DQRID : D150828.1
Start DateStart TimeEnd DateEnd Time Data Quality Metric
08/18/2015061408/27/20151856Suspect
more
Subject:
SGP/NEPHELOMETER/C1 - Periodic bad backgrounds on filtered air.
DataStreams:sgpaosnephdryC1.b1, sgpaosnephdryC1.a1
Description:
The hourly background using filtered air started to go negative, indicating a possible 
valve problem, contaminate inside the scattering volume or electronic problem. Valves were 
checked and found to be be in good working order. Instrument was turned off and shipped 
back to mentor for repair. Wet neph was moved into dry neph position
Suggestions: 
Use data with caution
Measurements:sgpaosnephdryC1.a1:
  • Bbs_B_Dry_10um_Neph3W_1
  • Bs_B_Dry_1um_Neph3W_1
  • P_Neph_Dry
  • T_NephInlet_Dry
  • Bs_G_Dry_1um_Neph3W_1
  • Bs_R_Dry_10um_Neph3W_1
  • Bbs_R_Dry_1um_Neph3W_1
  • Bbs_R_Dry_10um_Neph3W_1
  • Bbs_G_Dry_10um_Neph3W_1
  • Bbs_G_Dry_1um_Neph3W_1
  • Bs_G_Dry_10um_Neph3W_1
  • RH_NephInlet_Dry
  • Bbs_B_Dry_1um_Neph3W_1
  • Bs_B_Dry_10um_Neph3W_1
  • T_NephVol_Dry
  • RH_NephVol_Dry
  • Bs_R_Dry_1um_Neph3W_1
more
sgpaosnephdryC1.b1:
  • Bbs_R_Dry_Neph3W_1
  • T_Neph_Dry
  • RH_Neph_Dry
  • impactor_setting
  • Bs_G_Dry_Neph3W_1
  • Bbs_B_Dry_Neph3W_1
  • Bs_R_Dry_Neph3W_1
  • P_Neph_Dry
  • Bs_B_Dry_Neph3W_1
  • Bbs_G_Dry_Neph3W_1
  • T_Neph_Inlet_Dry
more

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