7118 Temperature model suitable to Automatic Blow moulding machine ; Its working principle is to automatically sample the ambient temperature through the temperature sensor, monitor it instantly, and when the ambient temperature is higher than the control setpoint, the control circuit starts, and the control return difference can be set. If the temperature is still rising, when it rises to the set over-limit alarm temperature point, the over-limit alarm function is started. When the controlled temperature cannot be effectively controlled, in order to prevent the destruction of the equipment, the equipment can also be stopped by tripping the function to continue to operate.