DST100

NMEA 2000® Depth/Speed/Temperature Transducer

 

User’s Manual

 

 

 

Revision 1.3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Copyright © 2016 Maretron, LLP All Rights Reserved

 

Maretron, LLP

9014 N. 23rd Ave #10

Phoenix, AZ 85021-7850

http://www.maretron.com

 

 

Maretron Manual Part #: M000701


 

 

Revision History

 

Revision

Description

1.0

Original document

1.3

Added deadrise angle to specification

 


 

Table of Contents

 

1          General 1

1.1      Introduction.. 1

1.2      Features. 1

1.3      Quick Install 1

2          Installation.. 2

2.1      Unpacking the Box. 2

2.2      Housing Material 2

2.3      Tools and Materials. 2

2.4      Pretest 3

2.5      Antifouling Paint 3

2.6      Choosing a Mounting Location.. 4

2.7      Mounting the DST100. 5

2.7.1       All Hull Types Except Cored Fiberglass. 5

2.7.2       Installation in a Cored Fiberglass Hull 8

2.8      Connecting the DST100. 9

2.8.1       Checking Connections. 10

3          Transducer Depth Offset Calibration.. 10

4          Zeroing the Cumulative Voyage Distance (Log) 10

5          Maintenance. 10

5.1      Using the Blanking Plug. 10

5.2      Servicing the Insert 11

5.3      Replacement Parts. 12

5.4      Connection Checking. 12

5.5      Antifouling Paint 12

6          Troubleshooting. 12

7          Technical Specifications. 13

8          Technical Support 14

9          Maretron (2 Year) Limited Warranty. 15

 

Table of Figures

 

Figure 1 – Antifouling Paint Application. 4

Figure 2 – Mounting Locations. 5

Figure 3 – Bedding and Installation.. 6

Figure 4 – Preparing a Cored Fiberglass Hull 9

Figure 5 – NMEA 2000® Connector Face Views. 9

Figure 6 – Replacing the Paddlewheel and O-rings. 11

Figure 7 – Troubleshooting Guide. 12

 

Table of Appendices

 

Appendix A – NMEA 2000® Interfacing.............................................................................................. A1


 


1      General

1.1      Introduction

Congratulations on your purchase of the Maretron DST100 NMEA 2000® Depth, Speed, and Temperature Transducer. Maretron has designed and built your transducer to the highest standards for years of dependable and accurate service. The DST100 detects the water depth with a 235 KHz depth transducer, the water speed with a paddlewheel and Hall effect sensor, and the water temperature with a precision thermistor element.

 

The Maretron DST100 is designed to operate within the harsh demands of the marine environment.  However, no piece of marine electronic equipment can function properly unless installed, calibrated, and maintained in the correct manner.  Please read carefully and follow these instructions for installation, calibration, and usage of the Maretron DST100 in order to ensure optimal performance.

 

1.2      Features

The Maretron DST100 NMEA 2000® Depth/Speed/Temperature Transducer has the following features.

 

·    NMEA 2000® Interface

·    235 KHz Ceramic Transducer for Detecting Water Depth

·    Paddlewheel with Hall Effect Sensor for Detecting Speed Through Water

·    Advanced Digital Signal Processing for Accurate Speed Indication Down to 1 Knot

·    Total Cumulative Distance (distance traveled through the water since installation)

·    Cumulative Voyage Distance (distance traveled through the water since last reset)

·    Precision Thermistor for Detecting Water Temperature

·    Calibration for Compensating Transducer Offset to Waterline or Keel

·    Waterproof Enclosure and Cable System

 

1.3      Quick Install

Installing the Maretron DST100 transducer involves the following five steps. Please refer to the individual sections for additional details.

 

1.    Unpack the Box (Section 2.1)

2.    Choose a Mounting Location (Section 2.6)

3.    Mount the DST100 Transducer (Section 2.7)

4.    Connect the DST100 Transducer (Section 2.8)

5.    Calibrate the DST100 Transducer for Waterline or Keel Offset (Section 3)

 

 

 

 

2      Installation

2.1      Unpacking the Box

When unpacking the box containing the Maretron DST100, you should find the following items.

