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“headline”: “Nanjing Ninglu Technology Marine Navigation Systems: Echo Sounders, Speed Logs, BNWAS & NMEA Buffers Guide”,
“description”: “Engineering manual covering Nanjing Ninglu Technology bridge systems: DS2008/DS228 IMO navigational echo sounders, AM706 tanker-compliant anemometers, DS99 Doppler speed logs, EI330 electronic inclinometers, BW508 BNWAS, and NMEA 918S buffer distributors.”,
“datePublished”: “2026-10-04T11:00:00+04:00”,
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{“@type”: “Thing”, “name”: “Doppler Speed Log”},
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{“@type”: “Thing”, “name”: “Nanjing Ninglu Technology”}
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“@type”: “Question”,
“name”: “What are the primary features of the Ninglu DS2008 IMO navigational echo sounder?”,
“acceptedAnswer”: {
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“text”: “The Ninglu DS2008 is a 10.4-inch color TFT LCD navigational echo sounder certified under IMO Resolution MSC.74(69) Annex 4 and ISO 9875. It supports dual frequencies (50 kHz / 200 kHz), stores 24 hours of depth history, and outputs isolated NMEA 0183 sentences ($SDDBT, $SDDPT) for VDR and ECDIS.”
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“name”: “Why is the Ninglu AM706 anemometer series specified for oil tanker vetting?”,
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“text”: “The Ninglu AM706 series satisfies strict tanker vetting standards (including ExxonMobil MESQAC guidelines). It features solid-state ultrasonic or heated sensors, isolated 4–20 mA current loop outputs, 10-minute gust averaging, and high-wind threshold alarm contacts.”
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A field engineering manual covering Nanjing Ninglu Technology (Ninglu Tech) bridge systems—DS2008/DS228 IMO navigational echo sounders, AM706 tanker-compliant anemometers, DS99 Doppler speed logs, EI330 electronic inclinometers, BW508 BNWAS, and NMEA signal distribution networks.
Standards: IMO MSC.74(69) • ISO 9875 • IEC 60945 • MED Wheelmark
Service Desk: 24/7 Rapid Port Attendance across UAE & India
1. Navigational Echo Sounders: Ninglu DS2008 & DS228
Certified under IMO Resolution MSC.74(69) Annex 4 and ISO 9875, the Ninglu DS2008 features a 10.4-inch color TFT display supporting dual-frequency hydroacoustic transducers (50 kHz for deep ocean and 200 kHz for shallow port approaches). It logs 24 hours of depth history and outputs isolated NMEA 0183 depth strings ($SDDBT, $SDDPT) to VDR and ECDIS systems. The compact 8-inch Ninglu DS228 provides identical acoustic fidelity for workboats and tugs.
2. Tanker-Compliant Wind Instruments: Ninglu AM706 Series
Meeting OCIMF SIRE 2.0 and ExxonMobil MESQAC tanker vetting standards, the Ninglu AM706C (circular LED compass rose) and AM706US (ultrasonic solid-state sensor) provide continuous true/apparent wind tracking, 10-minute gust averaging, and isolated 4–20 mA current loop outputs for terminal cargo operations.
3. DS99 Doppler Speed Log & EI330 Inclinometer
- Ninglu DS99 Doppler Log: Uses a 2.0 MHz acoustic Doppler transceiver to measure Speed Through Water (-10 to +40 kts) with a retractable bottom gate valve for afloat servicing.
- Ninglu EI330 Electronic Inclinometer: Fulfills mandatory carriage under SOLAS V/19.2.12 for bulk carriers and container ships (≥ 3,000 GT), streaming dynamic roll period, heel angle, and roll amplitude to the VDR.
4. BW508 BNWAS & Isolated NMEA Buffers
The Ninglu BW508 BNWAS guards bridge officer alertness with 3-stage escalation alarms. The Ninglu NMEA918S (1-in / 8-out) and NMEA917S (2-in / 16-out) buffer distributors feature 2.5 kV optical isolation, safeguarding bridge networks from electrical ground loops.
Authored by Lead Marine Electronics Engineer • Seanav Marine
Providing Ninglu echo sounder transducer testing (SIM990/999), Doppler speed log calibrations, and BNWAS surveys across Dubai, Jebel Ali, Fujairah, and India.
