Dew/frost point temperature calculation

Dew/frost point temperature calculation - HMT130

HMT130 User Guide

Document code

M211280EN

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Language

English

Product

HMT130

Document type

User guide

Dew/frost point temperature (T_df) is calculated with the following formula:

T_{d} \geq 0 \to T_{d f} = T_{d}

_{T_{d} < 0 \to T_{d f} = \frac{\frac{T n}{m}}{\log (\frac{P w}{A})} - 1 [° C]}

Pw is the water vapor pressure (see the separate calculation formula for P_w). The parameters A, m, and Tn depend on the temperature as shown in table NN.

Table 1. Temperature dependence for A, m, and Tn
T	A	m	Tn
... 0 °C	6.1134	9.7911	273.47