Eusonar Praktik 6 Pro 2, Руководство пользователя

Страница: 20 / 37

20
Fleet water mode is intended for use in shallow water (2 meters or less). In this mode the
sonar provides the sounding of water by acoustic signals of very low power. It allows avoiding re-
reflected signals and receiving more reliable and understandable information on the display. The
sensitivity adjustment (with the right button) will also operate. At a depth of 2 meters the device
can measure the depth, but the high sensitivity cannot be achieved.
ATTENTION! In the fleet water mode the fish identification does not work (the contours
of the fish are not drawn when it appears in the beam zone). The sonar operates as in the Pro
mode, that means the display shows unprocessed information. On default in the fleet water mode
the dead end is adjusted as 50 cm.
DEMO mode
In the DEMO mode it is possible to check operating capacity of the sonar in the open air.
For this it is necessary to turn on the sonar, once more press the right button (exit to the MENU)
and with the left button choose the DEMO mode. Then to press the right button 4 times to scroll
through the settings and to exit to the standard operating mode. Further on it is required to hold
the sensor cable at a distance of 0,5-1,0m from the hard surface, e.g. from the floor. When the
sensor stops rolling the even strip of “the bottom” will be drawn and precise distance from the
floor in centimeters will be shown on the indicator. With slow lowering or lifting of the sensor
“the depth” will change.
Working capacity in the open air is recommended to perform with maximum sensitivity,
although with good reflection average one is enough. In DEMO mode the fish identification
mechanism does not work as the beam in the air is very narrow (about 5degree), and it is difficult
to register the signal reflected from the floor with this beam geometry, to say nothing of registration
of the echo-signals from other objects.
The device is considered to be in working capacity if by the method described above it will
be possible to register surely the distance between the sensor and the floor 1m or more. If down to
one meter the depth is not registered (zeros on the screen) the device has weak capacity (problems