BNWAS
medium
Bridge Navigational Watch Alarm System. SOLAS-mandatory for all vessels ≥150 GT. 3-stage alarm: visual → audible → backup officer alert.
Known Models (7)
AMI Marine BNWAS
3-stage alarm
· Navigation Data / Sensor
stages: 3
imo_approved: True
Common Failures:
- • Sensor quality
- • Limited service network
- • Configuration complexity
Service: Budget BNWAS. IMO approved.
Spares: AMI Marine: Ersatzteile per Hersteller-Netzwerk. Lead time: 1-4 Wochen. Backup-Systeme an Bord pflichtgemäß.
Alphatron AlphaBridge BNWAS
3-stage alarm
· Navigation Data / Sensor
stages: 3
imo_approved: True
Common Failures:
- • System bus dependency
- • Sensor detection range
- • Alarm escalation timing
Service: Part of Alphatron AlphaBridge. Can also operate standalone.
Spares: Alphatron: Ersatzteile per Hersteller-Netzwerk. Lead time: 1-4 Wochen. Backup-Systeme an Bord pflichtgemäß.
Consilium Salwico BNWAS
3-stage alarm
· Navigation Data / Sensor
stages: 3
imo_approved: True
Common Failures:
- • Motion sensor sensitivity drift
- • Reset button membrane wear
- • Alarm relay failure
Service: Widely installed BNWAS. Sensor placement important for reliable detection.
Spares: Consilium: Ersatzteile per Hersteller-Netzwerk. Lead time: 1-4 Wochen. Backup-Systeme an Bord pflichtgemäß.
JRC JBN-95
3-stage alarm
· Navigation Data / Sensor
stages: 3
imo_approved: True
Common Failures:
- • Sensor zone coverage gaps
- • Alarm timer adjustment issues
- • Indicator LED failure
Service: JRC BNWAS. Integrates with JRC bridge alarm system.
Spares: JRC: Ersatzteile per Hersteller-Netzwerk. Lead time: 1-4 Wochen. Backup-Systeme an Bord pflichtgemäß.
Kelvin Hughes BNWAS
3-stage alarm
· Navigation Data / Sensor
stages: 3
imo_approved: True
Common Failures:
- • Integration with bridge alarm panel
- • Sensor reliability
- • Configuration complexity
Service: Part of Kelvin Hughes bridge offering.
Spares: Kelvin Hughes: Ersatzteile per Hersteller-Netzwerk. Lead time: 1-4 Wochen. Backup-Systeme an Bord pflichtgemäß.
Netwave NW-BNWAS
3-stage alarm
· Navigation Data / Sensor
stages: 3
imo_approved: True
Common Failures:
- • Sensor positioning critical
- • Power supply issues
- • Alarm circuit board failure
Service: Good value BNWAS. Often sold with VDR package.
Spares: Netwave: Ersatzteile per Hersteller-Netzwerk. Lead time: 1-4 Wochen. Backup-Systeme an Bord pflichtgemäß.
SAM Electronics BNWAS
3-stage alarm
· Navigation Data / Sensor
stages: 3
imo_approved: True
Common Failures:
- • Integration with NACOS
- • Standalone operation limitations
- • Wärtsilä transition
Service: Part of SAM/Wärtsilä NACOS bridge offering.
Spares: SAM Electronics: Ersatzteile per Hersteller-Netzwerk. Lead time: 1-4 Wochen. Backup-Systeme an Bord pflichtgemäß.