THROUGH HULL - Sonar transducer NAVMAN - Free user manual and instructions

Product Type	Through Hull Sonar Transducer
Brand	NAVMAN
Model	THROUGH HULL (sensor series)
Available Materials	Plastic or bronze depending on model
Mounting Types	Removable or fixed
Drilling Diameter	22 mm to 63.5 mm depending on model
Maximum Hull Thickness	Up to 110 mm (depending on model)
Cable Length	8 m to 10 m depending on model
Available Connectors	Audio RCA, LT 6-pin, LT 8-pin, Fuji 4-pin
Main Functions	Depth measurement, water temperature, speed (on dedicated models)
Power Supply	Powered by the navigation instrument via the cable
Installation	Drilling the hull, bonding with polyurethane sealant (Sikaflex 252 recommended)
Maintenance and Cleaning	Clean with a damp cloth or mild detergent. Do not use solvent, gasoline, or high-pressure cleaner
Safety	Choose a location that is constantly submerged without turbulence, forward of the keel.
Spare Parts and Repairability	Extension cables (4 m, 20 m), paddlewheel, hull fitting. Removable sensors are replaceable; fixed sensors require full replacement.
Hull Compatibility	Plastic not compatible with wooden hulls; bronze not compatible with metal hulls
Warranty	See Navman NZ Limited terms

Frequently Asked Questions - THROUGH HULL NAVMAN

How to choose the location of the through-hull transducer?

Place the transducer permanently submerged, away from turbulence, forward of the keel and hull openings. Ideally in the center of the hull and as low as possible, with a slight hull slope.

What drilling diameter for my transducer?

The hole diameter depends on the transducer model. Refer to the manual tables: diameters vary from 22 mm to 63.5 mm. For example, plastic transducers often have 51 mm.

Can I use a plastic transducer on a wooden hull?

No, plastic transducers cannot be mounted on wooden hulls. Use a bronze model if necessary (check compatibility with metal hulls).

How to install a removable transducer?

Drill a hole of the appropriate diameter, remove the lock nut and the transducer from the hull fitting. Apply sealant under the flange, insert the hull fitting from the outside, tighten the nut. Grease the transducer's O-rings, insert it aligning the arrows, then replace the lock nut.

How to clean the transducer without damaging it?

Use a damp cloth or mild detergent. Never use abrasive products, gasoline, solvents, or a high-pressure cleaner, especially on the paddlewheel of the speed sensor.

Which adhesive to use for installation?

The manual recommends Sikaflex 252 (polyurethane sealant). For internal mount transducers, a semi-rigid slow-curing epoxy adhesive may also be suitable.

Can I paint the transducer?

No, do not paint the transducer. If you repaint the hull, cover or remove any speed sensor present. Paint can affect performance.

What to do if the transducer gives no reading?

Check the wiring and connections to the instrument. Ensure the cable is away from sources of interference. For an internal mount transducer, test the location with a water bag before permanently bonding.

Can the transducer cable be extended?

Yes, but only with Navman extension cables (4 m for speed/temperature sensors, 4 m or 20 m for dual-frequency transducers). Never cut the transducer cable.

Where to find spare parts?

Contact your local Navman dealer. Accessories include extension cables, replacement paddlewheel, and hull fitting. Subsidiary contact information is at the end of the manual (e.g., Navimo France).

USER MANUAL THROUGH HULL NAVMAN

Note: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a normal installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

Reorient or relocate the receiving antenna
- Increase the separation between the equipment and receiver
- Connect the equipment into an output on a circuit different from that to which the receiver is connected
- Consult the dealer or an experienced technician for help
- A shielded cable must be used when connecting a peripheral to the serial ports.

Important

It is the owner's sole responsibility to install and use Navman's transducers in a manner that will not cause accidents, personal injury or property damage. The user of this product is solely responsible for observing safe boating practices.

Transducer installation: The choice, location, angle and installation of the transducer is the most critical part of installation. If installation is not correct, the unit can not perform at its designed potential. If in doubt, consult your Navman dealer. Ensure that any holes that cut are in a safe position and will not weaken the boat's structure. If in doubt, consult a qualified boat builder.

Disclaimer: The information in this manual is provided as a guide only. The transducer's performance is influenced by the boat's material, hull design and engine installation and these are beyond the control of Navman NZ Limited.

NAVMAN NZ LIMITED DISCLAIMS ALL LIABILITY FOR ANY USE OF THIS PRODUCT IN A WAY THAT MAY CAUSE ACCIDENTS, DAMAGE OR THAT MAY VIOLATE THE LAW.

Governing language: This statement, any instruction manuals, user guides and other information relating to the product (Documentation) may be translated to, or has been translated from, another language (Translation). In the event of any conflict between any Translation of the Documentation, the English language version of the Documentation will be the official version of the Documentation.

This manual represents the transducer installation procedures as at the time of printing. Navman NZ Limited reserves the right to make changes to specifications without notice.

Copyright © 2003 Navman NZ Limited, New Zealand, all rights reserved. Navman is a registered trademark of Navman NZ Limited.

