Important Safety Instructions
Warning: Please read and follow all safety instructions carefully.
Before installing and operating this product, please read the manual thoroughly and keep it in a safe place for future reference.
The following individuals are not allowed to install or operate this product without strict guidance and supervision:
- Anyone lacking the relevant knowledge, experience, or capability to safely install and/or use the product.
- Anyone with physical, sensory, or cognitive impairments/limitations (including children) that may affect safe installation and/or operation.
Upon receiving the product, please check for any damage that may have occurred during transportation. If any issues are found, contact PowMr or the shipping company immediately.
Before installation, please read all instructions and precautions in the manual to ensure proper operation of the product.
Install the product in an environment that avoids direct sunlight, rain, moisture, corrosion, dust, and strong electromagnetic interference. Keep it away from any flammable liquids or gases. The controller is for indoor use only.
Do not allow water to enter the product. ❌
Do not open the product casing for self-repair. ❌
1 Product Overview
POW-Meter is a remote control device designed for the POW-M series solar controllers, aimed at meeting the demand for remote data integration, monitoring, and control. The integration of the POW-Meter breaks the spatial limitations of device data monitoring, enhancing user experience with more convenient and seamless usage.
The POW-Meter remote control device integrates data and status from the photovoltaic side, battery side, load side, and the controller itself. Users can view relevant information or modify settings through a remote dashboard, offering a more convenient, flexible, and simple solution for remote solar system monitoring, and meeting the diverse spatial layout needs of photovoltaic systems.
1.1 System Diagram
A diagram illustrates the POW-Meter remote control device integrated into a photovoltaic system. It shows PV arrays connected to a solar charge controller, which is linked to a battery pack and an inverter. The inverter connects to an AC load. A DC load is also shown. The POW-Meter remote control screen is depicted, connected to the system.
1.2 Features
- Flexible compatibility with POW-M series controllers.
- LCD color screen design, displaying real-time parameters for photovoltaic, battery, and AC/DC load.
- Touch interface with responsive control, easy-to-clean integrated panel.
- Supports quick configuration of charging parameters by selecting battery types or allows custom battery charging parameters.
- Automatically generates and displays daily, monthly, and yearly charging power or energy generation data charts.
- Fault code display for real-time system status monitoring, providing accurate error feedback.
- Adjustable display brightness.
- Supports quick reset of the controller.
- Magnetic back panel for easy and flexible installation.
- Suitable for parallel systems, it can significantly enhance operational convenience and efficiency through centralized management via the remote control screen.
5 LCD Screen Display Instructions
5.1 Main Screen
After the device is connected to the controller, it will automatically start and display the startup screen showing the corresponding version number information.
After the startup screen ends, it will enter the main page. You can switch between two main screens using the up or down button.
Main Screen Page 1
- PV Volt.: Photovoltaic input voltage
- Bat Volt.: Battery voltage
- ChgCurr.: Charging current
- ChgPower: Charging power
- ChgToday: Today's charging capacity
- ChgMonth: Charging capacity of the month
Main Screen Page 2
- Dev. Temp: Device temperature
- State: Operating mode and fault code
- Batt.: Battery type and system voltage
- Load Curr: Load side output current
- LoadPower: Load side output power
- LoadToday: Load side daily consumption
Note: ?
- For operating mode codes, refer to section 6.1; for fault codes, refer to section 6.2.
- "Load Curr", "Load Power", and "Load Today" will only be displayed when the connected controller supports DC output.
5.2 Settings Menu Page
Note: ?
- After connecting the remote control screen, all settings operations of the controller must be done through the remote control screen. Any program changes made on the controller's operation panel will be overridden by the remote control screen.
1. On the main screen, press the ENT key to enter the settings menu page.
2. The menu page will sequentially display the following options: Battery Type, Charging Parameters, Reset MPPT, Load Control (only applicable for models that support DC output), Data Chart, Device Setup, and Parallel Communication Code Settings (only applicable for models that support parallel operation).