 

·         1 – DST100 Insert (with attached cable)

·         1 – Plastic Housing

·         1 – Plastic Hull Nut

·         1 – Rubber Bushing

·         1 – Safety Wire

·         1 – Blanking Plug

·         1 – Tube of Silicone Lubricant

·         1 – DST100 User’s Manual

·         1 – Warranty Registration Card

 

If any of these items are missing or damaged, please contact Maretron.

 

2.2      Housing Material

The DST100 is supplied with a plastic housing that is suitable for most installations. As an option, Maretron offers both a bronze and stainless steel housing material. Please follow these recommendations for determining the right material for your particular installation.

 

2.3      Tools and Materials

Water-based antifouling paint (mandatory in salt water)

Safety goggles

Dust mask

Electric drill with 10 mm (3/8”) or larger chuck capacity

Drill bit:           3 mm or 1/8”

Hole saw:       51 mm or 2” (plastic or bronze housing)

                        57 mm or 2-1/4” (stainless steel housing in a metal hull)

Countersink tool (for installing a flush housing)

Sandpaper

Mild household detergent or weak solvent (such as alcohol)

File (for installation in a metal hull)

Marine sealant

Additional washer [for aluminum hull less than 6 mm (1/4”) thick]

Slip-joint pliers (for installing a bronze housing)

Zip-ties

Installation in a cored fiberglass hull (see Section 2.7.2):

            Hole saw for hull interior     60 mm or 2-3/8”

            Fiberglass cloth and resin

            or Cylinder, wax, tape, and casting epoxy.

 

2.4      Pretest

Connect the DST100 to the NMEA 2000® network and spin the paddlewheel. Check for a speed reading and the approximate air temperature. If there is no reading or it is inaccurate, return the instrument to the place of purchase.

 

2.5      Antifouling Paint

Marine growth can accumulate rapidly on the transducer’s surface reducing performance within weeks. Surfaces exposed to salt water must be coated with antifouling paint. Use water-based antifouling paint only. Never use ketone-based paint, since ketones can attack many plastics possibly damaging the sensor.

 

It is easier to apply antifouling paint before installation, but allow sufficient drying time. Reapply paint every 6 months or at the beginning of each boating season. Paint the following surfaces (see Figure 1):

 

·         Outside wall of the insert below the lower O-ring

antifouling paint

Figure 1 Antifouling Paint Application

 

2.6      Choosing a Mounting Location

The selection of a suitable mounting location is important for the optimal performance of the Maretron DST100. The mounting location and orientation of the DST100 should be:

 

1.    Preferably on the starboard side of the hull —where propeller blades are moving downward through the water.

2.    Continuously Immersed In Water

3.    Where Water Flowing across the Hull is Smooth with a Minimum of Bubbles and Turbulence – especially at high speeds.

4.    Where the Transducer Beam is Unobstructed by the Keel or Propeller Shaft(s)

5.    Where there is a Minimum Deadrise Angle

6.    Accessible from Inside the Vessel – with adequate headroom for the height of the housing, tightening the nuts, and removing the insert.  Allow a minimum of 280 mm (11”).

 

Please follow the following guidelines for different hull types (see Figure 2):

  1. Displacement Hull Powerboats – Locate amidships near the centerline.
  2. Planing Hull Powerboats – Mount well aft, on or near the centerline, and well inboard of the first set of lifting strakes to ensure that the DST100 is in contact with the water at high speeds.
  3. Outboard and I/O – Mount just forward of the engine(s).
  4. Inboard – Mount well ahead of the propeller(s) and shaft(s).
  5. Step-hull – Mount just ahead of the first step.
  6. Boat capable of speeds above 25 knots (29 MPH) – Review the installation location and operating results of similar boats before proceeding.
  7. Fin Keel Sailboats – Mount on or as close as possible to the centerline and forward of the fin keel 300 to 600 mm (1 to 2’).
  8. Full Keel Sailboats – Locate amidships and away from the keel at the point of minimum deadrise.

 

Caution: Do not mount the DST100 in an area of turbulence or bubbles: near water intake or discharge openings; behind strakes, fittings, or hull irregularities.

 

mounting locations

Figure 2 – Mounting Locations

2.7   Mounting the DST100

The Maretron DST100 is mounted through the hull.  If the hull is a cored fiberglass hull, please follow the instructions in Section 2.7.2.  For other hull types, please follow the instructions in Section 2.7.1.

 

2.7.1      All Hull Types Except Cored Fiberglass

2.7.1.1 Hole Drilling

Warning: Always wear safety goggles and a dust mask.

