One of the main advantages of the PZEM series is the ability to communicate with microcontrollers (Arduino, ESP8266, STM32, etc.).
The meter allows you to set an over-voltage alarm threshold and configure the external shunt's rating.
For detailed technical specifications or to download the official documentation, you can refer to the PZEM-051 Datasheet Instructional PDF from Scribd for a solar battery setup? Review of Peacefair PZEM-051 100A DC Current Power meter peacefair pzem-051 manual
Toggles the blue LCD backlight on or off. The device saves this state when powered down. 2. Reset Energy (Wh/kWh)
Built-in storage retains energy data even during power outages. Wiring and Installation One of the main advantages of the PZEM
This indicates the device is measuring over the set threshold, or there is a wiring fault.
: While the manual may suggest the positive line, many community resources show the shunt is correctly connected inline with your main negative cable , coming from your battery to your load (e.g., an inverter). Connect the main negative cables to the shunt's large screws . The correct wire must go to the "load side" of the shunt versus the "battery side". Review of Peacefair PZEM-051 100A DC Current Power
: Automatically saves energy data (kWh) during power failures.
Proper wiring is critical to avoid damaging the meter or your circuit. The
Peacefair PZEM-051 DC Digital Multi-Function Meter Manual and User Guide