MD71TMC DATASHEET

MD71TMC DATASHEET

MD71TMC DATASHEET

Product catalog summary
Overview
The MD71TMC is an advanced Transmitting Magnetic Compass (TMC) System designed to convert a ship's magnetic compass heading into NMEA 0183 heading data with high accuracy. This system allows for the use of electronic remote displays, known as Compass Repeaters, instead of traditional optical apparatus.

Applications
The system provides digital NMEA heading output to drive a Heading Repeater, offering an elegant alternative to optical reflectors in magnetic compass installations.

Accessories
  • MD54 - Compass Sensor Adhesive Mount
  • MD58 - Compass Sensor Bracket Mount
  • MD71TB - Trunnion Bracket Kit for Display & Control Head
  • MD96JB/8 - Junction Box for power and data channels
  • MD94DDU - Data Distribution Unit for multiple Heading Repeaters

Related Products
  • MD97TMC - Standard Transmitting Magnetic Compass System
  • MD71EMC - Electro-magnetic Compass System

Features
  • Provides digital heading data from a ship's magnetic compass
  • High accuracy and intuitive controls
  • Automatic calibration and correction of magnetic deviation and variation
  • Sealed magnetic sensors compliant with IEC 60945
  • Bright OLED display for high contrast and wide viewing angles

Operational Specifications
  • Performance: ± 1.0° resolution
  • Accuracy: ≤ 0.5° after ADC
  • Display: 2.7” OLED, 128 x 64 pixels
  • Alarms: Audible sounder

Environmental Specifications
  • Operating temperature: -15°C to +55°C
  • Storage temperature: -25°C to +70°C
  • RoHS compliant
  • Compass safe distance: 50cm

Approvals
Conforms with IEC 60945 and IEC 61162-1 standards.

Additional Information
  • Supplied with panel mounting kit and data cables
  • Weight and dimensions vary by model
  • Power supply: 24 V dc, 6 W
  • Data output: 2x NMEA 0183 data channels

Physical and Electrical Specifications
  • MD71THD: Panel mount; optional trunnion
  • MD52A/B: Direct compass mountings
  • Finish: Jet Black (RAL9005) powder coat

Note
One sensor mount is required, available separately. The MD71THD Control and Display Unit can display heading in numeric form, but a dedicated Marine Data Heading Repeater is recommended for specific purposes.
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Catalog excerpts

MD71TMC DATASHEET-1

TRANSMITTING HEADING DEVICES / TMC SYSTEM MD71TMC TRANSMITTING MAGNETIC COMPASS SYSTEM - ADVANCED SKU: F071100 View Online › OVERVIEW The MD71TMC is a Transmitting Magnetic Compass (TMC) System which uses the latest technology to accurately process and convert the ship’s magnetic compass heading to NMEA 0183 heading data with unparalleled accuracy to one or more Heading Repeaters (Compass Provides Digital Heading Data from a Ship’s Magnetic Compass Repeaters) at any convenient location on a vessel. Unparalleled Accuracy and Intuitive Operator Controls periscopes etc.) to view the magnetic compass, electronic remote Correction of Magnetic Deviation and Variation TMC systems from Marine Data are simple and intuitive to use, with Automatic Sensor-to-Compass Calibration Magnetic Sensors Fully sealed to IEC 60945 Exposed Area Classification Industry Proven Design Bright OLED display provides high contrast and wide viewing angles Instead of using inflexible and bulky optical apparatus (reflectors, displays may be used in the form of a Compass Repeater. quick and easy installation and on-board calibration. Provides a digital NMEA heading output to drive a Heading Repeater (or other devices) at a convenient location An elegant alternative to using an optical reflector in a ship’s magnetic compass installation Increasingly, Maritime Authorities are accepting the use of Transmitting Heading Device (THD) Systems on board vessels. Marine Data offers two types of THD system: • A system which senses the angular position of a ship’s magnetic compass card; known as a Transmitting Magnetic Compass System (TMC) A system which directly senses the Earth’s magnetic field; known as an Electro-Magnetic Compass System (EMC) MD54 - Compass Sensor Adhesive Mount MD58 - Compass Sensor Bracket Mount MD71TB - Trunnion Bracket Kit for Display & Control Head MD96JB/8 - Junction Box to supply power and act as breakout box for 2x NMEA 0813 data channels MD94DDU - Data Distribution Unit to supply power and for feeding several Heading Repeaters RELATED PRODUCTS • MD97TMC - Standard Transmitting Magnetic Compass System

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MD71TMC DATASHEET-2

OPERATIONAL MD71THD: H 96; W 96; D 35 (mm); 0.50 kg MD97CSP: L 146; W 64; D 41 (mm); 0.35 kg MD52A/B: H 18; Ø 69 (mm); 0.12 kg Excludes cables & connectors <= 0.5° after ADC (depending on sensor) 2.7” (128 x 64 pixels); OLED - Yellow MD71THD: Panel mount; Trunnion (optional) MD52A/B: MD54 or MD58 Mountings direct to compass Audible sounder MD71THD: 15-way D-type plug; 9-way D-type socket; MD52A/B: Buccaneer™ type male MD97CSP: Buccaneer™ type female; 1x Gland Jet Black (RAL9005) Fine-texture Powder Coat Weight & Dimensions: Power Supply: Data Output: 2x NMEA 0183 Data Channels Data Sentences:...

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.