1. Introduction
The TOMZN TOSVA-16LM is an advanced power strip designed to protect your electronic equipment from power fluctuations. It features adjustable over-voltage, under-voltage, and over-current protection, along with a power-on delay function. The device also provides real-time voltage and current display for monitoring.
This manual provides detailed instructions for the safe and efficient use of your TOSVA-16LM protector. Please read it thoroughly before operation.
2. Safety Information
- Ensure the device is connected to a power source within the specified voltage range (140-300VAC).
- Do not exceed the maximum loading power of 16A.
- Avoid exposing the device to moisture or extreme temperatures.
- Do not attempt to open or repair the device yourself. Refer to qualified personnel for service.
- Keep out of reach of children. The device features a 75N resistance for child safety.
- Always ensure the plug is fully inserted into the wall socket.
- The device is made of high-temperature flame-retardant PP material, rated for 750°C.
3. Product Features
- Over-voltage Protection: Automatically cuts off power when voltage exceeds a set limit.
- Under-voltage Protection: Automatically cuts off power when voltage drops below a set limit.
- Over-current Protection: Instantly blocks overloads (1-16A) in 0.1 seconds to prevent damage and fire risks.
- Automatic Recovery: Restores power automatically once voltage or current returns to normal levels after a set delay.
- Voltage Display: Real-time display of current voltage.
- Current Display: Real-time display of current consumption.
- Adjustable Parameters: User-configurable settings for protection values, recovery delays, and action times.
- Power-on Delay: Prevents immediate power supply to connected devices upon startup.
- One-Piece Plug Design: Comfortable to handle and CE certified.
- Durable Cable: HO5VV-F 3*1.5MM2 full copper cable with increased core thickness for better conductivity.
4. Specifications
| Parameter | Value |
|---|---|
| Model Number | TOSVA-16LM |
| Power Source | AC |
| Input Voltage | 140-300VAC 50/60Hz |
| Max. Loading Power | 1-16A Adjustable (Default: 16A) |
| Over-voltage Protection Value | 230-300V (Default: 270V) |
| Over-voltage Recovery Value | 225-295V (Default: 265V) |
| Over-voltage Protection Action Time | 0.1s-30s (Default: 0.5s) |
| Over-voltage Recovery Delay Time | 1s-500s (Default: 30s) |
| Under-voltage Protection Value | 140-210V (Default: 170V) |
| Under-voltage Recovery Value | 145-215V (Default: 175V) |
| Under-voltage Protection Action Time | 0.1s-30s (Default: 0.5s) |
| Under-voltage Recovery Delay Time | 1s-500s (Default: 30s) |
| Over-current Adjustment Range | 1-16A (Default: 16A) |
| Over-current Action Time | 0.1s-30s (Default: 1s) |
| Over-current Recovery Delay Time | 1s-500s (Default: 30s) |
| Power-on Delay Time | 1s-500s (Default: 10s) |
| Power Consumption | <2W |
| Electrical & Mechanical Life | ≥100,000 cycles |
| Cable Type | HO5VV-F 3*1.5MM2 FULL COPPER |
| Total Socket Length | 1.6m |
| Wire Length | 1.35m |
| Boundary Dimension | 278mm (L) x 56mm (W) x 42mm (H) |
| Certification | CE |
5. Setup
- Unpack: Carefully remove the TOSVA-16LM protector from its packaging.
- Inspect: Check the device and its cable for any signs of damage. Do not use if damaged.
- Placement: Place the power strip on a stable, dry surface, away from direct sunlight or heat sources.
- Connect to Power: Plug the EU plug of the TOSVA-16LM into a suitable wall socket. Ensure the wall socket provides power within the specified input voltage range (140-300VAC).
- Power-On Delay: Upon plugging in, the device will undergo a power-on delay (default 10 seconds) before supplying power to its outlets. The display will show the current status.
- Connect Devices: Plug your electronic devices into the AC outlets of the TOSVA-16LM. For models with USB/Type-C ports, connect compatible devices to these ports for charging.
6. Operating Instructions
The TOSVA-16LM features a digital display and control buttons for monitoring and adjusting protection parameters.
6.1. Panel Indicators and Keys
- Power Indicator (1): Illuminates when the device is powered on.
- Over Voltage Alarm Indicator (2): Flashes when over-voltage protection is active.
- Under Voltage Alarm Indicator (3): Flashes when under-voltage protection is active.
- Over Current Alarm Indicator (4): Flashes when over-current protection is active.
- Manual Switch (5): Toggles power on/off.
- Set Key (6): Long press for 3 seconds to enter the setting interface.
- Adjustment Key + (7): Increases parameter values during setting.
