MD61 RUDDER ANGLE SENSOR TRANSMITTER

DESCRIPTION

The MD61 Rudder Angle Transmitter is a Rudder Angle Transducer for providing steering indication. Mounted in the steering compartment, it transmits the vessel’s Rudder Angle to a Marine Data Rudder Angle Indicator. The input shaft is mechanically linked to the vessel’s rudder stock by a fully adjustable linkage rod (supplied).

The MD61 has dual outputs:

1. Digital NMEA 0183 and
2. Analogue Variable Voltage (via 5 KΩ geared potentiometer)

The Rudder Angle Transmitter is fully sealed and housed in a robust aluminium alloy enclosure. Finished in Window Grey semi-gloss paint to complement other marine navigation equipment.

The MD61 from Marine Data: flexible in application, easy to install and simple to maintain.

FEATURES

• Ship’s Rudder Angle Sensor and
Transmitter
• Digital NMEA 0183 Output (IEC 61162-1)
• Analogue Variable Voltage Output -5 KΩ Potentiometer
• Built-in Rudder Indication LEDs for easy set-up
• Fully Adjustable Rudder Linkage Rod
• Proven Rugged Design

APPLICATIONS

• Transmits Rudder Angle data to a Marine Data Rudder Angle
Indicator, VDR or Auto-Pilot at any convenient location

RELATED PRODUCTS

• MD94DDU – Data Distribution Unit with Dual NMEA Inputs for Dual
Rudder Installations 
• The complete range of Rudder Angle Indicators from Marine Data
• MD/RDI Rudder Indication System – Wheelmark Approved

SPECIFICATIONS

PHYSICAL

Weight: 4.0 kg (including rudder linkage rod)
Dimensions: H 125 mm; Ø 200 mm
Linkage Rod: Adjustment range 270 – 580 mm
Mounting: 4x M6 screws on 175 mm Ø (PCD)
Connections: 12-core captive cable, 2.5 m long
Construction: Aluminium alloy enclosure
Finish: RAL7040 Window Grey, semi-gloss

ELECTRICAL

Power Supply: 24 V dc nominal
Data Input: Mechanical Linkage to Rudder
Data Sentence: RSA: ($–RSA, x.x, a, x.x*hh)
Data Output: 1x NMEA 0183 (IEC 61162-1) 4800 Baud
1 x 5 KΩ potentiometer (volt free)
Red & Green LED Rudder Position Indicators

OPERATIONAL

Static Accuracy: ± 0.25° accuracy of rudder movement
Working Angular Range: ± 45°
Follow-Up Rate: >20° per second
Pot. Output: Midships Position = 2.5 KΩ ± 45° of rotation = 2.38 KΩ (approx.)
Indications:
Red LED = Steering to Port
Green LED = Steering to Starboard
Both LEDs = Midships Position (000°)

ENVIRONMENTAL

IP rating: IP65
Operating temp: -15°C to +55°C
Humidity: 0% to 100%
RoHS: Compliant
Compass: Safe Distance 50 cm

APPROVALS

Compliancy: IEC 60945; IEC 61162-1; ISO 20673
Type Approval: Wheel Mark (0098-14) when installed as part of the Marine Data Rudder Angle Indicator System

DATASHEET