BOTTOM LINE UP FRONT (BLUF)
Seanav Marine provides 24/7 emergency attendance, annual performance checks, and transducer replacement for commercial navigation echo sounders across JNPA (Nhava Sheva), Mumbai Port, Mundra, Kandla, Chennai, Visakhapatnam, and Kochi Port. We service Furuno (FE-700/FE-800), JRC (JFE-380/680), Skipper, and Samyung systems, resolving missing bottom echoes, acoustic noise, thermal printer defects, and shallow-water alarms with rapid port mobilization.
SOLAS Chapter V Navigation Depth Sounder Maintenance
Accurate under-keel clearance data is critical for commercial shipping. Seanav Marine tests transmit pulse power, inspects hull sea-chests and transducer tanks, verifies draft offsets, and ensures full NMEA depth data logging into bridge ECDIS and VDR systems.
50/200 kHz Transducer Testing
Acoustic impedance testing, ceramic ring resistance measurements, and cavitation damage checks.
Draft & Keel Offset Calibration
Verification of depth below transducer (DBT), depth below surface (DBS), and depth below keel (DBK) offsets.
IMO 12-Hour History Compliance
Testing digital memory storage and thermal chart recorder mechanisms to satisfy mandatory IMO MSC.74(69) standards.
ECDIS & VDR NMEA Data Interfacing
Verification of isolated serial RS-422 $SDDPT and $SDDBT telegram outputs feeding electronic chart displays.
Request Echo Sounder Engineer in India
24/7 technical dispatch across all berths and anchorages in India.