Raymarine Heading Sensor User guide
Heading Sensor
Owner’s
Handbook
Document number: 81124_3
Date: 1st May 2001
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Copyright © Raymarine Limited 2001
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i
Preface
Important information
WARNING
Although your Heading Sensor is designed to give accurate and
reliable performance, it should serve only as an aid to navigation
and should never lead to the erosion of good seamanship. Always
maintain a permanent watch and be aware of situations as they
develop.
EMC conformance
All Raymarine equipment and accessories are designed to the best
industry standards for use in the leisure marine environment.
The design and manufacture of Raymarine equipment and accessories
conform to the appropriate Electromagnetic Compatibility (EMC)
standards, but correct installation is required to ensure that performance
is not compromised.
Handbook information
To the best of our knowledge, the information in this handbook was
correct when it went to press. However, the Raymarine policy of
continuous product improvement may change product specifications
without notice. Consequently, unavoidable differences may occur
between the product and the handbook from time to time, for which
Raymarine cannot accept liability
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Preface
Contents
Important information .......................................................... i
WARNING ......................................................................... i
EMC conformance ............................................................. i
Handbook information ....................................................... i
Chapter 1: Introduction ......................................................... 1
1.1 Handbook information ................................................ 1
1.2 Description .................................................................. 1
Chapter 2: Maintenance & Fault Finding ............................ 3
2.1 Servicing and Safety ................................................... 3
2.2 Maintenance ................................................................ 3
2.3 Fault Finding ............................................................... 4
Assistance .................................................................... 4
Chapter 3: Installation........................................................... 5
3.1 Before you Begin ........................................................ 5
Components ................................................................. 5
Basic Installation Tools ............................................... 5
EMC Installation Guidelines ....................................... 5
Suppression Ferrites .............................................. 6
Connections to Other Equipment ........................... 7
3.2 Siting the Heading Sensor ........................................... 7
3.3 Installation Procedure ................................................. 8
3.4 Connection Procedure ................................................. 9
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Chapter 4: Calibration ......................................................... 11
4.1 Introduction ............................................................... 11
EMC Conformance ................................................... 11
4.2 Continuous Deviation Correction ............................. 11
4.3 Heading Alignment ................................................... 12
Heading Sensor Specification ............................................ 15
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1
Chapter 1: Introduction
Chapter 1: Introduction
Thank you for purchasing a Raymarine product. We are sure your
Heading Sensor will give you many years of trouble-free operation.
This Heading Sensor is designed to provide reliable performance, even
under the most demanding conditions.
D5505-1
1.1 Handbook information
This handbook contains important information on the installation,
calibration and maintenance of your Heading Sensor. Please read the
handbook thoroughly, so that you get the best results from this product.
1.2 Description
The Raymarine Heading Sensor consists of an oil-filled sphere
suspended in a custom built “swing bracket”, together with associated
electronics.
The Heading Sensor transmits magnetic compass heading data to
equipment that is NMEA 0183 compatible, such as radars, RayData
displays, and RayPilot autopilot systems.
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Chapter 2: Maintenance & Fault Finding
Chapter 2: Maintenance & Fault Finding
2.1 Servicing and Safety
•Raymarine equipment should be serviced only by authorized
Raymarine service technicians. They will ensure that service
procedures and replacement parts used will not affect performance.
There are no user serviceable parts in any Raymarine product.
•Some products generate high voltages, so never handle the cables/
connectors when power is being supplied to the equipment.
•When powered up, all electrical equipment produces
electromagnetic fields. These can cause adjacent pieces of electrical
equipment to interact with one another, with a consequent adverse
effect on operation. In order to minimise these effects and enable
you to get the best possible performance from your Raymarine
equipment, guidelines are given in the installation instructions, to
enable you to ensure minimum interaction between different items
of equipment, i.e. ensure optimum Electromagnetic Compatibility
(EMC).
•Always report any EMC-related problem to your nearest Raymarine
dealer. We use such information to improve our quality standards.
•In some installations, it may not be possible to prevent the
equipment from being affected by external influences. In general
this will not damage the equipment but it can lead to spurious
resetting action, or momentarily may result in faulty operation.
•Always switch off the power to Raymarine equipment before
working on it.
2.2 Maintenance
The Raymarine Heading Sensor is a sealed unit. Maintenance
procedures are therefore limited to the following periodical checks:
•Examine the cable for signs of damage, such as chafing, cuts or
nicks
•Make sure that the Heading Sensor is still attached securely to the
bulkhead
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2.3 Fault Finding
All Raymarine products are subjected to comprehensive test and
quality assurance programmes, prior to packing and shipping.
However, if your Heading Sensor should develop a fault , please refer
to the following table to identify the most likely cause and the
corrective action required to restore normal operation.
Problem Correction
No compass heading data available. Check that the cable connecting the
Heading Sensor to the NMEA
instrument or system is firmly attached
and undamaged.
The compass heading displayed on Heading Sensor has not been linearised.
the associated instrument is not the
same as the ship’s compass.
Linearisation procedure unsuccessful. Move the Heading Sensor to a new
location and try again.
Assistance
If you still have a problem after referring to the table above, contact
your local dealer or Raymarine Product Support Department for further
advice.
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Table of contents
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