ATORCH BW-600W-DK WiFi DC Electronic Load Tester

1. Introduction

The ATORCH BW-600W-DK is a high-accuracy, multi-functional DC electronic load tester designed for comprehensive battery capacity monitoring and charging applications. Featuring a 2.4-inch high-definition color screen, this device supports WiFi and Bluetooth for digital data transmission and remote control. It is equipped with a built-in charging control module, enabling both charging and discharging tests for various battery types and DC power supplies. This manual provides detailed instructions for the safe and effective operation of your device.

2. Product Overview

The BW-600W-DK is an advanced electronic load tester capable of handling up to 600W and 50A, with a voltage range of 2-200V. It integrates multiple testing functions and offers connectivity via mobile apps (Tuya, Smart Life) and PC software for enhanced control, data logging, and analysis. Its precise measurement capabilities make it an ideal tool for testing battery capacity, mobile power supplies, and the performance of DC power sources.

3. Specifications

The BW-600W-DK is designed with high-accuracy components and robust features for reliable performance.

4. Setup

4.1. Unpacking and Product List

Carefully unpack your ATORCH BW-600W-DK. The standard package includes:

• 1x BW-600W-DK Battery Tester
• 1x DC12V 3A Power Supply
• 1x 10A Red and Black Alligator Clip Cable Set
• 1x Temperature Probe
• 1x Adapter Board
• 1x US to EU Adapter (if applicable)

4.2. Wiring Methods

Proper wiring is crucial for accurate and safe operation. The device supports both 2-wire and 4-wire connection methods. The terminal posts can withstand a maximum current of 40A.

• (1) Two-wire wiring method: This method is relatively simple and convenient. It must be connected to the 2 terminals [A+] and [A-].
• (2) Four-wire wiring method: This method provides more accurate voltage measurements as it is not affected by the voltage drop of the wire. It is recommended for users with a certain circuit knowledge base for optimal precision.

Warning: Do not connect V+V- or I+I- for discharge only. Ensure all four screws are tightened for good contact.

4.3. Initial Power On and System Settings

After connecting the power supply and test leads, press the 'ON/OFF' button to power on the device. The device features a comprehensive system backend settings menu.

Operation Method for System Settings:

1. Press and hold the 'ON/OFF' button on the measurement interface to return to the main menu.
2. Short press the '+'/'-' button to navigate to the 'System Settings' icon. It will turn green when selected.
3. Short press again to enter the system settings interface.
4. Use the '+'/'-' buttons to select a column and enter parameters for the corresponding function settings.

Key settings include: Language, Display Brightness, Standby Brightness, Enter Standby Time, Limit Time Discharge, External Temperature Calibration, Voltage/Current Calibration Reference, Discharge/Charging Cutoff Voltage/Current, Over-Current/Over-Power Protection, Over-Temperature settings, C<->D Waiting Time, Zero No-Load Current, WiFi Reset, Zero All Data, Default Setting, Mini Discharge Amp, Start-up Info Switch, System Sound Switch, and Assembly Power Select.

5. Operating Modes

The BW-600W-DK features 18 major operating modes, displayed on its 2.4-inch high-definition color screen. You can switch between different function interfaces by short-pressing the button.

5.1. CC (Constant Current) Mode

This mode is primarily used for constant current discharge testing of batteries or DC power supplies.

Operation: Select 'CC' mode from the menu. Set the desired cut-off voltage and discharge parameters. Press 'OK/Start'. The device will discharge at the set constant current value.

Attention: Do not disconnect power during testing; otherwise, data may be lost.

5.2. CV (Constant Voltage) Mode

This mode tests the constant voltage performance of DC constant current source power supplies.

Operation: Select 'CV' mode. The tested power supply needs to be a constant current power supply. The device will operate at the set constant voltage value for discharge. Press 'OK/Start'.

Attention: Do not test batteries in CV mode, as it may damage the device or the battery. Do not disconnect power during testing.

5.3. CR (Constant Resistance) Mode

This mode is used for discharging fixed resistors from batteries or DC power sources.

