TOMZN TOVS-16Z Automatic Voltage Protector Socket User Manual

1. Introduction

The TOMZN TOVS-16Z is an automatic voltage protector socket designed to safeguard your electrical appliances from damage caused by over-voltage and under-voltage conditions. It features real-time voltage measurement and automatic recovery functions, ensuring continuous protection for your home and family's safety.

Front view of TOMZN TOVS-16Z Automatic Voltage Protector Socket — Figure 1: Front view of the TOMZN TOVS-16Z Automatic Voltage Protector Socket, showing the digital display and control buttons.

2. Safety Information

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

Ensure the device is used with an appropriate power supply (100-300VAC) and within its maximum loading power (16A).
Do not disassemble or modify the device.
Keep the device away from water and excessive moisture.
Do not use the device if it appears damaged.
This device is designed for indoor use only.
Always ensure the appliance connected to the protector is compatible with the protector's specifications.

Safety socket protecting a baby from electrical hazards — Figure 2: The voltage protector provides rapid response (within 0.1 seconds) to dangerous voltage fluctuations, enhancing safety for household appliances and users.

3. Product Overview

The TOVS-16Z is a compact and intelligent voltage protection device. Key features include:

Digital Display: Shows real-time voltage.
Control Buttons: "SET", "Up" (↑), and "Down" (↓) for configuration.
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.
Automatic Recovery: Restores power once voltage returns to a safe range after a set delay.
Voltage Calibration: Allows fine-tuning of voltage readings.
Flame-Retardant Housing: Constructed from PC flame-retardant material for enhanced safety.

Detailed view of product components: high conductivity copper plate, safety socket, and strong flame retardant material — Figure 3: Internal and external features, including high conductivity copper plates, a secure socket design, and robust flame-retardant engineering plastics.

4. Specifications

Function	Technical Parameter	Function	Technical Parameter
Input voltage	AC 90-300V	Power-on delay time	1-500s (default 10s)
Over-voltage protection value	100-300V (default 270V)	Over-voltage recovery value	95-295V (default 265V)
Under-voltage protection value	80-210V (default 80V)	Under-voltage recovery value	85-215V
Recovery delay time	1-500s (default 30s)	Action time	0.1-30s (default 1s)
Continuous over current faults times	1-20 times (default OFF)	Electrical and mechanical life	≥100000 cycles
Power consumption	≤2W	Socket type	EU Plug
Boundary dimension	122 x 55 x 90 mm	Rated Current	16A
Certification	CE	Is Smart Device	No

Table of product parameters and technical specifications — Figure 4: Detailed technical parameters for the voltage protector, including voltage ranges, delay times, and dimensions.

Dimensions of the TOMZN TOVS-16Z voltage protector — Figure 5: Physical dimensions of the device: approximately 122mm (4.8in) height, 55mm (2.17in) width, and 90mm (3.54in) depth (including plug).

5. Setup

Unpacking: Carefully remove the voltage protector from its packaging. Inspect for any visible damage.
Placement: Choose a standard EU wall socket for installation. Ensure the location is dry and free from obstructions.
Installation: Plug the TOMZN TOVS-16Z directly into the wall socket.
Connect Appliance: Plug your electrical appliance (e.g., water heater, refrigerator, TV) into the socket on the front of the voltage protector.
Power On: The device will power on and display the current voltage. It will initiate a power-on delay before supplying power to the connected appliance.

Voltage protector connected to a water heater — Figure 6: Example of the voltage protector in use with a household appliance like a water heater.

Various electrical appliances suitable for the voltage protector — Figure 7: The device is suitable for a wide range of AC indoor electrical equipment, including air conditioners, water heaters, microwave ovens, washing machines, televisions, humidifiers, electric fans, and electric heaters.

6. Operating Instructions

The device displays the current voltage. You can adjust various protection parameters using the "SET", "Up" (↑), and "Down" (↓) buttons.

