1. Introduction
The MatSee Plus Tuya Smart WiFi Energy Meter is designed to monitor electricity consumption and generation in real-time. Available in 1-channel and 2-channel versions, it supports bidirectional measurement, allowing you to track both forward and reverse energy flow. This device integrates with the Tuya Smart or Smart Life application, providing detailed statistics and automation capabilities for a smarter home energy management.
This manual provides essential information for the safe and effective installation, setup, and operation of your energy meter.
2. Technical Specifications
| Feature | Specification |
|---|---|
| Input Voltage | AC 100-240V 50/60Hz |
| Measuring Range | 0.2A-80A |
| Wireless Frequency | 2.4GHz (Not Support 5Ghz) |
| Measurement Error | Within ±2% |
| Module Size | 50*45*23mm |
| Clamp Diameter | 10mm |
| Clamp Cable Length | 1m |
| Working Temperature | -10 °C ~ +55 °C |
| Channels Available | 1 or 2 |
| Measure Direction | Bidirectional (Two Way) |
| Certification | CE, RoHS |
The device is designed for 35mm Din Rail Mounting.
3. Safety Information
3.1. Safety Installation
WARNING: Failure to follow these instructions may result in death or serious injury.
- The power clamp must be installed and serviced only by a qualified electrical personnel.
- Do not touch the terminals of the device during testing.
- Turn off all the power supply for this equipment before installing.
- Make sure that the power supply is off before connecting or disconnecting it to an auxiliary device.
- Always use a properly rated voltage sensing device to confirm power is off.
3.2. Safety Handling
WARNING: Failure to follow these safety notices could result in fire, electric shock, other injuries, or damage to the Power Clamp and other property. Read all the safety notices below before using the Power Clamp.
- Avoid high humidity or extreme temperatures.
- Avoid long exposure to direct sunlight or strong ultraviolet light.
- Do not drop or expose the unit to intense vibration.
- Do not disassemble or try to repair the unit on your own.
- Do not expose the unit or its accessories to flammable liquids, gases or other explosives.
3.3. Uninstalling the Clamp
WARNING: FOR SAFETY. If you need to remove the current transformer clamp, please be sure to turn off the power of the measuring device first, otherwise there is a risk of electric shock.
4. Setup Guide
4.1. Download the Application
To control and monitor your energy meter, you need to download the 'Smart Life' or 'Tuya Smart' application.
- Scan the QR code provided in the manual or search for 'Smart Life' or 'Tuya Smart' in your device's App Store (iOS) or Google Play Store (Android).
- Install the application on your smartphone or tablet.
4.2. Wiring Diagram
Proper wiring is crucial for accurate measurement and safe operation. Ensure the power supply is OFF before proceeding with any wiring.
Note: When installing, please ensure that the circuit measured by the Current Transformer (CT) is in the same phase as the circuit powering the module.
4.2.1. Measuring Energy Consumption and Generation (with Solar Panel)
4.2.2. Measuring Power Consumption (from Grid)
4.2.3. Non-Connect Installation of Current Clamp
The open and close CT is easy to install and safe to use. No need to change the wires; just put the wire into the clamp.
4.3. Add the WiFi Meter to App
After wiring, power on the device and follow these steps to add it to the app:
- Open the Smart Life or Tuya Smart app.
- Press the reset button on the meter for about 5 seconds until the red light flashes quickly.
- In the app, select 'Add Device' and choose the 'Smart meter (Wi-Fi)' option.
- Ensure your Wi-Fi network is 2.4GHz (5GHz is not supported). Enter your Wi-Fi password.
- The app will discover and add the device. Once added successfully, click 'Done'.
4.4. Add the ZigBee Meter to App
Please note: ZigBee meters need to be connected to a Tuya Gateway to function properly.
- Ensure your Tuya Gateway is set up and online in the app.
- Press the reset button on the ZigBee meter for about 5 seconds until the red light flashes quickly.
- In the app, navigate to your Wireless Zigbee Gateway and select 'Add subdevice'.
- The app will search for and add the ZigBee meter. Once added, click 'DONE'.
5. Operating Instructions
5.1. Monitoring Electricity Usage
Once the device is added, you can monitor various electricity parameters through the app:
- Real-time Data: View total power, power for Channel A and B separately (W), current (mA), voltage (V), power factor, and frequency (Hz).
- Electricity Statistics: Access hourly, daily, monthly, and yearly electricity consumption (KWh) for each channel in both forward and reverse directions.
5.2. Calibration
The energy meter allows for calibration to ensure accuracy. You can adjust the calibration percentage within the app.
5.3. Automation (Scene Creation)
The device supports automation, allowing it to work with other Tuya-compatible devices. You can create scenes based on measured electricity values.
For example, if power or current exceeds a set value, another Tuya device can be triggered to start working, or a notification can be sent.
5.4. Correct Clamp Direction for Solar Systems
When monitoring solar systems, the direction of the current clamp is critical for accurate 'Forward' and 'Reverse' energy readings.
- If your solar system is actively generating power, adjust the clamp's direction until the app shows 'Reverse' energy.
- If your solar system is not working (e.g., at night or off), adjust the clamp's direction until the app shows 'Forward' energy.
Perform this adjustment for each channel.
6. Maintenance
6.1. Clearing App Electricity Data
To clear the electricity data stored in the app for your device:
- Quickly press the reset button on the meter 5 times. The indicator LED should blink quickly. If it doesn't, repeat the action until it blinks quickly.
- Wait for 10 seconds.
- Go to the device's page in the Smart Life/Tuya Smart app.
- Click on 'Disconnect and wipe data'.
7. Troubleshooting
7.1. Common Issues and Solutions
- Q: After I configure it with the App, why does the App show '0' for Current and Power?
- A: This occurs if no current is detected. Ensure you have placed a device's wire (either live wire or neutral wire, but not both) inside the clamp, and that the device is turned ON. The clamp needs to sense current to display values.
- Q: I suppose P=U*I, why is the value shown on the App not correct?
- A: The calculation for real power (P) also considers the power factor (cos(Φ)). The formula is P = V * I * cos(Φ). Resistances do not produce a phase difference between voltage and current, so useful power is delivered directly. For accurate real power, the RMS voltage and current values are multiplied by the cosine of the phase angle.
- Q: After I change the report rate to less than 10 seconds, why does my App seem stuck?
- A: This is likely due to a slow network return. Please sign out of the App and re-enter. Then, change the report rate back to 10 seconds. This should resolve the issue.
8. User Tips
- For solar power users, remember to correctly orient the current clamps to differentiate between energy consumed from the grid ('Forward') and energy produced and fed back into the grid ('Reverse').
- If you experience issues with data reporting, try adjusting the reporting frequency in the app settings. A 10-second interval is generally stable.
- Consider using the automation features to create smart scenes, such as triggering an alert if power consumption exceeds a certain threshold, which can be useful for energy saving or safety.
- Always double-check your wiring connections and ensure the power is off before making any changes to prevent electrical hazards.
9. Warranty and Support
This product is covered by a standard manufacturer's warranty. For specific warranty terms and conditions, please refer to the product packaging or contact your retailer.
For technical support or any questions regarding your MatSee Plus Tuya Smart WiFi Energy Meter, please contact customer service:
- Email: sophie@matseeplus.com
- Online Message: Please leave a message online through your purchase platform.
We guarantee good quality, and every product is tested before delivery.
