1. Introduction
The ATORCH AT2PW is a smart Din Rail Energy Meter and Switch designed for monitoring and controlling electrical parameters in your home or office. Featuring a 1.33-inch TFT HD color display, it provides real-time measurements of voltage, current, power, energy (KWH), frequency, and power factor. With integrated WiFi connectivity, the device can be remotely controlled and monitored via the Tuya or Smart Life mobile applications, offering advanced features like protection functions, timing, countdown, and detailed data logging.
This manual provides essential information for the safe and efficient installation, operation, and maintenance of your AT2PW device.
2. Safety Information
- Installation and maintenance should only be performed by qualified personnel.
- Ensure the main power supply is disconnected before any installation or wiring work.
- Do not operate the device in wet or damp conditions.
- Verify all wiring connections are secure and correct according to the provided diagrams to prevent electrical hazards.
- Do not exceed the maximum operating current or rated voltage of the device.
- Keep the device away from children.
3. Product Features
- Display: 1.33-inch TFT-LCD HD Color Display (240x240 RGB Dot-matrix).
- Measurement Parameters: Voltage (V), Current (A), Power (W), Energy (KWH), Frequency (Hz), Power Factor (PF).
- Connectivity: WiFi (2.4G network only), compatible with Tuya and Smart Life apps.
- Smart Home Integration: Compatible with Amazon Alexa, Google Assistant, and Yandex Alice.
- Remote Control: Turn ON/OFF, timing, and countdown functions via mobile app.
- Protection Functions:
- Over-voltage protection (OVP)
- Under-voltage protection (LVP)
- Over-current protection (OCP)
- Over-power protection (OPP)
- Leakage protection (available on specific models, requires induced current coil)
- Timing/countdown protection
- Over-voltage and under-voltage delay recovery function
- Data Logging: Real-time and historical data graphs (Voltage, Current, Power, CPU Temperature, Electric Quantity, Power Rate).
- Prepaid Function: Set electricity consumption limits and receive alarms.
- Electricity Price Modes: Single rate, step rate, and peak/valley electricity prices.
- Firmware Upgrades: Remote WiFi firmware upgrades for continuous improvements.
- Installation: Standard 35mm Din Rail mounting.
- Relay: Built-in 100A relay (WIFI version includes relay).
- Screen Flip Function: Supports two wiring modes by rotating the display.
4. Specifications
| Attribute | Value |
|---|---|
| Model Number | AT2PW |
| Brand Name | ATORCH |
| Dimensions | 90.80*69.80*36.00mm |
| Operating Temperature | -10°C~+60°C |
| Output Voltage | AC85-265V |
| Accuracy Class | 1% |
| Measuring Energy Range | 0-99999KWH |
| Phase | Single phase |
| Max Operating Current | 80A - 99A (100A relay) |
| Rated Voltage | 220V |
| Power Supply | AC |
| Display Type | Analog and Digital (TFT-LCD HD Color Display) |
| DIY Supplies | Electrical |
| Battery Included | No |
| High-concerned chemical | None |
| Origin | Mainland China |
| Certification | CE, RoHS |
Package Dimensions: Length: 16cm, Width: 14cm, Height: 5cm. Weight: 0.209kg.
5. Package Contents
Depending on the model purchased, your package will contain:
- 1 x AT2PW Din Rail Energy Meter Smart Switch
- 1 x Induced current coil (Only included with models featuring leakage protection function)
- 1 x User Manual
Figure 5.1: AT2PW meter without leakage protection and user manual.
Figure 5.2: AT2PW meter with leakage protection, induced current coil, and user manual.
6. Installation
6.1. Physical Installation (Din Rail Mounting)
The AT2PW is designed for installation on a standard 35mm Din Rail. No screws are required for mounting, making installation convenient and secure.
Figure 6.1: Illustration of AT2PW meters mounted on a 35mm Din Rail.
Figure 6.2: Product dimensions (90.8mm height, 36mm width, 70mm depth) for installation planning.
6.2. Wiring Diagram
Ensure the main power is OFF before proceeding with wiring. The device supports two wiring modes, which can be adjusted using the screen flip function.
Figure 6.3: Wiring Diagram 1 - Standard connection with L-IN (Live Input), N-IN (Neutral Input), L-OUT (Live Output), N-OUT (Neutral Output) and connection to circuit breakers and load.
Figure 6.4: Detailed view of Wiring Diagram 1, showing input and output terminals.
Figure 6.5: Wiring Diagram 2 - Connection for models with leakage protection, including the induced current coil.
Figure 6.6: Detailed view of Wiring Diagram 2, showing the induced current coil connection.
Figure 6.7: The screen flip function allows for original top-in/bottom-out or bottom-in/top-out wiring by rotating the display.
6.3. App Download and Pairing
- Download the "Smart Life" or "Tuya" app from Google Play (Android) or Apple App Store (iOS).
- Power on the meter. The WiFi LED will flash, indicating it's in pairing mode.
- Open the app, click "+" to add a device.
- Follow the on-screen instructions to discover the device and connect it to your 2.4G WiFi network.
Figure 6.8: Steps for downloading the app, entering WiFi password, and successful network connection.
Figure 6.9: Comprehensive guide for app setup, including adding devices, WiFi pairing, timing settings, and graphical curves.
