: If you hold the button again instead of short pressing, the reset is canceled. 3. High Voltage Alarm Threshold Settings
For Arduino/ESP32:
Press and hold the button for 5 seconds until the energy display area flashes. Release: Let go of the button. peacefair pzem-051 manual
Connects to the positive terminal of the DC power source.
Ensure the meter shares a common negative ground through the shunt system. : If you hold the button again instead
: You realize the meter requires a voltage between 6.5V and 100V to power its own display. If your battery drops below 6.5V, the screen goes dark—a cliffhanger for many 6V battery users.
The Peacefair PZEM-051 is a digital multi-function power meter designed to monitor direct current (DC) electrical systems. It measures four critical electrical parameters simultaneously: voltage, current, power, and energy consumption. This guide serves as a comprehensive manual for installing, wiring, and operating the device safely. Technical Specifications Measurement Range Resolution 6.5 – 100 VDC Current 0 – 100 A (with external shunt) Power 0 – 10 kW 0.1 W ( Energy 0 – 9999 kWh 1 Wh ( Operating Voltage: 6.5 – 100 VDC Test Voltage: 6.5 – 100 VDC Rated Power: 100A / 10000W Operating Temperature: -10°C to 60°C Operating Humidity: 35% to 85% RH Wiring Diagrams and Installation Release: Let go of the button
0A to 100A (Requires the external shunt) Power Test Range: 0kW to 10kW Energy Accumulation Range: 0 to 9999kWh Measurement Accuracy: 1.0 grade Display Type: Large LCD with an independent blue backlight Wiring and Connections