MAG/PSAP/M1 - Impactor state backwards

Impactor was installed on 2012-07-12 but did not toggle until 2013-05-16 00:04:19 UTC.

The impactor as delivered did not have limit switches indicating the impactor state. Only 
the command signal was available and is saved in the 'master' data stream. A programming 
error led to the command signal having reverse polarity (1 is actually 10 and 10 is 
actually 1-um cutoff)

Alternative methods for determining the impactor state:

1) Monitor the PSAP flow.  The flow decreases slightly in the 1 um state

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• Aerosol light absorption coefficient, nominal red wavelength at dry or reference
  RH(Ba_R_PSAP3W)
• AOS Ba_B_CLAP3W transmittance, blue channel(transmittance_B)
• AOS Ba_R_CLAP3W transmittance, red channel(transmittance_R)
• Mass flow(mass_flow)
• Diffusion flow valve position(dilution_flow_valve_position)
• AOS Ba_B_CLAP3W_1 (NOAA) sample length, needed to calculate Beers Law(sample_length)
• Aerosol light absorption coefficient, nominal green wavelength at dry or
  reference RH(Ba_G_PSAP3W)
• Impactor setting in terms of aerodynamic diameter cut off(impactor_setting)
• AOS PSAP3W transmittance, green channel(transmittance_G)
• Flow setpoint(dilution_flow_setpoint)
• Dilution flow rate(dilution_flow)
• Aerosol light absorption coefficient, nominal blue wavelength at dry or
  reference RH(Ba_B_PSAP3W)