Chapter 2 ___________________________________________________________ Product Overview
VAISALA ________________________________________________________________________ 11
HMDW80 Series Transmitter Models
Table 3 below lists the most important differences between the HMDW80
series transmitter models. For technical specifications, see Chapter 6, Technical
Data, on page 43.
Table 3 HMDW80 Series Transmitter Models
Output Parameters Explained
Table 4 Parameters Supported by HMDW80 Series
Temperature in Celsius or Fahrenheit scale.
humidity
Ratio of the partial pressure of water vapor in
the air to the saturation vapor pressure of air
at the current temperature.
°F
Temperature at which the water vapor in the air
will condense into water at the current pressure.
When the dewpoint is below 0 °C, the
transmitter outputs frostpoint (Tf) instead of
Sum of the internal energy of a thermodynamic
system.
The minimum temperature that can be reached
by evaporative cooling in the current conditions.
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