 

  1. Drill a 3 mm or 1/8” pilot hole from inside the hull.  If there is a rib, strut, or other hull irregularity near the selected mounting location, drill from the outside.
  2. Using the appropriate size hole saw, cut a hole from outside the hull.
    Flush housing – Use a countersink tool to make a “seat” in the hull.
  3. Sand and clean the area around the hole, inside and outside, to ensure that the sealant will adhere properly to the hull.  If there is any petroleum inside the hull, remove it with either mile household detergent or a weak solvent (alcohol) before sanding.
    Metal hull – Remove all burrs with a file and sandpaper.

 

2.7.1.2 Bedding

Apply a 2 mm (1/16”) thick layer of marine sealant around the lip of the housing that contacts the hull and up the sidewall of the housing. The sealant must extend 6 mm (1/4”) higher than the combined thickness of the hull, washer(s), and hull nut (see Figure 3). This will ensure there is sealant in the threads to seal the hull and hold the hull nut securely in place.

 

Stainless steel housing in a metal hull – To prevent electrolytic corrosion, the stainless steel housing must be isolated from the metal hull. Slide the isolation bushing onto the housing.  Apply additional sealant to the surfaces of the bushing that will contact the hull.

 

Figure 3 – Bedding and Installation

 

2.7.1.3 Installation

Caution: Never pull, carry, or hold the DST100 by the cable as this may damage internal connections.

 

  1. From outside the hull, push the housing into the mounting hole using a twisting motion to squeeze out excess sealant (see Figure 3).  Align the arrow on the lip of housing to point forward toward the bow.  If the DST100 is not installed on the centerline, angle the housing slightly toward the centerline to align it with the water flow.
  2. From inside the hull, slide the washer onto the housing.
    Aluminum hull less than 6 mm (1/4”) thick – Use an additional rubbery, fiberglass, or plastic washer. Never use bronze since electrolytic corrosion will occur. Never use wood since it will swell, possible fracturing the plastic housing.
  3. Screw the hull nut in place.
    Wood hull – Allow the wood to swell before tightening the hull nut securely.
    Plastic housingDo not clamp tightly on the wrenching flats, possibly causing the housing to fracture.
    Plastic hull nut – Hand-tighten only.  Do not over tighten.

Metal hull nut-- Tighten with slip-joint pliers.

  1. Remove any excess sealant on the outside of the hull to ensure smooth water flow over the DST100.
    Warning: The O-rings must be intact and well lubricated to make a watertight seal.
  2. After the sealant cures, inspect the O-rings on the insert (replace if necessary) and lubricate them with the silicone lubricant supplied.
  3. Slide the insert into the housing with the arrow on the top pointing forward toward the bow.  Screw the cap nut several turns until there is resistance. The arrow on the top of the insert, the cable exit, and the arrow on the lip will all be aligned.  Continue to tighten the cap nut.  Be careful not to rotate the housing and disturb the sealant. Hand tighten only.  Do not over tighten.

    Warning: Always attach the safety wire to prevent the insert from backing out in the unlikely event that the cap nut fails or is screwed on incorrectly.

  4. Attach the safety wire.
    Plastic housing – Attach the safety wire to one eye in the hull nut.  Load the wire in a counterclockwise direction and thread it through one eye in the cap nut.  Thread the wire through the eye a second time.  Then, lead the wire through the eye in the insert.  Twist the wire securely to itself.

Metal housing—Wrap one end of the safety wire tightly around the housing
and twist it together with the long end. Lead the wire straight up and
through one eye in the cap nut. Thread the wire through the eye a second
time. Then lead the wire counterclockwise and through the eye in the
insert. Twist the wire securely to itself.
This is an important safety step, since attaching the safety wire to a
metal housing is different than attaching it to a plastic housing.

  1. Route the cable to the network being careful not to tear the cable jacket when passing it through the bulkhead(s) and other parts of the boat.  Coil any excess cable and secure
    it in place with zip-ties to prevent damage.

 

2.7.1.4 Checking for Leaks

Warning: Never install a thru-hull transducer and leave the boat in the water unchecked for several days.

 

When the boat is placed in the water, immediately check around the thru-hull transducer for leaks.  Note that very small leaks may not be readily observed.  It is best not to leave the boat in the water for more than 3 hours before checking it again.  If there is a small leak, there may be considerable bilge water accumulation after 24 hours.  If a leak is observed, repeat “Bedding” and “Installing” immediately (see Sections 2.7.1.2 and 2.7.1.3).

