DQRID : D000801.5
Start DateStart TimeEnd DateEnd Time Data Quality Metric
06/02/2000184207/03/20001833Incorrect
more
Subject:
SGP/AOS/C1 - Nephelometer failure
DataStreams:sgpaosC1.a0, sgpaosauxC1.a0
Description:
An inexperienced AOS technician inadvertently closed off the flow to the dual-nephelometer 
humidograph system during a Friday Preventative Maintenance.  This resulted in liquid 
water getting into the humidified nephelometer.  Flow was restored to the system on Monday, 
but the nephelometers were producing strange data.  A number of tests were performed 
over the next few days to remotely troubleshoot the situation, to no avail.  Eventually, the 
decision was made to pull both nephelometers and return them to Boulder for repair.  
This DQR refers only to the humidified nephelometer, which was out of service for the entire 
period from 000602 through 000703.
Suggestions: 
Measurements:sgpaosauxC1.a0:
  • BluBScatZero_HRH
  • GrnRScatZero_HRH
  • RedTScatSpn_HRH
  • BluTScatSpn_HRH
  • GrnTScatZero_HRH
  • RedBScatZero_HRH
  • RedTScatZero_HRH
  • RedBScatSpn_HRH
  • BluTScatZero_HRH
  • BapRef
  • BluRScatZero_HRH
  • GrnBScatSpn_HRH
  • BapSignal
  • GrnBScatZero_HRH
  • GrnTScatSpn_HRH
  • RedRScatZero_HRH
  • BluBScatSpn_HRH
more
sgpaosC1.a0:
  • BluTScatCoef_1um_HRH
  • RedBScatCoef_10um_HRH
  • RedBScatCoef_1um_HRH
  • Bap_I_1um
  • RedTScatCoef_10um_HRH
  • GrnBScatCoef_10um_HRH
  • GrnBScatCoef_1um_HRH
  • BluTScatCoef_10um_HRH
  • GrnTScatCoef_1um_HRH
  • RedTScatCoef_1um_HRH
  • BluBScatCoef_1um_HRH
  • Bap_I_10um
  • GrnTScatCoef_10um_HRH
  • BluBScatCoef_10um_HRH
more

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