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AlphaMidicourse

AlphaMidicourse

AlphaMidicourse

Product catalog summary
Overview: The AlphaMidiCourse is a high precision, type-approved gyrocompass designed for merchant vessels. It is notable for its ease of installation, minimal maintenance requirements, and compatibility with existing ship systems through peripheral equipment like repeaters and converters.
Features: The gyrocompass provides accurate heading data against the geographical meridian for latitudes up to 70° and vessel speeds up to 50 knots. It compensates for roll and pitch angles up to ±45° and includes automatic speed error correction and temperature drift compensation. The device is characterized by its small size, high reliability, and dynamic accuracy.
Control Unit: The control unit facilitates the operation of the AlphaMidiCourse, displaying critical information such as heading, latitude, speed, and alarms. It integrates with ship cabling for data aggregation and supports multiple transmission formats for heading information distribution.
Repeaters and Accessories: The AlphaLine Repeater displays heading information and is available in various sizes and configurations. Accessories include mounting brackets, repeater stands, and azimuth circles for astronomical observations.
Data Distribution: The NMEA distribution module ensures signal distribution to multiple listeners with galvanic isolation to prevent interference. Multiple modules can be connected for extensive output capabilities.
Advanced Gyro Element: Derived from aerospace technology, the gyro element features low RPM for reduced wear and increased lifespan, requiring no oil changes and minimal servicing.
Bridge Alert Management: An optional annunciator unit can be integrated to comply with Bridge Alert Management systems, enhancing alert prioritization and handling for safe ship operation.
Technical Specifications: The gyrocompass supports speeds from 0 to 50 knots, with a follow-up speed of over 75°/sec and a settling time within 3 hours. It offers high accuracy and repeatability, with a service life of 35,000 hours. The main unit weighs 23 kg, and the control unit weighs 7 kg.
Installation: The gyrocompass is typically installed below decks near the ship's center of motion to minimize errors. Repeaters are strategically placed throughout the vessel for optimal heading information distribution.
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Catalog excerpts

AlphaMidicourse-1

>ILPHMR#N Marine AlphaMidiCourse High precision and dynamic gyrocompass

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Features The AlphaMidiCourse is a reliable, type-approved gyrocompass for merchant vessels. This gyrocompass is easy to install and requires little maintenance since there's no fluid inside. Alphatron Marine can also supply all peripheral equipment such as repeaters and converters to ensure compatibility with existing installations. • Small size and versatility • Automatic speed error correction • Short initial settling time (within 3 hours) • High reliability • High static and dynamic accuracy1 • Easy installation and adjustment • Built-in testing facility • No compass fluid or extra cooling...

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AlphaLine Repeater The AlphaLine Repeater displays range provides a heading repeater connectable to gyro, magnetic and GPS compass showing the ship’s heading information. This advanced compass repeater has an analog moving compass card and fixed line. The LCD information screen displays in 5-inch (horizontal and vertical), 6.5-inch and 8.4-inch digital course trend, alarm and rate of turn. Next to the heading repeater we have a more advanced heading+ instrument available, that, in addition to the ship’s heading information, shows an extended scale with accurate analog representation in tenths...

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A range of accessoires are available for the AlphaMidiCourse. Repeater compass The repeater compass receives and displays the ship’s heading signal transmitted from the master compass. The case is made of Glass fiber Reinforced Plastic (GRP), thus corrosion free and has a waterproof construction, suitable for open deck installation. Repeater stand The repeater stand (height of 1330 mm) can be used when a repeater compass is installed on the deck. Mounting bracket The mounting bracket for the repeater compass has a gimbal ring to support the repeater compass horizontally when the ship is rolling...

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Advanced gyro element The high precision dynamically tuned gyroscope and gimbal suspension is derived from aerospace technology and is now available to the marine industry. • Unique technology without annual servicing • No oil change • Very low RPM reduces wear, increasing life time • Quick installation Microproccesor control board Sensitive element Gimbal Horizontal control board Phantom ring Shock absorbers Stepper board circuit Sliding contacts Inverter board The optional annunciator unit can be connected to the AlphaMidiCourse to comply to Bridge Alert Management system (BAM). It harmonizes...

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Installation Unlike a magnetic compass, it can output without influence of the steel hull, the heading signal to repeaters around the vessel at critical positions. The gyrocompass is typically located below decks as close as possible to the center of roll, pitch and yaw of the ship, minimizing errors caused by the ship’s motion. Repeaters are located at convenient places throughout the ship, such as at the helm for steering, in after steering for emergency steering, and other places. Bearing repeaters installed on the bridge wing used for taking bearings will likely be equipped with removable...

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Tech Specs Main unit Weight 23 kg (50.7 lbs) 0 to 50 knots Follow up speed >75°/sec Settling time within 3 hours Settle point accuracy <±0,3° Dynamic accuracy <±0,5°/sec Settle point repeatability <±0,2°/sec Service life 35.000 hours Control unit Weight 7 kg (15.43 lbs) 1x step; 24V DC, 6 steps/° 4x serial data; RS422/485 Serial data transfer rate; IEC61162-1/2 (4800/38400 bps) 24V backup supply Failure/alarm; NO relay/NC relay Power 24V DC, 70W AlphaLine Repeater (option) 3803.0242 (grey), 3803.0244 (black) Weight 1.23 kg (2.71 lbs) 4 display sizes available Alarm signal loss (audible/visual)...

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Houston, Rotterdam, Singapore, Tokyo Product and/or specifications could change without notice © All rights reserved, JRC/AM -15.12/112/2

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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.