Displays as 0.0–999.9W under 1kW; displays as 1000–9999W above 1kW.
The PZEM-051 requires an external current shunt to measure current up to 100A safely. Do not pass the full load current directly through the meter housing. Step-by-Step Wiring Connection
| Parameter | Range | Resolution | Accuracy | | :--- | :--- | :--- | :--- | | | AC 80V – 260V | 0.1V | ±0.5% | | Current | 0 – 100A | 0.01A (0-10A), 0.1A (10-100A) | ±0.5% | | Active Power | 0 – 20kW | 0.1W – 10W | ±0.5% | | Energy | 0 – 9999.9kWh | 0.001kWh – 1kWh | ±0.5% | | Operating Frequency | 45Hz – 65Hz | 0.1Hz | | | Data Interface | TTL Serial (RS485 on some variants) | | | peacefair pzem-051 manual
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.
0.00 – 99.99A (Requires 100A/75mV or 50A/75mV shunt) Operating Instructions Displays as 0
[ Positive (+) Power Source Line ]--------------------------> To Load (+) | [Pin 1: Volt +] [Pin 2: Volt -] | [ Negative (-) Power Source Line ]----*---> [ Shunt Box ] ---> To Load (-) | | [Pin 4] [Pin 3] Safety Rules This module is strictly for indoor use. Applied load must not exceed the rated power (10 kW).
: The meter draws power directly from the source if it is above 6.5V. If monitoring a lower voltage, an independent power supply is necessary. Visual Indicator Step-by-Step Wiring Connection | Parameter | Range |
, providing detailed instructions on installation, wiring, feature configuration, and troubleshooting based on standard technical documentation. 1. Technical Specifications
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
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.
