1. Introducció
The Acrel ACR10R KWh 3 Phase Energy Meter is designed for bidirectional energy monitoring, particularly suitable for solar power applications. It accurately measures active and reactive power, current, voltage, frequency, and power factor in three-phase systems. This meter supports communication via RS485 (MODBUS-RTU) and can be paired with external split-core current transformers (CTs) or Rogowski coils for flexible installation. Its compact design allows for 35mm DIN rail mounting, making it ideal for energy-saving renovation projects and power monitoring in distributed photovoltaic grid-connected systems.
2. Característiques del producte
- Capacitats de mesura: Measures 3-phase active power, reactive power, current, voltage, freqüència i factor de potència.
- Current Rating Options: Supports various current ratings up to 300A with external split-core CTs (10mm/80A, 16mm/120A, 24mm/200A, 36mm/300A) or up to 20000A with Rogowski coils.
- Comunicació: RS485 interface with MODBUS-RTU protocol for data exchange.
- Aplicació: Ideal for distributed solar PV systems and anti-reflux inverter applications.
- Visualització: Clear LCD for parameter display and programming.
- Instal·lació: Designed for easy 35mm DIN rail mounting.
- Font d'alimentació: Wide range AC (85~265V) or DC (100~350V) power supply.
- Certificació: Certificat CE.
- Funció opcional: Harmonic Monitoring.
- Bidirectional Metering: Supports both active and reactive energy metering.
- Keypad HMI: Integrated keypads for parameter display setting and communication configuration.
3. Especificacions
| Categoria | Paràmetre | Detalls |
|---|---|---|
| General | Número de model | ACR10R-D36TE4 |
| Dimensions | 85 * 64 * 54 mm | |
| Mesurament | Net Work | 3 fase 3 fils, 3 fases 4 fils |
| Freqüència | 45 ~ 65 Hz | |
| Voltage | AC 57.7V/100V (100V), 220V/380V (400V) | |
| Corrent màxim de funcionament | 150A & Above (up to 300A with CTs, 20000A with Rogowski Coil) | |
| Mesura del rang d'energia | 0-99999.9 kWh | |
| Paràmetres de mesura | U, I, P, Q, S, PF, F (Voltage, Current, Active Power, Reactive Power, Apparent Power, Power Factor, Frequency) | |
| Precisió | Classe de precisió | 1 |
| Precisió de freqüència | 0.05 Hz | |
| Poder | Font d'alimentació | AC 85~265V or DC 100~350V; DC 24V(±10%); DC 48V(±10%) |
| Consum | ≤ 10VA | |
| Bateria inclosa | Sí | |
| Comunicació | Interfície | RS485 |
| Protocol | MODBUS-RTU | |
| Mostra | Tipus | LCD |
| Mode de visualització | Field LCD | |
| Medi ambient | Temperatura de funcionament | -10 ℃ ~ 55 ℃ |
| Temperatura d'emmagatzematge | -20 ℃ ~ 70 ℃ | |
| Humitat relativa | 5% ~ 95% (sense condensació) | |
| Seguretat | Vol. de resistència a la freqüència de potènciatage | AC2kV/1min (Auxiliary power, switch volume output, current input, voltage input, communication, pulse output, switch volume input) |
| Resistència d'aïllament | >100MΩ (Input, Output terminal to housing) |
4. Contingut del paquet
The standard package for the ACR10R Energy Meter includes:
- 1 x Acrel ACR10R 3 Phase Energy Meter
- 3 x External Split-Core Current Transformers (CTs) - Specific current rating depends on the selected model (e.g., 80A, 120A, 200A, 300A)
- Manual d'usuari (aquest document)
5. Configuració i instal·lació
5.1. DIN Rail Installation
- Push off the buckle on the back side of the meter.
- Install the meter onto a 35mm DIN rail by aligning the slot behind the meter with the rail.
- Buckle up the meter to fix it securely on the DIN rail.
- Ensure the meter is successfully installed and stable.
5.2. Current Transformer (CT) Installation
The ACR10R meter can be paired with either split-core CTs or Rogowski coils. Ensure correct polarity and secure connection for accurate measurements.
- Split Core CT Installation: Open the CT, place the conductor through the center, and close it securely. Ensure the direction of current flow matches the CT's arrow for correct measurement.
- Rogowski Coil Installation: Wrap the Rogowski coil around the conductor.
Video 1: Demonstration of energy meter and Rogowski coils.
6. Esquemes de cablejat
Proper wiring is critical for the safe and accurate operation of the ACR10R energy meter. Refer to the following diagrams for common configurations.
6.1. General System Connection
6.2. Detailed Wiring for 3-Phase Systems
6.3. Bidirectional Metering Diagram
6.4. Distributed Solar PV Application Diagram
7. Instruccions de funcionament
The ACR10R meter features an LCD display and keypad HMI for user interaction.
7.1. Pantalla LCD
The LCD provides real-time readings of various electrical parameters such as voltage, current, power, frequency, and energy consumption. It also serves as the interface for programming and configuration.
7.2. Keypad HMI
Use the integrated keypads (FN, Set, and arrow buttons) to navigate through menus, view different parameters, and configure settings such as communication parameters (address, baud rate) and wiring modes (3P3W, 3P4W).
8. Manteniment
- Neteja: Keep the meter clean and free from dust. Use a soft, dry cloth for cleaning. Do not use abrasive cleaners or solvents.
- Condicions ambientals: Ensure the operating environment adheres to the specified temperature and humidity ranges to prevent damage.
- Comprovacions de connexió: Inspeccioneu periòdicament totes les connexions del cablejat per assegurar-vos que estiguin ben fixades i que no presentin corrosió.
- Actualitzacions de firmware: Comproveu el del fabricant weblloc web per a qualsevol actualització de firmware disponible per garantir un rendiment òptim i l'accés a noves funcions.
9. Solució De Problemes
- Sense pantalla/alimentació: Check the power supply connections (AC 85~265V or DC 100~350V) and ensure they are within the specified range. Verify that the power source is active.
- Lectures incorrectes: Double-check all CT and voltage wiring connections for correct polarity and phase sequence. Ensure the CTs are correctly installed around the conductors. Verify the meter's configuration settings match your system.
- Problemes de comunicació (RS485): Confirm the RS485 wiring is correct (A to A, B to B). Check the communication parameters (baud rate, address) on the meter and the connected device (e.g., inverter, gateway). Ensure termination resistors are correctly used if necessary.
- El comptador no respon: If the meter becomes unresponsive, try power cycling it (turn off, wait a few seconds, then turn on). If the issue persists, consult the warranty and support section.
10. Consells d'usuari
- Registre de dades: For applications requiring detailed historical data, such as measurement profiles every 15 minutes, ensure the optional data logging feature is enabled and configured. Refer to the programming interface for setup.
- CT Selection: Always choose CTs with a current rating appropriate for your application to ensure accuracy and prevent damage.
- Anti-Reflux Function: When using the meter with an inverter for anti-reflux, ensure the RS485 communication is correctly established and configured according to both the meter and inverter manuals.
11. Garantia i assistència
The Acrel ACR10R Energy Meter comes with a 2 any de garantia des de la data de compra. Aquesta garantia cobreix els defectes de materials i de mà d'obra en ús normal.
For technical support, troubleshooting assistance, or warranty claims, please contact the ACREL Official Store or your authorized dealer. Provide your product model number (ACR10R-D36TE4) and a detailed description of the issue when seeking support.