7. Operation
7.1. Device Display and Buttons
The AT2PW features a clear color display showing various electrical parameters. The device has physical buttons for local control and navigation.
Figure 7.1: The display shows real-time voltage, current, power, KWH, frequency, and power factor. It also indicates standby brightness, standby time, and protection settings.
Figure 7.2: Main measurement display area, movable scroll bar, Power Indicator, and WiFi Connect indicator. Long press "+" key to turn ON/OFF, short press to move screen data parameters upward. Long press "-" key to turn ON/OFF, short press to move screen data parameters downward. Short press "M" key to set parameter value, long press "M" key to enter background settings.
7.2. Remote Control via Mobile App
Once connected to the app, you can remotely control and monitor your device from anywhere.
Figure 7.3: The mobile app allows simultaneous control of multiple AT2PW devices.
Figure 7.4: App interface showing remote ON/OFF switch, timing, and countdown functions.
8. Mobile App Features
8.1. Real-time Monitoring and Graphs
The app provides comprehensive data monitoring and graphical representations of electrical parameters.
Figure 8.1: Voltage graph showing hourly statistics.
Figure 8.2: Current and Power graphs showing hourly statistics.
Figure 8.3: Overview of mobile app functions, including data monitoring, charging, and discharging graphics statistics.
Figure 8.4: Electricity and Electricity Charge Statistics, showing daily, monthly, and yearly data.
8.2. Protection Settings
Configure various protection thresholds to safeguard your electrical system.
Figure 8.5: The app allows setting of Under Voltage, Over Voltage, Over Current, and Over Power protection. An alarm will be triggered if thresholds are exceeded.
Figure 8.6: Leakage protection parameters can be set in the app, including leakage current, electric, and off-threshold. (For models with leakage protection).
Figure 8.7: Overview of the 7 major protection functions: Over-voltage, Over-current, Over-power, Under-voltage, Leakage protection, Timing/countdown protection, and Over-voltage/Under-voltage delay recovery function.
8.3. Alarm Event Notification Settings
Configure the app to receive notifications for various fault conditions.
Figure 8.8: Steps to set up alarm notifications: 1. Click 'Home', 2. Click '+', 3. Click 'When device status changes', 4. Select your device, 5. Select 'Fault', 6. Choose 'over voltage alarm' (or other fault), 7. Click '+' to add task, 8. Select 'smart scenes', 9. Choose 'Message Center' for notification method.
Figure 8.9: Example of an over-voltage alarm notification received on a mobile phone.
8.4. Prepaid Function
Manage your electricity consumption with the prepaid function.
Figure 8.10: The prepaid function allows setting a power electricity limit. When the remaining power capacity is less than the alarm value, the power will be disconnected.
8.5. Electricity Price Modes
Set different electricity price calculation methods based on your needs.
Figure 8.11: The app supports Single Price, Step Price, and Peak/Valley Price modes for electricity calculation. These can be configured in the app settings.
8.6. Firmware Upgrade
Keep your device updated with the latest features and improvements.
Figure 8.12: Firmware updates are released irregularly and can be performed remotely via WiFi through the Smart Life app's device upgrade section.
9. Maintenance
- Keep the device clean and free from dust. Use a soft, dry cloth for cleaning.
- Avoid exposing the device to extreme temperatures or humidity.
- Regularly check wiring connections for tightness and signs of wear.
- Ensure the device's firmware is up to date for optimal performance and security.
10. Troubleshooting (Q&A)
- Q: Are there any charges for data cloud?
- A: No, data cloud services are free.
- Q: What app is supported and where can I download it?
- A: Currently, Tuya APP and Smart Life APP are supported. You can download them from major application markets (Google Play for Android, Apple App Store for iOS).
- Q: Does this currently support a computer app?
- A: The WiFi version does not support a computer app. (A Bluetooth version might support it, please check its specific description).
- Q: What types of mobile phones are supported?
- A: It supports both Android phones and Apple phones.
- Q: How big is the shunt?
- A: It has a built-in 100A shunt, so an external CT is not required.
- Q: Is it single-phase or three-phase?
- A: This is a single-phase electricity meter.
- Q: Is this product a 2.4G or 5G network?
- A: This model is the WiFi version and supports 2.4G networks. It does not currently support 5G.
- Q: Regarding the relay, what is the difference between the WiFi version and the Bluetooth version?
- A: The WiFi version includes a built-in 100A relay. The Bluetooth version does not include a relay.
- Q: Does the product have power-off memory?
- A: Data has power-off memory. The switch mode does not have power-off memory; once power is restored, the relay is closed, and the screen will normally display 'ON' indicating the connection is not disconnected.
11. User Tips
- For optimal performance and access to the latest features, ensure your device's firmware is regularly updated via the Smart Life app.
- When setting up alarm notifications, utilize the 'Message Center' option in the app for reliable alerts on your mobile device.
- If you experience issues with the display or settings, try navigating the background settings using the 'M' button as described in Section 7.1.
12. Warranty and Support
This product is certified with CE and RoHS standards, ensuring compliance with European safety, health, and environmental protection requirements.
Figure 12.1: Certificate of Conformity (CE).
Figure 12.2: Certificate of Conformity (CE).
Figure 12.3: Certificate of Conformity (CE).
For any technical support or warranty inquiries, please contact your retailer or the manufacturer directly. Refer to the product packaging or manufacturer's website for specific contact details.