Operation: Select 'CR' mode. The device will automatically calculate the current based on the set resistance value and the measured voltage, maintaining a constant resistance discharge. Press 'OK/Start'.

Attention: Do not disconnect power during testing.

5.4. CP (Constant Power) Mode

This mode tests the maximum power constant of chargers and DC power supplies.

Operation: Select 'CP' mode. The device automatically calculates the current to voltage ratio and maintains the set power value for discharge. This mode is useful with a high-voltage trigger to test the maximum power output of a charger. Press 'OK/Start'.

Attention: Do not disconnect power during testing.

5.5. BRT (Battery Internal Resistance Test) Mode

This mode measures the internal resistance of a battery. A smaller internal resistance indicates better battery health.

Operation: Select 'BRT' mode. Follow the wiring diagram (Figure 4). Press 'OK/Start' to automatically detect and measure the battery's internal resistance.

Attention: Do not disconnect power during testing.

5.6. PT (Power Tester) Mode

This mode automatically detects the power, current, and performance of chargers and DC power supplies.

Operation: Select 'PT' mode. Follow the wiring diagram. Press 'OK/Start' to automatically detect and display four important numerical results throughout the process.

Attention: Do not disconnect power during testing.

5.7. CT (Wire Resistance Tester) Mode

This mode automatically tests the internal resistance and current performance of wires.

Operation: Select 'CT' mode. Connect the wires as shown in the diagram. Press 'OK/Start' to automatically detect and display seven important numerical results throughout the process.

Attention: Do not disconnect power during testing.

5.8. CDC (Charge-Discharge-Charge Cycle) Mode

This mode performs a fully automatic cyclic charging-discharging-charging test.

Operation: Select 'CDC' mode. Follow the wiring instructions. Press 'OK/Start' to initiate the automatic cycle test.

Attention: Do not disconnect power during testing.

5.9. CDxn (Charge-Discharge Cycle - N times) Mode

This mode performs a fully automatic battery charging and discharging cycle test for a customizable number of cycles (1-99).

Operation: Select 'CDxn' mode. Follow the wiring diagram. Press 'OK/Start' to begin the automatic cycle test. The device will detect and display values for each cycle.

Attention: Do not disconnect power during testing.

6. App & PC Software Connectivity

The BW-600W-DK supports remote control and data management via mobile applications and PC software.

6.1. Mobile App (Smart Life / Tuya APP)

The device can be controlled and monitored using the Smart Life or Tuya APP, available on Google Play Market and Apple App Store.

WiFi Pairing and Connection Steps:

1. Download the Smart Life APP: Search for "Tuya" or "Smart Life" in your mobile app store.
2. Add "ATorch as WiFi Connected Electricity Meter (BW600)": After powering on, the device's red light will flash and remain on, indicating it's in distribution network mode.
3. Pairing: Open the Smart Life app. It will automatically prompt to add a device. If not, click 'Add Device'. Select the device's working WiFi and manually enter the password. Click 'Next' to continue. After successful pairing, the app will automatically connect via WiFi.

Important: Ensure Bluetooth and location permissions are enabled on your mobile device when adding devices.

The mobile app allows for remote control of most host functions, data detection, and charging/discharging curve statistics.

Android APP Statement: Some mobile phones may not be compatible with the E-test APP in Google Play. If not compatible, please download the APP provided by us. Please install and test the APP if you use a Samsung mobile phone. When online, be sure to turn on GPS positioning permission. Before purchasing, please download and use it to check if Chinese and English can be switched. If not, please do not purchase to avoid unnecessary disputes.

6.2. PC Software

The BW-600W-DK can connect to a PC via a HID data cable for advanced functions.

Download:

• PC Software: http://en.atorch.cn/NewsDetail.aspx?ID=96
• Computer Online Software Manual: http://en.atorch.cn/upload/file/20250830/6389217582483042597381115.pdf

The PC software allows you to read device current, voltage, power, capacity, and other data, export XLS table data, view graphics, perform calibration, firmware upgrades, and conduct test cycles.

