Description
Archmeter PA3000 Smart Power Meter
PA3000 Smart Power Meter
The PA3000 is a multi-function smart power meter designed for continuous monitoring of medium-voltage and high-voltage three-phase electrical systems. It provides power measurement, power quality analysis, Ethernet access, event logging and power report generation in one advanced metering device.
With Class 0.5 bi-directional energy measurement, Ethernet and RS485 communication, Modbus TCP/IP, Modbus RTU and DNP 3.0 protocol support, individual harmonic measurement up to the 31st order, daily reports, alarm logs and rich I/O, the PA3000 is suitable for power management, SCADA integration and energy monitoring applications.
Meter Type
Smart power meter with Ethernet and RS485
Accuracy
Class 0.5 bi-directional energy measurement
Power Quality
THD and individual harmonics up to 31st order
Protocols
Modbus TCP/IP, Modbus RTU and DNP 3.0
Product Description
The PA3000 Smart Power Meter is designed for high-performance electrical monitoring where accurate power data, energy data, power quality information, event records and reporting functions are required. It measures full electrical parameters including voltage, current, active power, reactive power, apparent power, power factor, frequency, energy and demand.
Its built-in Ethernet and field communication interfaces allow it to be integrated with different SCADA, EMS, BMS and power management systems. The PA3000 is also compatible with PM3000 Power Master to build a cost-effective power monitoring and management system.
Best use case: PA3000 is suitable for main incomers, MV / HV secondary metering, critical feeders, generator panels, high-value distribution panels and power quality monitoring points where Ethernet, RS485, reports and harmonics are required.
PA3000 Brief
Continuous 3-Phase Monitoring
Designed for continuous monitoring of medium-voltage and high-voltage three-phase electrical systems.
Full Power Parameters
Measures V, I, kW, kvar, kVA, PF, kWh, kvarh, Hz, demand and related electrical values.
Revenue-Class Accuracy
Provides 0.5% class energy measurement suitable for important metering and power management applications.
Ethernet Access
Built-in Ethernet supports Modbus TCP/IP for network-based monitoring and integration.
Field Communication
RS485 communication supports Modbus and DNP 3.0 protocols for SCADA and remote systems.
PM3000 System Compatibility
Fully compatible with PM3000 Power Master for building a cost-effective power management system.
Key Features
Class 0.5 Bi-Directional Energy
Measures delivered and received energy, including kWh, kvarh and kVAh.
Block or Rolling Demand
Supports block or rolling demand measurement for load and demand analysis.
Individual Harmonics
Measures total harmonic distortion and individual harmonics for three-phase voltage and current up to the 31st order.
Sag / Swell Recording
Provides configurable sag and swell set-points with time-stamped event recording.
Daily and Monthly Reports
Generates power usage reports including kWh, demand, peak THD, maximum / minimum voltage and maximum / minimum kW.
Ethernet and RS485
Supports both Ethernet and RS485 communication for flexible integration architecture.
Multiple Protocols
Supports Modbus TCP/IP over Ethernet, Modbus over RS485 and DNP 3.0 over RS485.
Rich I/O
Includes 4 analog inputs, 4 digital inputs and 2 relay outputs for alarms, status and signal integration.
Display and Report Menu
Front display supports power values, demand, harmonics, alarms, event logs, analog inputs and nameplate information.
Typical PA3000 System Architecture
PA3000 can be installed at a main incoming feeder, MV / HV metering panel, critical LV feeder or generator panel. Meter data can be viewed locally, transmitted through RS485 or Ethernet, integrated into PM3000 Power Master, SCADA or IoTWatt 4.0, and used for reports, power quality review and energy management.
