1. Introduction
This manual provides comprehensive instructions for the installation, operation, and maintenance of the EASEM-E Smart WIFI Three-Phase Four-Wire Energy Meter. This device is designed for accurate bidirectional measurement of electrical energy in AC90-480V systems, making it ideal for monitoring solar energy and photovoltaic installations. It integrates WIFI connectivity for remote monitoring and control via a mobile application, and includes a built-in relay for enhanced functionality.
2. Key Features
- Three-Phase Four-Wire Measurement: Designed for robust industrial and commercial applications.
- Wide Voltage Range: Supports AC90-480V input for versatile deployment.
- Bidirectional Energy Measurement: Accurately measures both consumption and generation, essential for solar and photovoltaic systems.
- WIFI Connectivity (2.4G Only): Enables remote monitoring and control.
- Integrated Relay: Allows for remote switching or load control.
- Real-time Data Monitoring: View voltage, current, active power, frequency, and power factor via a mobile application.
- Historical Data Logging: Track energy consumption and generation trends over time.
- DIN Rail Mounting: Easy installation in standard electrical panels.
- Compact Design: Space-saving form factor.
3. Specifications
| Parameter | Value |
|---|---|
| Model | EASEM-E-R-1W |
| Input Voltage (L+N) | 90-250VAC, 50/60Hz |
| Input Voltage (Three Phase) | 90-480VAC, 50/60Hz |
| Max Load (Relay) | 16A dry contact |
| WIFI Connection | 2.4G Only |
| Mounting | 35mm DIN Rail |
| Dimensions (H x W x D) | 91mm x 36mm x 66mm (approx.) |
| Current Transformer (CT) Bore Sizes | 80A: Φ10.2mm, 120A: Φ16mm, 200A: Φ20mm, 300A: Φ24.8mm |
4. Package Contents
The package typically includes:
- 1 x EASEM-E Smart WIFI Three-Phase Energy Meter
- 3 x Current Transformers (CTs) (Amperage depends on selected model variant: 80A, 120A, 200A, or 300A)
- 1 x User Manual (this document)
5. Safety Information
WARNING: Installation and servicing should only be performed by qualified personnel. Failure to follow these instructions may result in electric shock, fire, or serious injury.
- Always disconnect power before installing or servicing the device.
- Ensure all wiring connections are secure and comply with local electrical codes.
- Do not operate the device in wet or damp conditions.
- Verify the voltage and current ratings of your electrical system match the device specifications.
- Keep the device away from flammable materials.
6. Installation
6.1. Mounting the Meter
The EASEM-E meter is designed for 35mm DIN rail mounting.
- Ensure power to the electrical panel is completely disconnected.
- Locate a suitable position on a standard 35mm DIN rail within your electrical panel.
- Hook the top edge of the meter onto the DIN rail.
- Push the bottom of the meter firmly until it clicks into place on the rail.
6.2. Wiring Connections
Refer to the wiring diagrams below for correct connection. Incorrect wiring can damage the device or your electrical system.
- Voltage Inputs: Connect the L (Live) and N (Neutral) wires for the meter's power supply, and VA, VB, VC for the three-phase voltage measurement. Ensure correct phase sequence.
- Current Transformer (CT) Connections:
- Pass the respective phase wire (Phase A, Phase B, Phase C) through the center of its corresponding CT.
- Connect the CT output wires (IA+, IA-, IB+, IB-, IC+, IC-) to the designated terminals on the meter. Ensure polarity is correct (IA+ to IA+, IA- to IA-, etc.). Incorrect CT polarity will result in inaccurate bidirectional measurements.
- Relay Connections: If using the built-in relay, connect the load control wires to the dry contact terminals as per your application requirements.
7. Wiring Diagrams
The following diagrams illustrate typical wiring configurations for the EASEM-E Smart WIFI Three-Phase Energy Meter.
8. Operation
8.1. Initial Power-Up
- After completing all wiring, restore power to the electrical panel.
- The indicator light on the meter should illuminate, indicating power.
- The meter will automatically begin measuring electrical parameters.
8.2. WIFI Connection and App Setup
To utilize the smart features, download the compatible mobile application (e.g., Tuya Smart or Smart Life, commonly used for such devices) from your app store.
- Ensure your smartphone is connected to a 2.4GHz WIFI network.
- Open the mobile application and register/log in.
- Follow the in-app instructions to add a new device. This typically involves putting the meter into pairing mode (often by pressing and holding the reset button until the indicator light flashes rapidly).
- Once connected, you can view real-time data and control the relay.
8.3. Relay Control
The built-in relay can be controlled via the mobile application. Consult the app's specific instructions for setting up schedules, automation, or manual control of the relay output.
9. Maintenance
- Cleaning: Periodically wipe the device with a dry, soft cloth. Do not use abrasive cleaners or solvents.
- Connection Check: Annually, or as needed, ensure all wiring connections are tight and free from corrosion. Disconnect power before checking connections.
- Firmware Updates: Check the mobile application regularly for any available firmware updates for the device to ensure optimal performance and security.
10. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Device not powering on | No power supply; incorrect wiring; faulty device | Check circuit breaker. Verify L and N connections. Contact support if power is present and wiring is correct. |
| Cannot connect to WIFI | Incorrect WIFI password; 5GHz network; device too far from router; pairing mode not activated | Ensure 2.4GHz WIFI. Re-enter password. Move device closer to router. Activate pairing mode (refer to app instructions). |
| Inaccurate readings | Incorrect CT wiring polarity; loose CT connections; incorrect CT type selected in app (if applicable) | Verify CT polarity (IA+ to IA+, etc.). Ensure CTs are securely connected. Check app settings for CT configuration. |
| Relay not responding | Incorrect relay wiring; app control issue; relay fault | Check relay wiring. Ensure app command is sent correctly. Contact support if wiring and app control are verified. |
11. User Tips
- For optimal WIFI signal, ensure the meter is not enclosed in a metal box that could block the signal.
- Regularly check the mobile app for new features or performance improvements.
- When installing CTs, ensure the arrow on the CT (if present) points in the direction of current flow towards the load for consumption measurement, or away from the load for generation measurement in bidirectional setups.
12. Warranty and Support
For warranty information, technical support, or service inquiries, please contact the seller or manufacturer directly. Keep your purchase receipt as proof of purchase.
