1. Introduction
The ATORCH AT3235 is an advanced IoT intelligent electrical parameter measuring instrument designed for comprehensive monitoring of AC power. It functions as an ammeter, voltmeter, wattmeter, and power meter, providing real-time data and historical statistics. Equipped with WiFi and Bluetooth connectivity, it allows for remote control and data transmission via mobile applications and PC software. Its 2.4-inch high-definition display offers clear visualization of various electrical parameters, curves, and statistical reports.

2. Specifications
The AT3235 is built with a 32-bit ARM Cortex CPU core for high performance and efficient operation. Key specifications are detailed below:
| Parameter | Value |
|---|---|
| Product Name | AT3235 Networked Measuring Instrument |
| Product Model | AT3235 |
| Instrument Power Supply | AC85~265V (Independent power supply) |
| Measuring Voltage Range | AC0~320V |
| Measuring Current Range | 0~35A |
| Measuring Power Range | 0~11200W (Active Power) |
| Energy Range | 0~999999Wh |
| Power Factor | 0~11200W |
| Total KWh and Cost Display | 0.000KWh-9999KWh, 0.00COST----9999COST |
| Connectivity | WiFi Networking, Bluetooth Connection |
| Display Type | Analog and Digital (2.4-inch high-definition color screen) |
| Operating Temperature | -25~45°C |
| Dimensions | 170x130x80mm |
| Memory | Built-in large capacity storage memory (EEPROM 1,000,000 wipe) |
| Certification | CE |
| Battery Included | No (Built-in standby battery for display after power failure) |


3. Product Components and Wiring
The AT3235 features a clear front operation panel and a versatile rear wiring panel. Understanding these components is crucial for proper setup and use.
3.1 Front Panel Overview
- High definition color screen: Displays all measurement data and settings.
- ON/OFF button: Main power switch for the device.
- Test output port: For connecting devices to be tested.
- Online indicator light: Indicates network status.
- Switch screens: Buttons to navigate through different display interfaces.
- Numerical decrease key: Used for adjusting values in settings.
- Long press to enter the background: Activates the settings menu.
- Settings key: Short press to confirm selections.
- Power indicator light: Shows if the device is powered on.
3.2 Rear Panel Overview
- Tested output terminal (OUTPUT-1, OUTPUT-2): Connects to the load or appliance being measured.
- Tested input terminal (INPUT-1, INPUT-2): Connects to the AC power source.
- Power output port: Additional output for tested devices.
- Instrument independent power supply (AC85-265V): Dedicated power input for the AT3235 itself.
- Power input port: Main power input for the system.

3.3 Operation Wiring Diagram
The AT3235 allows for testing various household appliances. It is compatible with both high and low voltage systems. The testing voltage range is AC0-320V, and the current range is 0-35A, with a measured power up to 11200W.
Warning: Input 1 and Output 2 can only be connected to one at a time. The output can be connected to multiple electrical appliances.

4. Setup
4.1 Initial Power-up
- Connect the AT3235 to an independent AC power supply (AC85-265V) using the dedicated power input on the rear panel.
- Turn on the main ON/OFF switch on the front panel. The device display should light up.
4.2 WiFi Networking (for voltmeters with WiFi modules)
To utilize the remote monitoring and control features, connect your AT3235 to your WiFi network via the Smart Life or Tuya App.
- Download the Smart Life App or Tuya App: Search for "Smart Life" or "Tuya App" in your mobile app market (Google Play Store for Android, Apple App Store for iOS) and install it.
- Add "ATorch as WiFi Connected Electricity Meter (AT4PWS)":
- Ensure Bluetooth and location permissions are enabled on your smartphone.
- Open the Smart Life app and click to add a device.
- Power on the AT3235. The device's red light will flash, indicating it has entered distribution network mode and is waiting for a WiFi connection.
- In the app, select your 2.4G WiFi network and enter the password.
- Follow the on-screen prompts in the app to complete the pairing process.
- Once successfully paired, the device will connect to the cloud, and you can set multiple values for remote control.

4.3 Bluetooth Connection
The AT3235 supports Bluetooth BLE and SPP dual-mode protocols for short-range data transmission. This allows for real-time data display and export of power consumption information to a PC or mobile phone via Bluetooth connection (data can only be obtained during Bluetooth connection).

5. Operating Instructions
5.1 Display Navigation
The 2.4-inch high-definition display provides various interfaces for monitoring and settings:
- Switching Interfaces: Short press the "+/-" buttons to cycle through different measurement functions and display screens.
- Functional Interface: Displays safety protection, electricity statistics, quadruple alarm prompts, peak value recording, and electrical measurement curves.
- Statistical Reports: View daily, monthly, and annual statistical reports of electricity consumption.


5.2 Real-time Data and Peak Recording
The device provides real-time display of current and voltage curves, facilitating a clear understanding of operating status and wave amplitude. It also records peak values, which helps in detecting abnormal electricity consumption.

