The meter requires at least 6.5V to operate. If measuring a source below 6.5V, a separate power supply is required for the meter's logic 0;a9c;.
Short press the button to toggle the blue LCD backlight on or off. The meter remembers the last backlight state even after power‑off.
: Built-in toggle for high visibility or power saving.
: Connect the low-voltage source negative to Side A of the Shunt. Connect the Load negative to Side B of the Shunt. peacefair pzem-051 manual
Long press the button until "" appears in the power display area0;7c5; 0;92d;.
The measured voltage has crossed your preset high or low voltage alarm thresholds. Readjust your alarm settings using the button menu. To help tailor this information further, let me know:
If you hold the button for 5 seconds without releasing, the reset aborts. 3. Set Voltage Alarm Thresholds The meter requires at least 6
The meter requires a shunt resistor (typically 50A or 100A) to measure high current. Correct wiring is essential to avoid inaccurate readings or damage: Shunt Connection : The shunt must be connected in series with the negative line of the load. Voltage Sourcing
: Allows you to set a voltage alarm threshold.
: For the most accurate and up-to-date information, always refer to the official user manual that came with your specific device. The meter remembers the last backlight state even
The PZEM-051 is operated via a single button located on the front of the unit. The following table details the various functions accessible through different button presses.
| Feature | PZEM-051 | PZEM-061 | | :--- | :--- | :--- | | Measurement type | Shunt (direct) | CT (clamp) | | Max current | 100A (needs shunt) | 100A (clamp-on) | | Isolation | No (shunt is in circuit) | Yes (CT isolates) | | Best for | DC Solar / RV | AC Mains |
If the above steps do not resolve the issue, contact Peacefair or your supplier for further assistance. Do not attempt to open the meter—it contains no user‑serviceable parts.
The high voltage alarm value shows in the voltage area; the low voltage alarm shows in the current area. Short press
The is a highly accurate, 4-in-1 digital DC multifunction panel meter . It is designed to track voltage, current, active power, and energy consumption simultaneously on a single large LCD screen. Ideal for solar panel setups, battery charging systems, off-grid cabins, and DIY power electronics, this device manages loads up to 100A and 100V DC.