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Display Configuration
Read this section to know how data are displayed on Scala and how to change their display.
Customizing the Display of Data
Sensor Numerical Data
Data such pitch and roll, temperature, depth can be displayed in dials, gauges, history plots or text format.
Displaying Twin Trawl Spread
You can display a diagram of twin trawl spread in order to see the distance between the port and starboard doors, and between the clump and port/starboard doors. This way, if the trawl is asymmetric you can adjust accordingly and see live results very easily.

Display Configuration
Read this section to know how data are displayed on Scala and how to change their display.
- Control Panels
- Sensor Data
- Ownship & Trawl Data
- Data Estimation
- Receiver Data
- Creating Data Pages
- Managing Windows
- Customizing the Display of Data
  - Echograms
    Echograms are a representation of what is detected by the sensors with the acoustic signals.
  - Zooming on Timestamp and Distance Scale
    In echograms and history plots, you can zoom in and out on the distance scale and timestamp and move them along.
  - Sensor Numerical Data
    Data such pitch and roll, temperature, depth can be displayed in dials, gauges, history plots or text format.
    - Display Types
      You can choose between different types of display when you drag numerical data to a page.
    - Changing the Display of Page Elements
      You can change the title, font, unit of measure and arrangement of data displayed on pages.
    - Displaying Catch Monitoring
      You can be alerted when the codend is full.
    - Displaying Single Trawl Spread
      If you have a trawl with door sensors, you can display a plot to see the distance between the trawl doors. For twin trawls, you can also see the distance between both doors and the clump.
    - Displaying Twin Trawl Spread
      You can display a diagram of twin trawl spread in order to see the distance between the port and starboard doors, and between the clump and port/starboard doors. This way, if the trawl is asymmetric you can adjust accordingly and see live results very easily.
  - 3D Views
    You can display 3D views of different elements from the system, for example the trawl doors or trawl speed sensors.
  - Displaying a Position Marker
    You can place a marker on plots and echograms to display the GPS position at a given time on the timestamp.
- Setting an Alarm on Incoming Data
  You can be alerted by an alarm when data received have a given value.
- Changing the Default Units
  You can change the default units of data displayed in Scala.
- Recording and Replaying Data
  Data received by Scala can be replayed with Scala Replay application.

Displaying Twin Trawl Spread

You can display a diagram of twin trawl spread in order to see the distance between the port and starboard doors, and between the clump and port/starboard doors. This way, if the trawl is asymmetric you can adjust accordingly and see live results very easily.

Before you begin

You must be in Customize mode to do this task.
You need to have twin trawls and door sensors with dual or triple distance option.

Procedure

If you have twin trawls with 2 measured distances, drag to the page the Spread Master Distance to Stbd, then drag Distance to Clump above the plot of the distance to starboard. Right-click the plot and click Vertical.
Distances between the port door and starboard door and between the port door and clump are displayed.
If you have twin trawls with 3 measured distances: drag to the page one spread distance such as a Spread Master Distance to Stbd, then right-click the plot and click Twin Trawl Spread Plot.
You now have an history plot and a diagram displaying the distance between:
- port door and starboard door,
- port door and clump,
- clump and starboard door.
You can know if the clump is centered when the yellow dashed line is above the red and green lines.
Note: Right-click the diagram and click Single Trawl Spread Plot if you need to switch to single trawl.
You can also find the diagram for triple distance in the control panels: click Customize, then drag the Twin Trawl Spread Diagram to the page.
The diagram is displayed.

What to do next

Deactivate the Customize mode when you have finished customizing pages: click Menu

> Customize again.