TOMZN TOSVA-16 Automatic Voltage Current Protector

1. Introduction

The TOMZN TOSVA-16 is an automatic voltage and current protector designed to safeguard your electrical appliances from various power fluctuations. It provides protection against over-voltage, under-voltage, and over-current conditions, featuring automatic recovery once normal power is restored. This device also includes voltage and current measurement displays, adjustable calibration, and fault inquiry functions.

2. Safety Information

Please read and understand all safety instructions before using this product. Failure to follow these instructions may result in electric shock, fire, or serious injury.

• Ensure the device is correctly plugged into a compatible wall socket.
• Do not overload the protector beyond its maximum rated current (16A).
• Keep out of reach of children. The safety protection door is designed to prevent accidental insertion of fingers or small objects.
• The device is constructed with PC flame retardant material for enhanced safety.
• Do not disassemble or modify the device. Refer all servicing to qualified personnel.
• Avoid using the device in wet or damp environments.

3. Product Overview

The TOMZN TOSVA-16 is a compact plug-in device featuring a clear LED display and intuitive control buttons. It is designed for use with EU plug sockets.

Key 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: Automatically cuts off power when current exceeds a set limit.
• Automatic Recovery: Restores power automatically after a set delay once voltage/current returns to normal.
• Voltage Display: Real-time display of input voltage.
• Current Display: Real-time display of current draw.
• Adjustable Parameters: User-configurable protection values and delay times.
• Fault Inquiry: Ability to check the last fault recorded.

Components:

• LED Display: Two digital displays show voltage (top) and current (bottom).
• Power Button: Turns the device on/off and can manually switch off protection.
• SET Button: Enters and exits the parameter setting mode.
• Up/Down Buttons: Adjust parameter values during setting.
• EU Plug: For connecting to a wall socket.
• EU Socket: For connecting your appliance.

4. Specifications

5. Setup Instructions

Setting up your TOMZN TOSVA-16 protector is straightforward:

1. Plug In: Insert the TOSVA-16 protector into a standard EU wall socket.
2. Connect Appliance: Plug your electrical appliance into the socket on the front of the TOSVA-16 protector.
3. Power On: Press the power button on the protector to turn it on. The LED display will illuminate, showing the current voltage and current.

6. Operating Instructions

Basic Operation:

• Power On/Off: Press the power button (circular button with power symbol) to turn the device on or off.
• Display: The top LED displays voltage (V), and the bottom LED displays current (A).
• Protection Status: The 'POWER' indicator light shows the operational status.

Setting Parameters:

The TOSVA-16 allows you to customize various protection parameters. Follow these steps to enter and adjust settings:

1. Enter Setting Mode: Long press the 'SET' button for more than 3 seconds. The display will show 'A1'.
2. Navigate Parameters: Use the 'UP' and 'DOWN' arrow buttons to cycle through the parameters (A1 to A15).
3. Adjust Value: When the desired parameter (e.g., A1) is displayed, press the 'SET' button briefly. The value will start flashing. Use the 'UP' and 'DOWN' arrow buttons to adjust the value.
4. Confirm Value: Press the 'SET' button again to confirm the adjusted value and move to the next parameter, or to save the current parameter's value.
5. Exit Setting Mode: Long press the 'SET' button to exit the setting mode and save all changes.

Parameter List:

• A1: Power-on delay time (S)
  • Range: 1-500 seconds
• A2: Over-voltage protection value (V)
  • Range: 100-300V or OFF (default: 270V)
  • Note: Setting above 300V will disable over-voltage protection.
• A3: Over-voltage recovery value (V)
  • Range: 95-295V (default: 265V)
• A4: Over-voltage recovery delay time (S)
  • Range: 1-500 seconds (default: 30s)
• A5: Over-voltage protection action time (S)
  • Range: 0.1-30 seconds (default: 0.5s)
• A6: Under-voltage protection value (V)
  • Range: OFF-80-210V (default: 170V)
  • Note: Setting below 140V will disable under-voltage protection.
• A7: Under-voltage recovery value (V)
  • Range: 85-215V (default: 175V)
• A8: Under-voltage recovery delay time (S)
  • Range: 1-500 seconds (default: 30s)
• A9: Under-voltage protection action time (S)
  • Range: 0.1-30 seconds (default: 0.5s)
• A10: Over-current protection value (A)
  • Range: 1-16A (default: 16A)
• A11: Over-current recovery delay time (S)
  • Range: 1-500 seconds (default: 30s)
• A12: Over-current protection action time (S)
  • Range: 0.1-30 seconds (default: 0.5s)
• A13: Voltage calibration (%)
  • Range: -9.5 to +9.5%
• A14: Continuous over current faults times
  • Range: OFF-1-20 times
• A15: Current calibration (%)
  • Range: -9.5 to +9.5%

Additional Functions:

• Restore Factory Settings: Long press the 'DOWN' button for more than 12 seconds.
• Fault Inquiry: Long press the 'UP' button for more than 12 seconds to query the last fault recorded.
• Manual Switch: The protection function can be turned off by pressing the power key.

7. Maintenance

The TOMZN TOSVA-16 requires minimal maintenance to ensure optimal performance and longevity.

• Cleaning: Wipe the device with a soft, dry cloth. Do not use abrasive cleaners or solvents.
• Inspection: Periodically check the plug and socket for any signs of damage, wear, or loose connections.
• Storage: If not in use for an extended period, unplug the device and store it in a cool, dry place.

8. Troubleshooting

If you encounter issues with your TOSVA-16 protector, refer to the following common problems and solutions:

• Device not powering on:
  • Ensure the protector is securely plugged into a live wall socket.
  • Check if the wall socket itself is functioning by plugging in another appliance.
  • Verify the power button has been pressed.
• Appliance not receiving power:
  • Check the protector's display for any fault indicators (e.g., 'OV' for over-voltage, 'UV' for under-voltage, 'OC' for over-current).
  • If a fault is indicated, the protector has tripped. It will automatically recover after the set delay once the condition normalizes.
  • Ensure the appliance is correctly plugged into the protector's socket.
• Frequent tripping:
  • Review your set protection parameters (A2, A6, A10). They might be set too sensitively for your electrical environment or appliance.
  • Use the 'Fault Inquiry' function (long press UP button for >12s) to identify the type of fault that is occurring.
  • Consider the power requirements of your appliance; it might be drawing current close to or exceeding the set over-current limit.
• Display not working or showing incorrect values:
  • Try resetting the device by unplugging and re-plugging it.
  • If values appear incorrect, consider using the voltage/current calibration functions (A13, A15) if you have a known reference.
  • Restore factory settings (long press DOWN button for >12s) if calibration issues persist.

9. User Tips

• Understand Your Settings: Take time to familiarize yourself with each adjustable parameter (A1-A15) and their default values. Adjusting these settings can significantly impact how the protector functions with your specific appliances and electrical environment.
• Initial Monitoring: After initial setup or parameter changes, monitor the protector's display for a few hours or days to ensure it's operating as expected and not tripping unnecessarily.
• Appliance Compatibility: While the TOSVA-16 is versatile, always ensure the total power draw of your connected appliance does not exceed the protector's maximum load (16A).

10. Warranty and Support

For warranty information or technical support, please refer to the seller's terms and conditions or contact the point of purchase. Keep your purchase receipt as proof of purchase.