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Maintenance procedures
Preventive maintenance
Approved anti-fouling paints
The list of approved anti-fouling paints can be found on our website. Always refer to the manufacturer's documentation and data sheets for a complete procedure and for relevant safety information.

About this manual
The purpose of this publication is to provide the descriptions, procedures and detailed parameter explanations required to allow for safe and efficient use of the ST90 system. The publication also provides you with a thorough understanding of the parameters and adjustments provided by the ST90 system.
Simrad ST90
Operating procedures
Maintenance procedures
- Lowering and hoisting the transducer from the sonar room
- Setting up the interfaces to peripheral devices
- Inserting the installation parameters
- Installing and maintaining software
- Testing the noise conditions and the sonar functionality
- Preventive maintenance
  - Preventive maintenance schedule
    In order to secure a long and trouble-free operation of the ST90 system, certain specific preventive maintenance tasks must be done. The tasks are organized in a preventive maintenance schedule.
  - Requirements for personnel and tools
    All tasks can be done by the crew.
  - Approved anti-fouling paints
    The list of approved anti-fouling paints can be found on our website. Always refer to the manufacturer's documentation and data sheets for a complete procedure and for relevant safety information.
  - Preventive maintenance procedures
  - Accessing the inside of the installation trunk
User interface
Menu system
Functions and dialog boxes
Concept descriptions
Technical specifications
The technical specifications summarize the main functional and operational characteristics of the ST90 system. They also provide information related to power requirements, physical properties and environmental conditions.
Datagram formats
The ST90 system can send and receive information to and from several different peripherals. All transmissions take place as datagrams with data sentences. Each datagram has a defined format and length.
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Approved anti-fouling paints

The list of approved anti-fouling paints can be found on our website. Always refer to the manufacturer's documentation and data sheets for a complete procedure and for relevant safety information.

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Important:

Do not paint the transducer with traditional hull plating paint. Use only the correct type of approved paint specified.

Do not use high-pressure water, sandblasting, metal tools or strong solvents to clean the transducer face.