Airmar DX900+ Manuale di istruzioni
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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
6
Applications
• High-speed racing sailboats
• Not recommended for boats designed to pull air under the hull.
•Plastic housing recommended for fiberglass or metal hull only.
Never install a plastic housing in a wood hull, since swelling of the wood can
possibly fracture the plastic.
•Stainless steel housing compatible with all hull materials.
Recommended for aluminum hulls to prevent electrolytic corrosion provided the
stainless steel housing is isolated from the metal hull.
• Accommodates a deadrise angle up to 22°.
Tools & Materials
Safety glasses
Dust mask
Ear protection
Water-based anti-fouling paint (mandatory in salt water)
Electric drill with 10mm (3/8") or larger chuck capacity
Drill bit: 3mm or 1/8"
Hole saw:
Plastic/metal housing in non-metal hull 51mm or 2"
Stainless steel housing in metal hull 57mm or 2-1/4"
Sandpaper
Mild household detergent or weak solvent (such as alcohol)
File (installation in a metal hull)
Marine sealant (suitable for below waterline)
Measuring tape
Chalk line
Slip-joint pliers (installing a metal housing)
Installation in a cored fiberglass hull (page 17):
Hole saw for hull interior: 60mm or 2-3/8"
Fiberglass cloth and resin
or Cylinder, wax, tape, and casting epoxy
Device-net cable [maximum 2m (6')] (NMEA 2000)
Pencil
Cutting pliers
Phillips screwdriver
Wire strippers
Heat-shrink tubing
Heat gun
Blade screwdrivers
Wrench
7
Follow the precautions below for optimal product performance and
to reduce the risk of property damage, personal injury, and/or death.
WARNING: Always wear safety glasses, a dust mask, and ear protection
when installing.
WARNING: The YELLOW O-ring must be in place near the top of the
insert to make a watertight seal.
WARNING: The O-rings must be intact and well lubricated to make a
watertight seal.
WARNING: The valve is not a watertight seal! Be sure the insert or
blanking plug is fully inserted into the housing, and the cap nut is screwed
on completely.
WARNING:Always attach the safety wire to prevent the insert or blanking
plug from backing out in the unlikely event that the cap nut fails or is
screwed on incorrectly.
WARNING: Immediately check for leaks when the boat is placed in the
water. Do not leave the boat unchecked for more than three hours. Even
a small leak may allow considerable water to accumulate.
WARNING: Stainless steel housing in a metal hull—Be sure the washer
contacts the hull. Do not tighten the hull nut with the washer against the
isolation bushing, as the housing will not be firmly installed.
WARNING: The power supply must be OFF before making electrical
connections.
CAUTION: Interference From Electronic Devices
Install the DX900+ sensor and the Processor a minimum of
1m (3') from other electronic equipment and cables. The
sensor may be susceptible to interference from strong
electromagnetic fields caused by devices such as AC
inverters, power supplies, or other on-board equipment.
Interference may cause inaccurate speed readings.
8
WARNING: A safe installation requires a 0.5 amp fast-blow fuse or circuit
breaker.
WARNING: The power supply voltage must be 9 - 16 VDC.
CAUTION: The sensor is NOT compatible with a bronze housing, because
bronze may cause interference resulting in incorrect readings.
CAUTION: Never pull, carry, or hold the sensor by its cable; this may sever
internal connections.
CAUTION: Plastic housing—Never use a fairing with a plastic housing;
the protruding sensor would be vulnerable to damage from impact.
CAUTION: Metal housing—Never install a metal housing in a vessel with
a positive ground system.
CAUTION: Stainless steel housing in a metal hull—Stainless steel
housing must be isolated from a metal hull to prevent electrolytic corrosion.
Use the isolation bushing supplied.
CAUTION: The sensor must be aligned within 1° of parallel to the
centerline/keel of the boat.
CAUTION: The arrow on the top of the insert must point forward toward
the bow area to align with the water flow.
CAUTION: The bottom of the insert must be flush with the bottom of the
housing. Note that the electrodes will protrude into the water.
CAUTION: Do not paint the face of the insert with the electrodes.
CAUTION: The sensor must be in good contact with the water at all times.
CAUTION: Never use solvents. Cleaner, fuel, sealant, paint, and other
products may contain solvents that can damage plastic parts, especially the
insert’s face.
IMPORTANT: Please read the Owner’s Guide completely before
proceeding. These instructions supersede any other instructions in your
instrument manual if they differ.
9
Choosing the Mounting Location
CAUTION: Do not mount in line with or near water intake or discharge openings,
or behind strakes, fittings, or hull irregularities that will disturb the water flow.
CAUTION: Never mount the sensor directly ahead of a depth transducer, since
turbulence generated by the housing will adversely affect the depth transducer’s
performance, especially at high speeds. Mount side-by-side.
• The sensor must be continuously immersed in water.
• The water flowing under the hull must be smooth with a minimum of bubbles
and turbulence (especially at high speeds).
• The transducer beam must be unobstructed by the keel or propeller shaft(s).
• Choose a location with a minimum deadrise angle, so the transducer beam will
be aimed at the bottom.
• Choose an accessible spot inside the vessel with adequate space for the height
of the housing, tightening the nuts, and installing the insert. Allow a minimum of
280mm (11").
10
Boat Types (Figure 2)
•Fin keel sailboats—Mount on or near the centerline and forward of the fin keel
300–600mm (1–2').
•Full keel sailboats—Locate amidships and away from the keel at the point of
minimum deadrise.
•Displacement hull powerboats—Locate amidships near the centerline. The
starboard side of the hull where the propeller blades are moving downward is
preferred.
•Planing hull powerboats—Mount well aft, on or near the centerline, and well
inboard of the first set of lifting strakes to insure that the sensor will be in contact
with the water at high speeds. The starboard side of the hull where the propeller
blades are moving downward is preferred.
Outboard and I/O—Mount just forward of the engine(s).
Inboard—Mount well ahead of the propeller(s) and shaft(s).
Stepped hull—Mount just ahead of the first step.
Boat capable of speeds above 25kn (29MPH)—Review the installation
location and operating results of similar boats before proceeding.
full keel sailboats
fin keel sailboats
Figure 2. Best location for sensor
large displacement hulls small displacement hulls
stepped hull
outboard and I/O
Copyright © 2017 Airmar Technology Corp
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