23-aug-12 07:30:00 Measurements ended --- . Number of lamps (L) = 7 . Filter running time = 207.24 hours . Total airflow this filter = 60.74 cubic meters . Mean BC concentration of all lamps = 22 ng/m3 . Report for lamp 1 (370 nm): . Ending voltages: sen(beam) = .505 sen(zero) = 0.021 . ref(beam) = 2.146 ref(zero) = 0.021 . Optical attenuation of filter deposit = 99 . Total aerosol black carbon on filter = 1254 ng Mean aerosol black carbon concentration = 20 ng/m3 --- The reference beam showed lamp intensity fluctuations of 227 ppm. --- Report for lamp 2 (470 nm): . Ending voltages: sen(beam) = .937 sen(zero) = 0.021 . ref(beam) = 2.350 ref(zero) = 0.021 . Optical attenuation of filter deposit = 82 . Total aerosol black carbon on filter = 1333 ng Mean aerosol black carbon concentration = 21 ng/m3 --- The reference beam showed lamp intensity fluctuations of 227 ppm. --- Report for lamp 3 (520 nm): . Ending voltages: sen(beam) = .686 sen(zero) = 0.021 . ref(beam) = 2.398 ref(zero) = 0.021 . Optical attenuation of filter deposit = 73 . Total aerosol black carbon on filter = 1306 ng Mean aerosol black carbon concentration = 21 ng/m3 --- The reference beam showed lamp intensity fluctuations of 230 ppm. --- Report for lamp 4 (590 nm): . Ending voltages: sen(beam) = .954 sen(zero) = 0.021 . ref(beam) = 1.163 ref(zero) = 0.021 . Optical attenuation of filter deposit = 66 . Total aerosol black carbon on filter = 1339 ng Mean aerosol black carbon concentration = 22 ng/m3 --- The reference beam showed lamp intensity fluctuations of 288 ppm. --- Report for lamp 5 (660 nm): . Ending voltages: sen(beam) = 1.275 sen(zero) = 0.021 . ref(beam) = 2.244 ref(zero) = 0.021 . Optical attenuation of filter deposit = 61 . Total aerosol black carbon on filter = 1389 ng Mean aerosol black carbon concentration = 22 ng/m3 --- The reference beam showed lamp intensity fluctuations of 265 ppm. --- Report for lamp 6 (880 nm): . Ending voltages: sen(beam) = 1.415 sen(zero) = 0.021 . ref(beam) = 3.324 ref(zero) = 0.021 . Optical attenuation of filter deposit = 47 . Total aerosol black carbon on filter = 1419 ng Mean aerosol black carbon concentration = 23 ng/m3 --- The reference beam showed lamp intensity fluctuations of 295 ppm. --- Report for lamp 7 (950 nm): . Ending voltages: sen(beam) = 1.148 sen(zero) = 0.021 . ref(beam) = 4.341 ref(zero) = 0.021 . Optical attenuation of filter deposit = 43 . Total aerosol black carbon on filter = 1401 ng Mean aerosol black carbon concentration = 23 ng/m3 --- The reference beam showed lamp intensity fluctuations of 300 ppm. --- Disk space = 2.610022E+07 bytes free: One entry at every 5 minutes. There is space for 5549 hours ( 231 days) more data --- 23-aug-12 07:30:00 Tape feeder mechanism advancing for 1 spot(s). --- ============================================================= --- MAGEE SCIEN. AETHALOMETER --- Aethalometer No. 463 --- 23-aug-12 07:44:54 Measurements started Starting voltages: . sen(zero) = 0.021 ref(zero) = 0.021 . Lamp 1 (370 nm): sen(beam) = 1.307 ref(beam) = 2.068 . Lamp 2 (470 nm): sen(beam) = 2.114 ref(beam) = 2.310 . Lamp 3 (520 nm): sen(beam) = 1.401 ref(beam) = 2.362 . Lamp 4 (590 nm): sen(beam) = 1.804 ref(beam) = 1.135 . Lamp 5 (660 nm): sen(beam) = 2.340 ref(beam) = 2.214 . Lamp 6 (880 nm): sen(beam) = 2.238 ref(beam) = 3.256 . Lamp 7 (950 nm): sen(beam) = 1.742 ref(beam) = 4.270 ---