01-jul-17 07:35:00 Measurements ended --- . Number of lamps (L) = 7 . Filter running time = 24.25 hours . Total airflow this filter = 2.76 cubic meters . Mean BC concentration of all lamps = 279 ng/vm3 . Report for lamp 1 (370 nm): . Ending voltages: sen(beam) = .671 sen(zero) = 0.021 . ref(beam) = 2.179 ref(zero) = 0.021 . Optical attenuation of filter deposit = 75 . Total aerosol black carbon on filter = 957 ng Mean aerosol black carbon concentration = 347 ng/vm3 --- The reference beam showed lamp intensity fluctuations of 219 ppm. --- Report for lamp 2 (470 nm): . Ending voltages: sen(beam) = .685 sen(zero) = 0.021 . ref(beam) = 2.390 ref(zero) = 0.021 . Optical attenuation of filter deposit = 53 . Total aerosol black carbon on filter = 856 ng Mean aerosol black carbon concentration = 311 ng/vm3 --- The reference beam showed lamp intensity fluctuations of 141 ppm. --- Report for lamp 3 (520 nm): . Ending voltages: sen(beam) = .933 sen(zero) = 0.021 . ref(beam) = 1.646 ref(zero) = 0.021 . Optical attenuation of filter deposit = 43 . Total aerosol black carbon on filter = 775 ng Mean aerosol black carbon concentration = 281 ng/vm3 --- The reference beam showed lamp intensity fluctuations of 142 ppm. --- Report for lamp 4 (590 nm): . Ending voltages: sen(beam) = .684 sen(zero) = 0.021 . ref(beam) = 2.136 ref(zero) = 0.021 . Optical attenuation of filter deposit = 36 . Total aerosol black carbon on filter = 743 ng Mean aerosol black carbon concentration = 270 ng/vm3 --- The reference beam showed lamp intensity fluctuations of 471 ppm. --- Report for lamp 5 (660 nm): . Ending voltages: sen(beam) = .290 sen(zero) = 0.021 . ref(beam) = .856 ref(zero) = 0.021 . Optical attenuation of filter deposit = 32 . Total aerosol black carbon on filter = 733 ng Mean aerosol black carbon concentration = 266 ng/vm3 --- The reference beam showed lamp intensity fluctuations of 265 ppm. --- Report for lamp 6 (880 nm): . Ending voltages: sen(beam) = .506 sen(zero) = 0.021 . ref(beam) = 1.064 ref(zero) = 0.021 . Optical attenuation of filter deposit = 22 . Total aerosol black carbon on filter = 671 ng Mean aerosol black carbon concentration = 243 ng/vm3 --- The reference beam showed lamp intensity fluctuations of 332 ppm. --- Report for lamp 7 (950 nm): . Ending voltages: sen(beam) = .858 sen(zero) = 0.021 . ref(beam) = 1.101 ref(zero) = 0.021 . Optical attenuation of filter deposit = 19 . Total aerosol black carbon on filter = 639 ng Mean aerosol black carbon concentration = 232 ng/vm3 --- The reference beam showed lamp intensity fluctuations of 379 ppm. --- Disk space = 2.538947E+08 bytes free: One entry at every 10 minutes. There is space for 107948 hours ( 4498 days) more data --- 01-jul-17 07:35:00 Tape feeder mechanism advancing for 2 spot(s). --- ============================================================= --- MAGEE SCIEN. AETHALOMETER --- Aethalometer No. 360 --- 01-jul-17 07:59:54 Measurements started Starting voltages: . sen(zero) = 0.021 ref(zero) = 0.021 . Lamp 1 (370 nm): sen(beam) = 1.399 ref(beam) = 2.177 . Lamp 2 (470 nm): sen(beam) = 1.150 ref(beam) = 2.385 . Lamp 3 (520 nm): sen(beam) = 1.421 ref(beam) = 1.665 . Lamp 4 (590 nm): sen(beam) = .943 ref(beam) = 2.083 . Lamp 5 (660 nm): sen(beam) = .393 ref(beam) = .852 . Lamp 6 (880 nm): sen(beam) = .621 ref(beam) = 1.069 . Lamp 7 (950 nm): sen(beam) = 1.024 ref(beam) = 1.097 ---