1. Introduction
The Acrel ADW300 series wireless energy meters are designed for advanced energy monitoring in various applications. These meters feature multiple built-in communication modules, enabling seamless integration with IoT energy management systems or other remote connection demands. The ADW300 series offers a wide range of measurement capabilities and extraction function modules to meet diverse customer requirements. The product adheres to stringent quality standards, including IEC 62052-11, IEC 62053-22, and LVD certifications.
This manual provides detailed instructions for the installation, operation, and maintenance of your ADW300 series smart energy meter.
Video: Acrel ADW300 Series IoT Wireless Energy Meter Overview. This video introduces the ADW300 and ADW310 series, highlighting their applications in building energy management, solar PV monitoring, and machine equipment energy management. It also explains the wireless communication capabilities (4G, WiFi, LoRa) and advanced functions like I/O, alarm, and multi-tariff settings.
2. Product Features
- Multiple Communication Methods: Available with 4G-LTE, WiFi, LoRaWAN, LoRa, NB-IoT, and RS485 (Modbus-RTU) communication options.
- Comprehensive Measurement: Measures 3-phase AC kWh, kVarh, Active Power, Reactive Power, Quadrant Reactive Power Energy, Current, Voltage, Voltage & Current Unbalance, Power Factor, Apparent Power, Frequency, and Harmonics (2nd-31st & THD).
- Optional Expanded Functions: Supports 4-channel DI (Digital Input), 2-channel DO (Digital Output), 4-channel cable temperature monitoring, and 1-channel residual current measurement.
- Alarm Functions: Configurable alarms for undervoltage, overvoltage, undercurrent, overcurrent, underload, overload, communication disconnection, and phase loss.
- HMI Programming: Easy configuration of CT/PT Ratio, phase wiring, and communication settings via keypads.
- Software Adjustment: Dedicated software for setting data upload intervals, WiFi configuration (Account & Password), server address, and port.
- Certifications: CE, IEC, LVD compliant.
3. Technical Specifications
| Parameter | Description & Value | |
|---|---|---|
| Voltage Input | Rated Voltage | 3x380~456Vac L-L or 3x660~792Vac L-L (via direct connection) 3x100~120Vac L-L (via PTs) |
| Reference Frequency | 45~65Hz | |
| Power Consumption | <10VA or 2W (A phase), <0.5VA (B phase, C phase) | |
| Current Input | Rated Current | 3x1000A AC/3×2000A AC (via Rogowski Coil) |
| Starting Current | 1% Ib (Class 0.5); 4% Ib(Class 1) | |
| Power Consumption | <2VA | |
| Phase Wiring | 3P4W | 3-phase 4-wire |
| 3P3W | 3-phase 3-wire | |
| Auxiliary Power Supply | Voltage Range | 85~265Vac |
| Power Consumption | <2W | |
| Measurement Performance | Standard | IEC 62053-22:2003; IEC 62053-21:2003 |
| kWh Accuracy | Class 0.5S | |
| Pulse | Width of Pulse | 80±20ms |
| Pulse Constant | 6400imp/kWh; 400imp/kWh | |
| Operating Temperature | -20℃~+55℃ | |
| Storage Temperature | -40°C ~+70°C | |
| Humidity | ≤95%RH, no condensation, without corrosive gas | |
| Altitude | ≤ 2000m | |
4. Components Included
- 1 x ADW300 Smart Energy Meter
- 3 x Rogowski Coils (1000A/2000A/3000A/4000A, 90mm/150mm aperture, depending on selected model)
- 1 x Antenna
Image: The ADW300 Smart Energy Meter, antenna, and three Rogowski coils.
5. Installation
5.1 Physical Installation
The ADW300 meter is designed for 35mm DIN rail mounting.
- Push off the buckle on the back side of the meter.
- Install the 35mm DIN rail on the slot behind the meter.
- Buckle up so that the DIN rail can be fixed.
- Successfully install the meter.
Image: Visual guide for installing the ADW300 meter onto a 35mm DIN rail.