The menu page for each model will display a combination of Page 1 and Page 2.
| Controller Model | Menu Page 1 | Menu Page 2 |
|---|
| POW-M25-PRO; POW-M35-PRO; POW-M45-PRO | 1-A | 2-A |
| POW-M60-PRO; POW-M60-MAX | 1-A | 2-A |
| POW-RV1225A; POW-RV1235A; POW-RV1245A | 1-A | 2-A |
| POW-M60-ULTRA | 1-A | 2-B |
| POW-M80-PRO; POW-M100-PRO | 1-B | 2-B |
Settings Menu Page 1-A (Parameter Set: Date, *Batt. Type, *Chg Parameter, *Restore MPPT, *Load Control)
Settings Menu Page 1-B (Parameter Set: Date, *Batt. Type, *Chg Parameter, *Restore MPPT)
Settings Menu Page 2-A (Parameter Set: Date, *Data Chart, *Device Setup)
Settings Menu Page 2-B (Parameter Set: Date, *Data Chart, *Device Setup, *Set the addr.)
5.2.1 Battery Type
Note: ?
Due to differences in the voltage ranges supported by different controller models, the available battery types and system voltages vary between models. The available options are detailed in the controller manual.
Step 1. Select a preset battery type or choose the user-defined mode. If you choose the USE mode, you will be allowed to manually modify the "Chg Parameter" (Charging Parameters) in menu item.
Screen Example: Set Battery Type (Bat. Type: SEL, Bat. System: S12V)
Screen Example: Choose User-defined (Bat. Type: USE, Bat. System: S12V)
Step 2. Set the battery system voltage. If the "USE" option is selected for the battery type, you will need to manually set the system voltage. If a preset battery type is selected, the system will automatically detect the system voltage, and no manual setting is required.
Screen Example: Set System Voltage (Bat. Type: USE, Bat. System: S12V)
5.2.2 Charging Parameters
Charging parameters can only be edited when the battery type is selected as USE.
| Item | Value (Example) | Description |
|---|
| Fast CHG: | 14.4V | Fast Charging Voltage |
| FloatCHG: | 13.8V | Float Charging Voltage |
| Rec. Vol: | 12.6V | Low Voltage Recovery Voltage |
| Low Vol: | 11.0V | Low Voltage Cutoff Voltage |
| Mppt Vol: | 13.2V | Maximum Power Point Tracking Voltage |
| MaxChgCur: | 60.0A | Maximum Charging Current |
(Taking POW-M60-ULTRA as an example)
Note: ?
- All battery charging voltage parameters displayed on the device are for a 12V system voltage. For a 24V system, multiply the value by 2. If the system voltage is 24V with a lead-acid battery or a custom battery type, the actual charging voltage will be the displayed value multiplied by 2.
- The maximum charging current setting can only be effectively changed when the controller is connected to the following models.
Models of controllers that support custom maximum charging current: POW-M60-ULTRA
5.2.2.1 Preset Charging Parameters for Each Battery Type
1. For Lead-Acid Batteries and User-defined Batteries:
| Battery type | FLd | GEL | SEL | USE |
|---|
| Parameters | | | | |
| Boost Charging Voltage | 14.6V | 14.2V | 14.4V | 9.0~17.0V |
| Float Charging Voltage | 13.8V | 13.8V | 13.8V | 9.0~17.0V |
| Low Voltage Cutoff Voltage | 11.0V | 11.0V | 11.0V | 9.0~17.0V |
| Low Voltage Recovery Voltage | 12.6V | 12.6V | 12.6V | 9.0~17.0V |
2. For Lithium Iron Phosphate (LiFePO4) Batteries:
| Battery type | L04 | L08 | L16 |
|---|
| Parameters | | | |
| Boost Charging Voltage | 14.5V | 29.0V | 58.0V |
| Float Charging Voltage | 13.8V | 27.6V | 55.2V |
| Low Voltage Cutoff Voltage | 11.2V | 22.4V | 44.8V |
| Low Voltage Recovery Voltage | 12.0V | 24.0V | 48.0V |
Note: ?
