ISO 9875:2023
Ships and marine technology — Marine echo-sounding equipment
This document specifies the minimum operational and performance requirements, methods of testing and test results of marine echo-sounding equipment required to comply with the performance standards adopted by the IMO Resolution A.224(VII) as amended by IMO Resolution MSC.74(69), Annex 4.
This document is intended to be used in conjunction with IMO Resolution A.694(17) and with IEC 60945.
For bridge alert management, IMO Resolution MSC.302(87) supersedes IMO Resolution MSC.74(69), Annex 4. Accordingly, this document incorporates references to IEC 62923-1 and IEC 62923-2 which are associated with Resolution MSC.302(87) for requirements and tests where applicable.
In accordance with IMO Resolution MSC.74(69), Annex 4, Articles 1 and 2, the purpose of echo-sounding equipment is to provide reliable information on the depth of water under a ship to aid navigation in particular in shallow water. This document is applicable for ship speeds from 0 kn to 30 kn.
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Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Abbreviated terms
5 Performance requirements
5.1 General
5.2 Functionality
5.2.1 Range performance
5.2.2 Range scales
5.2.3 Main display
5.2.4 Other displays
5.2.5 Pulse repetition rate
5.2.6 Roll and pitch
5.3 Multiple installation
5.4 Data storage
5.5 Accuracy
5.5.1 Accuracy of measurement
5.5.2 Discrimination
5.6 Malfunctions and alert and indications
5.6.1 General
5.6.2 Depth alarm
5.6.3 Failure or reduction in power supply ("power fail" alert)
5.6.4 System failure
5.7 Ergonomic criteria
5.7.1 Operational controls
5.7.2 Presentation of information
5.8 Design and installation
5.9 Interfacing
6 Methods of testing and required test results
6.1 General
6.2 General conditions of measurement
6.3 General underwater test conditions
6.4 Functionality
6.4.1 Range performance
6.4.2 Receiver sensitivity
6.4.3 Performance checks
6.4.4 Range scales
6.4.5 Main display
6.4.6 Other display
6.4.7 Pulse repetition rate
6.4.8 Roll and pitch
6.5 Multiple installation
6.6 Data storage
6.6.1 Method of test
6.6.2 Required result
6.7 Accuracy
6.7.1 Method of test
6.7.2 Required result
6.7.3 Discrimination
6.8 Malfunctions, alert and indications
6.8.1 General
6.8.2 Depth alarm
6.8.3 Failure or reduction in power supply
6.8.4 System failure
6.9 Ergonomic criteria
6.9.1 Operational controls
6.9.2 Presentation of information
6.10 Design and installation (test of environment and interference)
6.11 Interfacing
Annex A (informative) Sound absorption coefficient
Annex B (normative) Alerts definition for echo-sounding equipment
Annex C (normative) IEC 61162 interfaces
Bibliography
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Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Abbreviated terms
5 Performance requirements
5.1 General
5.2 Functionality
5.2.1 Range performance
5.2.2 Range scales
5.2.3 Main display
5.2.4 Other displays
5.2.5 Pulse repetition rate
5.2.6 Roll and pitch
5.3 Multiple installation
5.4 Data storage
5.5 Accuracy
5.5.1 Accuracy of measurement
5.5.2 Discrimination
5.6 Malfunctions and alert and indications
5.6.1 General
5.6.2 Depth alarm
5.6.3 Failure or reduction in power supply ("power fail" alert)
5.6.4 System failure
5.7 Ergonomic criteria
5.7.1 Operational controls
5.7.2 Presentation of information
5.8 Design and installation
5.9 Interfacing
6 Methods of testing and required test results
6.1 General
6.2 General conditions of measurement
6.3 General underwater test conditions
6.4 Functionality
6.4.1 Range performance
6.4.2 Receiver sensitivity
6.4.3 Performance checks
6.4.4 Range scales
6.4.5 Main display
6.4.6 Other display
6.4.7 Pulse repetition rate
6.4.8 Roll and pitch
6.5 Multiple installation
6.6 Data storage
6.6.1 Method of test
6.6.2 Required result
6.7 Accuracy
6.7.1 Method of test
6.7.2 Required result
6.7.3 Discrimination
6.8 Malfunctions, alert and indications
6.8.1 General
6.8.2 Depth alarm
6.8.3 Failure or reduction in power supply
6.8.4 System failure
6.9 Ergonomic criteria
6.9.1 Operational controls
6.9.2 Presentation of information
6.10 Design and installation (test of environment and interference)
6.11 Interfacing
Annex A (informative) Sound absorption coefficient
Annex B (normative) Alerts definition for echo-sounding equipment
Annex C (normative) IEC 61162 interfaces
Bibliography