Airmar DX900+ Bedienungsanleitung

Record the information found on the cable tag for future reference.

Part No.__________Date__________Frequency______________

17-626-01-rev.02 09/12/17

Owner’s Guide & Installation Instructions

Electromagnetic

Multilog Sensor

Smart™Sensor

Model DX900+

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

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

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

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

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.

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.

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").

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

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