Airmar DX900+ Instruction Manual

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Part No.__________Date__________Frequency______________
17-626-01-rev.02 09/12/17
Owner’s Guide & Installation Instructions
Electromagnetic
Multilog Sensor
Smart™Sensor
Model DX900+

Copyright © 2017 Airmar Technology Corp. All rights reserved.
All Rights Reserved. Except as expressly provided herein, no part of this manual may be
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.

Table of Contents
Introduction......................................................................................4
Functions & Outputs........................................................................4
Features & Options..........................................................................4
About the CAST™App....................................................................5
Applications.....................................................................................6
Tools & Materials............................................................................6
Warnings..........................................................................................7
Choosing the Mounting Location....................................................9
Anti-fouling Paint..........................................................................11
Installation......................................................................................12
Installation in a Cored Fiberglass Hull..........................................17
Cable Routing & Connecting.........................................................18
Speed & Temperature Only: NMEA 0183.....................................18
Depth, Speed & Temperature: NMEA 2000®or NMEA 0183......18
Installing the Processor..................................................................19
Checking for Leaks........................................................................21
Operation, Maintenance, & Replacement......................................21
Troubleshooting.............................................................................24

4
Introduction
Thank you for purchasing Airmar’s Electromagnetic MultiLog Sensor. The
DX900+ is the industry’s first Bluetooth®-enabled, multi-functional unit. It is
actually several sensors in a single housing. And it is the only sensor that truly
measures leeway instantaneously—not derived from a calculation. Data is output
in NMEA 0183 or NMEA 2000®format.
Features & Options
•Bluetooth®-enabled to connect your boat display and smart devices
• Supports both iOS and Android platforms
• Performs speed calibration and more through the CAST™app
• Configurable data update rate: up to 10Hz
• Diagnostic information for troubleshooting
• Interface to update firmware
• Dual-axis, electromagnetic, speed sensor
• Fast-response water temperature
• Depth transducer
• Three-axis accelerometer
• Three-axis rate gyroscope
• Retrofits most existing 51mm (2") thru-hull housings
Functions & Outputs DX900+
Speed
Leeway
Reverse speed
Temperature of water
Depth of water Optional
Heel & Trim Optional
NMEA 0183: RS422 Optional
NMEA 0183: RS232 Optional
NMEA 2000: CAN Optional

5
About the CAST™App
Download the CAST app by Airmar to view, analyze, and share sensor data and
evaluate your sailing performance. Simply install the CAST app on your iOS or
Android device to view available NMEA data over a Bluetooth®or network
connection. Create custom gauges and page views to see only the data that is
important to you. With the CAST app you can perform speed, temperature, and
attitude calibrations without extra converters or cables. In addition to firmware
updates, the app logs all of the NMEA sensor data over a customized time period
for analysis. Smart devices with Bluetooth connectivity can be used to view the
data, creating a mobile powerhouse.
Downloading the CAST App
CAST is compatible with Bluetooth®LE-enabled iOS devices.
1. Go to the App Store.
2. Search on the word Airmar.
3. Download the free CAST app (Figure 1).
Figure 1. CAST app icon
Copyright© 2017 Airmar Technology Corporation