 

2.7.2      Installation in a Cored Fiberglass Hull

The core (wood or foam) must be cut and sealed carefully.  The core must be protected from water seepage, and the hull must be reinforced to prevent it from crushing under the hull not allowing the housing to become loose.

 

Warning: always wear safety goggles and a dust mask.

1.    Drill a 3 mm or 1/8” pilot hole from inside the hull. If there is a rib, strut, or other hull irregularity near the selected mounting location, drill from the outside. (If the hole is drilled in the wrong location, drill a second hole in a better location. Apply masking tape to the outside of the hull over the incorrect hole and fill it with epoxy.)

  1. Using a 51 mm or 2” hole saw, cut the hole from outside the hull through the outer skin only (See Figure 4).
  2. From inside the hull, use a 60 mm or 2-3/8” hole saw to cut through the inner skin and most of the core.  The core material can be very soft.  Apply only light pressure to the hole saw after cutting through the inner skin to avoid accidentally cutting the outer skin.
  3. Remove the plug of core material so the inside of the outer skin and the inner core of the hull are fully exposed. Sand and clean the inner skin, core, and the outer skin around the hole.
    Caution: Completely seal the hull to prevent water seepage into the core.
  4. If you are skilled with fiberglass, saturate a layer of fiberglass cloth with a suitable resin and lay it inside the hole to seal and strengthen the core. Add layers until the hole is the correct diameter.
    Alternatively, a hollow or solid cylinder of the correct diameter can be coated with wax and taped in place.  Fill the gap between the cylinder and hull with casting epoxy. After the epoxy has set, remove the cylinder.
  5. Sand and clean the area around the hole, inside and outside, to ensure that the sealant will adhere properly to the hull.  If there is any petroleum residue inside the hull, remove it with either mild household detergent or a weak solvent (alcohol) before sanding.
  6. Proceed with “Bedding” and “Installing” (see Sections 2.7.1.2 and 2.7.1.3).

 

 

 

 

cored fibreglass

Figure 4 – Preparing a Cored Fiberglass Hull

 

2.8      Connecting the DST100

The Maretron DST100 provides a connection to an NMEA 2000® interface through a five pin male connector located on the end of the cable attached to the DST100 (see Figure 5). You connect the DST100 to an NMEA 2000® network by plugging the male connector into a female receptacle of the NMEA 2000® network (note the key on the male connector and keyway on the female connector). Be sure the cable is connected securely and that the collar on the cable connector is tightened firmly. The DST100 is designed such that you can plug or unplug it from an NMEA 2000® network while the power to the network is connected or disconnected. Please follow recommended practices for installing NMEA 2000® network products.

 

Figure 5 – NMEA 2000® Connector Face Views

 

2.8.1      Checking Connections

Once the NMEA 2000® connection to the Maretron DST100 have been completed, check to see that speed, depth, and temperature information is being properly transmitted by observing an appropriate display. Refer to Section 6, “Troubleshooting”, if no heading information appears, otherwise proceed to Section 3 entitled “Calibration”.

 

3      Transducer Depth Offset Calibration

The DST100 measures the depth of the water from the transducer, which may or may not be the waterline depth or the depth of water underneath the keel depending on the mounting location. Fortunately, the DST100 can be calibrated for reporting the offset from the transducer to the waterline or the DST100 can be calibrated to report the offset between the transducer and the lowest point on the vessel. Depth display readings then report either the waterline depth or the depth under keel depending on your preference.

 

The easiest way to set the offset calibration is through a Maretron display product (please refer to your Maretron display manual) although users with direct access to the NMEA 2000® interface can perform transducer offset calibration directly through the NMEA 2000® interface (see Appendix A).

 

4      Zeroing the Cumulative Voyage Distance (Log)

The Maretron DST100 automatically logs two different cumulative distances; 1) total cumulative distance since installation, and 2) cumulative voyage distance since reset. You cannot zero out the total cumulative distance since installation but you are able to zero out the cumulative voyage distance since reset. Zeroing the cumulative voyage distance is easily done with a Maretron display product (see appropriate Maretron display manual) or alternatively, users with direct access to the NMEA 2000® interface can perform zeroing directly through the NMEA 2000® interface (see Appendix A).

