DQRID : D080826.3
Start DateStart TimeEnd DateEnd Time Data Quality Metric
08/14/2008020008/18/20080545Suspect
more
Subject:
TWP/SKYRAD/C1 - PIR2 ventilator fan failure
DataStreams:twpskyrad20sC1.a0, twpskyrad60sC1.b1
Description:
During the time range specified the PIR2 output is questionable due to ventilator fan 
failure. Although the PIR is temperature compensated, data review indicates that the PIR2 
didn't compare as well with PIR1. Typical differences during full sun are approximately 10 
w/m2. During this time period differences of 10-14 W/m2 were noted.
Suggestions: 
Use data with caution or use only PIR1 during this time period
Measurements:twpskyrad60sC1.b1:
  • down_long_hemisp2_std
  • down_long_hemisp2
  • down_long_hemisp2_min
  • inst_down_long_hemisp2_case_temp
  • down_long_hemisp2_max
  • inst_down_long_hemisp2_dome_temp
  • inst_down_long_hemisp2_tp
more
twpskyrad20sC1.a0:
  • inst_down_long_hemisp2_case_resist
  • inst_down_long_hemisp2_tp
  • inst_down_long_hemisp2_dome_resist
more

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