12-may-10 16:25:00 Measurements ended --- . Number of lamps (L) = 7 . Filter running time = 209.82 hours . Total airflow this filter = 61.63 cubic meters . Mean BC concentration of all lamps = 20 ng/m3 . Report for lamp 1 (370 nm): . Ending voltages: sen(beam) = .495 sen(zero) = 0.021 . ref(beam) = 2.144 ref(zero) = 0.021 . Optical attenuation of filter deposit = 99 . Total aerosol black carbon on filter = 1253 ng Mean aerosol black carbon concentration = 20 ng/m3 --- The reference beam showed lamp intensity fluctuations of 188 ppm. --- Report for lamp 2 (470 nm): . Ending voltages: sen(beam) = .885 sen(zero) = 0.021 . ref(beam) = 2.145 ref(zero) = 0.021 . Optical attenuation of filter deposit = 79 . Total aerosol black carbon on filter = 1283 ng Mean aerosol black carbon concentration = 20 ng/m3 --- The reference beam showed lamp intensity fluctuations of 124 ppm. --- Report for lamp 3 (520 nm): . Ending voltages: sen(beam) = .717 sen(zero) = 0.021 . ref(beam) = 2.426 ref(zero) = 0.021 . Optical attenuation of filter deposit = 68 . Total aerosol black carbon on filter = 1219 ng Mean aerosol black carbon concentration = 19 ng/m3 --- The reference beam showed lamp intensity fluctuations of 68 ppm. --- Report for lamp 4 (590 nm): . Ending voltages: sen(beam) = .977 sen(zero) = 0.021 . ref(beam) = 1.151 ref(zero) = 0.021 . Optical attenuation of filter deposit = 60 . Total aerosol black carbon on filter = 1214 ng Mean aerosol black carbon concentration = 19 ng/m3 --- The reference beam showed lamp intensity fluctuations of 607 ppm. --- Report for lamp 5 (660 nm): . Ending voltages: sen(beam) = 1.615 sen(zero) = 0.021 . ref(beam) = 2.657 ref(zero) = 0.021 . Optical attenuation of filter deposit = 54 . Total aerosol black carbon on filter = 1221 ng Mean aerosol black carbon concentration = 19 ng/m3 --- The reference beam showed lamp intensity fluctuations of 360 ppm. --- Report for lamp 6 (880 nm): . Ending voltages: sen(beam) = 1.498 sen(zero) = 0.021 . ref(beam) = 3.361 ref(zero) = 0.021 . Optical attenuation of filter deposit = 40 . Total aerosol black carbon on filter = 1233 ng Mean aerosol black carbon concentration = 20 ng/m3 --- The reference beam showed lamp intensity fluctuations of 388 ppm. --- Report for lamp 7 (950 nm): . Ending voltages: sen(beam) = 1.231 sen(zero) = 0.021 . ref(beam) = 4.410 ref(zero) = 0.021 . Optical attenuation of filter deposit = 37 . Total aerosol black carbon on filter = 1224 ng Mean aerosol black carbon concentration = 19 ng/m3 --- The reference beam showed lamp intensity fluctuations of 398 ppm. --- Disk space = 2.6688E+07 bytes free: One entry at every 5 minutes. There is space for 5673 hours ( 236 days) more data --- 12-may-10 16:25:00 Tape feeder mechanism advancing for 1 spot(s). --- ============================================================= --- MAGEE SCIEN. AETHALOMETER --- Aethalometer No. 463 --- 12-may-10 16:39:54 Measurements started Starting voltages: . sen(zero) = 0.021 ref(zero) = 0.021 . Lamp 1 (370 nm): sen(beam) = 1.233 ref(beam) = 2.188 . Lamp 2 (470 nm): sen(beam) = 1.940 ref(beam) = 2.185 . Lamp 3 (520 nm): sen(beam) = 1.426 ref(beam) = 2.490 . Lamp 4 (590 nm): sen(beam) = 1.796 ref(beam) = 1.169 . Lamp 5 (660 nm): sen(beam) = 2.807 ref(beam) = 2.699 . Lamp 6 (880 nm): sen(beam) = 2.306 ref(beam) = 3.461 . Lamp 7 (950 nm): sen(beam) = 1.805 ref(beam) = 4.454 ---