External Sensor Type

Combined with Wave Gauge Blue

External Pressure Sensors — Wave Gauge Blue

Technical Overview and Specifications

Description The External Pressure Sensors are precision, submersible transducers designed to operate with the Wave Gauge Blue Pressure Sensor Array option. These sensors extend the Wave Gauge Blue’s capability for directional and spatial wave measurements, capturing accurate subsurface pressure data for comprehensive wave height and directional analysis.
Design and Construction Each sensor employs a piezoresistive pressure sensing element housed in marine-grade 316L stainless steel or optional titanium for superior corrosion resistance. The sensors are fully sealed and rated for continuous submersion in ocean, coastal, or freshwater environments.
Data & Power Interface Communication and power are managed through a daisy-chain RS485 link, supporting multi-drop connectivity for multiple sensors on a single bus. The Wave Gauge Blue Battery Pack provides stable 12 VDC power and data synchronization across all connected sensors.
Image External Pressure Sensor

Figure: External Pressure Sensor connected to Wave Gauge Blue system

Technical Specifications

Sensing PrinciplePiezoresistive pressure transducer
Pressure RangeConfigurable — typically 0–5 psig or 0–10 psig (custom options available)
Accuracy±0.1% to ±0.5% Full Scale (model dependent)
Resolution12-bit effective resolution after on-board signal conditioning
Sampling RateUp to 30 Hz (synchronized with Wave Gauge Blue)
CommunicationRS485, half-duplex, daisy-chain compatible
Power Supply12 VDC, supplied from Wave Gauge Blue Battery Pack
Housing Material316L Stainless Steel (standard) / Titanium (optional)
Seal RatingIP68 — fully submersible
CableShielded marine-grade cable with waterproof connectors
Operating Temperature-10°C to +50°C (extended range optional)

Software and Manuals

User Manual

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User Guide

Guide

Pc Interface Software

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