1
CT / VT Inputs
2
PA3000 Meter
3
Ethernet / RS485
4
PM3000 / SCADA / IoTWatt
5
Reports / Events / Analytics
Display and Front-Panel Functions
The PA3000 display provides clear pages for average / total summary values, line-to-line voltage, line-to-neutral voltage, current, active power, apparent power, reactive power, true power factor, fundamental power factor, active energy, reactive energy, demand, frequency and digital I/O status.
| Display Function |
Displayed Values |
| Average / Total Result |
Average phase voltage, average current, total kW and total kvar. |
| Voltage |
Line-to-line voltage and line-to-neutral voltage values. |
| Current |
Line current values and neutral current. |
| Power |
Active power, apparent power and reactive power per phase and total. |
| Power Factor |
True power factor and fundamental power factor. |
| Energy |
Active energy and reactive energy, including delivered, received, total and net values. |
| Demand |
Last demand, current demand and demand time indication. |
| Frequency / Status |
Frequency, digital output status and digital input status. |
| Report Menu |
Daily report, diagnostic, harmonics, alarm, event log, analog input and nameplate information. |
Report and Diagnostic Functions
The PA3000 includes built-in reporting and diagnostic pages to support local investigation without requiring a separate software platform. The display report menu provides daily reports, diagnostics, harmonics, alarm records, event logs, analog input information and nameplate information.
| Function |
Description |
| Daily Report |
Provides today and yesterday report views. |
| Daily Energy Report |
Includes energy in kWh, maximum / minimum total power, maximum / minimum voltage average, maximum / minimum current average and maximum demand. |
| Diagnostic Report |
Provides this-period and last-reset diagnostic views. |
| Diagnostic Parameters |
Includes current time, max / min voltage, max / min current, max / min kW, max / min kVA, max / min PF, max / min voltage THD, max / min current THD and max demand. |
| Harmonics |
Displays voltage and current harmonics, including Va, Vb, Vc THD and individual harmonics up to 31st order. |
| Alarm and Event Log |
Provides time-stamped recording for alarms, sag, swell and event conditions. |
| Analog Input |
Displays analog input values for connected 4 20 mA signals. |
| Nameplate Information |
Provides meter information and configuration reference from the display menu. |
Comparison Power Meters
The PA3000 is positioned as a high-function smart power meter with Ethernet access, RS485 communication, harmonics, report generation, alarm logging and rich I/O functions.
Comparison Power Meters
Technical Specification
| Specification Group |
PA3000 Specification |
| Power Parameters |
Current: 3-phase and neutral, accuracy 0.1%.
Voltage: 3-phase phase-to-phase and phase-to-neutral, accuracy 0.1%.
Frequency: 50 / 60 Hz.
Total power: active, reactive and apparent power, accuracy 0.5%.
Power per phase: active, reactive and apparent power, accuracy 0.5%.
Power factor: total and per phase.
|
| Energy Measurement |
Active, reactive and apparent energy, accuracy 0.5%.
Bi-directional energy: delivered and received kWh, kvarh and kVAh.
|
| Demand Measurement |
Bi-directional block or rolling demand. |
| Power Quality Measurement |
Voltage and current THD and individual harmonics.
Sag / swell monitoring with configurable setting points.
|
| Report and Event Logging |
Daily report: today and yesterday.
Regular report: this period and last reset.
Event logging: sag, swell and alarm logging.
|
| Display |
Panel display: mono 128 × 128 TFT-LCD. |
| Digital Input |
4-channel dry contact inputs. |
| Digital Output |
2-channel relay outputs for alarm or kWh pulse output. |
| Analog Output |
4-channel 4 20 mA output for V, I, kW, kVA and kvar. |
| Voltage Connection |
10 600 V. |
| Current Connection |
0 1A or 0 5A. |
| Power Supply |
86 248 VAC or 100 300 VDC. |
| Environmental |
Operating temperature: -10°C to 55°C.
Storage temperature: -25°C to 60°C.
Humidity: 20% to 80% RH, non-condensing.
|
| Dimensions |
144 mm (L) × 144 mm (W) × 94 mm (H). |
| Communication |
Primary port: RS485 with Modbus or DNP 3.0 protocol.
