1. Introducció
This manual provides detailed instructions for the installation, operation, and maintenance of your EARU Three Phase Tuya WiFi Smart Bi-Directional Energy Meter with 3 CT Clamps and integrated Leakage, Over/Under Voltage Protector, and Relay Switch Limit. This device is designed for precise energy monitoring and protection in three-phase electrical systems, offering smart control and data access via WiFi.
Figure 1: EARU Three Phase WiFi Smart Energy Meter & Protector
2. Informació de seguretat
- La instal·lació i el manteniment només han de ser realitzats per electricistes qualificats.
- ALWAYS turn off the main power supply before installing or servicing the device to prevent electric shock.
- This product does not have an isolation function. Ensure power is off before any repairs.
- The neutral wire (N) of this product is directly connected without a disconnection function.
- The device must be wired according to the markings on the unit.
- Although this device has protection functions, it cannot replace a normal circuit breaker. Always install a standard circuit breaker upstream for comprehensive protection.
- Apretar tot clamp screws firmly to avoid damage to the device caused by poor contact.
3. Característiques del producte
- Bi-Directional Energy Monitoring: Measures both forward (positive) and reverse (negative) energy consumption, ideal for solar installations.
- Protecció integral: Inclou més de Vol.tage, sota el voltage, Over Current, Under Current, Leakage, Voltage Imbalance, Phase Shortage, and High Temperature protection.
- Control intel·ligent: Remote control via Tuya Smart / Smart Life app.
- Control de veu: Compatible amb Google Assistant i Amazon Alexa.
- Temporitzadors programables: Countdown, Timed, and Recurring timer modes for automated control.
- Memòria de fallada d'alimentació: Retains data and returns to pre-power failure state upon restoration.
- Visualització de dades en temps real: LCD screen shows voltage, current, power, frequency, power factor, and energy consumption.
- Configuració d'alarma: Customizable thresholds for various protection parameters.
- Registre de dades: Records operation history and energy statistics.
Figure 2: Key Features and Display Modes
4. Contingut del paquet
- 1 x EARU Three Phase WiFi Smart Energy Meter & Protector Unit
- 3 x Current Transformer (CT) Clamps (Amperage depends on model purchased)
5. Especificacions
Figure 3: Technical Data
| Atribut | Valor |
|---|---|
| Número de model | EASEM-G-TY-W |
| Voltage | AC380V (L+N=AC80-240V) |
| Operació Voltage | AC80V-400V (Single Phase) |
| Corrent nominal | 80A/120A/200A/300A/500A/750A/1000A (Depends on CT) |
| Freqüència nominal | 50/60Hz |
| Precisió de la mesura | ±1%/Class 1 (80-300A starts from 0.03A, 500-1000A starts from 0.1A) |
| Device Data Fresh Speed | 1 Time/S |
| App Data Fresh Speed | If fluctuations in kWh (≥5), V (≥5V), A (≥0.8A), or Temperature (≥5°C) occur → Upload to App immediately; otherwise, upload every 5 minutes. |
| Consum d'energia | ≤1.5 W |
| Instal·lació | 35MM Din Rail |
| Temperatura de treball | -10 ℃ ~ + 55 ℃ |
| Temperatura d'emmagatzematge | -40 ℃ ~ + 70 ℃ |
| Humitat de treball | 5% ~ 95% HR |
| Dimensions | 90*72.5*60MM (L*W*H) |
| Tipus de visualització | LCD |
| Max kWh Record | 999999 kWh |
| Display Working Time | Sempre activat |
| Capacitat de càrrega | 0.05Ib-Imax |
| Estàndard | IEC62053-21&GB/T17215.321-2008 |
| Certificació | CE, FCC |
| Garantia | 1 any |
Figura 4: Dimensions del producte
6. Instal·lació
6.1 Muntatge
The energy meter is designed for 35mm DIN rail installation. Ensure a secure fit within your electrical panel.