 

5      Maintenance

5.1      Using the Blanking Plug

To protect the paddlewheel, use the blanking plug when the boat will be kept in salt water for more that a week, or when the boat is removed from the water, or aquatic growth build-up on the paddlewheel is suspected due to inaccurate readings from the instrument.

 

Warning: The O-rings must be intact and well lubricated to make a watertight seal.

  1. Inspect the O-rings on the blanking plug (replace if necessary) and lubricate them with the silicone lubricant supplied or petroleum jelly (Vaseline®) (see Figure 6).
  2. Remove the insert from the housing by removing the safety wire.  Loosen the cap nut.
  3. With the blanking plug ready in one and, pull the insert most of the way out.  Remove the insert and rapidly replace it with the blanking plug.  With practice, only 250 ml (10 oz.) of water will enter the boat.
  4. Screw the cap nut several turns until there is resistance. Continue to tighten the cap nut. Hand-tighten only. Do not over tighten.
    Warning: Always attach the safety wire to prevent the insert from backing out in the unlikely event that the cap nut fails or is screwed on incorrectly.
  5. Reattach the safety wire.
  6. Winterizing
    After the boat has been hauled for winter storage, remove the blanking
    plug/insert to let the water drain away before re-inserting it. This
    will prevent any water from freezing around the blanking plug/insert and
    possibly cracking it.

paddlewheel replacement

Figure 6 – Replacing the Paddlewheel and O-rings

 

5.2      Servicing the Insert

Aquatic growth can accumulate rapidly on the depth transducer’s surface and impede or freeze the paddlewheel’s rotation, reducing performance within weeks. Clean the insert with a soft cloth and mild household detergent. If the fouling is severe, remove the paddlewheel with needle-nose pliers. Use a stiff brush or putty knife to remove the growth taking care to avoid scratching the depth transducer. Lightly wet sand with fine grade wet/dry paper.

 

The water lubricated paddlewheel bearings have a life of up to 5 years on low-speed boats [less than 10 knots (11 MPH)] and 1 year on high-speed vessels. Paddlewheels can fracture and shafts can bend due to impact with water borne objects and mishandling in boat yards. O-rings must be free of abrasions and cuts to ensure a watertight seal. A replacement Paddlewheel Kit  (33-398-04) is available.

 

  1. Remove the old paddlewheel shaft with needle-nose pliers (see Figure 6).
  2. Place the new paddlewheel in the cavity with the flat side of the blade facing the same direction as the arrow on the top of the insert.
  3. Tap the new shaft into place until the end is flush with the outside wall of the insert.
  4. Install a large O-ring near the top of the insert. Install a small O-ring near the paddlewheel.
  5. Place the remaining two O-rings in similar positions on the blanking plug.

 

5.3      Replacement Parts

Lost, broken, and worn parts should be replaced immediately. If you have purchased a plastic housing and have a wood hull or desire greater strength, purchase a Maretron metal housing. Obtain the following parts from your marine dealer or directly from Maretron.

 

Blanking Plug

Hull Nut

Housing, Nut & Washer

Paddlewheel, Shaft & O-rings

33-486-01

04-004 (P)

02-030 (B)

33-100 (B)

33-094-01 (SS)

33-398-04

 

5.4      Connection Checking

Periodically check the security of the cables connected to the NMEA 2000® interface and tighten if necessary.

 

5.5      Antifouling Paint

Reapply antifouling paint every six months or at the beginning of each boating season (see Section 2.5).

 

6      Troubleshooting

If you notice unexpected operation of the Maretron DST100, follow the troubleshooting procedures in this section to remedy simple problems.

 

Symptom

Troubleshooting Procedure

No speed, depth, and temperature output

Check the connections to the NMEA 2000® connector and tighten if necessary

 

Ensure that power is supplied to the connected NMEA 2000® cable

No speed output

Check the DST100 paddlewheel for breakage or fouling

No depth output

Check the DST100 depth transducer for fouling

Figure 7 – Troubleshooting Guide

 

If these steps do not solve your problem, please contact Maretron Technical Support (refer to Section 8 for contact information).

