Anschütz Gyro Compass Standard 20 is a critical marine navigation instrument that determines true north independently of the earth's magnetic field. Proper service and maintenance, guided by the Anschütz Standard 20 Service Manual
, are essential for ensuring accurate heading signals and long-term reliability. Core Components of the Standard 20 The system is comprised of several high-precision modules: Gyro Compass Casing : Includes the outer sphere (Type 110-222). Gyrosphere
: The sensitive element (Type 111-006) that provides the north-seeking capability. Supporting Liquid
: A specialized fluid (Type 148-162) and distilled water (Type 148-398) used to suspend the gyrosphere. Electronic Units
: Control and operator units that process heading signals and perform speed-error corrections. Maintenance Intervals and Procedures
Regular servicing prevents equipment failure and ensures compliance with maritime regulations. Gyro Compass Equipment STD 20 Plus GG - Anschuetz anschutz gyro compass standard 20 service manual
The Anschütz Gyro Compass Standard 20 is a cornerstone of modern marine navigation, known for its reliability and precision in determining "true north". For technicians and mariners, the Service Manual is the definitive guide for maintaining this critical equipment. This article breaks down the essential sections of the manual, from installation to advanced troubleshooting. 1. Overview of the Standard 20 System
The Standard 20 system is modular, typically consisting of a gyro compass unit, a control unit, and an operator unit. Unlike magnetic compasses, it uses an electrically powered, fast-spinning gyrosphere to find true north by utilizing the Earth's rotation and gravity.
Key Components: Includes the gyrosphere (the core sensor), supporting liquid, distilled water, and a casing with an absolute digital pick-off system.
Operating Principles: It employs inductive and optical data transmission, which eliminates the need for wear-prone slip rings. 2. Installation and Initial Commissioning
Proper installation is the most critical phase for long-term accuracy. The Service Manual provided by Scribd highlights several key steps: Anschütz Gyro Compass Standard 20 is a critical
Gyrosphere Preparation: Before operation, the casing must be filled with a specific mixture of Supporting Liquid (Type 148-162) and Distilled Water (Type 148-398).
Power Requirements: The system typically operates on a 24V DC supply.
Safety Warning: Never put the equipment into operation without a built-in gyrosphere, as this can trigger immediate error messages and potential damage. 3. Routine Maintenance and Service Intervals
The service manual mandates regular checks to ensure the compass remains within its static accuracy of ≤ ±0.1° sec Lat.
Liquid Levels: Monthly checks of the supporting liquid levels are recommended to prevent overheating or sphere instability. Component Lifespan: Step 2 – Monthly Maintenance Routine
Gyrosphere: Typically requires replacement or overhaul every 3 to 5 years (MTBF >40,000 hours).
Electronic Boards: Often replaced every 6 years to prevent age-related failures.
Standstill Requirement: After switching off, the gyro rotors require 15–30 minutes to come to a complete stop. The unit must never be opened or moved during this rundown period to avoid damaging the gyrosphere. 4. Troubleshooting and Error Codes
When the system detects a fault, it displays specific error codes on the digital operator unit. Common issues identified in the Anschütz Technical Documentation include: www.navico-commercial.com Gyro Compass - Simrad Commercial
The service manual for the Anschütz Gyro Compass Standard 20 is a critical document for ensuring the optimal performance and longevity of the device. It contains detailed instructions for installation, operation, maintenance, and troubleshooting. The manual is designed for use by professionals who are responsible for the upkeep of navigation equipment on ships.