30-nov-11  07:34:39    SERIOUS INSTRUMENT PROBLEM !!!
Problem with air flow  pump or plumbing.
Flow < 1 LPM.
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30-nov-11  07:34:40  Measurements ended
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.                   Number of lamps (L) = 7
.                   Filter running time = 489.52 hours
.             Total airflow this filter = 228.46 cubic meters
.    Mean BC concentration of all lamps = 9 ng/m3
.
Report for lamp 1 (370 nm):
. Ending voltages: sen(beam) =    .430  sen(zero) =   0.021
.                  ref(beam) =    .874  ref(zero) =   0.021
. Optical attenuation of filter deposit = 79
.  Total aerosol black carbon on filter = 3348 ng
Mean aerosol black carbon concentration = 14 ng/m3
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The reference beam showed lamp intensity fluctuations of 85 ppm.
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Report for lamp 2 (470 nm):
. Ending voltages: sen(beam) =   2.330  sen(zero) =   0.021
.                  ref(beam) =   2.624  ref(zero) =   0.021
. Optical attenuation of filter deposit = 52
.  Total aerosol black carbon on filter = 2815 ng
Mean aerosol black carbon concentration = 12 ng/m3
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The reference beam showed lamp intensity fluctuations of 24 ppm.
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Report for lamp 3 (520 nm):
. Ending voltages: sen(beam) =   1.681  sen(zero) =   0.021
.                  ref(beam) =   1.579  ref(zero) =   0.021
. Optical attenuation of filter deposit = 23
.  Total aerosol black carbon on filter = 1402 ng
Mean aerosol black carbon concentration = 6 ng/m3
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The reference beam showed lamp intensity fluctuations of 61 ppm.
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Report for lamp 4 (590 nm):
. Ending voltages: sen(beam) =   3.145  sen(zero) =   0.021
.                  ref(beam) =   2.462  ref(zero) =   0.021
. Optical attenuation of filter deposit = 33
.  Total aerosol black carbon on filter = 2267 ng
Mean aerosol black carbon concentration = 9 ng/m3
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The reference beam showed lamp intensity fluctuations of 766 ppm.
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Report for lamp 5 (660 nm):
. Ending voltages: sen(beam) =   1.824  sen(zero) =   0.021
.                  ref(beam) =   2.049  ref(zero) =   0.021
. Optical attenuation of filter deposit = 27
.  Total aerosol black carbon on filter = 2091 ng
Mean aerosol black carbon concentration = 9 ng/m3
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The reference beam showed lamp intensity fluctuations of 425 ppm.
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Report for lamp 6 (880 nm):
. Ending voltages: sen(beam) =    .970  sen(zero) =   0.021
.                  ref(beam) =   1.286  ref(zero) =   0.021
. Optical attenuation of filter deposit = 17
.  Total aerosol black carbon on filter = 1768 ng
Mean aerosol black carbon concentration = 7 ng/m3
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The reference beam showed lamp intensity fluctuations of 439 ppm.
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Report for lamp 7 (950 nm):
. Ending voltages: sen(beam) =   1.860  sen(zero) =   0.021
.                  ref(beam) =   2.211  ref(zero) =   0.021
. Optical attenuation of filter deposit = 15
.  Total aerosol black carbon on filter = 1677 ng
Mean aerosol black carbon concentration = 7 ng/m3
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The reference beam showed lamp intensity fluctuations of 419 ppm.
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Disk space = 1264128 bytes free: One entry at every 60 minutes.
There is space for 6653 hours ( 277 days) more data
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Disk space = 1165312 bytes free: One entry at every 60 minutes.
There is space for 6133 hours ( 256 days) more data
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30-nov-11  07:41:34  Tape feeder mechanism advancing for 1 spot(s).

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30-nov-11  07:56:00  
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Automatic re-start
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Puget Sound
Clean Air Agency
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Aethalometer No. 371
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30-nov-11  08:59:54  Measurements started
Starting voltages:
.           sen(zero) =   0.021 ref(zero) =   0.021
.  Lamp 1 (370 nm): sen(beam) =    .924 ref(beam) =    .863
.  Lamp 2 (470 nm): sen(beam) =   3.973 ref(beam) =   2.662
.  Lamp 3 (520 nm): sen(beam) =   2.108 ref(beam) =   1.566
.  Lamp 4 (590 nm): sen(beam) =   4.262 ref(beam) =   2.426
.  Lamp 5 (660 nm): sen(beam) =   2.396 ref(beam) =   2.060
.  Lamp 6 (880 nm): sen(beam) =   1.139 ref(beam) =   1.290
.  Lamp 7 (950 nm): sen(beam) =   2.148 ref(beam) =   2.216

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