- Adjustment Key - (8): Decreases parameter values during setting.
6.2. Screen Display Description
The digital display shows different codes and values depending on the protection status:
- Over-voltage Protection: Display flashes "HU", then shows the actual voltage (e.g., "270").
- Under-voltage Protection: Display flashes "LU", then shows the actual voltage (e.g., "170").
- Over-current Protection: Display flashes "HA", then shows the actual current (e.g., "016"). The protector will reset automatically at the recovery time.
6.3. Parameter Settings
To adjust the protection parameters, follow these steps:
- Long press the SET key (6) for 3 seconds to enter the setting interface. The display will show parameter codes (A1, A2, etc.).
- Use the Adjustment Key + (7) and Adjustment Key - (8) to navigate through the parameters (A1-A15) and change their values.
- Parameter Definitions:
- A1: Power-on delay time (1-500s, Default 10s)
- A2: Over-voltage protection value (230-300V, Default 270V)
- A3: Over-voltage recovery value (225-295V, Default 265V)
- A4: Over-voltage recovery delay time (1-500s, Default 30s)
- A5: Over-voltage protection action time (0.1-30s, Default 0.5s)
- A6: Under-voltage protection value (140-210V, Default 170V)
- A7: Under-voltage recovery value (145-215V, Default 175V)
- A8: Under-voltage recovery delay time (1-500s, Default 30s)
- A9: Under-voltage protection action time (0.1-30s, Default 0.5s)
- A10: Over-current protection value (1-16A, Default 16A)
- A11: Over-current recovery delay time (1-500s, Default 30s)
- A12: Over-current protection action time (0.1-30s, Default 1s)
- A13: Voltage calibration (-9.5% to +9.5%)
- A14: Continuous Over Current Faults Times (1-20, Default Off)
- A15: Current calibration (-9.5% to +9.5%)
- Saving Settings: During the setting process, it is not necessary to press the SET key after each change. Long press the SET key (6) to save all changes and exit the setting interface.
- Special Conditions:
- If the over-voltage protection value is set to exceed 300V, the over-voltage protection function will be disabled.
- If the under-voltage protection value is set lower than 140V, the under-voltage protection function will be disabled.
6.4. Fault Inquiry and Factory Reset
- Fault Inquiry: Press the UP key (7) for more than 12 seconds to query the last fault recorded by the device.
- Restore Factory Settings: Press the DOWN key (8) for more than 12 seconds to restore all parameters to their default factory settings.
7. Maintenance
- Cleaning: Disconnect the device from the power source before cleaning. Use a soft, dry cloth to wipe the exterior. Do not use liquid cleaners or aerosols.
- Storage: If storing the device for an extended period, disconnect it from power and store it in a cool, dry place.
- Inspection: Periodically check the power cord and plug for any signs of wear or damage. Ensure all connections are secure.
- No User-Serviceable Parts: The internal components are not user-serviceable. Do not attempt to open the casing.
8. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Device does not power on. | No power from wall socket; device faulty. | Check wall socket with another appliance. Ensure plug is fully inserted. If still no power, contact support. |
| Display shows "HU" or "LU". | Over-voltage or under-voltage condition detected. | The device is protecting your equipment. Power will restore automatically when voltage stabilizes (after recovery delay). Check your mains voltage if this occurs frequently. |
| Display shows "HA". | Over-current condition detected. | Reduce the load on the power strip by unplugging some devices. Power will restore automatically when current stabilizes (after recovery delay). |
| Devices not receiving power after plugging in. | Power-on delay is active. | Wait for the set power-on delay time to elapse (default 10 seconds). |
| Cannot change settings. | Not in setting mode; incorrect button press. | Long press the SET key for 3 seconds to enter setting mode. Use UP/DOWN keys to adjust values. Long press SET again to save and exit. |
9. User Tips
- Secure Connections: Always ensure that the plug and all connected device plugs are firmly seated in their respective sockets to prevent intermittent contact issues.
- USB/Type-C Output: For models equipped with USB-A and Type-C ports, verify the power output specifications for these ports if you are connecting sensitive or high-power charging devices. (Note: Specific USB/Type-C output power details are not provided in the main product specifications, refer to product packaging or seller for exact values if critical).
- Parameter Customization: Take advantage of the adjustable parameters to fine-tune the protection levels according to your specific electrical environment and connected equipment requirements.
- Monitoring: Regularly check the voltage and current display to monitor your power consumption and identify potential issues before they trigger protection.
10. Warranty and Support
For warranty information, technical support, or service inquiries, please refer to the documentation provided with your purchase or contact the retailer/manufacturer directly. Keep your purchase receipt as proof of purchase.
