Rotax® underwater angular position sensor
HomeSubsea componentsDredging sensorsSubsea Rotation Sensors

Subsearotation sensors

Accurate angular position measurement in underwater environments

Overview

Subsea rotation sensor range designed to withstand harsh operating conditions

Rotax® subsea angle transmitters represent a complete range of sensors able to perform highly accurate measurement of rotations and rotation angles in underwater environments. A high level of robustness, combined with high accuracy and the potential for substantial customization, explains why the application of this sensor range to a wide variety of mission-critical subsea equipment has greatly satisfied our customers over the years.

Our subsea angle transmitters come in many models. In addition to the most popular range (illustrated below), we are able to supply virtually any kind of subsea rotation sensor suited for your case and requirements. Next to the delivery of stand-alone sensors, we can deliver full-fledged subsea monitoring systems, including all related systems such as mechanics, software, electronics, and controls.

Typical applications
  • Rotax® sensors can be applied to a wide variety of dredging, offshore, and subsea equipment, such as backhoe, hopper and cutter dredgers, cranes, ROVs, winches, and monitoring systems.
Key features
  • Robust design
  • High accuracy
  • Highly customizable
Applied to
  • 1500+ Rotax sensors® delivered in 160 different configurations
  • All Seatools ROVs for Boskalis, Van Oord, DEME, and Jan de Nul
  • Numerous subsea monitoring systems

During the selection process, we consult clients to ensure they opt for the right Rotax® sensor. In our recommendation we take into consideration measurement range, required accuracy, system setup, data communication, mounting possibilities, vibrations, and other factors that are relevant to your case.

Key Features

  1. Robust design

    Rotax® subsea angle transmitters are able to withstand the most extreme of conditions, such as shock loads and vibrations that occur during dredging operations.

  2. Highly accurate

    Rotax® subsea angle transmitters have been applied to subsea monitoring systems on numerous occasions, facilitating for very high system accuracies.

  3. Highly customizable

    All Rotax® subsea rotational sensors can be configured to fit your application and requirements. This shows from the fact that 160 different configurations have been delivered to date. Adjustments can be made with variations in data communication, mounting options, overload protection, measurement range settings, required quality standards and classifications, and more.

Rotax subsea angle transmitter

Other Features

  • Durable design
  • Single turn and multi-turn
  • Various mounting options
  • Overload protection (optional)
  • Overcurrent protection (optional)

Rotax® Sensor Range

OVERVIEW OF MOST POPULAR MODELS

  • Depth rating (msw)
  • Allowable axial / radial load (kN)
  • Dimensions (mm)
  • Rotation angle (°)
  • Interface
  • Depth rating (ft)
  • Allowable axial / radial load (lbf)
  • Dimensions (inch)
  • Rotation angle (°)
  • Interface

Rotax® HD

Subsea rotary encoder
  • Depth rating (msw)3000
  • Allowable axial / radial load (kN)5 / 6 (static)
  • Dimensions (mm)165 x 150 x 150
  • Rotation angle (°)0 - 350
  • InterfaceAnalog (4-20 mA)
  • Depth rating (ft) 9842
  • Allowable axial / radial load (lbf) 1124 / 1349 (static)
  • Dimensions (inch) 6.50 x 5.91 x 5.91
  • Rotation angle (°) 0 - 350
  • Interface Analog (4-20 mA)

Rotax® HD short

  • Depth rating (msw)100
  • Allowable axial / radial load (kN)5 / 6 (static)
  • Dimensions (mm)123 x 150 x 150
  • Rotation angle (°)0 – 360 or n * 360
  • InterfaceSSI, CANBUS
  • Depth rating (ft) 328
  • Allowable axial / radial load (lbf) 1124 / 1349 (static)
  • Dimensions (inch) 4.84 x 5.91 x 5.91
  • Rotation angle (°) 0 – 360 or n * 360
  • Interface SSI, CANBUS

Rotax® Compact

  • Depth rating (msw)3000
  • Allowable axial / radial load (kN)0.175 / 0.25 (static)
  • Dimensions (mm)106 x 85 x 85
  • Rotation angle (°)0 – 360 or n * 360
  • InterfaceSSI, CANBUS, analog (4 - 20 mA)
  • Depth rating (ft) 9842
  • Allowable axial / radial load (lbf) 39 / 56 (static)
  • Dimensions (inch) 4.17 x 3.35 x 3.35
  • Rotation angle (°) 0 – 360 or n * 360
  • Interface SSI, CANBUS, analog (4 - 20 mA)

Rotax® UNI 115 HD

  • Depth rating (msw)0
  • Allowable axial / radial load (kN)1.5 / 2 (static)
  • Dimensions (mm)200 x 140 x 140
  • Rotation angle (°)0 – 360 or n * 360
  • InterfaceAll analog and bus protocols possible
  • Depth rating (ft) 0
  • Allowable axial / radial load (lbf) 337 / 450 (static)
  • Dimensions (inch) 7.87 x 5.51 x 5.51
  • Rotation angle (°) 0 – 360 or n * 360
  • Interface All analog and bus protocols possible

Multimedia

Bracket for flange mounting of Rotax subsea rotation sensor
Bracket for flange mounting of Rotax subsea rotation sensor
Rotax subsea angle transmitters applied to underwater monitoring system
Rotax subsea angle transmitters applied to underwater monitoring system
Rotax underwater rotary position sensor applied to survey ROV frame
Rotax underwater rotary position sensor mounted on a tensioner
Rotax for determining angular position of submerged motor
Rotax mounted to determine angular position of submerged motor
Bracket for flange mounting of Rotax subsea rotation sensor
Rotax subsea angle transmitters applied to underwater monitoring system
Rotax underwater rotary position sensor applied to survey ROV frame
Rotax for determining angular position of submerged motor

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