PT 7, Ch 9, Section 4.1. states that alarms associated with navigation equipment are to be both audible and visual and are to be centralized for efficient identification. Repeater displays may be fitted on the bridge wings and at other appropriate positions on the bridge where necessary.
Section 4.1.2 states that the following alarms are to be provided:
•    Closest point of approach (CPA)
•    Shallow depth
•    Waypoint approaching (if automatic track following is used)
•    Off-course
•    Off-track (if automatic track following is used)
•    Steering alarms
•    Navigation light failure alarms
•    Gyrocompass failure
•    Watch safety system failure.
•    Failure of power supply to distribution panels

M/S MERSol is equipped with multiple alarm panels located at the MNC. These alarm panels include a central panel, dedicated GMDSS alarm panel, and a dedicated steering gear alarm panel. Alarms are triggered on individual pieces of equipment/machinery before being relayed to one of the alarm panels. Individual equipment will sound an alarm based on the parameters set by the OOW or Master, not all alarms trigger at a static value. For exam-ple, the OOW can decide which under keel clearance value should trigger the alarm on the echo sounder. A similar example is that the OOW can de-cide which distance should trigger an alarm for CPA, depending on multiple variables. There are certain static alarms related to the navigation lights, steering gear, and general equipment failure. For example, an alarm is re-layed to the GMDSS alarm panel when a distress alert is received via Inmarsat-C. In conclusion, all applicable alarms as stated in section 4.1.2. are sounded on the bridge. Further requirements to the exact selection of alarms can be found in part 5, 6, and 7 of Lloyd's Register Rules and Regulations - Rules and Regulations for the Classification of Ships, July 2022.

Last modified: Monday, 20 March 2023, 10:11 PM