Seatex DPS 132
The Kongsberg Seatex DPS132 is a DP‑grade GNSS receiver providing high‑accuracy position data for dynamic positioning systems, supporting GPS, GLONASS and Galileo constellations.
Inspector Detail
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Common issues
- Antenna cable or connector degradation causing signal dropout or increased position noise
- GNSS signal jamming or spoofing in certain operating areas affecting position integrity
- Multipath interference from nearby structures or masts degrading position accuracy
- Firmware or configuration desynchronisation between multiple DPS units feeding the DP system
- Antenna icing or physical obstruction affecting satellite tracking
- Loss of differential correction service, where used, reducing positional accuracy below DP requirements
Inspection checklist
- Check antenna mounting, cabling and connectors for corrosion or damage
- Verify satellite tracking count and signal-to-noise ratio against baseline
- Cross-check position output between independent GNSS references per the vessel's DP FMEA requirements
- Confirm differential correction service status and age of corrections, if used
- Check firmware version and configuration against the vessel's approved DP setup
- Test alarm/status outputs to the DP control system
- Inspect the antenna for physical damage, icing or fouling
Service intervals
| Antenna and cable visual inspection | typically every dry-docking or annually |
| Firmware/configuration review | per maker's update schedule and the vessel's DP change management procedure |
| Full position-accuracy function test | typically as part of DP annual trials for DP-classed vessels |
Typical wear limits
| General note | Not a mechanically wearing item in the conventional sense; condition is monitored through signal quality, tracking count and position-accuracy trend rather than a dimensional wear limit |
Ranges are typical for this design class. Always confirm against the manufacturer documentation for your serial number.
Critical spares
- GNSS antenna assembly
- Antenna cable/connector set
- Receiver unit - order the exact current unit via Kongsberg; do not assume interchangeability across DPS product generations
Safety
- Not a high-energy or pressure system; the main risk is loss of a position reference during DP operations - treat as safety-critical for station-keeping rather than a personnel hazard item
- Antenna work at height requires standard working-at-height precautions
- Undetected single-point failure of one GNSS reference can silently degrade DP redundancy - rely on the DP system's cross-check alarms, not visual inspection alone
Class survey
Reviewed under the vessel's DP notation requirements (e.g. DP2/DP3): position reference systems must be tested for independence and accuracy at DP annual trials, and changing the GNSS receiver type typically requires an FMEA proving trial update.
Components & Design
Component data being added…
Technical Data
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Common failures & inspection points
Service & Maintenance
Critical DP sensor. Redundancy with other position references required.
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