HFE/AOS/M1 - CCN missing

A power regulator on the CCN circuit board failed. The mentor replaced it and it was up 
and working on 7/25/2008.

• CCN_laser_current
• AOS bin number of lowest channel of OPC include in summation of N_CCN(N_CCN_bin_number)
• CCN_FirstStageMonitorVoltage
• CCN_T_sample
• CCN_ss_calc
• CCN_T_TEC1
• CCN_T_TEC3
• CCN_T_TEC2
• CCN_Q_sheath
• CCN_T_nafion
• CCN_P_sample
• AOS number concentration of CCN(N_CCN)
• CCN_dT_TEC3_TEC1_StdDev
• CCN_T_inlet
• Size of upper limit of each CCN bin(CCN_UpperSizeLimit)
• CCN_ProportionalValveVoltage
• CCN_temp_unstable_flag
• CCN_Q_sample
• CCN_Temperature_Gradient
• AOS CCN droplet count by bin size(N_CCN_dN)
• CCN_T_OPC
• CCN_ss_set

HFE/AOS/M1 - CPC and CCN data questionable

The CPC slowly clogged and the signal declined until the instrument was cleaned at which 
point the signal would increase. The data is still a good relative measure of the daily 
changes in the CN concentration, but the absolute value may be too low.

The mentor was unable to monitor the flow rate and operation in the CCN during operation. 
The relative changes in CCN with %ss are likely fine, but the absolute values may be too 
low or too high. Dust was prevalent at the site and likely contributed to the CCN signal 
such that large dust particles appeared as droplets.

• CCN_Q_sheath
• CCN_Q_sample
• AOS number concentration of CCN(N_CCN)
• AOS CCN droplet count by bin size(N_CCN_dN)