Three Stage Temperature and One Stage Time Controller

Description
The three stage temperature and one stage time controller automatically samples the ambient temperature using the temperature sensor. Users can set three sets of temperature values. When the ambient temperature is higher than the first set of temperature values, the first group of fans will be activated. When the temperature is higher than the second set of temperature values, the second group of fans will start. When the temperature is higher than the third set of temperature values, the wet curtain pumps will start. A three stage temperature controller is mainly used for the control of fans and wet curtain pumps. When the temperature is lower than the first set of temperature values, the time controller will be started. The fan start time and stop time can be freely set to control the minimum ventilation volume. Three stage temperature and one stage time controllers are mainly used in the control of cooling fans, wet curtain pumps and ammonia fans.

Features
The controller has a simple operation method, and all four fan directions are equipped with separate control knobs - automatic - stop - forced operation, among which the first, second, third way of fans are temperature control, and the fourth way is time control. The first, second, third way of fans can set three temperature ranges, and automatically stop according to environmental requirements. When the ambient temperature is low, the first, second, third way of fans will not start, and the fourth road wind machine will automatically start or stop according to the time control. As the ambient temperature rises, the first, second, third way of fans start up one after another, and the fourth road fan automatically stops running. This control method ensures the environment is accurately cooled when the temperature is high, and the environment is ventilated when the temperature is low.