1. Introduction
The SINOTIMER SVP688 is a smart WiFi-enabled energy meter and protector designed to monitor and protect electrical circuits. It provides real-time data on current, voltage, and energy consumption (kWh), along with advanced protection features against over-voltage, under-voltage, over-current, and electric leakage. The device can be controlled and configured remotely via the Smart Life or Tuya Smart mobile application, offering convenience and enhanced safety for your electrical system.
2. Safety Information
Please read and understand all safety instructions before installing or operating this device. Failure to follow these instructions may result in electric shock, fire, or serious injury.
- Installation should only be performed by a qualified electrician.
- Ensure the main power supply is turned OFF before any installation or wiring work.
- Verify that the voltage and current ratings of the device match your electrical system requirements.
- Do not operate the device if it is damaged or malfunctioning.
- Keep the device away from water and excessive moisture.
- This device is designed for indoor use only.
3. Key Features
- Remote Control: Turn ON/OFF the device from anywhere using your smartphone.
- Real-time Monitoring: View current, voltage, leakage current, and total kWh consumption on your phone.
- Adjustable Protection Parameters: Set thresholds for over-voltage, under-voltage, over-current, and electric leakage via the app or directly on the device.
- Electric Leakage Protection: Detects and protects against electric leakage (10-99mA, default 50mA). This feature can be turned off.
- Automatic Reclosing: Configurable reconnect time (delay on time) from 10s-99s (default 30s).
- Multiple Protection Attempts: Over Current and Leakage Protect Times can be set from 1-30, or turned Off (default 5 attempts).
- Over Temperature Protection: Monitors temperature from 10-85°C (this parameter is app-only).
- Timing Modes: Supports timing mode, countdown mode, and cycle timing for automated control.
- Backlight Display: Clear digital display for easy reading of parameters.
4. Specifications
| Parameter | Value |
|---|---|
| Brand Name | SINOTIMER |
| Model Number | SVP688 |
| Rated Supply Voltage | AC 230V |
| Rated Frequency | 50/60Hz |
| Operation Voltage Range | AC80V-400V (single phase) |
| Electric Current (>A) | 1-63A |
| Under Voltage Protection | 145V-210V (adjustable, default: 175V) |
| Over Voltage Protection | 240V-300V (adjustable, default: 275V) |
| Over Current Protection | 1A-63A (adjustable, default: 63A) |
| Electric Leakage Protection | 10-99mA (default: 50mA) |
| Reconnect Time (delay on time) | 10s-99s (default: 30s) |
| Over Current & Leakage Protect Times | 1-30 Off (default: 5) |
| Over Temperature Protect | 10-85°C (App only) |
| Power Display Range | 0-99999.9kWh |
| Operating Temperature | -30°C to 70°C |
| Dimensions (W x H x D) | 36mm x 85mm x 65mm |
| Theory | Electromagnetic Relay |
| Contact Load | High Power |
| Use | Protective |
| Protect Feature | Sealed |
| Certification | CE, RoHS |
5. Package Contents
The product package typically includes:
- 1x SINOTIMER SVP688 Smartlife WiFi Relay Energy Meter
- 1x User Manual (PDF version available for download)
6. Installation
WARNING: Installation must be performed by a qualified electrician. Ensure all power is disconnected before proceeding with installation.
- Mount the SVP688 device onto a standard DIN rail in your electrical distribution box.
- Connect the incoming Live (L) and Neutral (N) wires to the 'IN' terminals at the top of the device.
- Connect the outgoing Live (L) and Neutral (N) wires to the 'OUT' terminals at the bottom of the device, leading to the load circuit.
- Ensure all connections are secure and properly tightened.
7. App Setup and Pairing
To utilize the smart features of your SVP688 device, you need to pair it with the Smart Life or Tuya Smart application.
- Download the App: Use your smartphone to scan the QR codes below or search for "Smart Life" or "Tuya Smart" in Google Play Store (for Android) or Apple App Store (for iOS) to download and install the application.
- Create an Account: Open the app and create an account using your mobile number or email address.
- Connect to Wi-Fi: Ensure your mobile phone is connected to a 2.4 GHz Wi-Fi network. The device does not support 5 GHz Wi-Fi.
- Enter Pairing Mode: On the SVP688 device, long press the 'WIFI' button for 5 seconds until the Wi-Fi indicator light begins to flash quickly.
- Add Device in App:
- Open the Smart Life/Tuya Smart app.
- Tap the '+' icon in the upper right corner of the homepage, or select "Add Device".
- Navigate to the "Electrical" category and select "Breaker (Wi-Fi)" or "Smart Meter (Wi-Fi)" from the "Energy" section.
- Confirm your 2.4 GHz Wi-Fi network and enter the password.
- Follow the on-screen instructions, confirming that the indicator is blinking rapidly.
- The app will discover and add the device. Once successfully added, tap "Done".
Figure 4: Screenshot of the Smart Life app's 'Add Device' screen, showing options for various electrical devices.
Figure 5: Screenshot of the Smart Life app's Wi-Fi network selection screen during device pairing.
Figure 6: Screenshot of the Smart Life app prompting to reset the device for pairing, showing the indicator blinking.
Figure 7: Screenshot of the Smart Life app confirming successful device addition and displaying the main energy meter interface.
A video demonstration of the pairing process and setting alarm thresholds is available:
8. Operation
8.1. Device Display and Buttons
The device features a digital display and several buttons for local control and information viewing:
- Display: Shows real-time voltage (V), current (A), power (kW/h), and leakage current (mA).
- PULSE LED: Indicates energy consumption pulses.