 

7      Technical Specifications

Specifications

Parameter

Value

Comment

Depth Operating Frequency

235 kHz

Wide Beam Angle

Minimum Depth

0.4 m

Deadrise Angle Tolerant

Maximum Depth

60 m

No Calibration Required

Depth Tracking Speeds

Up to 40 knots

High Speed Bottom Tracking Capability

Depth Update Rate

1 second

 

Speed Sensor

Paddlewheel

No Calibration Required

Speed Range

1 – 60 knots

Microprocessor Signal Processing Accuracy

Speed Update Rate

1 second

 

Water Temperature Range

-10°C to 40°C

Fast Response Time

Water Temperature Accuracy

±1.0°C

No Calibration Required

Maximum Deadrise Angle

22°

 

 

Certifications

Parameter

Comment

NMEA 2000

Level B+

Maritime Navigation and Radiocommunication Equipment & Systems

Tested to IEC 60945

FCC and CE Mark

Electromagnetic Compatibility

 

NMEA 2000 Parameter Group Numbers (PGNs) - See Appendix B for Details

Description

PGN #

PGN Name

Default Rate

Periodic Data PGNs

128267

Water Depth

1 Time/Second

128259

Speed (Water Referenced)

1 Time/Second

130310

Environmental Parameters (Water Temperature)

2 Times/Second

128275

Distance Log

1 Time/Second

Response to Requested PGNs

126464

PGN List (Transmit and Receive)

N/A

126996

Product Information

N/A

126998

Configuration Information

N/A

Protocol PGNs

059392

ISO Acknowledge

N/A

059904

ISO Request

N/A

060928

ISO Address Claim

N/A

065240

ISO Address Command

N/A

126206

NMEA

N/A

 

Electrical

Parameter

Value

Comment

Operating Voltage

9 to 16 Volts

DC Voltage

Power Consumption

<50mA

Average Current Drain

Load Equivalence Number (LEN)

1

NMEA 2000® Spec. (1LEN = 50 mA)

Reverse Battery Protection

Yes

Indefinitely

 

Mechanical

Parameter

Value

Comment

Size

2.94” Dia. X 4.87” Tall

(74.7mm Dia. X 123.7 mm Tall)

Including Mounting Flanges

Weight

12 Oz. (340 g)

 

Mounting

Lexan/Bronze/Stainless Steel

Bronze/Stainless Steel Optional

 

Environmental

Parameter

Value

IEC 60945 Classification

Submerged

Degree of Protection

IP68

Operating Temperature

-10°C to 40°C

Storage Temperature

-40°C to 71°C

 

8      Technical Support

If you require technical support for Maretron products, you can reach us in one of the following ways:

 

                                               Telephone:     1-866-550-9100

                                                            Fax:     1-602-861-1777

                                                       E-mail:     support@maretron.com

                                    World Wide Web:     http://www.maretron.com

                                                           Mail:     Maretron, LLP
                                                                        Attn: Technical Support
                                                                        9014 N. 23rd Ave Suite 10
                                                                        Phoenix, AZ 85021 USA

 


9      Maretron (2 Year) Limited Warranty

Maretron warrants the DST100 to be free from defects in materials and workmanship for two (2) years from the date of original purchase. If within the applicable period any such products shall be proved to Maretron’s satisfaction to fail to meet the above limited warranty, such products shall be repaired or replaced at Maretron’s option. Purchaser's exclusive remedy and Maretron’s sole obligation hereunder, provided product is returned pursuant to the return requirements below, shall be limited to the repair or replacement, at Maretron’s option, of any product not meeting the above limited warranty and which is returned to Maretron; or if Maretron is unable to deliver a replacement that is free from defects in materials or workmanship, Purchaser’s payment for such product will be refunded. Maretron assumes no liability whatsoever for expenses of removing any defective product or part or for installing the repaired product or part or a replacement therefore or for any loss or damage to equipment in connection with which Maretron’s products or parts shall be used.  With respect to products not manufactured by Maretron, Maretron’s warranty obligation shall in all respects conform to and be limited to the warranty actually extended to Maretron by its supplier. The foregoing warranties shall not apply with respect to products subjected to negligence, misuse, misapplication, accident, damages by circumstances beyond Maretron’s control, to improper installation, operation, maintenance, or storage, or to other than normal use or service.

 

Snap-in paddlewheel carriers, paddlewheels, paddlewheel bearings, and paddle shafts are consumable items, and are specifically excluded from this warranty.

