MD69BR Datasheet

MD69BR Datasheet

MD69BR Datasheet

Product catalog summary
Overview: The MD69BR is a dual scale NMEA-based heading repeater designed for celestial and terrestrial bearings. It features a 36:1 precision dual scale compass card display, allowing digital heading data to be displayed at any location on a vessel. It offers various mounting options and is fully sealed to IEC 60945 standards, making it weatherproof and suitable for exposed areas.
Applications: The MD69BR repeats the heading display of a ship’s magnetic or gyro compass and can be used with the MD69AZI Azimuth Sight or MD69BC Bearing Circle for celestial and terrestrial bearings. The MD60A2K Telescopic Alidade is recommended for detailed azimuth measurements.
Features: The repeater is weatherproof, has a dual scale 36:1 precision dial display, and automatically selects and prioritizes NMEA heading data types. It indicates loss of valid heading data and detects previously lost data types without a reset. It supports true/magnetic source indication and has local and remote dimming control.
Physical Specifications: The device weighs 7.0 kg and has dimensions of H 164 mm, W 325 mm, with a body diameter of 246 mm. It is constructed from an aluminum alloy enclosure with a semi-gloss powder coat finish. Mounting options include gimbal & trunnion, pelorus stand, and bulkhead bracket.
Electrical Specifications: The power supply is 24 V dc with a nominal power of 8 W. It accepts RS422 NMEA 0183 data input with automatic baud rate detection. Data sentences include HDT, HDG, and HDM.
Environmental Specifications: The device operates in temperatures from -25°C to +55°C and is RoHS compliant. It meets various military and IEC standards for shock, vibration, EMC, thermal, and noise.
Approvals: The MD69BR conforms to multiple BS EN and IMO resolutions and has DNV type approval.
Operational Performance: The device offers a resolution of ± 0.01° and a follow-up rate of 20° per second. It features a dual scale rotating dial display with blue LEDs for true heading and yellow for magnetic heading. The outer scale is marked at 1°, 5°, 10°, and 45°, while the inner scale is marked at 0.1° and 1°. It includes an LED array for illumination with dimming control and error indication through dial oscillation.
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Catalog excerpts

MD69BR Datasheet-1

COMPASS & HEADING / BEARING REPEATERS MD69BR TRUNNION MOUNT BEARING COMPASS REPEATER SKU: F069018 View Online › OVERVIEW The MD69BR is a dual scale NMEA-based heading repeater designed for taking celestial and terrestrial bearings. Equipped with a 36:1 precision dual scale compass card display, digital heading data may be conveniently displayed at any suitable location on a vessel. With a range of mounting options and accessories, the MD69BR may be bulkhead, surface or stand mounted. Fully sealed to IEC 60945 Weatherproof Marinised Bearing Repeater Exposed Area Classification and includes weatherproof terminal box. Dual scale 36:1 precision concentric dial display application, easy to install and simple to maintain. Automatic selection and prioritisation of NMEA heading data type Automatic indication of loss of valid heading data Automatic detection of a previously lost heading data type without requiring a reset True / Magnetic Source Indication Local and Remote dimming control Fully sealed to IEC 60945 Exposed Area Classification The MD69BR Bearing Repeater from Marine Data: flexible in Repeats the heading display of a ship’s magnetic or gyro compass at a convenient location on a vessel Allows celestial and terrestrial bearings to be taken when used in conjunction with the MD69AZI Azimuth Sight or the MD69BC Bearing Circle. The MD60A2K Telescopic Alidade is recommended for making detailed azimuth measurements RELATED PRODUCTS MD69/21 - Bearing Compass Repeater Pelorus Stand Assembly MD69/22 - Bulkhead Mounted Bearing Compass Repeater

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MD69BR Datasheet-2

7.0 kg (optimally balanced for Azimuth Sight) H 164 mm W 325 mm; Body Ø 246 mm Outer dial Ø 185 mm; Inner dial Ø 95 mm Verge ring 20 mm (visible) Follow-Up Rate: Gimbal Action: Gimbal & Trunnion (standard); Pelorus Stand and Bulkhead Bracket options available Dual scale 36:1 rotating dial display Heading LEDs: Blue = True Heading; Yellow = Magnetic Heading Outer scale marked at 1°, 5°, 10° & 45°; Inner scale marked at 0.1° & 1° LED array with local & remote dimming control; red tint Error Indication: Loss of valid data: Dial oscillates ±35° about the last known good heading Multicore cable through...

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