1. Introduction
The EPEVER MT50 Remote Meter is an accessory designed for monitoring and setting parameters of compatible EPEVER solar charge controllers. It provides a clear display of system operating data, fault information, and allows for convenient modification of controller settings. This manual provides detailed instructions for its installation, operation, and maintenance.
Image 1.1: EPEVER MT50 Remote Meter and its retail packaging, including mounting hardware and communication cable.
2. Compatibility
The MT50 Remote Meter is exclusively compatible with the following EPEVER solar charge controller series:
- Tracer-BN Series
- Tracer-AN Series
- Triron-N Series
- XTRA Series
- LS-B(P) Series
- VS-BN Series
- eTracer Series
- iTracer Series
- Tracer-BPL Series
Note: This remote meter is not compatible with solar charge controllers from other brands.
Image 2.1: Visual representation of the MT50's monitoring and setting capabilities, highlighting compatible EPEVER controller series.
3. Features
The EPEVER MT50 Remote Meter offers the following key features:
- Informative LCD Display: A large-screen LCD provides real-time operating data and system status.
- Real-time Alarm: Automatic display of failure information and alarms.
- Diversified Load Control Modes: Supports Manual Control, Light ON/OFF, Light ON + Timer, and Time Control.
- Battery Type Selection: Allows selection of Gel, Sealed, Flooded, and User-defined (programmable) battery types.
- Programmable Parameters: Enables users to customize various system parameters, including lithium battery settings.
- User-Friendly Interface: Simple and convenient operation via six navigation function keys.
- Power Saving: The backlight automatically turns off after 30 seconds of inactivity.
Image 3.1: Close-up view of the MT50's LCD display, showing solar panel, battery, and load status with voltage and current readings.
4. Package Contents
Verify that all items are present in the package:
- EPEVER MT50 Remote Meter Unit
- Communication Cable (RJ45)
- Mounting Screws and Wall Plugs
- Instruction Manual
Image 4.1: Contents of the MT50 package, including the remote meter, communication cable, mounting hardware, and manual.
5. Setup and Installation
Follow these steps to install and connect your MT50 Remote Meter:
- Choose a Location: Select a suitable location for the MT50 meter. Ensure it is easily accessible for viewing and operation, and away from direct sunlight or extreme temperatures.
- Mounting: Use the provided mounting screws and wall plugs to securely attach the MT50 to a wall or panel. The meter can be surface-mounted.
- Connect Communication Cable: Connect one end of the RJ45 communication cable to the RS485 communication and power interface on the rear of the MT50 meter.
- Connect to Controller: Connect the other end of the RJ45 communication cable to the corresponding communication port on your compatible EPEVER solar charge controller.
- Power On: Once connected, the MT50 will power on automatically, drawing power from the solar charge controller.
Image 5.1: Diagram illustrating the connection of the MT50 Remote Meter to an EPEVER solar charge controller, solar panel, battery, and load.
Image 5.2: Front view of the MT50 showing the display, buttons, and indicators, alongside a rear view highlighting the RS485 communication and power interface.
6. Operating Instructions
The MT50 features a clear LCD display and six navigation buttons for easy operation.
6.1. Display Overview
The LCD screen displays various system parameters, including solar panel voltage/current, battery voltage/current, and load voltage/current. It also shows system status icons and warning indicators.
- Warning Indicator: Illuminates to indicate system warnings or faults.
- COM Indicator: Indicates communication status with the solar charge controller.
- Display Screen: Shows real-time data and menu options.
- Buttons: Used for navigation and parameter setting (Esc, Up, Down, Left, Right, OK).
6.2. Navigation and Parameter Setting
Use the navigation buttons to browse through different screens and menus. The 'OK' button is used to enter a menu or confirm a selection, while 'Esc' is used to exit a menu or cancel an operation.
- Press the Up or Down buttons to scroll through different display screens (e.g., PV information, Battery information, Load information).
- To enter the parameter setting menu, press the OK button from the main display.
- Navigate through the menu options using the Up and Down buttons.
- Press OK to select an option or enter a sub-menu.
- Use the Left and Right buttons to adjust values.
- Press OK to save changes.
- Press Esc to return to the previous menu or exit the setting mode.
7. Battery Parameter Configuration
The MT50 allows for detailed configuration of battery parameters, especially for user-defined battery types.
7.1. Setting Battery Type
To set the battery type and other related parameters:
- From the main display, press OK to enter the menu.
- Navigate to "Control Para" (Control Parameters) and press OK.
- Find "Batt. Type" (Battery Type) and press OK.
- Use the Up or Down buttons to select the desired battery type (e.g., Sealed, Gel, Flooded, User, LiFePO4).
- Press OK to save the selection.
- If "User" or a specific Lithium battery type is selected, further parameters can be adjusted.
Image 7.1: MT50 screen displaying battery type selection, with steps on how to set battery parameters.
7.2. Detailed Battery Parameters (User Type)
When "User" battery type is selected, you can customize various voltage and charging parameters. Refer to the table below for typical values and adjustable ranges. Always consult your battery manufacturer's specifications before making adjustments.
Image 7.2: Table detailing various battery parameters for different battery types, including voltage thresholds and charging durations.
Important: Incorrect battery parameter settings can damage your battery or solar system. Exercise caution when modifying these values.
8. Maintenance
The EPEVER MT50 Remote Meter requires minimal maintenance to ensure optimal performance.
- Cleaning: Periodically wipe the display and casing with a soft, dry cloth. Avoid using abrasive cleaners or solvents.
- Connections: Ensure the RJ45 communication cable remains securely connected to both the MT50 and the solar charge controller.
- Environment: Keep the meter in a clean, dry environment, away from excessive dust, moisture, and direct sunlight.
9. Troubleshooting
Refer to the following common issues and their solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Meter display is blank. | No power from controller; communication cable loose or faulty. | Check if the solar charge controller is powered on. Ensure the RJ45 cable is securely connected at both ends. Replace cable if damaged. |
| "Warning" indicator is on. | System fault detected by the solar charge controller. | Check the specific error message on the MT50 display or the solar charge controller. Refer to your controller's manual for fault codes. |
| Cannot change parameters. | Incorrect menu access; controller is in a locked state. | Ensure you are in the correct parameter setting menu. Some controllers may require specific conditions to allow parameter changes. |
| Inaccurate readings. | Loose connections; sensor issue on controller. | Verify all connections are tight. If the issue persists, consult the solar charge controller's manual or EPEVER support. |
10. Specifications
Technical specifications for the EPEVER MT50 Remote Meter:
- Display Type: LCD
- Nominal Voltage: 12V (powered by controller)
- Item Weight: 0.19 Kilograms (6.7 ounces)
- Product Dimensions: 3.86"L x 3.86"W x 4.49"H (9.8 cm L x 9.8 cm W x 11.4 cm H)
- Operating Temperature: -20°C to +70°C (-4°F to +158°F)
- Material: Plastic
- Communication Interface: RS485 (RJ45)
Image 10.1: Diagram showing the physical dimensions of the EPEVER MT50 Remote Meter.
11. Warranty and Support
For warranty information and technical support, please refer to the documentation provided with your EPEVER solar charge controller or visit the official EPEVER website. EPEVER provides professional after-sales support.
