Type NT921WA

The NT921 WA Watch Alert System is a robust and intelligent monitoring device which provides a reliable low cost backup facility for busy – and often short handed non SOLAS rated vessels (Workboats / Commercial Fishing / Wind Farm Support Units etc. The alert period can be operator specified as required for periods between 3 & 12 minutes and the system includes an emergency call facility to summon any remotely located crew members should immediate assistance be required.

The chosen time interval (3 – 12 mins) is security protected by means of key switch selection as is the operating mode which may be set:

• Permanently ON
• Permanently OFF
• AUTO mode (automatically activated by power up of other equipment such as Autopilot / Track Control system etc)

Once activated, completion of the specified timeout period (3 – 12 mins) will automatically generate a Bridge visual alarm (15 secs) followed by a Bridge audible alarm (15 secs) which is tone and volume adjustable during installation.

Alarm cancellation and commencement of a new timing period will occur whenever the WA ‘Reset’ button is operated on the main unit or when other Wheelhouse / Bridge located Resets (or optional Movement Detectors) are activated.

Failure to ‘Reset’ the system during the 30 second Bridge visual / audible alarm period will result in automatic Crew Call Alarm activation at remote locations.

In the event of a sudden crisis situation requiring immediate Wheelhouse backup, the NT921 WA also features an ‘Emergency Call’ facility which may be operated at any stage of the timing cycles.