ISO 20673 pdf download Ships and marine technology — Electric rudder angle indicators
lf a display is used for presentation, confirm using documented evidence that the equipment complieswith IEC 62288.
Unless otherwise stated in this document, all the tests shall be carried out according to the requirementsof lEC 60945.The manufacturer shall determine which components of electric rudder angle indicatorswill be protected or exposed,as defined in IEC 60945.
The calibration test shall be carried out in accordance with 5.2 and shall satisfy the requirementsspecified therein.
The damping test shall be carried out in accordance with 5.3 and shall satisfy the requirementsspecified therein.
6.5 Power supply fluctuation test
The power supply fluctuation test shall be carried out in accordance with 5.4 and shall satisfy therequirements specified therein.
lf the equipment under test is capable of raising an alert, confirm using documented evidence that theequipment complies with IEC 62923-1 and IEC 62923-2.
lf the indicator system provides an interface facility, it shall meet the requirements prescribed inIEC61162-1,IEC61162-2 or IEC61162-450.
Marking and identification
Each unit of the indicator system shall be marked with the following:—identification of the manufacturer;
equipment type number or model identification number under which it was type tested;serial number of the unit.
8.2Compass safe distance
Each unit shall be marked with the minimum safe distance from a magnetic compass (for bridgeinstallation).The safe distance shall be measured in accordance with IEC 60945.
The manufacturer shall provide adequate equipment documentation to enable competent members of aship’s crew to operate and maintain the equipment efficiently.