HD Color Screen Battery/Power Supply 2-in-1 Tester

Important Statement

This meter does not immediately display battery capacity. After receiving the unit, the battery must be fully charged. Connect the meter and long-press the '+' and '-' buttons simultaneously to reset the capacity to zero. The cumulative measurement when the battery is depleted represents its storage capacity. Users should consult these instructions or contact the manufacturer for assistance.

Model: DT24PW

Application and Electrical Test Specifications

• This Meter is used to measure and display the voltage, current, power, analog load resistance value, discharge capacity, electricity quantity, battery temperature, over-voltage prompt, low-voltage prompt, over-power prompt of the battery pack/power supply, and the percentage value of electricity quantity corresponding to the battery voltage ratio.
• It is suitable for various battery packs such as lithium battery, lithium iron phosphate, lead acid, and nickel metal hydride with an operating voltage range of 0~240V.

Wiring Instructions

Applies to: 8~240V / 0~240V (9V independent power supply)

Diagram Description:

The wiring diagram illustrates the connections for a Battery Pack (8~240V) or Power Supply (0~240V) to the tester. Key connection points are:

• B+: Connects to the positive terminal of the battery pack or power supply.
• B-: Connects to the negative terminal of the battery pack or power supply. This wire should be short and thick for optimal measurement accuracy.
• Bidirectional current sampler (P-/C-): This component must be connected in the negative circuit of the battery pack. It has terminals labeled B- (connecting to the battery pack's negative electrode) and P-/C- (connecting to the negative pole of the load or power supply).
• Connected to load or power supply: Indicates the output terminal of the tester connected to the load, or the input terminal from the power supply.
• Optional relay interface: To enable a cut-off function, the relay requires an independent 9~12V power supply with sufficient power to operate.
• Independent power supply port: This port is used to power the instrument independently with a 9~12V voltage when the test voltage is less than 8V.
• Battery temperature probe: This probe should be attached to the surface of the battery being tested.
• Data cable: Connects the sampler to the control panel.

Note: Strictly follow the connection diagram. The sampler must be connected in the negative circuit of the battery. The data cable on the panel can be extended as needed without affecting data transmission or measurement accuracy.

Main Interface and Button Operation Method

Interface Display Elements:

• Voltage
• Current
• Power
• Resistance
• Electricity Capacity
• Running time
• Battery temperature (requires external probe attachment)
• Battery internal resistance (calculated as no-load voltage minus on-load voltage divided by current; displayed only when current is present)
• Bluetooth indicator light: Shows the status of the Bluetooth connection.

Button Functions:

• Keys +: Short press to switch back screen; long press capacity to clear Zero; simultaneously long press +/- to clear capacity power.
• Setting Key/Menu key: Long press to enter the background setting interface; short press to switch between menu items.
• Keys -: Short press to switch forward screen; long press capacity to clear Zero; simultaneously long press +/- to clear capacity power.
• Keys ON/OFF: Long press to access the shutdown and reset interface; short press to switch the menu column (item turns purple); long press again to execute the selected menu function.

Test Methods

Use Steps of Discharge Mode to Detect Battery Capacity

Connect the meter's input to the DC power supply's output terminal; the screen will display the voltage. Then, connect the meter's output terminal to the user's load device to start displaying current and power values. To determine the maximum current and power output of the DC power supply, adjust the load to cause a sharp voltage drop, indicating the power supply's maximum load capacity. To test rated nominal current and power values and assess DC power supply quality, adjust the load to the nominal rated current and power value and operate for aging for 4-8 hours. The DC power supply is judged qualified if it maintains stable voltage and normal power module temperature.

Use Steps of Charging Mode to Detect Battery Capacity

Similar to discharge mode testing. Connect the meter's input to the DC power supply's output terminal, then connect the meter's output terminal to the user's load device. Adjust the load to test maximum output or rated values as described in the discharge mode section.

Test Method for Output Voltage, Maximum Current, and Maximum Power of DC Power Supply

Connect the meter's input to the DC power supply's output terminal; the screen will display the voltage. Connect the meter's output terminal to the user's load device to display current and power values. To find the maximum current and power output, adjust the load to cause a sharp voltage drop. To test rated nominal current and power values and assess DC power supply quality, adjust the load to the nominal rated current and power value and operate for aging for 4-8 hours. The DC power supply is judged qualified if it maintains stable voltage and normal power module temperature.

Background Settings

Long press the "M" key to enter the background setting interface. Short press the "M" key to switch setting columns. If a number flashes, short press the "+/- " key to adjust it. Long press the "+/- " key to adjust the flashing number.

Menu Options:

• 01. English (中文)
• 02. Clear Cumulative data (清除累计数据)
• 03. Full capacity voltage: Set value for alarm (e.g., 240.00V)
• 04. Zero capacity voltage: Set value for alarm (e.g., 3.00V)
• 05. Over-Power: Set value for alarm (e.g., 1000W)
• 06. Display Brightness: Set value (e.g., 9)
• 07. Standby Brightness: Set value (e.g., 3)
• 08. Enter Standby Time: Set duration (e.g., 60S)
• 09. TempCorrection In.Temp: Set internal temperature correction (e.g., 24.7 C)
• 10. TempCorrection Ex.Temp: Set external temperature correction
• 11. Default Settings (恢复出厂设置)
• 12. Exit (退出)

Restore Factory Settings: Briefly press "M" to the restore setting column, then press "+" for 3 seconds to reset the system.

Use of System Shutdown and Current Reset Interface

Long press the "ON/OFF" key, then short press "M", and then long press to access this interface.

Options:

• 01. No load current clearing: Press and hold the key to make the current zero clearing display "0A" when no load is present.
• 02. System shutdown: Shuts down the system to enter zero power consumption mode when the battery is not used for a long time.
• 03. System reset: Restores the system to factory default values. Accumulated capacity and power values will be cleared. Operate with caution.
• 04. Exit: Exit and return to the main measurement interface.

Steps for Connecting Mobile APP via Bluetooth

Prerequisites: Ensure mobile Bluetooth, location information, and storage permissions are enabled.

1. Search for "E in Apple Apps_ Test" or scan the Android QR code to download and install the app.

2. Open the app and click the Bluetooth icon in the upper left corner of the interface. Select the "DT24PW-BLE" model from the list.

3. Upon successful connection, the host Bluetooth icon turns blue, and a sound indicates data transmission is active.

Warning: If "DT24PW-BLE" does not appear, check phone settings to enable storage and location permissions for the app. The model should display correctly after these permissions are granted.

User Self Calibration

In the background setting interface, long press the "+/- " key to enter calibration mode. Short press "M" to select the no-load current reset column. Short press "+/- " to execute reset. Short press "+/- " again to adjust the calibration coefficient so that the calibrated voltage and current match a standard instrument.

Example: 12.1444V x 01.0100 = 12.1444 V; 00.1076A x 00.9565 = 00.1076 A

Panel Installation and Fixing Instructions

1. Dig a rectangular hole in the panel according to the installation size.

2. Tear off the protective paper from the double-sided adhesive tape on the back of the meter.

3. Insert the meter into the rectangular hole.

4. Press firmly around the edges to ensure the adhesive tape sticks securely to the panel.

More Information

For more details, please visit the website: http://en.atorch.cn