Block that implements function "Air temperature measurement" from VDI 3813 [1, section 6.1.5, p. 13]. For semantic correctness it is specialized for return temperatures.
"The sensor functionAir temperature measurement (RA-FL section 2, column 4; informative function block Figure 6) is used to measure the air temperature of the room and, in air-bound heating and cooling systems, also the extract and supply air temperatures as well as the outdoor temperature. Room, supply or extract air temperatures are the input information for heating and cooling functions, whereas the outdoor temperature is required, e. g., for night-time cooling, summer compensation or for weather protection functions of the sunshade." [1, section 6.1.5, p. 13]
Fig. 1: "Informative representation of the sensor function Air temperature measurement", [1, section 6.1.5, Figure 6, p. 14]
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