The purpose of a BNWAS

The purpose of a BNWAS Bridge Navigational Watch Alarm System is to monitor bridge activity and detect operator disability which could lead to accidents.

The system monitors the awareness of the Officer of the Watch (OOW) and automatically alerts another qualified OOW or the Captain if for any reason the OOW becomes incapable of performing the OOW\\\\\\\’s duties.

This purpose is achieved by a series of indications and alarms to alert first the OOW and, if he is not responding, then to alert another qualified OOW or the Captain. Additionally, the BNWAS may provide the OOW with a means of calling for immediate assistance if required.

The BNWAS should be operational whenever the ship\\\\\\\’s heading or track control system is engaged, unless inhibited by the Captain.

BW-800 BNWAS complies with following standards:

IEC 62616 (New standard from February 2010)

IMO MSC. 128(75) (Old recommandation from May 2002)

DNV Type Approval Statement on BW-800

The BW-800 BNWAS Bridge Navigational Watch Alarm System is now in the final process of obtaining the DNV Type Approval. 

DNV has carried out the performance test and we are now waiting for the final environmental test to be completed.

High quality and competitive prices

High quality and safety first are keywords for Uni-Safe Electronics, known for their short delivery time because the main products are always in stock. With customers in more than 35 countries, Uni-Safe Electronics are able to supply their goods to destinations all over the world at very short notice. BW-800 is produced in Denmark to ensure the high level of quality is maintained. BW-800 is designed as a cost effective product and it is easy to install which means low installation costs for the vessel owner. The small size of the units makes it easy to install on vessels with limited space for new equipment. Most of the systems are installed as retrofit when the vessel is sailing from one port to another or installed the next time the vessel is in dock. Normally, it is more cost effective to exchange an old dead man alarm with a new BNWAS than trying to upgrade the old system.


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