Thermal Shock Test Chamber -Three-zone

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Energy-saving design: VRF (refrigerant flow control) technology using PID+PWM principle realizes low-temperature energy-saving operation (electronic expansion valve according to thermal energy condition refrigerant flow servo control technology) low temperature working state, heater does not participate in work, adjust by PID+PWM Refrigerant flow and flow direction, three-way flow regulation of refrigeration pipeline, cold bypass pipeline and hot bypass pipeline to achieve automatic constant temperature to the working chamber. This method can reduce energy consumption by 30% under low temperature conditions.