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Product Description
RA-2 Rudder Angle Transmitter
Product Introduction
The Rudder Angle Transmitter is a core electro-mechanical sensor designed to accurately measure and transmit the real-time angular position of a ship's rudder to onboard monitoring and control systems. Engineered for durability and precision in harsh marine environments, it serves as the essential feedback link between the physical rudder movement and the vessel's navigation instruments, ensuring safe and responsive steering.
Installed directly at the rudder stock or steering gear, this robust transmitter continuously converts mechanical rudder movement into a precise electrical signal—typically voltage, current, or digital format. This signal is then relayed to one or multiple receivers, such as rudder angle indicators on the bridge, autopilot systems, ECDIS, and voyage data recorders (VDR).
Built with marine-grade materials, the transmitter withstands constant vibration, shock, humidity, salt spray, and temperature extremes. Its sealed housing offers high ingress protection (e.g., IP66/IP67), ensuring long-term reliability. Available in various models (e.g., potentiometer-based, synchro, or non-contact magnetic encoder types), it provides flexibility to match different vessel requirements and system architectures.
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Technical Data
| Rudder transmitter | |
| Power | DC24V（+30%~-25%） |
| Indication Range | -40°~+40° |
| Sample resolution | 0.1° |
| Data transmitting rate | ≥5 times/s |
| Data output interface | RS485/CANBUS/ETHER |
| System Resolution | ≤0.1° |
| Environment Temperature | -15℃~+55℃ |
| Humidity | ≤93%(temperature range25℃~40℃) |
| Flush type and Wall type rudder angle indicator | |
| Power | DC24V（+30%~-25%） |
| Data input interface | Lsolated RS485/CANBUS |
| Digital display range | -40°~40°,3digit 0.56 inchred and green LED display |
| Digital display divsion value | 0.1° |
| Simulated Optical Column Display Range | -40°~+40° |
| Simulated Optical Column Display Division Value | 1° |
| Light Adjustment | panel buttons and external buttons.Digital display and simulated diaplay dimmer at thesame time. |
| Light Adjustment Range | 4 levels cycled/auto adjustment |
| Environment Temperature | -15℃~+55°℃(for indoors),-25℃~+70℃(foroutdoors) |
| Humidity | ≤93%(Temperature 25℃~40℃) |
| Three-sided rudder angle Indicator | |
| Power | DC24V(+30%~-25%) |
| Data input interface | Lsolated RS485/CANBUS |
| Digital display range | -40°~+40°,3 digital 1.2inch red(green)LED display |
| Digital display division value | 0.1° |
| Simulated Optical Column Display Range | -40°~+40° |
| Simulated Optical Column Display Division Value | 1° |
| Light Adjustment | panel buttonsand external buttons. |
| Light Adjustment Range | 4 levels adjustment/auto adjustment |
| Environment Temperature | 5℃~55℃(Installed indoors) |
| Humidity | ≤93%(Temperature:25℃~40℃) |
Key Features & Benefits:
1.High Accuracy & Repeatability: Delivers precise and consistent rudder position feedback for optimal steering control and autopilot performance.
2.Robust Marine Construction: Corrosion-resistant housing and internal components ensure reliability in demanding offshore and coastal environments.
3.Wide Compatibility: Outputs standard signals (e.g., 4-20mA, 0-10V, Resistor, or CAN/NMEA 2000) for seamless integration with indicators, autopilots, and bridge systems.
4.Easy Installation & Calibration: Designed for straightforward mechanical linkage and electrical setup, minimizing downtime.
5.Low Maintenance & High Durability: Engineered for continuous duty with minimal service requirements, reducing lifecycle costs.
6.Safety & Compliance: Provides critical data for navigation safety and supports compliance with classification society regulations.
As a vital component in any vessel's steering control chain, the Rudder Angle Transmitter enhances operational safety, improves maneuverability, and supports the seamless integration of modern bridge systems.
Rudder Angle Indicator
Rudder Angle Indicator Connection Diagram
