Meter Function Overview
EasyLogic™ PM4500 series power meters provide the basic measurement capabilities required for monitoring single-phase or three-phase electrical installations (e.g., current, voltage and energy).
The PM4500 series power meters support multiple functions, some of which are listed below:
- LCD display screen: Equipped with an LCD segment display. Parameters can be viewed and operated via four front-panel buttons. Active, reactive and apparent energy readings Power factor measurement (True PF and Displacement PF)
- LED pulse lamp for energy pulse indication
- Terminal functions: Supports Modbus RTU, DL/T645 protocol communication Digital input Relay output: configurable for alarm and other functions
Meter Model
| Model | Product SKU | Description |
|---|---|---|
| PM4513 | METSEPM4513 | Energy meter with LCD segment display, measures harmonics up to the 31st order, with 4DI and 2RO, supports Modbus RTU and DL/T645 communication protocols. Active energy meets accuracy class 0.5S, with carbon emission statistics. |
Function Summary
| Parameter | PM4513 |
|---|---|
| Measurement method | Measurement input via CT (1A, 5A) |
| Wh accuracy class | Class 0.5S(Class C) |
| varh accuracy class | Class 2.0 |
| Sampling rate per cycle | 128 |
| Current: | ✓ |
| • Per-phase and 3-phase average | |
| • Calculated neutral current | |
| Voltage: | ✓ |
| • Phase voltage – per-phase and 3-phase average | |
| • Line voltage – per-phase and 3-phase average | |
| Power factor | ✓ |
| • Per-phase and 3-phase total | |
| Frequency | ✓ |
| Power: | ✓ |
| • Active power (kW)- Per-phase and total | |
| • Reactive power (kvar)- Per-phase and total | |
| • Apparent power (kVA)- Per-phase and total | |
| 3-phase unbalance | CurrentVoltage |
| Demand parameters(kW, kVA, kvar, I) | ✓ |
| • Previous demand | |
| • Current demand | |
| • Predicted demand | |
| • Peak demand: timestamped peak demand ⁽¹⁾ | |
| Energy: kWh, kVAh, kvarh | 4 quadrantsExport (Input / Forward)Import (Output / Forward)Total (Export + Import) ⁽¹⁾Net (Export – Import) ⁽¹⁾ |
| Meter runtime ⁽¹⁾ | ✓ |
| Load runtime ⁽¹⁾ | |
| THD %: | |
| • Per-phase voltage L-N | ✓ |
| • Each line voltage L-L | |
| • Per-phase current | |
| Harmonics | Up to 31st harmonic |
| Timestamped minimum / maximum values ⁽¹⁾ | ✓ |
| • Per-phase current | |
| • Total active power | |
| • Total apparent power | |
| • Total reactive power | |
| RTC | ✓ |
| Communication | RS-485(Modbus RTU/DL/T645) |
| Digital input (4*DI) | ✓ |
| Relay output (2*RO) | ✓ |
| Energy pulse (pulse lamp) | ✓ |
⁽¹⁾ Indicates features only readable via communication.