Secondary port: Ethernet 10/100 Mbps with Modbus TCP/IP protocol.
|
Communication and Integration
PA3000 provides both field-level and network-level communication. RS485 is suitable for serial SCADA, BMS, EMS and gateway integration, while Ethernet allows faster network connection using Modbus TCP/IP.
| Interface |
Protocol / Function |
Typical Use |
| RS485 |
Modbus or DNP 3.0 |
SCADA, EMS, BMS, serial gateway, substation communication and legacy integration. |
| Ethernet |
10/100 Mbps, Modbus TCP/IP |
Network-based monitoring, PM3000 Power Master connection, server integration and IoTWatt 4.0 gateway architecture. |
| Digital Inputs |
4 dry contact inputs |
Breaker status, trip contact, equipment status and event correlation. |
| Relay Outputs |
2 relay outputs |
Alarm output or kWh pulse output. |
| Analog Outputs |
4 × 4 20 mA |
Analog retransmission of V, I, kW, kVA or kvar to PLC / BMS / legacy monitoring input. |
Typical Applications
MV / HV Secondary Metering
Suitable for medium and high-voltage systems using CT and VT secondary signals.
Main Incoming Metering
Monitor incomers with energy, demand, power factor, harmonics, reports and event records.
Critical Feeder Monitoring
Use PA3000 for important distribution feeders where power quality and event data are required.
Power Quality Monitoring
Monitor THD, individual harmonics, sag / swell and alarm events for maintenance and troubleshooting.
Power Management System
Integrate with PM3000 Power Master to build a cost-effective power monitoring and reporting system.
SCADA / EMS / BMS Integration
Use RS485 or Ethernet communication to connect with third-party supervisory control systems.
Integration with IoTWatt 4.0
When integrated with IoTWatt 4.0, PA3000 meter data can support advanced energy dashboards, feeder analytics, demand monitoring, harmonic visibility, alarm review, event investigation, digital energy audit evidence and EECA reporting support.
- Monitor voltage, current, kW, kvar, kVA, PF, kWh, kvarh, kVAh, Hz and demand.
- Use Class 0.5 bi-directional energy data for consumption, import / export and energy performance tracking.
- Use THD and individual harmonic data up to 31st order for power quality visibility.
- Use sag / swell and alarm event logs to support electrical troubleshooting.
- Use daily and monthly reports as supporting evidence for energy monitoring and review.
- Connect through Ethernet Modbus TCP/IP or RS485 Modbus using suitable gateway architecture.
- Use IoTWatt 4.0 for dashboards, analytics, digital energy audit, EECA reporting and continuous improvement.
Integration note: For IoTWatt 4.0, Ethernet Modbus TCP/IP is preferred where network access is available. RS485 Modbus can also be used through a suitable gateway such as RS2LAN, RS2MQTT or RS2WLAN.
Recommended Deployment Checklist
- Confirm whether the PA3000 is used on LV direct measurement or MV / HV CT and VT secondary measurement.
- Confirm voltage connection range and wiring arrangement.
- Confirm CT secondary: 1A or 5A.
- Confirm CT ratio, CT class, CT burden and CT polarity.
- Confirm VT ratio and voltage reference if used on MV / HV systems.
- Confirm communication method: RS485 Modbus, RS485 DNP 3.0 or Ethernet Modbus TCP/IP.
- Confirm IP address, Modbus address, baud rate, parity and communication mapping.
- Confirm digital input use for breaker or equipment status.
- Confirm relay output use for alarm or kWh pulse output.
- Confirm analog output assignment for V, I, kW, kVA or kvar retransmission.
- Confirm sag / swell, alarm and harmonic monitoring requirements.
- Confirm integration with PM3000 Power Master, SCADA, EMS, BMS or IoTWatt 4.0.
- Test phase sequence, CT direction, VT ratio, Ethernet, RS485, display readings, reports, alarms and event logs during commissioning.
PA3000 Smart Power Meter Supply, Commissioning and IoTWatt 4.0 Integration
Saturn Pyro supports Archmeter PA3000 Smart Power Meters for MV / HV power monitoring, main incomer metering, Class 0.5 energy monitoring, Ethernet / RS485 integration, harmonic analysis, report generation, alarm and event logging, PM3000 Power Master integration, SCADA / EMS / BMS connectivity and IoTWatt 4.0 digital energy audit projects in Malaysia.
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