6.1. Accessing Settings

Press and hold the "SET" button for approximately 3 seconds to enter the parameter setting mode. The display will show "P1". Use the "Up" (↑) and "Down" (↓) buttons to change the values. Press "SET" again to confirm a setting and move to the next parameter. To exit the setting mode, cycle through all parameters until "End" is displayed, then press "SET".

6.2. Parameter Settings Guide

Flowchart for product setup and parameter adjustment — Figure 8: Detailed flowchart illustrating the sequence for adjusting protection parameters using the SET, Up, and Down buttons.

230 (Voltage display): This is the default display mode showing the current voltage.
P1 (Power-on delay time S): Set the delay (1-500 seconds) before power is supplied after the device is turned on or recovers from a fault. Default: 10s.
U1 (Over-voltage protection value V): Set the upper voltage limit (100-300V). If the voltage exceeds this, power is cut. Default: 270V.
U2 (Over-voltage recovery value V): Set the voltage level (95-295V) at which power will be restored after an over-voltage event. Default: 265V.
U3 (Over-voltage recovery delay time S): Set the delay (1-500 seconds) before power is restored after an over-voltage event. Default: 30s.
U4 (Over-voltage protection action time S): Set how quickly (0.1-30 seconds) the device reacts to an over-voltage event. Default: 1s.
U5 (Under-voltage protection value V): Set the lower voltage limit (80-210V). If the voltage drops below this, power is cut. Default: 80V.
U6 (Under-voltage recovery value V): Set the voltage level (85-215V) at which power will be restored after an under-voltage event.
U7 (Under-voltage recovery delay time S): Set the delay (1-500 seconds) before power is restored after an under-voltage event. Default: 30s.
U8 (Under-voltage protection action time S): Set how quickly (0.1-30 seconds) the device reacts to an under-voltage event. Default: 1s.
U9 (Voltage calibration): Adjust the displayed voltage by -9.5 to +9.5 to match a reference meter if needed.
End: Press "SET" to exit settings.
OFF (Manual switch): Turn off the protection function by pressing the "Down" (↓) key when in normal display mode. Press "Up" (↑) to re-enable.

Note: Change setting values by pressing the "Up" (↑) and "Down" (↓) keys.

6.3. Automatic Recovery

After a voltage fault (over-voltage or under-voltage), the device will automatically cut off power. Once the voltage returns to the safe range (above U2 and below U6) and the respective recovery delay time (U3 or U7) has passed, the device will automatically restore power to the connected appliance.

7. Maintenance

Cleaning: Disconnect the device from the power outlet before cleaning. Use a soft, dry cloth to wipe the exterior. Do not use liquid cleaners or sprays.
Inspection: Periodically check the device and its connections for any signs of wear, damage, or loose connections.
Storage: If storing the device for an extended period, keep it in a cool, dry place away from direct sunlight and extreme temperatures.

8. Troubleshooting

Problem	Possible Cause	Solution
Device not powering on/displaying voltage	No power from wall socket; device damaged.	Check wall socket with another appliance. If still no power, contact support.
Appliance not receiving power	Over-voltage or under-voltage condition detected; power-on delay active; manual switch is OFF.	Check the displayed voltage. Wait for voltage to stabilize and recovery delay to pass. Ensure manual switch is ON (press ↑).
Device frequently tripping	Voltage fluctuations are common in your area; protection values are set too narrowly.	Consider widening the over-voltage (U1) and under-voltage (U5) protection value ranges slightly, or increasing recovery delay times (U3, U7). Consult an electrician if fluctuations are severe.
Displayed voltage is inaccurate	Calibration needed.	Use the voltage calibration (U9) setting to adjust the display to match a known accurate voltmeter.

9. User Tips

For sensitive electronics, it is often beneficial to set a slightly longer power-on delay (P1) to allow the power supply to stabilize before the appliance receives power.
Regularly check the displayed voltage to monitor your home's power stability.
If you experience frequent power fluctuations, consider consulting a qualified electrician to assess your electrical installation.

10. Warranty and Support

For warranty information, technical support, or service inquiries, please contact the seller or manufacturer directly. Keep your purchase receipt as proof of purchase.