Press the button briefly to save the value and move to the next parameter.
The grid voltage is dipping below your P5 setting. Check if heavy machinery is starting up on the same phase line. Consider lowering P5 slightly if your local grid is inherently unstable, but do not drop below 150V to protect motor-driven appliances. Sinotimer Svp-916 Manual Pdf
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Ensure all screws are tight to prevent overheating. Press the button briefly to save the value
An interesting technical note in the SVP-916 Manual warns that if the under-voltage action time is set higher than 0.3 seconds , the internal microcontroller (MCU) might lose power during a drop before it can successfully trigger the relay to disconnect the circuit. Consider lowering P5 slightly if your local grid
Dual LED display showing real-time voltage (Upper) and current (Lower). m.media-amazon.com Setting Parameters (Quick Guide) To enter the setting mode, press and hold the button for buttons to adjust values, and press briefly to cycle through the following parameters: m.media-amazon.com Adjustable Range Over-voltage Value 221V–300V (or OFF) Over-voltage Recovery 220V–299V Over-voltage Action Time 0.1s–10s Under-voltage Value 150V–219V (or OFF) Under-voltage Recovery 151V–220V Under-voltage Action Time 0.1s–10s Over-current Value 1A to Max Rated Current Over-current Action Time 0.1s–512s Fault Recovery Delay Power-on Delay Reset Mode AU (Auto) or HA (Manual) Data source: SVP-916 Manual m.media-amazon.com Installation & Wiring Input/Output: Connect the power source to the (Top) side and the load to the (Bottom) side. Safety Precaution: The device cuts off the line during a fault, but the Neutral (N)