The Rudder Angle Indication System (RAIS) is used to display the direction and angle of a vessel's rudder blade. Its working principle is as follows: the rudder angle transmitter converts the rudder blade angle signal into an electrical signal and sends it to the connection and distribution unit; the connection and distribution unit transmits the rudder angle information to each location where rudder angle display is required; and the indicating unit with a pointer then displays the rudder angle and direction. Rudder angle indicating units are normally installed in the steering gear room, engine control room, bridge, port and starboard wings, etc.
The HLD-RAIS 100 is a newly designed, fully digital rudder angle indication system. It converts all rudder angle information into standard IEC 61162 sentences for transmission between modules, and complies with relevant IMO regulations. It can be installed on various passenger and cargo ships, providing the crew with the current rudder angle and direction to assist in steering operations.
| Performance Standards: Complies with ISO 20673-2007, IMO | EMC/EMI: IEC 60945 Ed.4.0 (2002) | Power Supply:
Main power AC110/220 V, 50 Hz |
| Language: English | Interface:
Up to 8 rudder angle indicators; 1 × volt-free alarm contact for | Scale Range: ±35°, ±45° or ±65°; |
| Accuracy: Better than 0.5° | Damping Time: < 3 s |
| Type: HLD-RTU100 | Size/mm (L X W X H): 188x120x80 | Weight /kg: 4 |
| Installation: Wall mounting | Protection: IP56 |
| Type: HLD-CDU100 | Size/mm (L X W X H): 340x235x120 | Weight /kg: 8 |
| Installation: Flat mounting | Protection: IP22 |