Key/Button

Description

1

GAIN

Setting gain. value

Press and hold both the ▲ and ▼ keys for three seconds. Once Automatic gain mode is selected.

The Automatic gain mode is cancelled by pressing the ▲ or ▼key.

2

RANGE

Setting depth range

Press and hold both the ▲ and ▼ keys for three seconds. Once Automatic range mode is selected.

The Automatic range mode is cancelled by pressing the ▲ or ▼

key..

3

FUNC

Please read 8.3 Func key

4

MENU/ESC

Open/Close the menu

Escape from currentoperation.

5

Cursor

Move in the menu list.

Set the level of adjustment

Move VRM marker.

6

MODE

Choose the screen to display.

7

ENTER

Choose and apply the menu. Open the next submenulist

8

MARK

Input waypoint.

9

ALARM ACK

Cancels the buzzer.

10

BRILL

Adjusts the screen brilliance.

11

PRINT

Starts printing.

12

POWER

Turn the power on/off