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Navitron NT888G MK2 User Manual

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NAVITRON SYSTEMS LTD
NT888G MK2 AUTOPILOT
OPERATING MANUAL
17 The Tanneries
Brockhampton Lane
Havant, Hants, U.K. PO9 1JB
Registered in England No. 2607869
Tel: (023) 9249 8740
Fax: (023) 9249 8783
Int. Code: +44 23
Email: sales@navitron.co.uk
Web: www.navitron.co.uk
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Table of Contents

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Navitron NT888G MK2 Specifications

General IconGeneral
BrandNavitron
ModelNT888G MK2
CategoryAutopilot System
LanguageEnglish

Summary

Section 1: Short Operating Instructions

Control Unit Display Data & Initial Control Settings

Overview of control unit display and initial settings for operation.

Switching to Standby or OFF

Instructions for switching the autopilot system between standby and off modes.

Engaging Autopilot (ON)

Steps to engage the autopilot system and its control modes.

Adjusting Steering Performance (Manual Adjustment of Controls)

Guide to manually adjusting steering parameters like Rudder, Yaw, and Counter.

Matching Heading Steered with Heading Set

How the Autotrim function aligns steered heading with the set heading.

Avoiding Unnecessary Rudder Correction

Methods to reduce frequent rudder movements caused by yawing.

Altering to a New Heading

Procedures for changing the vessel's course using the autopilot.

The Rudder Limit Control

Setting the maximum permissible rudder angle for safe turns.

Programmable Automatic Rate of Turn (ROT) Control

Configuring automatic rate of turn during course changes.

Programmable Automatic Radius of Turn

Setting automatic radius of turn for course changes, requiring SOG data.

Adjusting Overshoot and Undershoot

Fine-tuning Counter Rudder settings to prevent over/undershooting the target heading.

Using the Track Function

Engaging and operating the track steering facility with external route data.

Cancelling an Audible Alarm

How to cancel or acknowledge audible alarms using the TEST key.

Testing Alarms

Procedure to test the autopilot's alarm system functionality.

Keypad Turns

Using keypad functions for U-Turn, Next Course, and step course changes.

The Controls Menu

Accessing and adjusting system parameters via the Controls Menu.

The Limits Menu

Accessing and adjusting system limits such as Rudder Limit and alarms.

The Remote Key

Enabling or disabling remote control stations and power steer inputs.

The Illumination Control

Adjusting display and keypad illumination levels.

The Cancel and Confirm Keys

Keys used for confirming or cancelling course changes and menu operations.

Using NT920NFU Dodge and Power Steer

Operating the NT920NFU Dodge and Power Steer functions.

Using NT990FU Power Steer Functions

Operating the NT990FU Follow Up Power Steer functions.

Using Proprietary Power Steer and Override Functions

Using third-party power steer and override controls with the autopilot.

Section 2: Operator Controls and Sea Trials

Operator Controls Overview

Details on Autopilot modes, menus, keys, and operational displays.

Sea Trials and Calibration

Procedures for sea trials, type selection, and performance calibration.

Adjustments and Settings

Configuration of rudder, turn rate, radius, alarms, track, and deviation settings.

Optional Units

Information on second station units and power steer control options.

Section 3: Display Messages, Alarms and Status Indicators

Displays at Power Up (Self Test)

Information shown on the control unit during the power-up self-test sequence.

Failure Messages at Power Up (Self Test Failure)

Displays indicating communication or interface errors during power-up.

Operational Display Messages

Explanation of various messages displayed during normal autopilot operation.

Alert Display Messages

Lists and types of alerts (warnings, alarms, cautions) generated by the system.

Alert Diagnostic Display

Accessing the diagnostic mode to trace fault conditions and engineering alarms.

Operational Status LED's

Meaning of the indicator LEDs on the autopilot control unit panel.

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