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atmos:citation:instruments:model_137_hygrometer

Model 137 Aircraft Hygrometer

  • Description: Dew Point Hygrometer
  • Manufacturer: EdgeTech
  • Model: 137 -A3
  • Serial Number: 36278

Configuration

April 21, 2010

The temperature range configuration was changed from -60 C - 40 C, to -70 C to -30 C. The serial output frequency was changed from 5 seconds to 1 second.

Specifications

  • Dew/Frost Point Range
    • −50 to +90 °C
  • Dew/Frost Point Accuracy
    • ±0.20 °C nominal
  • Depression
    • 65°C,nominal
  • Slew Rate
    • 1.5°C/second max, above 0°C
  • Repeatability
    • ± 0.05°C
  • Precision
    • 0.1 °C
  • Sample Flow Rate
    • 0.25 - 2.5 liters/minute
  • Operating Temperature
    • Control Unit: 0 to + 50°C
    • Sensor: 50 to +100°C
  • Power Requirements
    • 90 to 240 VAC, 50 - 60Hz
    • 75 watts Maximum

Pictures

Picture of Control Unit Side

pic_002.jpg

Control Unit Back

pic_003.jpg

Control Unit Face

pic_004.jpg

Sensor Head

pic_005.jpg

Data Cable

pic_008.jpg

Sensor Element

pic_009.jpg

atmos/citation/instruments/model_137_hygrometer.txt · Last modified: 2020/01/29 17:25 by 127.0.0.1