5.2 Dimensions
Image: Front view dimensions of the ADW300 meter (72mm width, 87.8mm height, 92.6mm total height).
Image: Side view dimensions of the ADW300 meter (71.5mm depth, 54.1mm top depth, 33.1mm bottom depth).
5.3 Wiring Diagram
The ADW300 meter requires careful wiring for power supply, voltage input, current input, RS485 interface, digital output, digital input, and pulse output. Refer to the diagram below for correct connections.
Image: Detailed PIN overview and wiring diagram for the ADW300 meter. This diagram shows connections for power supply (L, N), voltage input (Phase A, B, C, Neutral), current input (Phase A, B, C), RS485 interface (A+, B-), digital output (DO1, DO2), digital input (DI1, DI2, DI3, DI4, COM), and pulse output (Ep+, Ep-).
5.4 Rogowski Coil Installation
The Rogowski coils are flexible current sensors that wrap around the conductors. Ensure proper connection to the meter's current input terminals.
Image: Step-by-step guide for installing the Rogowski Coil. This image illustrates how to open, wrap around a conductor, and close the Rogowski coil.
Image: Rogowski coils connected to the ADW300 meter, showing the three coils attached to the current input terminals.
5.5 Communication Setup
The ADW300 series meters offer various communication options. For wireless communication (4G, WiFi, LoRaWAN), the meter can directly send data to the IoT system. For LoRa communication, it can be paired with an IoT gateway.
Image: Diagram illustrating the application of ADW300 in an IoT Network. It shows smart meters communicating directly via 4G/WiFi/NB-IoT to a Cloud Server, or indirectly via LoRa/LoRaWAN/RS485 to a Gateway, which then connects to the Cloud Server. Clients' devices (mobile app, PC) access the IoT Energy Management System.
For initial setup and configuration, use the provided adjustment software to set data upload intervals, WiFi credentials (if applicable), server address, and port.
Image: QR Code scanning and ratio setting interface for the ADW300. This shows how to add a new device by scanning a QR code or manually entering the Gateway ID and Device Type, followed by setting PT and CT ratios.
6. Operation
6.1 Display and Indicators
The ADW300 features an LCD display for real-time data viewing and LED indicators for status. The display shows various electrical parameters like voltage, current, power, and energy consumption.
Image: An ADW300 meter installed in an electrical panel, displaying a voltage reading of 239.6V.
6.2 Keypad Operation
Use the keypads on the front panel to navigate through menus, view different parameters, and configure basic settings such as CT/PT ratios, communication parameters, and phase wiring.
6.3 Remote Monitoring (Mobile APP & PC Website)
The ADW300 series integrates with the Acrel IoT Energy Management System, accessible via a mobile app or PC website. This allows for remote data reading, data collection, energy report generation, and alarm functions.
- System supports all meters across the country whose data has been sent to cloud server through 4G, WiFi or Ethernet.
- Remote meter reading and data collection.
- Provides IoT APP for mobile phone side and IoT WEB for PC side.
- Generates energy data reports daily, monthly, and annually with year-on-year and period-on-period energy analysis.
- Provides various alarm functions to ensure stable system operation and protect property.
Image: Acrel IoT Platform (APP & WEB) dashboard. This image displays a comprehensive overview of energy statistics, project status, device status, and energy consumption reports, accessible from both mobile and PC interfaces.
7. Advanced Functions
7.1 I/O Functions
The optional I/O function allows for digital input and output, enabling the meter to interact with other systems or devices. Digital outputs can be used for indicator lights or remote control, while digital inputs can acquire circuit breaker (CB) on/off status.
Image: Diagram illustrating Digital Output (Indicator Light Remote Control) and Digital Input (Acquire CB On/Off Status) functions.
7.2 Alarm Functions
The meter can be configured to trigger alarms based on various electrical parameters exceeding or falling below set thresholds. This helps in proactive monitoring and fault detection.
