HAIN Subsea 7000 System

Hydroacoustic Aided Inertial Navigation Package

System benefits:

• precise, smooth and accurate positioning
• higher position update rate
• precise and accurate depth
• precise and accurate orientation (heading, roll and pitch)
• precise and accurate velocity estimate in 3D
• estimation and compensation of sensor errors
• much better QC and QA
• easily used with NavLab post-processing for even better accuracy, precision and integrity.

The package is supplied with:

• Subsea MGC^® R3 IMU/Processing module
• Nortek DVL1000 - 4000 m Doppler Velocity Log
• Paroscientific Digiquartz^® Depth sensor
• Survey APOS computer which enables independent HiPAP^®, cPAP^® and Subsea HAIN operations from the vessels ROV/Survey area.

The computer includes the following enabled APOS software functions:

• CYMBAL (requires HiPAP^® X81/X82 transceiver unit)
• SSBL Fast Track
• LBL ROV, vessel and transponder positioning
• Interface to cPAP^® ROV transceiver unit
• Subsea HAIN.

Survey APOS computer specifications:

• 8-port serial card: 4 x RS-232 and 4 x RS-422/485
• Ethernet ports: Net A, B and C
• Dimensions (L x W x H): 425 x 425 x 185 mm; Weight: 17 kg.
• Power: 90-132 / 180-264 V ac, 80 W.

Subsea MGC^® R3 IMU/Processing module specifications:

• Heading accuracy (GNSS aided): 0.04° RMS (secant latitude)
• Dynamic accuracy roll & pitch: 0.01° RMS
• Dynamic accuracy heave: 5 cm or 5 % (whichever is highest)
• Angle random walk: 0.008 ° / sq. root hour
• Bias repeatability: 330 micro g (1 Sigma)
• Dynamic range (Accelerometers): ±30 g

Housing connector types: SubConn (1 x 16-pin and 3 x 8-pin):

• Connection to topside: Ethernet 10 Mbit
• Interface to DVL and Depth sensor
• 1 PPS signal output.
• 24 VDC (20–32V input range), 200 W
• Titanium housing, depth rated to 7000 m (Nortek DVL1000 to 4000 m)
• Length, diameter: 368 mm / 584 mm (with Nortek DVL1000), 187 mm
• Weight in air/water (without DVL): 20 kg /12.5 kg.

Notes: The package can be supplied without DVL and/or Depth Sensor. The Seatex MGC-R3 is a Non-ITAR product.