Airmar GH2183 User Manual
17-489-01 rev. 06 04/11/14
Owner’s Guide & Installation Instructions
Solid-State Compass
with GPS Receiver
U.S. Patent No. 8,326,561
UK Patent No. 2 460 158
Model
GH2183
Record the serial number found on the underside of the sensor.
Serial No._______________ Date of Purchase_____________
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All Rights Reserved. Except as expressly provided herein, no part of this manual may be
Copyright © 2008 - 2014 Airmar Technology Corp. All rights reserved.
reproduced, copied, transmitted, disseminated, downloaded, or stored in any storage
medium, for any purpose without prior written consent of Airmar. Airmar hereby grants
permission to download a single copy of this manual and of any revision of this manual onto
a hard drive or other electronic storage medium to be viewed and to print one copy of this
manual or any revision hereto, provided that such electronic or printed copy of this manual
or revision must contain the complete text of this copyright notice and provided further that
any unauthorized commercial distribution of this manual or any revision hereto is strictly
prohibited.
Information in this manual is subject to change without notice. Airmar reserves the right to
change or improve its products and to make changes in the content without obligation to
notify any person or organization of such changes. Visit the Airmar website at
www.airmar.com for current updates and supplemental information concerning the use and
operation of this and other Airmar products.
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Table of Contents
Introduction............................................................................ 4
Safety Instructions.................................................................. 5
Hardware, Tools & Materials................................................. 6
Choosing the Mounting Location........................................... 7
Installing................................................................................. 8
Pole or Rail Mount................................................................. 8
Flush Mounting on a Horizontal Surface............................. 10
Cable Routing & Connecting Guidelines............................. 11
Connecting to an NMEA 0183 Display................................ 12
Connecting to an NMEA 2000® Network........................... 13
Calibrating the Compass....................................................... 14
Maintenance..........................................................................15
Troubleshooting.................................................................... 15
Firmware Revisions.............................................................. 15
NMEA 2000®: Load Equivalency Number......................... 15
Where to Purchase Parts....................................................... 15
Trademarks........................................................................... 16
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Introduction
IMPORTANT: Please read the Owner’s
Guide completely before proceeding.
Thank you for purchasing the Airmar’s solid-state Compass with GPS Receiver.
This exciting product is actually four sensors in a single unit—a three-axis
magnetic compass, a three-axis accelerometer, a three-axis rate gyro, and a GPS
receiver. The compact housing is waterproof with a single removable cable. Data
is output in digital NMEA 0183 and NMEA 2000® formats.
Functions & Outputs
• Magnetic compass heading
• Angle of vessel pitch (attitude)
• Angle of vessel roll (attitude)
• Rate of Turn
• GPS using WAAS and EGNOS
• NMEA 0183 interface: RS232 or RS422
Features
• Fast response time
• GPS position updates every second
• Stable and accurate data in dynamic conditions
• Can be programmed to compensate for an installation that is NOT aligned to
the front of the boat/vehicle and/or level
• Can be calibrated to compensate for magnetic deviation caused by ferrous
metals and other electro-magnetic fields
• Simultaneously outputs data in NMEA 0183 and NMEA 2000® formats
• Waterproof housing
• Waterproof cable system
• Pole, rail, or flush mount
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Follow the safety precautions below to reduce the risk of poor product
WARNING
Navigation Aid Only: The sensor is only an aid to
navigation and should never be solely relied upon. It is
not a replacement for traditional navigation aids and
techniques. Only official government charts contain all
the information needed for safe navigation.
performance, property damage, personal injury, and/or death.
WARNING: GPS Accuracy
The GPS position and velocity accuracies are controlled by the U.S. Department
of Defence. Therefore the position accuracy described in the specifications cannot
be guaranteed.
WARNING: Correct Installation Important
The sensor must be installed and operated according to the instructions in this
owner’s guide.
WARNING: Installation Safety
Always wear safety goggles and a dust mask when installing.
WARNING: Compass Safe Distance
The sensor must be a minimum of 0.3m (1') from other standard and steering
compasses.
WARNING: Do Not Install Near Artificial Magnetic Fields
Observe a safe distance from ferrous metals and anything that can create a
magnetic field to prevent interference to the magnetic compass.
WARNING: Electrical Safety
The power supply must be OFF before making electrical connections.
WARNING: Voltage
The power supply voltage must be 9 - 40 VDC.
WARNING: Battery
Make power connections to a power source that is isolated from the engine start
battery(s). Voltage drops may cause the compass to lose information and / or
change operating mode.
WARNING: Fuse or Circuit Breaker
A safe installation requires a 0.5 amp fast-blow fuse or circuit breaker.
WARNING: Calibrating the Compass
The internal compass may need to be calibrated after the sensor is installed. Perform
the pretest to determine if calibration is necessary.
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