837 Delta T Azimuth Drive

The Model 837 Delta T Azimuth Drive is a rugged and powerful rotary actuator drive that can be coupled to an Imagenex Model 837 or 837B Delta T Multibeam Profiling Sonar.  The two axes of rotation in this combined unit provide the capability to obtain accurate, high resolution range information in any direction.  In standard applications, profiles may be made in any direction by simply commanding the Azimuth Drive to rotate the attached profiling sonar anywhere in a circle.  The profiling sonar can then perform a cross-sectional scan before being rotated to a new azimuth angle.  The Azimuth Drive uses the same Ethernet communications line and command structure as the Delta T head.  A single, simple to use PC compatible computer program operates both.

837 Delta T Azimuth Drive

Underwater Hardware Specifications

Max. Operating Depth

300 m and
2000 m available

Max. Cable Length

Standard:  100 m on CAT5e

Cable length may be increased up to ~9000 m using an Ethernet extender. Please enquire for more information. 

Interface to PC

Standard:  10 Mbps Ethernet (10 BASE-T) using TCP/IP

Bit rate may vary if an Ethernet extender is in use.


Right angle, end mounted, 8 conductor, wet mateable
(Subconn MCBH8M-AS or MCBH8M-Ti)

Standard Accessories

Azimuth Drive to Sonar Head Interconnect Cable

Power Supply

22 – 32 VDC at 1 Amp max.


See drawing

Contact Imagenex for unit dimensions without P/U cover

Weight in Air


Weight in Water



300 m unit:  6061-T6 Aluminum & 300 Series Stainless Steel

2000 m unit:  Gr. 2 Titanium


Hard Anodize (No finish for 2000 m unit)

Software Specifications


Windows™ Operating System

Windows™ XP, Vista, 7, 8, 10

Azimuth Angle

0° – 359.7°, 0.3° increments

File Format

(filename).837, (filename).xyz, (filename).83a

Recommended Minimum Computer Requirements

2 GHz Pentium 4
256 MB RAM
20 GB Hard Disk
1024 x 768 screen resolution 

Ordering Information

300 m Unit


2000 m Unit


IP Address*

Option               -020

*Note:   Standard IP Address is
            A different IP Address may be specified upon ordering.

P/U Protective Cover

Option               -036

Patton Ethernet Extender

Option               -037

837 Delta T Azimuth Drive


  • Programmable
  • Continuous Rotation
  • Internal Pitch, Roll, & Heading Sensor
  • Suitable for Autonomous or Remote Deployment


  • 3D Precision Surveying
  • Sediment Transport Research
  • Marine Geology
  • Scientific Research

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