881A Imaging Narrow Beam
Using Serial communications, this all-in-one, high performance digital imaging sonar can exceed 35 shots per second on the 1 m range at a 2 mm range resolution, producing near-photographic image quality.
The 881A can operate with customized configurations or revert to default settings to match appropriate operating range scales.
In addition to the benefits of low power, a simple set-up and installation procedure make this powerful sonar an ideal tool for remotely operated platforms ranging from large work ROV’s to small inspection vehicles, as well as AUV and UUV applications.
Underwater Hardware Specifications
Frequency
675 kHz
Transducer
Imaging type, fluid compensated
Transducer Beam Width
0.75° x 20°
Range Resolution
1 m – 4 m: 2 mm (0.08”)
5 m & up: 10 mm (0.4")
Min. Detectable Range
150 mm (6")
Max. Operating Depth
1000 m
Max. Cable Length
1000 m on typical twisted shielded pair (RS-485)
Interface
RS-485 serial interface @ 115.2 kbps (or optional RS-232)
Connector
End mounted, four conductor, wet mateable (Subconn MCBH4M-AS)
Power Supply
20 – 36 VDC at less than 5 Watts
Dimensions
See drawing
Weight in Air
~2.6 kg (6 lbs)
Weight in Water
~0.9 kg (1.9 lbs)
Materials
6061-T6 Aluminum & Polyurethane
Finish
Hard Anodize
Software Specifications
Win881A.exe, Win881AL.exe
v3.03, v1.0.6.6
Windows™ Operating System
Windows™ XP, Vista, 7, 8, 10
Modes
Sector, Polar and Side Scan
Range Scales
1 m, 2 m, 3 m, 4 m, 5 m, 10 m, 20 m, 30 m, 40 m, 50 m, 60 m, 80 m, 100 m
Train Angles
Continuous rotation, 3° increments
Sector Size
Sector Mode: 0° – 180°, 3° increments
Polar Mode: 0° – 357°, 3° increments, or Continuous rotation
Step Sizes
Slow (0.3°), Medium (0.6°), Fast (0.9°), Faster (1.2°), Fastest (2.4°)
Grid Types
Polar and rectangular
File Format
(filename).81a
Recommended Minimum Computer Requirements
100 MHz Pentium
16 MB RAM
1 GB Hard Disk
800 x 600 x 256 colour graphics
Ordering Information
1000 m Unit
881-000-405
