Ensure the shunt wires are tight. Verify you are using a 75mV shunt.
Wire the positive source terminal to Terminal 1 (V+).
0 ~ 100A (depending on the external shunt used). Rated Power: Up to 10kW (10,000W). Accuracy: Grade 1.0.
| Parameter | Details | | :--- | :--- | | | 6.5 V to 100 V DC | | Current Range | 0–100 A (depends on external shunt) | | Rated Power | 0–10 kW | | Energy Range | 0–9999 kWh | | Measurement Accuracy | Class 1.0 (±1%) | | Self-Consumption | ≤ 12 mA | | Display | Large LCD with blue backlight | | Panel Cutout | ~84.6 × 44.6 mm (module: 89.6 × 49.6 × 24.4 mm) | | Operating Temperature | -10 °C to 60 °C | peacefair pzem-051 manual
The device features a single button used to control all settings 0;17;.
Wire Pin 2 ( V- ) to the negative terminal of your DC power supply. :
The Peacefair PZEM‑051 is a versatile and affordable tool for monitoring DC power systems. By carefully following the wiring instructions and respecting voltage/current limits, you can obtain accurate and reliable measurements for solar installations, battery banks, electric vehicles, and other DC‑powered projects. Ensure the shunt wires are tight
Ensure this setting matches the physical rating of your attached shunt. Troubleshooting and FAQ Why is my display completely blank?
The Peacefair PZEM-051 is a 6.5V–100V DC digital multi-function meter designed for monitoring voltage, current, power, and energy in systems up to 100A, featuring data retention and a backlight. Installation requires an external 100A/75mV shunt on the negative load line, with setup options for configuring alarm thresholds and selecting the appropriate shunt range. The full user guide and wiring instructions are available in the PZEM-051 manual .
Key features of the PZEM-051 include:
The screen will show the current high-voltage (left) and low-voltage (right) alarm thresholds 18;write_to_target_document7;default0;c59;18;write_to_target_document1a;_Qn3uaYrfAtKLwbkPgMu7mQs_20;957;.
| Symptom | Manual’s Solution | Real-world Fix | | :--- | :--- | :--- | | No display | Check Aux power polarity | Aux power needs higher voltage than measured line if using single supply | | Current reads 0.00 | Shunt disconnected | Verify 75mV rating matches meter (50A shunt = 75mV output) | | Erratic readings | Loose sense wires | Solder sense wires directly; do not use terminal blocks |
Displays real-time power consumption in Watts (W) or Kilowatts (kW). 0 ~ 100A (depending on the external shunt used)