DEWIN Intelligent WiFi Photovoltaic Meter User Manual

1. Introduction

Thank you for choosing the DEWIN Intelligent WiFi Photovoltaic Meter. This device is a 100A 3P 4W three-phase smart energy meter designed for accurate measurement and control of electrical energy in various applications, including photovoltaic systems. It features remote control capabilities via the Tuya Smart APP and comprehensive protection functions to ensure safety and reliability. Please read this manual thoroughly before installation and operation to ensure proper use and to prevent damage.

Figure 1.1: The DEWIN Intelligent WiFi Photovoltaic Meter is suitable for a wide range of applications, from solar energy systems to commercial and residential buildings.

2. Safety Information

WARNING: Electrical installation and maintenance 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 if it is damaged or malfunctioning.
• The device is designed for indoor use in environments within its specified operating temperature range (-5°C to +40°C).
• In case of power failure, the device screen will indicate a red warning, signaling a potential issue.

Figure 2.1: The meter's display turns red to indicate protection activation during a power failure, ensuring user awareness of potential issues.

3. Product Overview

The DEWIN Intelligent WiFi Photovoltaic Meter is a sophisticated device for monitoring and controlling electrical parameters. It integrates a clear LCD display, WiFi connectivity for remote management, and robust protection features.

Figure 3.1: The DEWIN Intelligent WiFi Photovoltaic Meter with its clear LCD display and control buttons.

Key Features:

• Remote Control: Manage your electrical appliances via the Tuya Smart APP on your smartphone, offering control regardless of location.
• High Accuracy LCD Display: Provides clear and precise data readings day and night.
• Overcurrent Delay Protection: Prevents frequent tripping due to momentary current surges, enhancing circuit stability.
• Bidirectional Photovoltaic Measurement: Accurately measures both generated and grid-fed electrical energy in solar systems.
• Multiple Protections: Includes undervoltage, overvoltage, overcurrent, undercurrent, three-phase voltage imbalance, and current imbalance protection.
• DIN Rail Installation: Designed for easy installation on a 35mm DIN rail without the need for screws.

Figure 3.2: Overview of the DEWIN Intelligent WiFi Photovoltaic Meter highlighting its smart features and protective capabilities.

Figure 3.3: The meter features a convenient rail design for universal DIN35mm standard rail installation, requiring no screws.

4. Setup

4.1 Package Contents

• 1 x DEWIN WiFi Power Switch (Intelligent WiFi Photovoltaic Meter)
• 1 x User Manual (English)

4.2 Installation

The DEWIN Intelligent WiFi Photovoltaic Meter is designed for 35mm DIN rail installation.

1. Ensure the main power supply is disconnected before beginning installation.
2. Mount the meter onto a standard 35mm DIN rail in your electrical distribution box. The screw-less design allows for simple and compact installation.
3. Refer to the wiring diagram below for correct electrical connections. Connect the input (ENTER) and output (OUTPUT) lines for L1, L2, L3, and N (Neutral) according to the labels on the device.
4. Double-check all connections for tightness and correctness before restoring power.

Figure 4.1: Wiring diagram for the DEWIN Intelligent WiFi Photovoltaic Meter. Ensure correct phase (L1, L2, L3) and neutral (N) connections for both input and output.

4.3 WiFi Connection

The device connects to your smartphone via the Tuya Smart APP using a 2.4 GHz WiFi frequency.

1. Download the "Tuya Smart" app from your smartphone's app store (iOS or Android).
2. Register or log in to your Tuya Smart account.
3. Power on the DEWIN Photovoltaic Meter. The WiFi indicator on the device should start blinking, indicating pairing mode. If not, refer to the device's specific instructions for entering pairing mode (usually by pressing and holding the WiFi button).
4. In the Tuya Smart app, tap "+" to add a new device. Select the appropriate device type (e.g., "Energy Meter" or "Circuit Breaker").
5. Follow the on-screen instructions in the app to connect the meter to your 2.4 GHz WiFi network.
6. Once connected, the WiFi indicator on the meter will become solid, and you can control and monitor the device via the app.

5. Operating

5.1 Local Operation (LCD Display)

The integrated LCD display provides real-time data. Use the navigation buttons (up, down, OK) on the device to cycle through various parameters such as voltage (U), current (I), power (P), energy consumption, and protection settings.

5.2 Remote Operation (Tuya Smart APP)

After successfully connecting the device to the Tuya Smart APP, you can perform the following operations:

• Real-time Monitoring: View current voltage, current, power, and energy consumption data from anywhere.
• Remote Control: Turn the power supply on or off remotely.
• Protection Settings: Adjust undervoltage, overvoltage, overcurrent, and other protection thresholds.
• Energy Statistics: Access historical energy consumption data and reports.
• Scheduling: Set schedules or timers for automatic power on/off.

6. Maintenance

The DEWIN Intelligent WiFi Photovoltaic Meter requires minimal maintenance.

• Cleaning: Use a soft, dry cloth to clean the device. Do not use abrasive cleaners or solvents.
• Firmware Updates: Periodically check the Tuya Smart APP for available firmware updates to ensure optimal performance and security.
• Connection Check: Regularly inspect wiring connections to ensure they remain secure.
• Environmental Conditions: Ensure the device operates within its specified temperature range (-5°C to +40°C) and avoid exposure to excessive moisture or direct sunlight.

Figure 6.1: The meter is designed to operate reliably across a wide temperature range, from -5°C to +40°C.

7. Troubleshooting

8. Specifications

Figure 8.1: Visual representation of the meter's dimensions and key technical specifications.

9. Warranty and Support

For warranty information and technical support, please refer to the documentation provided with your purchase or contact DEWIN customer service.

Manufacturer: DEWIN
Model Number: KDFCALAMQ-GS110258
ASIN: B0D422RKMV