10
UP Arrow Key + DOWN Arrow Key
Press
UP
arrow key to activate the LCD backlit
Press
DOWN
arrow key to exit the LCD backlit
LEFT Arrow Key + RIGHT Arrow Key
Press LEFT arrow key to decrease the contrast of LCD
Press
RIGHT
arrow key to increase the contrast of LCD
V/A Key
Press the
V/A
key to activate voltage measurement and read the voltage value from display.
Push the
V/A
key again to switch current measurement and read the current value from the display
USB Button
Push and light the
USB
button and adjust voltage to 5.2V and the current as 3A to enter USB