Peacefair Pzem-051 Manual 〈100% Extended〉

: Ensure the load is drawing power. Verify that the shunt sits on the negative rail of the circuit, not the positive rail. Energy readings are erratic or jumping

Allows setting a high voltage threshold. The backlight and voltage display will flash to warn of over-voltage. peacefair pzem-051 manual

Press and hold the button for 3 seconds to save your limits. 4. Choose Shunt Range (50A vs 100A) : Ensure the load is drawing power

While not strictly in the manual, these tips come from community experience: The backlight and voltage display will flash to

: Connect the positive side of your low-voltage battery/source directly to your Load's positive terminal.

Short-press to increment the flashing digit; it will automatically move to the next digit after 3 seconds of inactivity. Long-press for 5 seconds to save and exit. Long-press the key until " Curr " appears.