Honeywell HC900 - RH Relative Humidity Function Block

Function Blocks
RH Relative Humidity Function Block
320 HC900 Hybrid Control Designer Function Block Reference Guide Revision 11
2/07
RH Relative Humidity Function Block
Description
The RH label stands for Relative Humidity.
This block is part of the
Calculations category.
Function
Calculates RH as a function of wet bulb temperature, dry bulb temperature and atmospheric pressure.
0-100 % RH is output as a floating point number between 0 and 100.
Input
DRY
= Dry Bulb Temperature (°F, metric = °C)
WET = Wet Bulb Temperature (°F, metric = °C)
PRES = Atmospheric Pressure (psi, metric = Pa)
Output
RH
= Relative Humidity (0-100)
Block properties
Double click on the function block to access the function block properties dialog box.