How does the emergency shutdown feature work in a Low-temperature Cooling Liquid Circulating Pump?

The emergency shutdown sequence of a Low-temperature Cooling Liquid Circulating Pump is governed by a multi-layer safety architecture that continuously monitors temperature, pressure, current and flow. When the microprocessor detects any parameter drifting outside the preset envelope—for example bath fluid rising above the set-point by more than AL degrees, pressure loss at the pump head, or an over-current spike—the controller immediately turns off the compressor and the circulating pump, closes the solenoid valves, and latches the alarm relay. This automatic action is complemented by manual intervention: an operator can press the OFF key on the LCD panel and then trip the main breaker to initiate the same shutdown path. Every Low-temperature Cooling Liquid Circulating Pump is therefore equipped with both active logic control and passive hardware interlocks, ensuring that even in the event of a sensor failure or loss of control power the system defaults to a safe, de-energised state, protecting the bath, the load and the operator alike.