National Weather Service United States Department of Commerce

Sterling Field Support Center Humidity Laboratory

 

Operating Specifications

 

Operating Ranges:

  • Relative Humidity: 10% to 98% with uncertainty of ±0.5%.
  • Temperature: −80 ° C to +70 ° C with uncertainty of ±0.05° C.
  • Dew Point: −80° C to +30° C  with uncertainty of ±0.1° C .
  • Pressure: Ambient to 20 hPa with an uncertainty of 0.01.

Equipment:

  • RH Systems Chilled Mirror Hygrometer Model 373LHX .
  • Kahn Chilled Mirror Hygrometer Model RS80.
  • Thunder Scientific Humidity Generator Model 2500.
  • Thunder Scientific Humidity Generator Model 4500.
  • Thunder Scientific Humidity Generator Model 3900.