Contents

1 Introduction 3

1-2 Cleaning and maintenance 3
1-1 Wiring 3

2 Through hull transducers 4

2-1 Positioning a through hull transducer 6
2-2 Installing a through hull transducer 6

3 In-hull depth transducer 8

3-1 Positioning an in-hull transducer 8
3-2 Installing an in-hull depth transducer 9

1 Introduction

This manual describes how to install:

Navman's range of through hull depth and speed/temperature transducers
Navman's in-hull depth transducer.

Accessories

These accessories are available from your Navman dealer:

4 m (13 ft) speed/temperature transducer extension cable
4 m (13 ft) depth transducer extension cable for both single and dual frequency units
- Replacement speed/temperature transducer hull fitting
- Replacement speed/temperature transducer paddlewheel
20 m (65 ft) dual frequency depth transducer extension cable.

1-1 Wiring

Each transducer has a cable to connect it to the navigation instrument. When fitting this cable:

• Keep the cable away from other cables and equipment (for example fluorescent lights, power inverters and VHF transmitters.)
• Do not cut the cable on any depth transducer
  If necessary, extend the cable by adding a Navman 4 m (13 ft) extension cable (a

maximum of one cable can be used). For dual frequency transducers, a 20m (65 ft) extension cable is available.

Ensure no cable connectors lie in the bilge

• Secure the cable at regular intervals
  Refer to the navigation instrument's installation manual for instructions on how to connect the cable to the instrument.

1-2 Cleaning and maintenance

Clean a transducer with a damp cloth or mild detergent. Avoid abrasive cleaners and petrol or other solvents.

When repairing the hull, cover or remove any speed transducers. Do not paint the transducer.

Do not use a high pressure water blast on the speed transducer paddlewheel as it may damage the bearings.

2 Through hull transducers

Depth transducers:

Part # - Europe	25983	26032	31357	31358	Not available
Part # - Rest of World	Not available	AA002155	Not available	AA002106	AA000043
Material	Plastic	Plastic	Plastic	Bronze	Bronze
Type (1)	Insertable	Fixed	Fixed	Fixed	Fixed
Connector	RCA phono	RCA phono	RCA phono	RCA phono	RCA phono
Hull hole diam.	17/8" (48 mm)	15/8" (42 mm)	2" (51 mm)	2" (51 mm)	7/8" (22 mm)
Max. hull thickness	23/8" (60 mm)	15/8" (42 mm)	7/8" (22 mm)	23/8" (60 mm)	25/8" (92 mm)
Cable length	26.2 ft (8 m)	26.2 ft (8 m)	26.2 ft (8 m)	26.2 ft (8 m)	29.5 ft (9 m)
Flush or long stem	Flush	Flush	Flush	Flush	Long stem

Part # - Europe	47535	47512	Not available
Part # - Rest of World	AA002108	AA002107	AA002109
Material	Bronze	Plastic	Bronze
Type (1)	Fixed (Dual freq.)	Fixed (Dual freq.)	Fixed (Dual freq.)
Connector	6-pin LT	6-pin LT	6-pin LT
Hull hole diam.	2½" (63.5 mm)	2½" (63.5 mm)	1 1/6" (27 mm)
Max. hull thickness	3¼" (80 mm)	2¼" (56 mm)	4¾" (110 mm)
Cable length	33 ft (10 m)	33 ft (10 m)	33 ft (10 m)
Flush or long stem	Flush	Flush	Long stem

Notes

1 With an insertable transducer, the transducer element can be removed, leaving the hull fitting in place in the hull. With a fixed transducer, the transducer element and hull fitting can not be separated.

Caution

• Plastic through hull transducers are not suitable for wooden hulls.
• Bronze transducers are usually unsuitable for metal hulls.

Speed/temperature transducers:

Part # - Europe	25982	40640	26017	40641
Part # - Rest of World	Not available	Not available	AA002150	AA002082
Material	Plastic	Plastic	Plastic	Bronze
Type (1)	Insertable	Insertable	Insertable	Insertable
Connector	4-pin Fuji	8-pin LT	4-pin Fuji	8-pin LT
Hull hole diam.	17/8" (48 mm)	17/8" (48 mm)	15/8" (42 mm)	15/8" (42 mm)
Max. hull thickness	23/8" (60 mm)	23/8" (60 mm)	15/8" (42 mm)	15/8" (42 mm)
Cable length	26.2 ft (8 m)	26.2 ft (8 m)	26.2 ft (8 m)	26.2 ft (8 m)
Flush or long stem	Flush	Flush	Flush	Flush
		Same as 25982, but with 8-pin LT connector		Same as AA002150 / 26017, but with 8-pin LT connector

Part # - Europe	31359	47552
Part # - Rest of World	AA000055	AA002151
Material	Bronze	Bronze
Type (1)	Insertable	Insertable
Connector	4-pin Fuji	8-pin LT
Hull hole diam.	2" (51 mm)	2" (51 mm)
Max. hull thickness	2½" (55 mm)	2½" (55 mm)
Cable length	29.5 ft (9 m)	29.5 ft (9 m)
Flush or long stem	Flush	Flush
	Same as AA000055 / 31359, but with 8-pin LT connector

Notes

1 With an insertable transducer, the transducer element can be removed, leaving the hull fitting in place in the hull. With a fixed transducer, the transducer element and hull fitting can not be separated.

