29-mar-12 08:15:00 Measurements ended --- . Number of lamps (L) = 7 . Filter running time = 67.41 hours . Total airflow this filter = 19.77 cubic meters . Mean BC concentration of all lamps = 71 ng/m3 . Report for lamp 1 (370 nm): . Ending voltages: sen(beam) = .175 sen(zero) = 0.021 . ref(beam) = 2.233 ref(zero) = 0.021 . Optical attenuation of filter deposit = 99 . Total aerosol black carbon on filter = 1253 ng Mean aerosol black carbon concentration = 63 ng/m3 --- The reference beam showed lamp intensity fluctuations of 53 ppm. --- Report for lamp 2 (470 nm): . Ending voltages: sen(beam) = .339 sen(zero) = 0.021 . ref(beam) = 2.436 ref(zero) = 0.021 . Optical attenuation of filter deposit = 84 . Total aerosol black carbon on filter = 1360 ng Mean aerosol black carbon concentration = 68 ng/m3 --- The reference beam showed lamp intensity fluctuations of 41 ppm. --- Report for lamp 3 (520 nm): . Ending voltages: sen(beam) = .267 sen(zero) = 0.021 . ref(beam) = 2.483 ref(zero) = 0.021 . Optical attenuation of filter deposit = 75 . Total aerosol black carbon on filter = 1346 ng Mean aerosol black carbon concentration = 68 ng/m3 --- The reference beam showed lamp intensity fluctuations of 40 ppm. --- Report for lamp 4 (590 nm): . Ending voltages: sen(beam) = .391 sen(zero) = 0.021 . ref(beam) = 1.243 ref(zero) = 0.021 . Optical attenuation of filter deposit = 69 . Total aerosol black carbon on filter = 1395 ng Mean aerosol black carbon concentration = 70 ng/m3 --- The reference beam showed lamp intensity fluctuations of 141 ppm. --- Report for lamp 5 (660 nm): . Ending voltages: sen(beam) = .531 sen(zero) = 0.021 . ref(beam) = 2.420 ref(zero) = 0.021 . Optical attenuation of filter deposit = 63 . Total aerosol black carbon on filter = 1441 ng Mean aerosol black carbon concentration = 72 ng/m3 --- The reference beam showed lamp intensity fluctuations of 92 ppm. --- Report for lamp 6 (880 nm): . Ending voltages: sen(beam) = .701 sen(zero) = 0.021 . ref(beam) = 3.554 ref(zero) = 0.021 . Optical attenuation of filter deposit = 52 . Total aerosol black carbon on filter = 1572 ng Mean aerosol black carbon concentration = 79 ng/m3 --- The reference beam showed lamp intensity fluctuations of 99 ppm. --- Report for lamp 7 (950 nm): . Ending voltages: sen(beam) = .591 sen(zero) = 0.021 . ref(beam) = 4.611 ref(zero) = 0.021 . Optical attenuation of filter deposit = 48 . Total aerosol black carbon on filter = 1565 ng Mean aerosol black carbon concentration = 79 ng/m3 --- The reference beam showed lamp intensity fluctuations of 101 ppm. --- Disk space = 2.827776E+07 bytes free: One entry at every 5 minutes. There is space for 6011 hours ( 250 days) more data --- 29-mar-12 08:15:00 Tape feeder mechanism advancing for 1 spot(s). --- ============================================================= --- MAGEE SCIEN. AETHALOMETER --- Aethalometer No. 463 --- 29-mar-12 08:29:54 Measurements started Starting voltages: . sen(zero) = 0.021 ref(zero) = 0.021 . Lamp 1 (370 nm): sen(beam) = .202 ref(beam) = 2.221 . Lamp 2 (470 nm): sen(beam) = .384 ref(beam) = 2.421 . Lamp 3 (520 nm): sen(beam) = .301 ref(beam) = 2.483 . Lamp 4 (590 nm): sen(beam) = .430 ref(beam) = 1.229 . Lamp 5 (660 nm): sen(beam) = .583 ref(beam) = 2.400 . Lamp 6 (880 nm): sen(beam) = .767 ref(beam) = 3.549 . Lamp 7 (950 nm): sen(beam) = .639 ref(beam) = 4.574 ---