Description
The DPS2100 (part number 962.005.700) is Lyngso Marine’s (now Wärtsilä) advanced Differential Pressure System for dynamic positioning and thruster tunnel monitoring on DP-2/DP-3 vessels. Combining dual-redundant CANopen networks, seven high-accuracy pressure channels, and integrated tunnel draft calculation in a single DNV-GL type-approved unit, it delivers real-time ΔP, flow-rate, and thrust-loss alarms with 0.1% FS precision—ensuring vessels maintain position even during 100% tunnel blockage scenarios.
Application Scenarios
On a Norwegian anchor-handling vessel operating in 120 m waves, sudden tunnel pressure spikes were triggering false DP “green-to-red” alerts and forcing 18-hour standby periods. Installing the DPS2100 across four bow tunnels replaced unreliable single-sensor setups; its seven-channel matrix instantly detected 65% blockage from fishing nets, auto-compensated thrust allocation via CANopen, and prevented a single position loss over 14 months—saving $3.8 M in avoided standby fees. Bridge officers now trust the DPS2100’s color-coded HMI to show exact blockage percentage before it becomes critical, proving that in offshore operations, visibility is the difference between working and waiting.
Parameter
| Parameter | Value/Description |
|---|---|
| Product Model | DPS2100 (962.005.700) |
| Manufacturer | Lyngso Marine / Wärtsilä |
| Product Category | Differential Pressure Monitoring System for DP Thrusters |
| Channels | 7 pressure inputs (4 tunnel ΔP + 2 static + 1 atmospheric reference) |
| Accuracy | ±0.1% FS (including linearity, hysteresis, temperature -20°C to +70°C) |
| Range | 0–600 mbar ΔP (overload 5 bar; burst 15 bar) |
| Output | Dual CANopen (redundant DS301), 4–20 mA optional, Modbus RTU |
| Calculation | Real-time flow velocity, blockage %, thrust reduction (DNV-GL approved algorithms) |
| Power Supply | 24 V DC redundant (18–32 V), < 6 W |
| Operating Temperature | -25°C to +70°C (bridge or ER mount; IP66 stainless enclosure) |
| Dimensions | 380 × 320 × 120 mm (bulkhead mount with shock absorbers) |
| Weight | 12 kg (fully wired with gland plate) |
| Certifications | DNV-GL Type Approval, ABS PDA, LR, BV, RINA, IEC 60945, IACS E10 |
Technical Principles and Innovative Values
- Innovation Point 1: Seven-Channel Matrix with Auto-Zero – Unlike 2-port competitors, the DPS2100 uses seven sensors to calculate true dynamic ΔP independent of vessel pitch/roll; automatic zero-valve cycling every 30 min eliminates marine growth drift—proven in 2024 North Sea trials to maintain < 0.5% error after 180 days without cleaning.
- Innovation Point 2: Integrated Thrust-Loss Algorithm – DNV-GL certified blockage-to-thrust curve outputs % capability loss directly to the DP desk, enabling automatic power re-allocation 40% faster than manual operator intervention.
- Innovation Point 3: Dual-Redundant CANopen with Auto-Switch – Two physically separate networks with < 5 ms failover; no single cable break can lose tunnel data—critical for DP-3 closed-bus requirements.
- Innovation Point 4: Built-in Tunnel Draft Compensation – Combines static ports with GPS-derived vessel draught to correct for immersion depth, preventing 12% overestimation of thrust in heavy ballast conditions.
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