Lodestar GyroCompatt 6 integrates Sonardyne’s Wideband 2 acousticpositioning and Lodestar AHRStechnology in one small, highly versatile and robust instrument. This provides high update rate wirelessattitude, heading, heave, surge,sway, pressure, SV and acoustic positioning of any subsea object.Compatible with USBL and LBLpositioning systems, the Lodestar GyroCompatt 6 provides real time motion data for structure deployment via the integrated high speed acoustic modem.

The internal high capacity rechargeable battery pack enables quick charge times and up to 20 hours of continuous operation with the ability to turn the gyro on and off to save battery life giving over two months of transponder life.

The instrument is small and light enough to be ROV installed and a mechanical stab enables precision alignment to any structure.

 Structure position and orientation can be accurately determined during lowering, set-down and as-built surveys. Using the Lodestar GyroCompatt 6 for metrology delivers the measurements required for pipe-end coupling.

The stab, gyro and transducer are pre-aligned and this speeds up spot measurements as only single observations are required.

Autonomous logging negates the need for a vessel and ROV to be on standby taking measurement during long term settlement observations.

Feature

Depth rating                          3,000 Metres

Operating Temperature                -5°C to +40°C

External Battery Pack / ROV Supply    24V (18 – 50V)

Battery Life      Acoustic Navigation Standby           2 Months

                 Lodestar Permanently Powered On     20 Hours

Acoustic        Compatt 6   Operating Frequency     MF (19-36kHz) Sonardyne WidebandR 2

                             Transmit Source Level     185-192dB re 1μPa @ 1m (5 Levels)

                             Ranging Precision         Better than 15mm

                             Telemetry Protocol        Sonardyne SMS and Modem

                             Ranges Tracked           14 Simultaneous Replies

Lodestar AHRS    Heading         Range                     0-360°

                                   Accuracy                 0.1° Secant Latitude RMS

                                  Settle Time                <5 Minutes

                                 Follow Up Speed            500°/ Second

                                  Resolution                 0.01°

                 Roll and Pitch      Range                    ±180o (No physical limit)

                                   Accuracy                  0.01°

                                   Resolution                 0.01°

                Heave             Range                     ±99m

                             Accuracy (Real Time)        5cm or 5% (Whichever is the greater)

                                    Bandwidth                 User selectable

                                    Resolution                 0.01m