Two Stage Temperature Controller for Axial Fan

Description
The two stage temperature controller for axial fan will automatically take a sample of the ambient temperature using a temperature sensor. Users can set two sets of temperature values, and when the temperature is higher than the set value, the fans will be activated. When the temperature is lower than the set value, the time controller will start. The start and stop times can both be set in order to control the minimum ventilation volume. The two stage time/temperature controller is primarily used to control cooling and ammonia fans.

Features
The controller has a simple operation method, which can convert between temperature control, stop and forced service freely according to the usage requirements. It can control two different groups of fans to automatically start / stop according to different temperatures, which can effectively avoid multiple fans starting at the same time and causing different fluctuations and sudden temperature dips.