Koden CVS-872D, Installation Manual

Page: 101 / 112

CVS-872D Chapter 2 Adjustment
0092607062-01 2-3
2.3 Setup of Bottom Limit
If the Bottom Limit is designated, the depth
shallower than the designated water depth is
not detected as sea bottom.
TD Setting - Bottom Limit HF
TD Setting - Bottom Limit LF
To set Bottom Limit.
1. Press .
2. Select [TD Setting] - [Bottom Limit XF].
3. Press [
] of .
The setup box of [Bottom Limit XF] will be
displayed.
4. Press [▲] and [▼] to set a depth.
5. Press to close the menu.
2.4 Setup of Draft Set
Correct - Draft Set
This is to set the depth between the sea
surface and the depth of transducer instated.
Normally, it is the draft of the boat to be
installed.
(Setting range: except for ft: - 10.0 to 10.0, in
ft: - 30.0 to 30.0)
1. Press .
2. Select [Correct] - [Draft Set].
3. Press [ ] of .
The setup box of [Draft Set] will be
displayed.
4. Press [
▲] or [▼] to set a draft.
5. Press to close the menu.
2.5 Setup of Gain (TD) for
transducer
Correct
– Gain (TD)
It corrects the attenuation due to the depth
of ultrasonic waves and adjusts the
accuracy of sea bottom detection.
This correction prevents to identify
incorrectly of the seabed for large fish
schools and to identify incorrectly of the
seabed for position deeper than the actual.
This setting does not need to be changed if
the TD installation is done properly.
1. Press .
2. Select [Correct]
– [Gain (TD)].
3. Press [ ] of .
The screen will turn to the gain (TD)
adjustment screen and displays the
gain (TD) setup box at the upper side of
the screen.
4. Setup the Gain (TD) by turning the gain
knob, which are lighted red or green, at
the side to be adjusted.
When a red square mark appears at right
side upper corner of the Gain (TD) setup
box, the red lighted gain knob shall be
operated. When there is a green square
mark, turn the green lighted gain knob.