beam) = .974 ref(beam) = 2.704 . Lamp 5 (660 nm): sen(beam) = .586 ref(beam) = 2.534 . Lamp 6 (880 nm): sen(beam) = 1.048 ref(beam) = 2.306 . Lamp 7 (950 nm): sen(beam) = .616 ref(beam) = 2.344 --- 30-may-11 23:24:54 SERIOUS INSTRUMENT PROBLEM !!! Reference beam OK, Sensing beam low on lamp 1 Tape Advance mechanism problem --- 30-may-11 23:24:54 Measurements ended --- . Number of lamps (L) = 7 . Filter running time = 12.66 hours . Total airflow this filter = 3.74 cubic meters . Mean BC concentration of all lamps = 153 ng/vm3 . Report for lamp 1 (370 nm): . Ending voltages: sen(beam) = .121 sen(zero) = 0.021 . ref(beam) = 1.387 ref(zero) = 0.020 . Optical attenuation of filter deposit = 42 . Total aerosol black carbon on filter = 544 ng Mean aerosol black carbon concentration = 146 ng/vm3 --- The reference beam showed lamp intensity fluctuations of 222 ppm. --- Report for lamp 2 (470 nm): . Ending voltages: sen(beam) = .130 sen(zero) = 0.021 . ref(beam) = 1.801 ref(zero) = 0.020 . Optical attenuation of filter deposit = 35 . Total aerosol black carbon on filter = 577 ng Mean aerosol black carbon concentration = 155 ng/vm3 --- The reference beam showed lamp intensity fluctuations of 39 ppm. --- Report for lamp 3 (520 nm): . Ending voltages: sen(beam) = .625 sen(zero) = 0.021 . ref(beam) = 2.083 ref(zero) = 0.020 . Optical attenuation of filter deposit = 29 . Total aerosol black carbon on filter = 531 ng Mean aerosol black carbon concentration = 142 ng/vm3 --- The reference beam showed lamp intensity fluctuations of 39 ppm. --- Report for lamp 4 (590 nm): . Ending voltages: sen(beam) = .776 sen(zero) = 0.021 . ref(beam) = 2.833 ref(zero) = 0.020 . Optical attenuation of filter deposit = 27 . Total aerosol black carbon on filter = 557 ng Mean aerosol black carbon concentration = 149 ng/vm3 --- The reference beam showed lamp intensity fluctuations of 158 ppm. --- Report for lamp 5 (660 nm): . Ending voltages: sen(beam) = .453 sen(zero) = 0.021 . ref(beam) = 2.573 ref(zero) = 0.020 . Optical attenuation of filter deposit = 27 . Total aerosol black carbon on filter = 623 ng Mean aerosol black carbon concentration = 167 ng/vm3 --- The reference beam showed lamp intensity fluctuations of 86 ppm. --- Report for lamp 6 (880 nm): . Ending voltages: sen(beam) = .881 sen(zero) = 0.021 . ref(beam) = 2.345 ref(zero) = 0.020 . Optical attenuation of filter deposit = 19 . Total aerosol black carbon on filter = 577 ng Mean aerosol black carbon concentration = 155 ng/vm3 --- The reference beam showed lamp intensity fluctuations of 109 ppm. --- Report for lamp 7 (950 nm): . Ending voltages: sen(beam) = .524 sen(zero) = 0.021 . ref(beam) = 2.388 ref(zero) = 0.020 . Optical attenuation of filter deposit = 18 . Total aerosol black carbon on filter = 594 ng Mean aerosol black carbon concentration = 159 ng/vm3 --- The reference beam showed lamp intensity fluctuations of 115 ppm. --- Disk space = 2.569503E+08 bytes free: One entry at every 5 minutes. There is space for 54624 hours ( 2276 days) more data --- Disk space = 2.568929E+08 bytes free: One entry at every 5 minutes. There is space for 54612 hours ( 2276 days) more data --- 30-may-11 23:31:37 Tape feeder mechanism advancing for 1 spot(s). --- 30-may-11 23:35:37 ============================================================= Automatic re-start ============================================================= --- MAGEE SCIEN. AETHALOMETER --- Aethalometer No. 774 --- 30-may-11 23:39:56 Measurements started Starting voltages: . sen(zero) = 0.021 ref(zero) = 0.020 . Lamp 1 (370 nm): sen(beam) = .192 ref(beam) = 1.306 . Lamp 2 (470 nm): sen(beam) = .210 ref(beam) = 1.808 . Lamp 3 (520 nm): sen(beam) = .766 ref(beam) = 2.096 . Lamp 4 (590 nm): sen(beam) = .835 ref(beam) = 2.787 . Lamp 5 (660 nm): sen(beam) = .482 ref(beam) = 2.583 . Lamp 6 (880 nm): sen(beam) = 1.010 ref(beam) = 2.348 . Lamp 7 (950 nm): sen(beam) = .676 ref(beam) = 2.376 ---