Note: The WiFi app can only view data and curve data, and cannot export data, unlike the PC software.

7. Maintenance

To ensure the longevity and accuracy of your BW-600W-DK, follow these maintenance guidelines:

• Cleaning: Use a soft, dry cloth to clean the device. Avoid using abrasive cleaners or solvents.
• Storage: Store the device in a cool, dry place away from direct sunlight and extreme temperatures.
• Calibration: The device is factory-calibrated. If you suspect accuracy issues, refer to the 'Voltage Calibrate Ref' and 'Current Calibrate Ref' settings in the system backend. Do not modify these parameters without proper calibration equipment.
• Firmware Updates: Check the official ATORCH website for any available firmware updates to ensure optimal performance and access to new features.

8. Troubleshooting

This section addresses common issues and protection functions of the BW-600W-DK.

8.1. Protection Functions

The device has built-in over-current, over-temperature, and over-power safety protection functions. If a protection interface pops up:

• Over-Current/Over-Power: Adjust the parameters to stay within the maximum power limits. When starting discharge, slowly and smoothly adjust the preset value to avoid triggering protection.
• Over-Temperature: Ensure adequate ventilation around the device. Reduce the load if the temperature remains high. The fan over-temperature protection stops discharge if the discharge tube overheats (40-150°C). Probe over-temperature protection is also active (0-150°C).

8.2. General Issues

• Inaccurate Readings: Ensure a 4-wire connection method is used for higher accuracy, especially for sensitive measurements. Check that all connections are tight and secure.
• App Connectivity Issues: Verify that Bluetooth and location permissions are enabled on your mobile device. Ensure the device is in distribution network mode (red light flashing/on) during pairing.
• Charging Current Limitation: The charging current is controlled by the constant current source size of the charger. The voltage of the constant current source must be at least 3V higher than the charged battery voltage. If the voltage difference is too small, it can be limited by wire current.
• No Current/Indicator Light with Charger: The charger input has positive and negative reverse protection. Ensure correct polarity when connecting.

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9. User Tips

• For the most accurate measurements, always use the 4-wire connection method, especially when testing low resistance or high current.
• When using the mobile app, ensure your phone's Bluetooth and location services are enabled for seamless device discovery and connection.
• If you encounter issues connecting to PC software, double-check the HID data cable connection and ensure you have downloaded the correct software version from the official ATORCH website.
• Always start with lower current/power settings and gradually increase them to avoid triggering protection mechanisms, especially when testing new setups.
• Remember that the terminal posts have a maximum current limit of 40A. Be mindful of this when conducting high-current tests.

10. Frequently Asked Questions (FAQ)

Q: How do I connect the device to a PC?

A: Connect the device to your PC using a HID data cable. You will need to download the dedicated PC software from the official ATORCH website (http://en.atorch.cn/NewsDetail.aspx?ID=96).

Q: What software should I download for mobile use?

A: Search for "Tuya" or "Smart Life" in your mobile app store (Google Play Market for Android, Apple App Store for iOS). Ensure Bluetooth and location permissions are enabled on your phone for pairing.

Q: Why is my discharge current limited?

A: The discharge current is limited by the maximum power (600W for this model). For example, at 200V, the current will be limited to less than 3A. At 12V, it can reach up to 50A. Always ensure your settings are within the device's power limits.

Q: Can I test batteries in Constant Voltage (CV) mode?

A: No, it is explicitly stated not to test batteries in CV mode, as it may damage the device or the battery itself. CV mode is intended for testing constant current source power supplies.

11. Warranty & Support

For detailed information regarding product warranty, technical support, and additional documentation, please refer to the official ATORCH website or the comprehensive user manual PDF.

User Manual (PDF): A detailed user manual in PDF format is available for download. You can access it via this link: ATORCH BW-600W-DK User Manual PDF. This document contains further in-depth instructions and diagrams.

Official Website: Visit the ATORCH official website for the latest software, firmware updates, and support resources.