EPEVER B076Z4DZ44
EPEVER MT52 Remote Control Unit User Manual
Model: MT52
1. Product Overview
The EPEVER MT52 is a remote control unit designed for monitoring and adjusting parameters of EPEVER solar charge controllers. It features a large LCD screen that displays all operating data and the system's operating status, providing visual control over charging parameters during operation.

Figure 1.1: Front view of the EPEVER MT52 Remote Control Unit, showing the LCD display and control buttons.
Key Features:
- Automatic recognition and display of the type, model, and relevant parameters of the connected device.
- Real-time data monitoring.
- Remote load switching of the connected device.
- Ability to search and modify device parameters, charge control parameters, and load control parameters.
- Large LCD screen for comprehensive system status display.
2. Package Contents
Upon opening the package, please verify that all components are present and undamaged.

Figure 2.1: The MT52 unit along with its included accessories, such as the connection cable and mounting hardware.
Included Components:
- EPEVER MT52 Remote Control Unit
- 2-meter cable with RS485 bus system (RJ45 connector)
- Mounting screws and caps
3. Installation and Setup
Follow these steps for proper installation of your MT52 remote control unit.
3.1 Physical Installation
- Choose a suitable location for mounting the MT52 unit. Ensure it is easily accessible for viewing and operation.
- Use the provided screws to securely mount the unit to a flat surface.

Figure 3.1: Side view of the MT52 unit illustrating its dimensions (11.4 cm x 11.4 cm x 32.7 mm) and weight (0.19 kg).
3.2 Electrical Connection
The MT52 connects to your EPEVER solar charge controller via an RJ45 cable.
- Locate the RJ45 port on the back of the MT52 unit.
- Connect one end of the provided 2-meter RJ45 cable to this port.
- Connect the other end of the RJ45 cable to the designated communication port (usually labeled 'RS485' or 'COM') on your compatible EPEVER solar charge controller.

Figure 3.2: Rear view of the MT52 unit, highlighting the RJ45 communication port for connecting to the solar charge controller.
3.3 System Integration Diagram
The MT52 integrates into your solar power system as a monitoring and control interface for the charge controller.

Figure 3.3: A schematic diagram illustrating the connection of the MT52 remote meter to a solar charge controller, which is connected to solar panels and a battery bank.

Figure 3.4: An accessory connection diagram showing how the MT52 (labeled MT50 in the diagram, but functionally similar) connects to an EPEVER charge controller, alongside other optional accessories like Wi-Fi modules, Bluetooth modules, and USB adapters for PC connection.
4. Operating Instructions
The MT52 provides an intuitive interface for monitoring and controlling your solar charge controller.
4.1 Display Navigation
The large LCD screen displays various system parameters. Use the navigation buttons (Esc, Up, Down, OK) to browse through different screens and menus.
- Esc: Used to exit a menu or return to the previous screen.
- Up/Down Arrows: Used to navigate through menu options or adjust parameter values.
- OK: Used to confirm a selection or enter a menu.
4.2 Real-time Data Monitoring
The MT52 automatically recognizes and displays real-time data from the connected charge controller, including:
- Solar panel voltage and current
- Battery voltage and charging current
- Load voltage and current
- System operating status (e.g., charging, discharging, fault)
4.3 Parameter Adjustment
The MT52 allows for remote modification of various parameters on the connected charge controller. These may include:
- Battery type selection (gel, lead-acid, user-defined)
- Charge control parameters (e.g., float charge voltage, boost charge voltage)
- Load control parameters (e.g., load working mode, timer settings)
Refer to your specific EPEVER charge controller's manual for detailed information on adjustable parameters and their recommended values.
5. Maintenance
The EPEVER MT52 is designed for low maintenance. Regular care will ensure its longevity and optimal performance.
- Cleaning: Use a soft, dry cloth to clean the display and casing. Avoid using abrasive cleaners or solvents.
- Connections: Periodically check the RJ45 cable connection to ensure it is secure and free from damage.
- Environment: Ensure the unit is operated within its specified temperature range (-20 ℃ to +70 ℃) and protected from excessive moisture or direct sunlight.
6. Troubleshooting
If you encounter issues with your MT52 unit, refer to the following common problems and solutions.
| Problem | Possible Cause | Solution |
|---|---|---|
| Display is blank or not turning on. | No power from charge controller; Loose cable connection; Incompatible charge controller. | Check the connection cable (RJ45) between the MT52 and the charge controller. Ensure the charge controller is powered on. Verify compatibility with your specific EPEVER charge controller model. |
| Incorrect data displayed. | Communication error; Incorrect settings on charge controller. | Reconnect the RJ45 cable. Ensure the MT52 is connected to the correct communication port. Check the settings on your charge controller using the MT52 or other means. |
| Cannot modify parameters. | Read-only mode; Firmware issue; Incompatible controller. | Ensure you are in the correct menu for parameter modification. Some parameters might be read-only depending on the controller model or system status. Verify controller compatibility. |
| Screen appears scratched or damaged upon unboxing. | Manufacturing defect or shipping damage. | Inspect the unit carefully upon receipt. If damage is present, contact customer support immediately for assistance with replacement or return. |
7. Specifications
Technical specifications for the EPEVER MT52 Remote Control Unit.
| Feature | Specification |
|---|---|
| Model Number | MT52 |
| Display Type | LCD |
| Self-consumption (Backlight ON) | <23mA |
| Self-consumption (Backlight OFF) | <15mA |
| Connector Type | RJ45 |
| Operating Temperature | -20 ℃ to +70 ℃ |
| Dimensions (L x W x H) | 114 x 114 x 32.7 mm |
| Net Weight | 0.19 kg |
| Included Components | 2m cable with RS485 bus system |
| Compatibility | PWM charge controllers (LS-B, LS-BP, VS-BN); MPPT charge controllers (Tracer-A, Tracer-AN, Tracer-BN, eTracer, iTracer) |
8. Warranty and Support
8.1 Warranty Information
The EPEVER MT52 Remote Control Unit comes with a one-year manufacturer's warranty from the date of purchase. This warranty covers defects in materials and workmanship under normal use. Please retain your proof of purchase for warranty claims.
The product holds CE Certificates, ensuring compliance with European safety, health, and environmental protection requirements.
8.2 Customer Support
For technical assistance, troubleshooting beyond this manual, or warranty inquiries, please contact EPEVER customer support through their official website or the retailer from whom you purchased the product. Provide your product model number (MT52) and a detailed description of the issue when contacting support.
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