BA1020 Portable Battery Voltage Internal Resistance Tester 32-Bit Kernel Controller High-Precision LiFePO4 18650 Battery Tester 

 Video Link: https://www.bilibili.com/video/BV1RD4y1i7av/?vd_source

 Features: 

 1. this internal resistance tester adopts 32-bit core controller with unique high-precision sampling (greater than 14-bit AD) technology to achieve accurate measurement at micro-ohm level.

 2. This internal resistance tester measures voltage and internal resistance parameters simultaneously, with real accuracy, one byte jump, and 0.2% basic accuracy.

 3. Using Kelvin four-wire test clip, new mold upgrade, LCD display.

 4. the internal resistance tester adopts independent sub-grade two-point calibration to guarantee very small non-linear error.

 5. Good practical performance, lithium battery power supply, Micro USB port charging and communication; algorithm built-in trigonometric function, Kalman filter, etc., to achieve micro-ohm stable measurement. 

 Specifications: 

 MICRO power supply: DC5V 1A

 Resistance basic accuracy: 0.2%

 Voltage basic accuracy: 0.2%

 Resistance measurement range: 1uΩ~200Ω

 Voltage measurement range: 0.1mV~100V (DC)

 Test signal: Sine AC 1KHz

 Test signal current.

 20mΩ file 50mA

 200mΩ/2Ω file 5mA

 20Ω/200Ω file 0.5mA

 Communication baud rate: 115200 (default)

 Product size: 16.5*8*2.8cm 

 Setting Description: 

 Internal resistance tester has 5 keys are.

 Resistance button (top), Power/OK button (middle), Voltage button (bottom), Setting button (left), Return button (right).

 Short press the power button to turn on the tester, and then short press the menu button to enter the setting menu (specific table below): 

 Calibration Steps Description: (calibration good delivery) 

 【1】 Zero point calibration.

 Short press the power button to turn on the instrument, then short press the menu key to enter the setting menu, short press the menu key to select the option you need to enter, and short press the OK key to enter after the cursor selects the calibration zero point. According to the screen prompt short connection test clip, press the confirmation key to prompt the calibration is complete, and finally press the return key to exit.

 【2】Resistance calibration: (detailed operation in the video)

 Short press the power button to turn on the power, then short press the menu key to enter the setup menu, short press the menu key to select the option you need to enter, short press the OK key to enter after the cursor selects the calibration resistance. Short press the menu key again to switch the gear to be calibrated, press the OK key to enter the calibration procedure of the gear, at this time, access the calibration resistor 1 according to the screen prompt and wait for the value to stabilize, press the confirm key. Again according to the screen prompt to access the calibration resistor 2 wait for the value to stabilize, press the confirmation key to indicate the successful calibration, and finally press the return key to exit.

 【3】Voltage calibration.

 Short press the power button to turn on the power, then short press the menu key to enter the setup menu, short press the menu key to select the option you need to enter, the cursor selects the calibration voltage and short press the OK key to enter. Short press the menu key again to switch between high and low voltage levels, press the OK key to enter the calibration procedure for the level, at this time, according to the screen prompts to access the calibration voltage 1 wait for the value to stabilize, press the confirmation key. Again according to the screen prompt to access the calibration voltage 2 wait for the value to stabilize, press the confirmation key to prompt the calibration success, and finally press the return key to exit.

 Note: The internal resistance tester factory all test calibration, the user does not have the calibration conditions to use the function carefully. Voltage, resistance calibration before the need for a zero calibration, and then the need to calibrate the calibration of the gear for calibration operations. Voltage and resistance calibration of each gear are independent of each other and do not affect each other. 

 Package Included: 

 Type A:1X internal resistance tester

 Type B:1X internal resistance tester+1X Kelvin clip

 Type C:1X internal resistance tester+1X meter pen