- WIFI LED: Indicates Wi-Fi connection status.
- V LED: Indicates voltage status (e.g., over/under voltage).
- A LED: Indicates current status (e.g., over current).
- LEAKAGE LED: Indicates leakage current status.
- SET Button: Used to enter setup mode and confirm settings.
- Up/Down Arrows (Triangle buttons): Used to navigate and adjust parameter values.
- WIFI Button: Used for Wi-Fi pairing (long press) and potentially other functions.
- Power Button (Red): Manual ON/OFF control.
8.2. Viewing Data
Press the 'SET' button briefly to cycle through different display parameters (Voltage, Current, Power, Leakage Current, etc.) on the device's screen.
8.3. Setting Parameters (Device Local Control)
You can set protection parameters directly on the device:
- Long press the 'SET' button for 5 seconds to enter setup mode.
- Use the 'Up' and 'Down' arrow buttons to select the parameter you wish to adjust (e.g., Over Voltage, Under Voltage, Over Current, Leakage Current, Reconnect Time).
- Press the 'SET' button again to confirm your selection.
- Use the 'Up' and 'Down' arrow buttons to adjust the value of the selected parameter.
- Press 'SET' to confirm the new value and move to the next parameter or exit setup mode.
Default Protection Settings:
- Under Voltage Protection: 175V
- Over Voltage Protection: 275V
- Over Current Protection: 63A
- Electric Leakage Protection: 50mA
- Reconnect Time (delay on time): 30s
- Over Current And Leakage Protect Times: 5
8.4. Setting Parameters (App Control)
The Smart Life/Tuya Smart app provides a comprehensive interface for setting all parameters, including the Over Temperature Protection which is only configurable via the app.
- Open the Smart Life/Tuya Smart app and select your SVP688 device.
- Navigate to the 'Settings' or 'Alarm Settings' section within the device interface.
- You will find options to set thresholds for Leakage Current (10-99mA), High Temperature Alarm (10-85°C), Over Current (1A-63A), Overvoltage Alarm (240V-300V), and Undervoltage Alarm (145V-210V).
- Toggle switches are available to enable/disable these alarms.
- You can also configure 'Reclosing Allowed Times' (1-30 or Off) and 'Reclose Recover Seconds' (10s-99s).
- Enter the desired value and tap 'Confirm' or 'Save'.
8.5. Remote ON/OFF Control
From the main screen of the SVP688 device in the Smart Life/Tuya Smart app, you will see an ON/OFF toggle switch. Tap this switch to remotely turn the power supply through the device ON or OFF.
8.6. Timing Functions
The app supports three timing modes:
- Timing Mode: Schedule specific ON/OFF times for the device.
- Countdown Mode: Set a countdown timer for the device to turn ON or OFF.
- Cycle Timing: Configure repetitive ON/OFF cycles.
Access these features within the device's settings in the Smart Life/Tuya Smart app.
8.7. kWh Reset
To reset the accumulated kWh energy meter reading:
- On the device, long press the 'SET' button for 12 seconds.
- The screen will display "PASS".
- Use the 'Up' and 'Down' arrow buttons to set the value to "000" then "222".
- Press the 'SET' button to confirm the reset.
9. User Tips
- The mobile application offers the most comprehensive control and monitoring features. It is highly recommended to configure all settings, especially protection thresholds, through the app for ease of use and access to all parameters.
- The device's backlight is not continuously on. It illuminates when buttons are pressed or when there's an alert.
- Regularly check the energy consumption data via the app to keep track of your electricity usage.
- If you need to reset the kWh meter, follow the specific instructions in section 8.7. Note that some users have reported difficulty resetting kWh via the app, so the physical button method is reliable.
10. Maintenance
- Keep the device clean and free from dust. Use a dry, soft cloth for cleaning.
- Do not use abrasive cleaners or solvents.
- Periodically check wiring connections for tightness and signs of wear.
- Ensure proper ventilation around the device to prevent overheating.
- Regularly update the Smart Life/Tuya Smart app to ensure compatibility and access to the latest features and bug fixes.
11. Troubleshooting
| Problem | Possible Cause / Solution |
|---|---|
| Device not powering on. | Check main power supply. Ensure wiring is correct and secure. |
| Cannot connect to Wi-Fi / App pairing fails. |
|
| Buttons (SET, Up, Down, WIFI) are unresponsive. |
|
| Device trips frequently. |
|
| kWh reading cannot be reset via app. | Use the physical button method described in section 8.7 to reset the kWh reading. |
| Incorrect model received (e.g., no Wi-Fi). | Verify the model number on the device and packaging. Contact your seller for resolution if incorrect. |
12. Frequently Asked Questions (FAQ)
- Q: Can the SVP688 be used with 277V voltage?
- A: Yes, the operation voltage range is AC80V-400V, so 277V is within the supported range.
- Q: How do I perform a complete reset of the device?
- A: For resetting the kWh meter, please refer to section 8.7. For other settings, you can adjust them individually via the app or the device's local controls. A full factory reset procedure is not explicitly detailed but typically involves a specific button combination or app function not covered here.
- Q: Can I use this device as a digital counter and reset it every month?
- A: Yes, it functions as a digital energy (kWh) counter. You can manually reset the kWh reading as described in section 8.7. The app may also offer historical data logging for monthly tracking.
- Q: Does this device support prepaid service functionality?
- A: No, this device is an energy meter and protector, not designed for prepaid service functionality.
13. Warranty and Support
For detailed warranty information and technical support, please refer to the official SINOTIMER website or contact your point of purchase. A PDF version of the user manual is available for download for more comprehensive instructions: