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Sensor Configuration
Learn how to configure the sensor settings.
About the Automatic Range Mode
The sensor has an automatic range mode that is useful to get better quality echograms when the trawl is close to the bottom.

Sensor Configuration
Learn how to configure the sensor settings.
- Connecting the Sensor to Mosa2
  To configure the sensor, you need to connect it to Mosa2 application, using either the Dock or the Configuration Cable.
- Battery Information
- About the Virtual Water Switch Option
  Mosa2 has a virtual water switch option that changes the conditions under which the sensor is running.
- Diagnostic Information
  Scala2 and Mosa2 applications warn the user in case of water ingress in the sensor.
- Configuring the Trawl Node
  You need to give a trawl node to the sensor. It is the number corresponding to the position of the sensor on the trawl.
- Configuring the Uplink Frequency and Power
  Configure the settings of the communication link between the sensor and the vessel.
- Sounding Modes
  The sensor sends echogram images to different directions depending on the application and sounding settings.
- Configuring the Echo Sounder
  You need to configure the echo sounder settings so that they correspond to the fishing conditions.
- About the Automatic Range Mode
  The sensor has an automatic range mode that is useful to get better quality echograms when the trawl is close to the bottom.
- Applying Offsets to Measurements
  You can apply offsets to temperature and depth measurements if the measured values do not correspond to the environment of the sensor.
- Testing Measures
  You can test the measures taken by the sensor (e.g. battery level, temperature, depth) to check that there are no faults.
- Memory Card Recording
  This topic explains the memory card recording feature (this feature is optional).
- Saving a Configuration on Mosa2
  You can save different configurations of the sensor to be able to quickly change the configuration when you change your fishing method.
- Exporting Sensor Configuration
  You can export the sensor settings you configured on Mosa2 on a file. You can afterward use this file when configuring a similar sensor.
- Importing a Sensor Configuration
  You can apply to a sensor a configuration that has already been made on another sensor.

About the Automatic Range Mode

The sensor has an automatic range mode that is useful to get better quality echograms when the trawl is close to the bottom.

Principle

Range influences the display of echogram images. The smaller the range, the shorter the listening time and the better the quality of images. But if you set a bigger range, data arrives slower which results in poorer image quality.

You can activate the automatic range mode if you need to get better quality echograms when the trawl is close to the bottom. This mode is recommended when bottom trawling.

The echogram can automatically switch to a 20-meter range when the distance to the bottom is less than 20 meters and to a 10-meter range when the distance is less than 10 meters.

The change of range depends on the settings configured on Mosa2.

Note: The sensor requires pitch and roll angles within -25°to 25° for automatic range operation.

Important: This mode is available only with Trident Down Looking application.

Mosa2 settings

The following Sounding Mode options must be set in Mosa2:

Automatic Range must be activated.
The Mode must be set to Down only.
The Trawl Opening:
- must be lower than 19 meters to be able to switch to a 20-meter range.
- must be lower than 9 meters to be able to switch to a 10-meter range.

Note: The trawl opening value sets the minimum distance to see inside the trawl. As a result, if the trawl opening distance is equal or higher than 19 or 9 meters, the sensor will not reduce the range respectively to 20 or 10 meters.

See Configuring the Echo Sounder for details about Mosa2 settings.