Maintenance and Troubleshooting
Read this section for troubleshooting and maintenance information.
- Checking Noise Interference
  Use the spectrum analyzer to check the noise level of the hydrophones and check for interference.
- Charging the Sensor
  Charge the sensor at any battery level with either Marport Dock charger, Basic Sensor Charger or Medusa II Multi-charger.
- Cleaning the Sensor
  You need to regularly clean the sensor for proper performance.
- Maintenance Checklist
  We recommend you to follow this maintenance schedule for better performance and to avoid any trouble with the equipment.
- Troubleshooting
  Learn how to solve common problems.
- Support Contact
  You can contact your local dealer if you need maintenance on your Marport products. You can also ask us at the following contact details:

Scantrol application does not receive speed measurements

You have a system configured as a twin trawl and put only one trawl in water. Scantrol does not receive anymore speed measurements from the speed sensor.

Scala2 2.10.x and later: If the system is configured to operate on a twin trawl with one speed sensor on each trawl, but only one trawl is put in water: make sure that the speed sensor in water is the one from the first trawl, configured with a node between 10 and 13. If not, Scala2 will not send any speed measurements.