Dewpoint Sensor

Manufacture:                   Shaw Moisture Meters

Name:                              Dewpoint Sensor


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Construction of the aluminium oxide sensor is critical to the performance and reliability of systems and yet the construction varies from manufacturer to manufacturer. The methods are tried, tested and trusted and involve layering and treating high quality components in such a way that you can control sensor speed, sensitivity and base capacity.

The overall measurement range covered by the sensor is –100 °C to +20 °C (-148 °F to +68 °F) dewpoint, which corresponds to 0.001 ppm to 0.2 percent by volume.

P (Purple): -100 °C to 0 °C (-148 °F to +32 °F) DP, 0 – 6,000 ppm

S (Silver): -100 °C to -20 °C (-148 °F to -4 °F) DP, 0 – 1,000 ppm

G (Grey): -80 °C to 0 °C (-112 °F to +32 °F) DP, 0 – 6,000 ppm

R (Red): -80 °C to -20 °C (-112 °F to -4 °F) DP, 0 – 1,000 ppm

B (Blue): -80 °C to +20 °C (-112 °F to +68 °F) DP, 0 – 23,000 ppm

  • Flow independent
  • Calibration Certificate is traceable to the National Physical Laboratory (NPL)
  • Stability, low hysteresis and temperature coefficients
  • Wide dynamic range from 0.001 ppm to 0.2 percent by volume
  • Requires little or no maintenance
  • Can operate over a wide range of temperature and pressure
  • High selectivity for moisture
  • Intrinsically safe to ATEX and IECEx (when used in conjunction with barrier or isolator)