Analog input/output interfaces are standard industrial signals of 4-20mA. Switching input/output interfaces are level signals, pulse signals, and contact signals, etc. The voltage value of a high-level signal should be between 20V-24V, and the voltage value of a low-level signal should be between 0-4V. 1.4 Safety Performance Insulation Resistance: The insulation resistance between input and case should be >50MΩ. Dielectric Strength: The instrument can withstand a dielectric strength test voltage of 2000V between input and case (AC RMS) for 1 minute without breakdown or arcing. Noise ≤45db 1.5 Protection Performance Temperature Protection: When the temperature inside the potentiostat case reaches 65°C, the fan runs at full speed; when the temperature reaches 85°C, the potentiostat automatically shuts down and cools down. The equipment automatically returns to normal operation when the protection conditions are restored to normal. Power Grid Protection: When the power grid voltage exceeds 30% of the rated value, the potentiostat stops running, and automatically returns to normal operation when the protection conditions are restored to normal. Limit Protection: Output Voltage Limit: Rated output voltage × 110% Output Current Limit: Rated output current × 110% Reference Potential Limit: -3V～0V