User Manual

9.2 Enthalpy calculator
The function block calculates the following based on inputs temperature and
relative humidity:
Purpos
e
Functio
n range A (inputs Temp A and RelHu A):
Functio
n range A
 Enthalpy
A
 Absolute humidity A
 Dew point temperature
 Wet bulb temperature
Function range B (inputs Temp B and Rel Hu B):
Functio
n range B
 Enthalpy
B
 Absolute humidity B
 Enthalpy difference (Enthalpy A Minus Enthalpy B)
The results of the calculations are provided as DC 0...10 V signals or as internal,
analog signal.
Range Inputs Outputs
A Temp A Temperature input A Enth A Enthalpy A
RelHu A Relative humidity input A Abso Hu A Absolute humidity A
Dew Pnt Dew point temperature
Wet Blb Wet bulb temperature
B Temp B Temperature input B Enth B Enthalpy B
RelHu B Relative humidity input B Abso Hu B Absolute humidity B
Enth Diff Enthalpy difference A-B
Definition of short nam
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