 

THE FOREGOING WARRANTIES ARE EXPRESSLY IN LIEU OF AND EXCLUDES ALL OTHER EXPRESS OR IMPLIED WARRANTIES, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND OF FITNESS FOR A PARTICULAR PURPOSE.

 

Statements made by any person, including representatives of Maretron, which are inconsistent or in conflict with the terms of this Limited Warranty, shall not be binding upon Maretron unless reduced to writing and approved by an officer of Maretron.

 

IN NO CASE WILL MARETRON BE LIABLE FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES, DAMAGES FOR LOSS OF USE, LOSS OF ANTICIPATED PROFITS OR SAVINGS, OR ANY OTHER LOSS INCURRED BECAUSE OF INTERRUPTION OF SERVICE. IN NO EVENT SHALL MARETRON’S AGGREGATE LIABILITY EXCEED THE PURCHASE PRICE OF THE PRODUCT(S) INVOLVED.  MARETRON SHALL NOT BE SUBJECT TO ANY OTHER OBLIGATIONS OR LIABILITIES, WHETHER ARISING OUT OF BREACH OF CONTRACT OR WARRANTY, TORT (INCLUDING NEGLIGENCE), OR OTHER THEORIES OF LAW WITH RESPECT TO PRODUCTS SOLD OR SERVICES RENDERED BY MARETRON, OR ANY UNDERTAKINGS, ACTS OR OMISSIONS RELATING THERETO. 

 

Maretron does not warrant that the functions contained in any software programs or products will meet purchaser’s requirements or that the operation of the software programs or products will be uninterrupted or error free. Purchaser assumes responsibility for the selection of the software programs or products to achieve the intended results, and for the installation, use and results obtained from said programs or products. No specifications, samples, descriptions, or illustrations provided Maretron to Purchaser, whether directly, in trade literature, brochures or other documentation shall be construed as warranties of any kind, and any failure to conform with such specifications, samples, descriptions, or illustrations shall not constitute any breach of Maretron’s limited warranty.

 

Warranty Return Procedure:

To apply for warranty claims, contact Maretron or one of its dealers to describe the problem and determine the appropriate course of action. If a return is necessary, place the product in its original packaging together with proof of purchase and send to an Authorized Maretron Service Location. You are responsible for all shipping and insurance charges. Maretron will return the replaced or repaired product with all shipping and handling prepaid except for requests requiring expedited shipping (i.e. overnight shipments). Failure to follow this warranty return procedure could result in the product’s warranty becoming null and void.

 

Maretron reserves the right to modify or replace, at its sole discretion, without prior notification, the warranty listed above.  To obtain a copy of the then current warranty policy, please go to the following web page:

 

http://www.maretron.com/company/warranty.php


 


Appendix A – NMEA 2000® Interfacing

 

DST100 NMEA 2000® Periodic Data Transmitted PGNs

 

PGN 128267 – Water Depth

The DST100 uses this PGN to indicate the water depth relative to the transducer and offset of the measuring transducer. 

 

  Field 1:  SID – The sequence identifier field is used to tie related PGNs together. For example, the DST100 will transmit identical SIDs for Speed (PGN 128259) and Water depth (128267) to indicate that the readings are linked together (i.e., the data from each PGN was taken at the same time although reported at slightly different times).

           2:  Water Depth, Transducer – This field is used to report the depth relative to the transducer in units of 1x10-2 m.

           3:  Offset – If the value of this field is positive, it represents the difference in depth between the transducer and the waterline of the vessel.  If the value of this field is negative, it represents the difference in depth between the transducer and the keel of the vessel.  The unit of measurement for this field is 1x10-3 m.

           4:  Reserved – This field is reserved by NMEA; therefore, the DST100 sets all bits to a logic 1.

 

PGN 128259 – Speed

The DST100 uses this PGN to indicate the vessel’s speed through the water.

 

  Field 1:  SID – The sequence identifier field is used to tie related PGNs together. For example, a compass would transmit identical SIDs for Water depth (128267) and Speed (PGN 128259)  to indicate that the readings are linked together (i.e., the data from each PGN was taken at the same time although reported at slightly different times).

           2:  Speed, Water Referenced – This field is used to report the vessel’s speed relative to the water in units of 1x10-2 meters per second.

           3:  Speed, Ground Referenced – This field is not used by the DST100; therefore, it transmits a value of 0xFFFF (65,535) for this field (which represents “data not available”).