Image: Graph demonstrating the Alarm Function, showing a 'Value of (Current/Voltage/Power)' over time with defined High Alarm Threshold and Low Alarm Threshold, indicating Normal Area and alarm zones.
7.3 Multi-tariff Setting
The ADW300 supports multi-tariff settings, allowing for different energy charges based on time periods (Spike, Peak, Flat, Valley).
Image: Graph illustrating Multi-tariff settings, showing different kWh/Charge rates over time, categorized into Spike, Peak, Flat, and Valley periods.
7.4 Power Quality Analysis
The meter provides power quality analysis features, including total harmonic distortion (THD) and individual harmonic components (2nd to 31st), as well as voltage and current unbalance.
Image: Graphs showing Harmonic analysis (waveform distortion) and Phase Unbalance (vector diagram of voltages Ua, Ub, Uc).
8. Troubleshooting
If you encounter issues with your ADW300 meter, consider the following common troubleshooting steps:
- No Power/Display: Check the auxiliary power supply connections and ensure the voltage is within the specified range (85~265Vac).
- Incorrect Readings: Verify that the CT/PT ratios are correctly set in the meter's configuration. Ensure Rogowski coils are properly installed and connected to the correct phases. Check for any loose wiring.
- Communication Failure: For WiFi/4G models, check network signal strength and ensure correct WiFi credentials or SIM card installation and activation. For RS485, verify wiring (A+, B-) and communication parameters (baud rate, parity). Ensure the IoT gateway is functioning correctly if used.
- Alarms Triggering Unexpectedly: Review the alarm threshold settings in the meter's configuration. Ensure they are appropriate for your application.
For persistent issues, refer to the detailed troubleshooting section in the full product manual or contact Acrel technical support.
9. Maintenance
The ADW300 series meters are designed for reliable operation with minimal maintenance. However, regular checks can ensure optimal performance and longevity:
- Regular Cleaning: Keep the meter's exterior clean and free from dust and debris. Use a soft, dry cloth for cleaning. Do not use abrasive cleaners or solvents.
- Connection Integrity: Periodically inspect all wiring connections for tightness and signs of corrosion or damage. Ensure Rogowski coils are securely fastened.
- Firmware Updates: Check the Acrel website or contact support for any available firmware updates to ensure your meter has the latest features and bug fixes.
- Environmental Conditions: Ensure the operating environment remains within the specified temperature and humidity ranges to prevent damage.
10. User Tips
- Data Storage: The meter has internal memory for data logging. For specific details on storage capacity and duration, refer to the detailed technical specifications or contact support. Data can typically be exported via the IoT platform.
- Programming and Export: The Smart Meter is programmable for various parameters. Data can be exported through the IoT platform (mobile app or PC website) for analysis.
- SIM Card for 4G Models: For 4G communication models, ensure a compatible SIM card is correctly inserted and activated with a suitable data plan. The specific 3G/4G/5G compatibility depends on the communication module variant.
- Remote Access: Utilize the Acrel IoT APP or PC website for convenient remote monitoring of all collected data, including power consumption, current, and voltage.
11. Certifications
The Acrel ADW300 series smart energy meters are certified to meet international standards, ensuring quality and safety.
- CE Certification: Complies with European Union safety, health, and environmental protection requirements.
- RoHS Compliance: Adheres to the Restriction of Hazardous Substances Directive.
- IEC Standards: Meets International Electrotechnical Commission standards IEC 62053-22:2003 and IEC 62053-21:2003 for electricity metering equipment.
Image: CE Certification logo, indicating compliance with European standards.
Image: IEC Standard logo, representing compliance with International Electrotechnical Commission standards.
Image: Certificate of Conformity from TUV Austria for ADW series products, confirming compliance with EU directives and IEC standards.
Image: Certificate of Examination from MiCOM Labs for Energy Meter, confirming compliance with Radio Equipment Directive (RED) 2014/53/EU.
12. Warranty and Support
The Acrel ADW300 series comes with a 2-year warranty. For technical support, product inquiries, or any assistance, please visit the Acrel official website or contact their sales personnel.
