BNWAS Installation & Support – India & UAE

BNWAS ensures bridge personnel remain alert while navigating, especially in autopilot mode. SEANAV supplies, installs, and maintains IMO-compliant BNWAS systems, including the reliable Ninglu BW508 model.
We handle installation, integration, alert testing, crew training, and maintenance for vessels across India, UAE, Singapore, Egypt, Oman, Qatar, and Bahrain.

Our BNWAS Services Include:

  • IMO-compliant BNWAS Installation (New & Retrofit)
  • Supply and Setup of Ninglu BW508 Units
  • Integration with Autopilot and Alarm Panels
  • Alert Delay Time Configuration
  • Annual Performance Testing & Certification
  • Bridge Watch Alarm Function Training

Key Features of Ninglu BW508 BNWAS

  • 3-Stage Alarm System (Officer, Backup, General)
  • Adjustable Alert Delay: 3–12 Minutes
  • Multiple Reset Units (Bridge, ECR, Cabins)
  • Failsafe Operation & Power Backup Circuit
  • Digital LCD Display with Configuration Menu
  • Data Logging Function for PSC Review

Complete BNWAS Solutions

BNWAS Installation & Cabling

Certified installations with autopilot and navigation bridge integration for vessels of all sizes.

Ninglu BW508 Programming

We configure all BW508 parameters including delay settings, reset unit mapping, and testing protocols.

Alarm Testing & Reset Station Setup

Watch reset points installed on bridge, officer cabins, and common spaces for full compliance.

Frequently Asked Questions (FAQs)

  • 1. What is BNWAS?
    BNWAS (Bridge Navigational Watch Alarm System) monitors bridge activity and ensures the officer on watch is alert, especially during autopilot operation.
  • 2. Is BNWAS mandatory?
    Yes. It is required under IMO MSC.128(75) and SOLAS Chapter V for all vessels above 150 GT, depending on the vessel’s keel-laying date.
  • 3. What is Ninglu BW508?
    It’s a type-approved BNWAS unit offering 3-stage alarm alerts, flexible reset units, and clear LCD control for maritime use.
  • 4. How does a BNWAS work?
    It requires periodic confirmation (via reset buttons). If not received, it escalates alarms from bridge to backup personnel to general crew areas.
  • 5. Where are reset points installed?
    On the bridge, officer cabins, engine control room (ECR), and other manned spaces based on vessel layout and regulation requirements.
  • 6. Can BNWAS be connected to autopilot?
    Yes. It must interface with the autopilot to automatically activate when the ship is in auto-steering mode.
  • 7. Can you replace an old BNWAS?
    Yes. We perform BNWAS retrofits and replacements with Ninglu BW508 and other compliant models.
  • 8. How is the alarm delay set in BW508?
    Using the control unit menu, delay can be set from 3 to 12 minutes in accordance with operational preferences and flag state rules.
  • 9. What is the power supply requirement?
    Ninglu BW508 operates on 24V DC and includes internal backup in case of main power failure, ensuring fail-safe operation.
  • 10. Where do you offer BNWAS services?
    We provide onboard BNWAS setup and servicing across India, UAE, Egypt, Oman, Singapore, Qatar, and Bahrain.