ENA/CPC/C1 - Butanol Exhausted

Butanol was not available for startup.  Operators were able get instrument started with 
small amount of butanol in the HTDMA.  Data recovery not possilble.  

Resumed operation with refill of butanol.

No workaround

• Nozzle pressure(nozzle_pressure)
• Optics temperature(optics_temp)
• Saturation temperature(saturation_temp)
• Aerosol concentration averaged over times to match N_CCN(concentration)
• OPC laser current(laser_current)
• North Latitude(lat)
• time_in_seconds_since_volume_start(time)
• Orifice pressure(orifice_pressure)
• Condensation temperature(condensation_temp)
• lon(lon)
• -180.0 - +180.0(alt)
• Ambient Temperature(ambient_temp)
• Time offset from base_time(time_offset)
• base time in epoch(base_time)
• Cabinet temperature(cabinet_temp)