1. Introduction
This manual provides detailed instructions for the installation, operation, and maintenance of the LOMEDRETME KWS-306WF Intelligent HD Color Screen 3-Phase 4-Wire Din-Rail Multifunction Voltage Current Power Meter. Please read this manual thoroughly before using the device to ensure safe and correct operation. Keep this manual for future reference.
2. Safety Information
Warning: Electrical installation and wiring should only be performed by qualified personnel. Failure to follow these instructions may result in electric shock, fire, or serious injury.
- Ensure the power supply is disconnected before installation or maintenance.
- Verify all wiring connections are secure and correct according to the wiring diagram.
- Do not operate the device in wet or damp conditions.
- Do not exceed the specified voltage and current ratings of the device.
- Keep the device away from flammable materials.
3. Package Contents
Please check the package contents upon receipt. If any items are missing or damaged, contact customer support.
- LOMEDRETME KWS-306WF Multifunction Power Meter (1 unit)
- User Manual (this document)
- Mounting accessories (if applicable, e.g., Din-Rail clips)
4. Product Overview
The KWS-306WF is a 3-phase 4-wire Din-Rail mounted multifunction meter designed for measuring voltage, current, power, and energy consumption. It features an HD color screen for clear data display and supports app control for remote monitoring and management.
Figure 1: Front view of the LOMEDRETME KWS-306WF Multifunction Power Meter. The image shows the device with its HD color screen displaying voltage, current, and power readings for three phases (A, B, C), along with total energy (kWh), frequency (Hz), and temperature (°C). Input terminals A, B, C, N are visible at the top, and output terminals A, B, C, L, N, NTC are at the bottom. Control buttons are on the right side of the screen.
Key Features:
- HD Color Screen for clear data display.
- Measures 3-Phase 4-Wire voltage, current, active power, reactive power, power factor, frequency, and total energy (kWh).
- Din-Rail mounting for easy installation in electrical panels.
- App control for remote monitoring and configuration (Tuya App compatible).
- Overload protection and alarm functions.
5. Installation and Setup
5.1 Din-Rail Mounting
- Ensure the main power supply is turned off before proceeding.
- Attach the KWS-306WF meter to a standard 35mm Din-Rail by aligning the clips and pressing firmly until it clicks into place.
- Verify the meter is securely mounted and does not wobble.
5.2 Wiring Diagram (3-Phase 4-Wire)
Refer to the diagram below for correct wiring. Incorrect wiring can damage the device or cause safety hazards.
- Connect Phase A, B, C, and Neutral (N) wires to the corresponding input terminals (A, B, C, N) at the top of the meter.
- Connect the load wires from the output terminals (A, B, C, L, N) at the bottom of the meter. The 'L' terminal is typically for a common load line or specific control output, depending on the model's exact functionality.
- Ensure all connections are tight and insulated.
- The NTC terminals are for an optional external temperature sensor.
Note: A detailed wiring diagram is usually printed on the side of the device or included in a separate sheet. Always consult that specific diagram for your unit.
5.3 App Connection (Tuya)
- Download the "Tuya Smart" or "Smart Life" app from your mobile device's app store.
- Register or log in to your account.
- Power on the KWS-306WF meter. The Wi-Fi indicator on the meter should blink, indicating pairing mode. If not, press and hold the Wi-Fi button (if available) or refer to the device's specific instructions to enter pairing mode.
- In the app, tap "+" to add a device. Select "Electrical" or "Energy Meter" and follow the on-screen instructions to connect the meter to your Wi-Fi network.
- Once connected, you can monitor and control the meter remotely via the app.
6. Operating Instructions
6.1 Display Navigation
The HD color screen displays various electrical parameters. Use the physical buttons on the side of the meter to navigate through different display screens and settings.
- Up/Down Buttons: Scroll through different measurement parameters (e.g., Voltage, Current, Power, Energy, Frequency, Temperature).
- "M" Button (Mode/Menu): Access the main menu or switch between display modes. Long press to enter settings.
- "ON/OFF" Button: May control specific outputs or reset certain parameters. Refer to the device's specific button functions.
6.2 App Control and Monitoring
Once connected to the Tuya Smart app, you can:
- View real-time voltage, current, and power readings for each phase.
- Monitor total energy consumption (kWh) over time.
- Set overload protection thresholds and receive alerts.
- Access historical data and generate reports.
- Configure other advanced settings as available in the app interface.
7. Maintenance
- Keep the device clean and free from dust. Use a soft, dry cloth for cleaning.
- Do not use abrasive cleaners or solvents.
- Periodically check wiring connections for tightness and signs of wear or damage.
- Ensure proper ventilation around the device to prevent overheating.
- No user-serviceable parts inside. Do not attempt to open or repair the device.
8. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Device does not power on. | No power supply; incorrect wiring. | Check main power supply. Verify wiring connections according to the diagram. |
| Readings are incorrect or erratic. | Incorrect wiring; loose connections; device malfunction. | Recheck all wiring. Ensure connections are tight. If problem persists, contact customer support. |
| Cannot connect to Wi-Fi/App. | Incorrect Wi-Fi password; meter not in pairing mode; router issues; 2.4GHz vs 5GHz Wi-Fi. | Ensure correct Wi-Fi password. Put meter into pairing mode. Restart router. Ensure your Wi-Fi is 2.4GHz. |
| Display is blank or frozen. | Power interruption; software issue. | Cycle power to the device. If problem persists, contact customer support. |
9. Specifications
| Parameter | Value |
|---|---|
| Model | KWS-306WF |
| Measurement Type | 3-Phase 4-Wire |
| Display | HD Color Screen |
| Mounting | Din-Rail (35mm) |
| Communication | Wi-Fi (Tuya App compatible) |
| Measured Parameters | Voltage, Current, Active Power, Reactive Power, Power Factor, Frequency, Total Energy (kWh), Temperature (with NTC sensor) |
| Operating Temperature | (Not specified) |
| Dimensions | (Not specified) |
Note: Specific voltage, current, and power ranges are not provided in the product data. Refer to the product packaging or official LOMEDRETME documentation for precise ratings.
10. Warranty and Support
LOMEDRETME is committed to providing high-quality products and customer satisfaction.
Warranty:
This product comes with a money-back guarantee, indicating a commitment to product quality. For specific warranty terms and duration, please refer to your purchase documentation or contact LOMEDRETME customer support directly.
Customer Support:
For technical assistance, troubleshooting, or any questions regarding your KWS-306WF meter, please contact LOMEDRETME customer support. Our knowledgeable team is available to assist you.
Contact information (e.g., email, website) is typically provided on the product packaging or official brand website.
