GM-20/21

GM-20/21

GM-20/21

Product catalog summary
Introduction
The document introduces the GM-20/21 Small Gyrocompass, a product of TOKIMEC technology, designed for small commercial vessels and fishing boats. It offers the benefits of a gyrocompass at a reasonable cost, eliminating the inconveniences of conventional magnetic compasses.

Features
  • Compact Design: The GM-20/21 measures 228×321×377 mm, making it suitable for small vessels.
  • Low Power Consumption: The master compass consumes only 50 VA.
  • Ease of Operation: Direct reading and synchro output simplify use and enable low-cost autopilot steering.
  • Three Repeater Compass Circuits: Allows connection of up to three repeater compasses with a synchro amplifier.
  • Automatic Preset Startup: A 24-hour timer allows for automatic startup.

Specifications
  • Power Supply: AC 100/110, 1φ, 50/60 Hz, 60 VA for repeater compass; DC 24 V, 2 A for master compass.
  • Voltage Fluctuation: ±20%
  • Ambient Temperature: +50℃ to -20℃
  • North-seeking Accuracy: Within ±2°
  • Follow-up Accuracy: Within ±0.1°
  • Setting Time: Less than 4 hours
  • Mechanical Freedom: ±45°
  • Maximum Turning Follow Up Speed: Turning ratio of 10 sec/rev
  • Repeater: 90× synchro motor (3 circuits)

Additional Information
The GM-20/21 includes a master compass, static inverter, screen, and synchro amplifier, with respective weights of 8.0 kg, 7.5 kg, 0.1 kg, and 8.0 kg. The device can be mounted on a wall if the power supply unit is separated. Design and specifications are subject to change without notice.
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Catalog excerpts

GM-20/21-2

Small Gyrocompass GM-20/21 Now, thanks to the meployment of state-of-the-art TOKIMEC technology, even operatore of small commercial vessels and fishing doats can enjoy the advantages of a gyrocompass for heading reference-and do so at reasonable cost. Of course, as the specially designed GM-20/21 gives gyrocompass benefits, it also eliminates the inconveniences associated with conventional magnetic compasses. The GM-20/21 features a synchro output, which can be used to drive the companion TOKIMEC PR-1500 Steering Control for decidedly low cost autopilot steering. There's also an automatic preset...

 Open the catalog to page 2
GM-20/21-3

FEATURES SPECIFICATIONS Compact Design The GM-20/21 measures only 228 321 377 mm, so it can be easily installed on fishing boats and other small commercial vessels. Low Power Consumption Power consumption is only 50 VA (for master compass). Ease Of Operation Direct Reading And Synchro Output Direct reading simplifies use considerably, and synchro output provides forlow-cost autopilot steering. Three Repeater Compass Circuits Automatic Preset Startup A 24-hour timer permits automatic startup. Power Supply AC 100/110, 1 , 50/60 Hz, 60 VA (for repeater compass) DC 24 V, 2 A (with only master compass...

 Open the catalog to page 3

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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.