User Manual

10 Extra codes
60
Humidity
control
The humidity controller receives the process value from a psychrometric
humidity probe, through the mathematical combination of wet bulb and dry
bulb temperatures.
RELF (E1, E2)
E1 - Dry bulb temperature, via analog input 1
E2 - Wet bulb temperature, via analog input 2
Difference
control
The difference between the two input signals is taken as the process value.
Difference: E1-E2
E1 - Analog input 1
E2 - Analog input 2