DQRID : D050211.1
Start DateStart TimeEnd DateEnd Time Data Quality Metric
10/10/2004140002/17/20051630Suspect
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Subject:
SGP/EBBR/E26 - Aging Pressure Sensor Output Changes
With Supply Voltage
DataStreams:sgp5ebbrE26.b1, sgp15ebbrE26.b1, sgp30ebbrE26.b1
Description:
The E26 EBBR pressure sensor experienced the poor internal voltage regulation problem 
experienced at other sites last year.  Aging of the internal voltage regulator caused the 
pressure output to drop by 1-2 kPa (0.1-0.5 kPa is normal) when the Sun rose and the solar 
panel goosed the battery voltage up.  

The sensible and latent heat fluxes were not significantly affected.
Suggestions: 
Measurements:sgp5ebbrE26.b1:
  • atmos_pressure
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sgp15ebbrE26.b1:
  • atmos_pressure_mv
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sgp30ebbrE26.b1:
  • atmos_pressure
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