6.2 CT Clamp Instal·lació
The Current Transformer (CT) clamps are crucial for current measurement. Each CT clamp has an arrow or 'P1→P2' / 'K→L' marking on its body or a sticker. This indicates the direction of current flow. The CT supports bidirectional sensing. If the current direction is opposite to the CT's marking, the power reading will be negative. Ensure the CT is applied to the correct cable and its direction is consistent with your measurement needs.
Figura 5: CT Clamp Instal·lació i dimensions
6.3 Instruccions de cablejat
Refer to the wiring diagrams below for proper connection. Connect the AC input lines to the appropriate terminals (L1, L2, L3, N) and the CT clamps to the respective phase cables. Ensure all connections are tight and secure.
Nota important: A circuit breaker and a shunt trip device are required for the protection functions to operate. These are NOT included in the package and must be purchased separately if needed.
6.3.1 Energy Meter + Protector Wiring Diagram
Figure 6: Wiring for Energy Meter with Protector Functions
For the protector function with a shunt trip release:
- Connect the other wire of the shunt trip release to terminal 16 (Normally Open - NO).
- Connect the neutral wire (N) from the electric meter to the common (COM) terminal 15.
- Terminal 15 is the common contact (COM). Terminal 16 is the Normally Open (NO) contact, with a maximum load capacity of 5A.
Wiring Instructions for a Three-Phase Circuit Breaker with an Integrated 220V Shunt Trip Release:
Connect one wire of the shunt trip release to the C-phase (Phase C) point of the circuit breaker's output line. WARNING: This wire can only be connected with the circuit breaker output line, not the input line. If connected to the input line, the Shunt Trip Release will be burnt!
6.3.2 Pure Energy Meter Wiring Diagram
Figure 7: Wiring for Pure Energy Meter Functionality
6.3.3 Definició de la interfície
Figure 8: Terminal Interface Definitions
7. Funcionament
7.1 Pantalla local
The device features an LCD screen that cycles through various parameters. Use the navigation buttons (Up, Down, OK) to view diferents modes de visualització i configuracions.
7.2 App Integration (Tuya Smart / Smart Life)
The meter integrates with the Tuya Smart or Smart Life app for remote monitoring and control. Follow these steps to connect your device:
- Download the Tuya Smart or Smart Life app from your app store.
- Registreu-vos o inicieu sessió al vostre compte.
- Ensure your device is powered on and in pairing mode (WiFi indicator blinking).
- In the app, tap '+' to add a new device. The app should automatically discover the device. If not, select 'Add Manually' and choose 'Breaker' or 'Socket (Wi-Fi)' under Electrical.
- Introduïu les credencials de la vostra xarxa Wi-Fi (cal una xarxa de 2.4 GHz).
- Once connected, the device will appear in your app, allowing you to view real-time data, energy statistics, operation records, and configure settings.
Video 1: App Pairing and Feature Demonstration
Figure 9: Tuya Smart App Interface for Monitoring and Settings
7.3 Control de veu
The device supports voice control through Google Assistant and Amazon Alexa. After linking your Tuya Smart/Smart Life account to your voice assistant, you can use commands like "Alexa/Google, Turn On The Living Room Light" (if connected to a controlled load) or inquire about energy status.
Figura 10: Integració del control per veu
8. Configuració
8.1 Protection and Alarm Settings
The device offers extensive customizable protection settings. These can be configured via the device's buttons or through the Tuya Smart/Smart Life app.
