DQRID : D120423.1
Start DateStart TimeEnd DateEnd Time
01/07/2012113001/08/20120100
12/08/2011014512/08/20111345
01/11/2012190001/11/20121903
01/08/2012113001/09/20120010
01/02/2012160001/03/20121921
02/16/2012001302/16/20122044
12/25/2011030012/25/20110630
03/04/2012000003/04/20120200
12/07/2011221512/07/20112330
12/05/2011000012/05/20112100
01/16/2012033601/16/20120345
12/31/2011214312/31/20112150
01/16/2012194501/17/20121945
12/04/2011130012/04/20111730
12/05/2011213012/07/20110645
01/05/2012033001/06/20120032
01/18/2012180001/18/20121900
01/14/2012080001/14/20121636
01/08/2012073001/08/20120800
more
Subject:
NSA/MET/C1 - CMH failure
DataStreams:nsametC1.b1
Description:
Starting 14:17 GMT on 12/4/2011 the CMH Dew Point began reporting missing value, CMH 
relative humidity was flat-lining at 100% and CMH saturated vapor pressure was flat-lined at a 
high value.  This condition continued very intermittently for several months.  Issue was 
frosting and a failed ventilation fan.
Suggestions: 
Measurements:nsametC1.b1:
  • CMH relative humidity, calculated(cmh_rh)
  • CMH saturation vapor pressure, calculated(cmh_sat_vapor_pressure)
  • CMH vapor pressure, calculated(cmh_vapor_pressure)
  • CMH temperature(cmh_temp)
  • CMH dew point(cmh_dew_point)
more

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