7
prompt with low power and over-discharge protection; when the instrument is low
power, the charger can be plugged in to charge, and the instrument can be used
normally in the charging process.
Instructions for use of printer
The key of the printer and the indicator of the printer are integrated. When the
printer is powered on, the indicator light is normally on, and it flashes when the paper
is missing. Press the button once and the printer passes the paper.
Printer change paper: take out the rotating spanner and open the paper cover;
Load the printer paper and pull out a piece of printer paper (tear the teeth out a little
bit). Close the cover and press the print head to the print head. Press the print head
back to the print head with a bit of force.
Operation instruction
After all the test wires are connected, turn on the power switch and enter the
"main menu" screen after the instrument is initialized, as shown in the figure below.
NO.
Instructions
1
Display date and time.
2
Displays the peripheral and current operation status.
This icon is displayed when you insert a USB drive.
This icon is displayed when the printer is inserted.
This icon is displayed when storing information queries.
NO.
Instructions
3
The power of the instrument shows that the icon flickers when the power is
low.
4
In the main menu operation area of the instrument, the corresponding
