ISO 19697:2016

INTERNATIONAL ISO
STANDARD 19697
First edition
2016-11-15
Ships and marine technology —
Navigation and ship operations —
Electronic inclinometers
Navires et technologie maritime — Navigation et opérations
maritimes — Inclinomètres électroniques
Reference number
©
ISO 2016
© ISO 2016, Published in Switzerland
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ii © ISO 2016 – All rights reserved

Contents Page
Foreword .v
Introduction .vi
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
4 Requirements . 3
4.1 General . 3
4.2 Functionality . 3
4.3 Information . 3
4.3.1 Actual heel angle and roll amplitude . 3
4.3.2 Roll period . 3
4.3.3 Roll peak hold value . 3
4.4 Display . 4
4.5 Alerts . 4
4.5.1 Operational alerts . 5
4.5.2 Functional alerts . 5
4.6 Interface . 6
4.7 Power supply . 6
5 Accuracy . 6
5.1 Actual heel angle, roll amplitude and roll period . 6
5.2 Acceleration condition . 6
6 Test methods and required results . 6
6.1 General . 6
6.2 Static actual heel angle test . 7
6.2.1 Method of testing and required results . 7
6.3 Dynamic actual heel angle test . 7
6.3.1 Method of testing and required results . 7
6.4 Long-term actual heel angle test . 7
6.4.1 Method of testing and required results . 7
6.5 Roll period test . 8
6.5.1 Method of testing and required results . 8
6.6 Connections to other equipment test . 8
6.6.1 Method of testing and required results . 8
6.7 Display test . 8
6.7.1 Method of testing and required results . 8
6.8 Operational alert test .10
6.8.1 Method of testing and required results .10
6.9 Functional alert test .11
6.9.1 Method of testing and required results .11
6.10 Roll peak hold value test .11
6.10.1 Method of testing and required results .11
6.11 Reset function of roll peak hold value test .11
6.11.1 Method of testing and required results .12
6.12 Power supply test .12
7 Installation position.12
8 Information .12
Annex A (informative) Relationship between transverse metacentric stability and
measured natural roll period of ships in waves .13
Annex B (informative) Test facility type test methodology .16
Annex C (informative) IEC 61162‑1 interface for VDR and other systems .17
Bibliography .19
iv © ISO 2016 – All rights reserved

Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www.iso.org/patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation on the meaning of ISO specific terms and expressions related to conformity assessment,
as well as information about ISO’s adherence to the World Trade Organization (WTO) principles in the
Technical Barriers to Trade (TBT) see the following URL: www.iso.org/iso/foreword.html.
The committee responsible for this document is ISO/TC 8, Ships and marine technology, Subcommittee
SC 6, Navigation and ship operations.
This first edition cancels and replaces ISO/PAS 19697:2014.
Introduction
An electronic inclinometer is an electronic device that provides information about roll period, roll
amplitude and the heel angle of the ship. Electronic inclinometers are intended to support the decision-
making process on board in order to avoid dangerous situations, as well as assist in and facilitate maritime
casualty investigation. The requirements in this document take into account human factors, ergonomic
principles and advances in technology.
vi © ISO 2016 – All rights reserved

INTERNATIONAL STANDARD ISO 19697:2016(E)
Ships and marine technology — Navigation and ship
operations — Electronic inclinometers
1 Scope
This document specifies the performance requirements, methods of testing and test results of electronic
inclinometers required by the performance standard, IMO resolution MSC.363 (92), in addition to the
general requirements contained in resolution A.694 (17) and is associated with IEC 60945.
The electronic inclinometers provide information about actual heel angle, roll amplitude, roll period
to support decision-making process on board in order to avoid dangerous situations, in stability
(see Annex A for information), as well as to assist in maritime casualty investigation. The electronic
inclinometers are mainly composed of a set of sensors, a signal processor, a display, an input device and
an interface to other systems.
It does not apply to the electronic inclinometers installed for purposes which are outside the scope of
this document, e.g. monitoring of cargo status.
Where a requirement in this document is different from IEC 60945, the requirement in this document
takes precedence.
NOTE All requirements that are extracted from the recommendations of IMO Resolution MSC.363 (92),
performance standards for electronic inclinometers, are printed in italics and the resolution and pa
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