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Impact Subsea ISM3D Underwater AHRS providing Heading , Pitch & Roll


Impact Subsea are proud to present the ground breaking ISM3D family of Underwater Attitude and Heading Reference System (AHRS) Sensors.

Highly Robust, compact and lightweight, the ISM3D is ideal for ROV, AUV and other underwater Heading, Pitch and Roll applications.

With a selectable Inertial Mode, the ISM3D Heading is highly resilient against temporary magnetic interference.

The ISM3D utilises MEMS based Accelerometers, Angular Rate Gyroscopes and Magnetometers.
The outputs from each sensor are processed by an advanced fusion algorithm to provide highly stable and accurate Heading, Pitch and Roll.

Product Details
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  • Heading: Provides Heading to ±1°of Local Magnetic North.
  • Pitch & Roll: Provided to ±0.07° accuracy.
  • Titanium Housing: Robust & depth rated to 6,000m.
  • Acetal Housing: Low weight & depth rated to 1,000m.
  • seaView Software: Configure sensor, view & log data.
  • Emulate Any Device: Direct replacement of existing equipment.

HEADING

  • Accuracy: ± 1° of Local Magnetic North
  • Resolution: 0.1°

 

ATTITUDE

  • Pitch: ± 90°
  • Roll: ± 180°
  • Accuracy: 0.07°
  • Resolution: 0.01°

COMMS & POWER

  • Digital: RS232 & RS485
  • Protocol: 4800 to 115,200 baud
  • Data: Continuous or on demand
  • Data Rate: Up to 250Hz
  • Input Voltage: 7 to 32V DC
  • Power: 45mA @ 24V DC

PHYSICAL

  • Depth Rating: 6,000m (Titanium), 1,000m (Acetal)
  • Temperature -10 to 50°C Operation, -20 to 70°C Storage
  • Connector: Subconn MCBH8M-SS Other options available
  • Weight (Air/Fresh water): 0.33/0.225kg (Titanium), 0.20/0.10kg (Acetal)
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  • Auto Heading
  • Motion Reference Unit ( MRU )
  • ROV & AUV Heading & Attitude
  • Equipment Deployment Monitoring
  • Replacement for Flux Gate Compass
  • Replacement for Magnetically Slaved Gyro