Part 1 Menu Operation
1.1 Menu instruction
1.1.1 Operation Interface
: Up key, move the cursor upward, and increase the value in setup menu.
: Down key, move the cursor downward, and reduce the value in setup menu.
: Left key, move the cursor leftward, and Shift the flashing digit position to left in setup menu.
: Right key, move the cursor rightward, and Shift the flashing digit position to right in setup menu.
Prompt line
ALM1: Alarm indicator of Alarm 1 ALM2: Alarm indicator of Alarm 2
TXD1: Indicator of data sending RXD2: Indicator of data receiving
MENU key: Enter to next menu, enter main menu in measuring screen, and switch to next
parameter in setup menu.