           4:  Reserved – This field is reserved by NMEA; therefore, the DST100 sets all bits to a logic 1.

 

PGN 130310 – Environmental Parameters

The DST100 uses this PGN to indicate the water temperature.

 

  Field 1:  SID – The sequence identifier field is used to tie related PGNs together. Although the DST100 transmits a SID for the Environmental PGN, it is not tied to any other PGNs.

           2:  Water Temperature – This field indicates the water temperature in units of 1x10-2°K.

           3:  Outside Ambient Air Temp – This field is not used by the DST100; therefore, it transmits a value of 0xFFFF (65,535) for this field (which represents “data not available”).

           4:  Atmospheric Pressure – This field is not used by the DST100; therefore, it transmits a value of 0xFFFF (65,535) for this field (which represents “data not available”).

           5:  Reserved – This field is reserved by NMEA; therefore, the DST100 sets all bits to a logic 1.

PGN 128275 – Distance Log

The DST100 uses this PGN to indicate the total cumulative distance traveled through the water since installation and the cumulative voyage distance traveled through the water since the last reset. The distances through water are accumulated and the values are periodically stored in memory.

 

Field 1:    Measurement Date – This field is not used by the DST100; therefore, it transmits a value of 0xFFFF (65,535) for this field (which represents “data not available”).

           2:    Measurement Time – This field is not used by the DST100; therefore, it transmits a value of 0xFFFFFFFF (4,) for this field (which represents “data not available”).

           3:  Total Cumulative Distance – This field indicates the total distance traveled through the water since the DST100 was installed in units of 1 m.

           4:  Distance Since Last Reset – This field indicates the total distance traveled through the water since this parameter was last reset.  This is most commonly reset at the beginning of a voyage and then reflects the total distance traveled in that voyage.  The unit of measurement for this field is 1 m.


DST100 NMEA 2000® Received PGNs

 

PGN 126208 – NMEA Command Group Function – Offset Calibration

This will set the offset for the water depth measurement.  The user has a choice of two types of offset to program into the DST100’s depth transducer. Positive values of offset indicate the depth of the transducer below the waterline. Negative values of offset indicate the depth of the bottom of the boat’s keel below the DST100’s depth transducer.

 

Field  1:  Complex Command Group Function Code (8 bits) – set this field’s value to 0x01, which denotes a command PGN

           2:  Commanded PGN (24 bits) – set this field’s value to 128267, which denotes the Water Depth PGN

           3:  Priority Setting (4 bits) – set this field’s value to 0x8, which indicates to leave priority settings unchanged

           4:  Reserved (4 bits) – set this field’s value to 0xF, which is the value for a reserved field of this size

           5:  Number of Pairs of Commanded Parameters to Follow (8 bits) – set this field’s value to 0x1, indicating that one parameter will follow

           6:  Number of First Commanded Parameter (8 bits) – set this field’s value to 0x3, which indicates the Offset field

           7:  Offset (16 bits) – set this field’s value to the desired offset value.  Units of measurement for this field are 1x10-3m.  Positive values indicate the depth of the transducer below the waterline.  For instance, if the transducer is located 2.5 m below the waterline, set this field’s value to 2500 (0x09C4).  If the bottom of the keel is located 2.5 m below the transducer, set this field’s value to -2500 (0xF63C).

 

PGN 126208 – NMEA Command Group Function – Distance Log Reset

This command will reset the “Distance Since Last Reset” field of the Distance Log PGN (128275).

 

Field  1:  Complex Command Group Function Code (8 bits) – set this field’s value to 0x01, which denotes a command PGN

           2:  Commanded PGN (24 bits) – set this field’s value to 128275, which denotes the Distance Log PGN

           3:  Priority Setting (4 bits) – set this field’s value to 0x8, which indicates to leave priority settings unchanged

           4:  Reserved (4 bits) – set this field’s value to 0xF, which is the value for a reserved field of this size

           5:  Number of Pairs of Commanded Parameters to Follow (8 bits) – set this field’s value to 0x1, indicating that one parameter will follow

           6:  Number of First Commanded Parameter (8 bits) – set this field’s value to 0x4, which indicates the Distance Since Last Reset field

           7:  Distance Since Last Reset (16 bits) – set this field’s value 0 to reset the Distance Since Last Reset counter to zero.