25-jul-19 05:25:00 Measurements ended --- . Number of lamps (L) = 7 . Filter running time = 6.75 hours . Total airflow this filter = .69 cubic meters . Mean BC concentration of all lamps = 901 ng/vm3 . Report for lamp 1 (370 nm): . Ending voltages: sen(beam) = .894 sen(zero) = 0.021 . ref(beam) = 2.318 ref(zero) = 0.021 . Optical attenuation of filter deposit = 75 . Total aerosol black carbon on filter = 953 ng Mean aerosol black carbon concentration = 1381 ng/vm3 --- The reference beam showed lamp intensity fluctuations of 179 ppm. --- Report for lamp 2 (470 nm): . Ending voltages: sen(beam) = .918 sen(zero) = 0.021 . ref(beam) = 2.520 ref(zero) = 0.021 . Optical attenuation of filter deposit = 46 . Total aerosol black carbon on filter = 741 ng Mean aerosol black carbon concentration = 1073 ng/vm3 --- The reference beam showed lamp intensity fluctuations of 59 ppm. --- Report for lamp 3 (520 nm): . Ending voltages: sen(beam) = 1.368 sen(zero) = 0.021 . ref(beam) = 1.743 ref(zero) = 0.021 . Optical attenuation of filter deposit = 35 . Total aerosol black carbon on filter = 631 ng Mean aerosol black carbon concentration = 915 ng/vm3 --- The reference beam showed lamp intensity fluctuations of 65 ppm. --- Report for lamp 4 (590 nm): . Ending voltages: sen(beam) = 1.025 sen(zero) = 0.021 . ref(beam) = 2.360 ref(zero) = 0.021 . Optical attenuation of filter deposit = 29 . Total aerosol black carbon on filter = 586 ng Mean aerosol black carbon concentration = 849 ng/vm3 --- The reference beam showed lamp intensity fluctuations of 570 ppm. --- Report for lamp 5 (660 nm): . Ending voltages: sen(beam) = .355 sen(zero) = 0.021 . ref(beam) = .804 ref(zero) = 0.021 . Optical attenuation of filter deposit = 24 . Total aerosol black carbon on filter = 555 ng Mean aerosol black carbon concentration = 804 ng/vm3 --- The reference beam showed lamp intensity fluctuations of 185 ppm. --- Report for lamp 6 (880 nm): . Ending voltages: sen(beam) = .747 sen(zero) = 0.021 . ref(beam) = 1.150 ref(zero) = 0.021 . Optical attenuation of filter deposit = 15 . Total aerosol black carbon on filter = 459 ng Mean aerosol black carbon concentration = 664 ng/vm3 --- The reference beam showed lamp intensity fluctuations of 285 ppm. --- Report for lamp 7 (950 nm): . Ending voltages: sen(beam) = 1.281 sen(zero) = 0.021 . ref(beam) = 1.227 ref(zero) = 0.021 . Optical attenuation of filter deposit = 13 . Total aerosol black carbon on filter = 428 ng Mean aerosol black carbon concentration = 619 ng/vm3 --- The reference beam showed lamp intensity fluctuations of 331 ppm. --- Disk space = 2.539274E+08 bytes free: One entry at every 10 minutes. There is space for 107962 hours ( 4498 days) more data --- 25-jul-19 05:25:00 Tape feeder mechanism advancing for 2 spot(s). --- ============================================================= --- MAGEE SCIEN. AETHALOMETER --- Aethalometer No. 360 --- 25-jul-19 05:49:54 Measurements started Starting voltages: . sen(zero) = 0.021 ref(zero) = 0.021 . Lamp 1 (370 nm): sen(beam) = 1.872 ref(beam) = 2.233 . Lamp 2 (470 nm): sen(beam) = 1.447 ref(beam) = 2.425 . Lamp 3 (520 nm): sen(beam) = 1.920 ref(beam) = 1.710 . Lamp 4 (590 nm): sen(beam) = 1.308 ref(beam) = 2.240 . Lamp 5 (660 nm): sen(beam) = .446 ref(beam) = .773 . Lamp 6 (880 nm): sen(beam) = .850 ref(beam) = 1.125 . Lamp 7 (950 nm): sen(beam) = 1.432 ref(beam) = 1.189 --- 25-jul-19 07:34:54 SERIOUS INSTRUMENT PROBLEM !!! Problem with air flow pump or plumbing. Flow < 1 vLPM. --- 25-jul-19 07:34:54 Measurements ended --- . Number of lamps (L) = 7 . Filter running time = 1.66 hours . Total airflow this filter = .16 cubic meters . Mean BC concentration of all lamps = 712 ng/vm3 . Report for lamp 1 (370 nm): . Ending voltages: sen(beam) = 1.613 sen(zero) = 0.021 . ref(beam) = 2.254 ref(zero) = 0.021 . Optical attenuation of filter deposit = 12 . Total aerosol black carbon on filter = 157 ng Mean aerosol black carbon concentration = 1028 ng/vm3 --- The reference beam showed lamp intensity fluctuations of 263 ppm. --- Report for lamp 2 (470 nm): . Ending voltages: sen(beam) = 1.315 sen(zero) = 0.021 . ref(beam) = 2.432 ref(zero) = 0.021 . Optical attenuation of filter deposit = 7 . Total aerosol black carbon on filter = 127 ng Mean aerosol black carbon concentration = 831 ng/vm3 --- The reference beam showed lamp intensity fluctuations of 101 ppm. --- Report for lamp 3 (520 nm): . Ending voltages: sen(beam) = 1.781 sen(zero) = 0.021 . ref(beam) = 1.714 ref(zero) = 0.021 . Optical attenuation of filter deposit = 6 . Total aerosol black carbon on filter = 110 ng Mean aerosol black carbon concentration = 724 ng/vm3 --- The reference beam showed lamp intensity fluctuations of 103 ppm. --- Report for lamp 4 (590 nm): . Ending voltages: sen(beam) = 1.282 sen(zero) = 0.021 . ref(beam) = 2.335 ref(zero) = 0.021 . Optical attenuation of filter deposit = 5 . Total aerosol black carbon on filter = 104 ng Mean aerosol black carbon concentration = 684 ng/vm3 --- The reference beam showed lamp intensity fluctuations of 715 ppm. --- Report for lamp 5 (660 nm): . Ending voltages: sen(beam) = .426 sen(zero) = 0.021 . ref(beam) = .778 ref(zero) = 0.021 . Optical attenuation of filter deposit = 4 . Total aerosol black carbon on filter = 100 ng Mean aerosol black carbon concentration = 655 ng/vm3 --- The reference beam showed lamp intensity fluctuations of 257 ppm. --- Report for lamp 6 (880 nm): . Ending voltages: sen(beam) = .833 sen(zero) = 0.021 . ref(beam) = 1.138 ref(zero) = 0.021 . Optical attenuation of filter deposit = 2 . Total aerosol black carbon on filter = 83 ng Mean aerosol black carbon concentration = 548 ng/vm3 --- The reference beam showed lamp intensity fluctuations of 410 ppm. --- Report for lamp 7 (950 nm): . Ending voltages: sen(beam) = 1.412 sen(zero) = 0.021 . ref(beam) = 1.207 ref(zero) = 0.021 . Optical attenuation of filter deposit = 2 . Total aerosol black carbon on filter = 78 ng Mean aerosol black carbon concentration = 511 ng/vm3 --- The reference beam showed lamp intensity fluctuations of 459 ppm. --- Disk space = 2.539028E+08 bytes free: One entry at every 10 minutes. There is space for 107952 hours ( 4498 days) more data ---