1. Scheduler to automatically modify set points at user defined interval
2. Step number selection as desired
3. RH measurement using Hygrometer with dry and wet bulb
4. Real time clock(RTC) based 24 step set point control

Radix installed one RHC301 controller in the customer’s greenhouse. RHC301 utilizes wet and dry bulb temperatures to calculate relative humidity. After comparing the calculated value to the user-defined setpoint at that time, RHC301 actuated heaters or dehumidifiers to bring humidity and temperature to the required value.

The controller was connected to a SCADA where operators could input 4 setpoints, with 24 settings for each corresponding to the hours in a day. Operators could also choose a step number, after which the controller would maintain that setpoint until the next day. This was necessary as plants in various areas of the greenhouse require different ranges of temperature and humidity throughout the day.

The SCADA supplied closely monitored the system with real time trends and historic data for user defined time intervals. Users could define datalogging intervals down to seconds and generate excel or text reports for analysis.