5.3 Standby Display Modes
The AT3235 features four standby display styles, and with its built-in standby battery, it can continue to run accurately even after a power failure. The standby time can be adjusted once and does not need readjustment after power off, saving time and effort.
- Default Style
- Large Font Style
- Time Calendar Style
- Screen Off Style
To change the standby style, press and hold the 'M' key to enter the background settings, then select 'Standby Style Setting'.

5.4 Electricity Tariff Settings
The device supports three different electricity tariff modes, allowing for flexible calculation of electricity bills:
- Single Rate Mode: Only a single rate electricity price can be set.
- Peak Valley Tiered Electricity Price Mode: Allows setting different prices for peak and off-peak hours.
- Steps Electricity Tariff Mode: Enables setting tiered electricity prices based on consumption levels.

5.5 APP Control Software
The AT3235 integrates with powerful IoT intelligent APP control software (Smart Life/Tuya App) for WiFi networking, remote control, and remote testing. The app provides:
- Function Control: Remotely manage device settings.
- Data Monitoring: Real-time monitoring of power consumption data.
- Electrical Parameter Curve Statistics: View historical data and trends.
- Prepaid Function: Manage electricity charges and balance.


6. Maintenance
6.1 Firmware Upgrade
The AT3235 offers lifetime free firmware update functionality via WiFi networking. This ensures your device always has the latest features and improvements.

6.2 System Settings and Calibration
The device features a comprehensive backend settings menu (BenFang Sys Settings) accessible by long-pressing the 'M' key. Here you can perform various maintenance tasks:
- Language: Switch between English and Chinese.
- Display/Standby Brightness: Adjust screen illumination.
- System Sound Switch: Turn key beeps on/off.
- Cost Mode Setting: Configure electricity tariff modes (Price-A, Price-B, Price-C).
- Calibration Reference: Adjust Voltage, Current, and Power calibration values for accuracy.
- Zero All Data: Reset all recorded data.
- WiFi Device Reset: Reinitialize WiFi settings.
- Default Setting: Restore factory default settings.
- Calibrate Time Date: Set the device's internal clock.

7. Troubleshooting
If you encounter issues with your AT3235, refer to the following common troubleshooting tips:
- Device Not Powering On: Ensure the independent power supply (AC85-265V) is correctly connected and the ON/OFF switch is in the 'ON' position.
- WiFi Connection Issues:
- Verify your router is broadcasting a 2.4GHz WiFi signal. The device does not support 5GHz networks.
- Check if the device's red light is flashing, indicating it's in pairing mode. If not, perform a 'WiFi Device Reset' from the settings menu.
- Ensure your smartphone has Bluetooth and location services enabled during the pairing process.
- Confirm the WiFi password entered in the app is correct.
- Inaccurate Readings:
- Check the wiring connections carefully, ensuring they match the operation wiring diagram (Figure 5).
- Consider performing a 'Voltage Calibrate Ref', 'Current Calibrate Ref', or 'Power Calibrate Ref' from the backend settings if you have a known accurate reference.
- Overload/Protection Alarms: The device has built-in safety features for Over Voltage (OVP), Over Current (OCP), and Over Power (OPP).
- If an alarm triggers, check the connected load and ensure it is within the device's specified ranges (AC0-320V, 0-35A, 0-11200W).
- Adjust the 'Over Protect Delay' setting in the backend menu to prevent surge damage from momentary fluctuations.
- Review and adjust the 'Over Voltage Protect', 'Over Current Protect', and 'Over Power Protect' thresholds in the settings if necessary.
- Display Issues: If the display is too dim or too bright, adjust 'Display Brightness' and 'Standby Brightness' in the settings.
- Data Loss: The device has built-in memory. If data appears lost, ensure the device was not reset using 'Zero All Data' or 'Default Setting' inadvertently.

8. User Tips
- Regular Monitoring: Utilize the mobile app for continuous remote monitoring of your electrical parameters. This allows you to quickly identify any anomalies or unexpected power consumption patterns.
- Data Analysis: Take advantage of the daily, monthly, and annual statistical reports to analyze your electricity usage trends and identify areas for energy saving.
- Correct Wiring: Always double-check your wiring according to the provided diagram to ensure accurate measurements and safe operation. Incorrect wiring can lead to inaccurate readings or damage to the device/appliances.
- Firmware Updates: Periodically check for and install firmware updates via WiFi to benefit from new features, performance improvements, and bug fixes.
- Customizable Alarms: Configure the over-protection settings (OVP, OCP, OPP) to suit your specific needs and protect your connected appliances from potential damage due to electrical fluctuations.
9. Warranty and Support
ATORCH is committed to providing high-quality products backed by 17 years of dedicated research and manufacturing experience. For any product-related inquiries, technical support, or warranty claims, please contact the ATORCH Innovative Manufactory Co., Store directly through your purchase platform.
Please retain your proof of purchase for warranty validation. Specific warranty periods and terms may vary; refer to the seller's policy at the time of purchase.