Figure 11: Alarm Setting Overview
| Paràmetre | Rang ajustable | Valor per defecte |
|---|---|---|
| Més del voltage Límit | 120-300V | 275 V |
| Sota el voltage Límit | 80-210V | 175 V |
| Over Current Limit | 1-100A | 80A |
| Under Current Limit | 1-100A | 10A |
| Leakage Current Limit | 10-100 mA | 30 mA |
| Alarma d'alta temperatura | 10-85 ℃ | 85℃ |
| Three-Phase Current Imbalance Alarm | 10-100% | 20% |
| Voltage Three-Phase Imbalance Alarm | 0-100% | 20% |
| Over & Under Voltage Protection Recovery Time | 1-9999 segons | 20 s |
| Over & Under Current Protection Delay | 0000-9999 segons | 5s |
| Over & Under Current Protection Recovery Time | 0000-9999 segons | 20 s |
| Under & Over Voltage Protection Delay | 1-9999 segons | 3s |
| Lost Current Recovery Delay Time | 1-9999 segons | 20 s |
| Time Threshold of Lost Flow Event | 1-999 segons | 10 s |
| Energy Consumption Zero Clearing | N/A | Desactivat per defecte |
| Restabliment de la configuració de fàbrica | N/A | Desactivat per defecte |
8.2 Funcions del temporitzador
The app allows you to set various timer functions to automate the device's operation:
- Mode de compte enrere: Configureu un temporitzador perquè el dispositiu s'apagui després d'un temps especificat.
- Mode cronometrat: Schedule specific ON/OFF times for the device.
- Recurring Timer Mode: Set daily or weekly schedules for repeated operations.
- A poc a poc: Configure the device to turn on for a brief period after being triggered.
Figure 12: Timer Function Examples
9. Consells d'usuari
- Connectivitat Wi-Fi: If you experience issues with the Wi-Fi function, ensure your router is broadcasting a 2.4GHz network. Check that the device is in pairing mode (blinking Wi-Fi indicator) and verify your Wi-Fi password in the app.
- Configuració de protecció: Carefully configure the over/under voltage and current limits to match your specific electrical system requirements to prevent nuisance tripping or inadequate protection.
- Monitorització energètica: Utilize the app's energy statistics to track daily, monthly, and yearly consumption. This can help identify energy usage patterns and potential savings.
10. Solució De Problemes
| Problema | Causa possible | Solució |
|---|---|---|
| Wi-Fi function not working / Device won't connect to app | Incorrect Wi-Fi credentials, 5GHz network, device not in pairing mode, weak signal. | Ensure your Wi-Fi is 2.4GHz. Verify Wi-Fi password. Put the device into pairing mode (refer to app instructions for specific steps). Check Wi-Fi signal strength near the device. |
| El dispositiu no s'encén | No power supply, incorrect wiring, internal fault. | Check main power supply. Verify wiring connections according to diagrams. If power is present and wiring is correct, contact support. |
| Incorrect energy readings | CT clamp installed incorrectly (reversed direction), faulty CT clamp, incorrect multiplier settings in app. | Check CT clamp direction (arrow should point towards load). Ensure CT clamps are securely closed. Verify voltage and current multiplier settings in the app. |
| Protection (e.g., over-voltage) not triggering | Protection function disabled, threshold set too high/low, no shunt trip release connected. | Enable the specific protection function in the app or via device buttons. Adjust the threshold to an appropriate value. Ensure a compatible shunt trip release is correctly wired if using protector features. |
| Device frequently trips/shuts off | Protection thresholds set too sensitively, actual load exceeding limits. | Review and adjust protection thresholds (e.g., over current, over voltage) to prevent nuisance tripping. Check actual load to ensure it's within the device's and CT's rated capacity. |
11. Manteniment
- Mantingueu el dispositiu net i lliure de pols i humitat.
- Comproveu periòdicament totes les connexions del cablejat per comprovar si estan ben ajustades i si hi ha signes de desgast o danys.
- Assegureu-vos que hi hagi una ventilació adequada al voltant del dispositiu per evitar el sobreescalfament.
- Revisa l'aplicació regularment per obtenir actualitzacions de firmware per garantir un rendiment i una seguretat òptims.
12. Garantia i Suport
This EARU energy meter comes with a 1-year warranty from the date of purchase. For technical support, warranty claims, or any questions not covered in this manual, please contact your retailer or the EARU Official Store directly. Please have your product model number (EASEM-G-TY-W) and purchase details ready when contacting support.
