Installation manual

Modes of operation

850--160138 / A

2.8 270°/Vertical

This mode is specially made for purse seining, where the

verticalhalfsliceisdisplayedinthelowerleftcornerfornormal

setting of the net on starboard side. If the net is selected to be

set on the port side, the vertical half slice will be displayed in

the lower right--hand corner.

Figure 7 - 270°/Vertical

With this presentation mode, it will be easy to keep the best

contact with a school in both the vertical and horizontal

presentation, and to determine the size distribution of the

school. The position of the school relative to the bottom is

another important information in the presentation.

Figure7showsatypicalexampleofaseinecatchsituation.The

horizontal presentation shows the seine circle and the course

line of the target and the ship. The upper square marker

indicates the position where the net was shot, and the lower

square marker indicates the half net position.

The slice shows a detailed presentation of the school and the

bottom.Thelowerdottedlineindicatesthetotalnetdepth,and

the vertical line to the left indicates the sinking depth of the

net.

The catch data page for purse seining is selected in the menu

field. In addition to showing all the net data relative to the

targetandthebottom,thispagealsoshowsallavailabletarget

data. A detailed description of this catch data page is given in

chapter 5.26 in section Operation.