- The charging parameters for lead-acid batteries and custom batteries in the table above are for a 12V system voltage. For a 24V system, multiply the values by 2. If a 24V lead-acid battery or custom battery type is connected, the actual charging voltage will be the displayed voltage value multiplied by 2.
5.2.3 Reset MPPT
After entering the Reset MPPT page, press the ENT key to restore the charging parameters to the factory settings.
Screen Example: For MPPT Factory Reset! Change Parameter to Factory settings [ENT] To Save
5.2.4 Load Control Mode
The load control mode settings are only applicable to models that support DC output with load.
Time-Light Control Mode
Screen Example: Load: PV-Control 00 H [ENT] To Save
Normally Off Mode
Screen Example: Load: OFF-Mode The Load is OFF! [ENT] To Save
PV+Time Mode
Screen Example: Load: PV+Time Load ON: 24H [ENT] To Save
TimeControl Mode
Screen Example: Load: TimeControl Load ON: 10:00 Load OFF: 15:30 [ENT] To Save
| Mode | Description |
|---|
| PV+Time | Time-Light Control Mode: The set duration refers to the time after sunset when the load will be activated. If set to 24H, it will be in the normally on mode. |
| OFF-Mode | Normally Off Mode. |
| Time-Control | Time Control Mode: The load is activated and deactivated according to the set on/off times. |
| PV-Control | Light Control Mode: The load is activated after sunset and stopped after sunrise. |
5.2.5 Data Chart
Daily Charging Power
View the photovoltaic power generation data for the day, with a maximum of 15 hours of data displayed, recorded every 6 minutes. The real-time data for the day is cleared at midnight and converted into cumulative data.
Screen Example: Data Chart options (Today CHG Power, DailyPage Energy, Monthly Energy, Clear CHG Data) leading to a bar chart showing Max Power: 1156.1 W.
Daily Power Generation
View the daily power generation data for the current month, with a maximum of 31 days of data displayed. Data is cleared at the end of the month and converted into cumulative data.
Screen Example: Data Chart options leading to a bar chart showing Max Power: 6.2kWh.
Monthly Power Generation
View the power generation data for the past 12 months. New data will overwrite old data, and the display will always show the most recent 12 months of data.
Screen Example: Data Chart options leading to a bar chart showing Max Power: 583.7kWh.
Clear Data
Screen Example: Data Chart options leading to Clear All Chg data (Today data, Month data, Year data) [ENT] To Save.
5.2.6 Device Setup
Used to configure the remote control screen device.
Time Setting
Set the local time displayed on the remote control screen.
Screen Example: Device Setup menu with options Time Setting, Set CHG Time, Set brightness. Selecting Time Setting leads to a screen showing Time: 15:29, Date: 2025/01/16, (Year: 2000-2099) [ENT] To Save.
Set CHG Time
Set the time for recording and reading charging data. (Charging data outside this period will not be displayed in the "Data Chart")
Screen Example: Device Setup menu leading to SetChgTime screen showing From: 05:00 To: 20:00 Max Count Time 15H [ENT] To Save.
Set brightness
Screen Example: Device Setup menu leading to Adjust brightness screen showing Idle: 10%, Operate: 35% (5%-50% <20%-95%) [ENT] To Save.
5.2.7 Parallel Communication Code Settings
Note: ?
- Only applicable to models that support parallel operation.
- It only applies to the connected controller.
- If parallel operation is not used, this program does not need to be configured.
The parallel communication code is used to define the master and slave units. The controller with the smallest communication code value is the master. During parallel operation, if the master unit malfunctions, the system will automatically select the controller with the next communication code as the new master. For example, if the master unit with communication code 01 fails, the system will define the unit with communication code 02 as the new master.
Screen Example: Menu Page 2 (Parameter Set, Data Chart, Device Setup, Set the addr.) leading to Parallel Communication screen showing Set the addr. of MPPT as: 00 (Max is 12) [ENT] To Save.