Caution

• Plastic through hull transducers are not suitable for wooden hulls.
• Bronze transducers are usually unsuitable for metal hulls.

2-1 Positioning a through hull transducer

This transducer will be fitted in a hole drilled in the bottom of the boat. Select a position for the transducer that has a smooth flow of clear water over the transducer surface at all times. This means that the transducer should be ahead of any keel, hull projections, hull openings, paddle wheel transducers, propellers or propeller wash. If the bottom of the boat is painted and the boat has been used, do not mount the transducer where the paint is eroded (an indication of turbulence).

In addition, position the transducer:

• as close to the middle line of the hull as possible and as deep as possible
  where the deadrise angle is small
  with sufficient space inside the hull for access and wiring
  so that it will not interfere with launching or retrieving the boat

Ideally a depth transducer should be fitted so that its axis is vertical, however it can be up to 15^ off vertical.

Planing or displacement boat

2-2 Installing a through hull transducer

1 Select a suitable position for the transducer (see section 2-1).

If the hull panel is too thin or the panel might not be strong enough, consider fitting a reinforcing pad on the inside of the hull.

2 Find the hole size required for the transducer from the table above. Drill or cut the hole in the hull. The hole must be perpendicular to the hull surface.
3 For an insertable transducer:

remove the locking nut or pin rom the fitting
ii pull the transducer out from the hull fitting
iii unscrew the nut from the hull fitting.

For a fixed transducer:

i unscrew the nut from the hull fitting
ii hold the nut just inside the hole in the hull
ii feed most of the transducer cable through the hole in the hull (from the outside) and through the nut.

4 Apply a thick layer of flexible bedding compound (such as Sikaflex) to the

Insertable transducer

Fixed transducer

hull fitting on the inside face of the flange and on the exterior threads where they pass through the hull.

5 Insert the hull fitting into the hull from outside. For a speed/temperature transducer, rotate the fitting until the arrow on the outside lip points forward to within 5^ .
6 Fit and tighten the nut on the hull fitting. For a plastic fitting, hand-tighten the nut and do not over tighten. For a bronze fitting, tighten with slip-joint pliers. Tighten the nut until excess bedding compound is squeezed out from under the nut and the face of the hull fitting. Remove the excess bedding compound.
7 For a speed/temperature transducer, check that the arrow on the hull fitting still points forward.
8 For an insertable transducer: i ensure there is a thin layer of silicone grease or O-ring lubricant on the transducer O-rings ii insert the transducer back into the hul fitting, rotating the transducer so that the arrow on the transducer mates with the notch on the fitting iii replace the locking nut or pin.
9 Wait for the bedding compound to dry.
10 Before leaving the boat unattended, check that there is no water ingress from around the transducer.

Bedding compound

View from bottom
Arrow faces forward to within 5^

Insertable transducer
Grease Insert
Replace locking nut or pin

3 In-hull depth transducer

One in-hull transducer is available, a depth transducer.

Part # - Europe	27948
Part # - Rest of World	AA002161
Material	Plastic
Connector	RCA phono
Max. hull thickness	3¼" (20 mm)
Cable length	26.2 ft (8 m)

Caution

In-hull depth transducers are only suitable for solid GRP hulls up to 14 (20 mm) thick, without air pockets, beads or voids. They are not suitable for wooden, metal or sandwich hulls. Compared to other types of transducer, in-hull depth transducers generally have lower performance because power is absorbed in the hull.

3-1 Positioning an in-hull transducer

This transducer will be glued to the inside of the bottom of the boat. Select a position for the transducer that has a smooth flow of clear water under the transducer at all times. This means that the transducer should be ahead of any keel, hull projections, hull openings, paddle wheel transducers, propellers or propeller wash. If the bottom of the boat is painted and the boat has been used, do not mount the transducer where the paint is eroded (an indication of turbulence).

In addition, position the transducer:

• as close to the middle line of the hull as possible and as deep as possible
  with sufficient space inside the hull for access and wiring
  where the inside surface of the hull is flat and smooth and there will be no gaps between the face of the transducer and the hull.

The face of the transducer is angled. When fitting the transducer, rotate the transducer so that the axis of the transducer is as close to vertical as possible.

Ideally the transducer should be rotated so that its axis is vertical, however it can be up to 15^ off vertical.

3-2 Installing an in-hull depth transducer

1 Select a suitable position for the transducer and establish how the transducer should be rotated so that the axis is as vertical as possible (see section 2-1).
2 Test the transducer at this position with the boat in the water before mounting it permanently:

i Partially fill a thin plastic bag with water, place the transducer inside and close it tightly around the cable with a tie-wrap.
ii Install the depth instrument as described in the instrument's Installation and Operation manual.
iii Wet the surface of the hull and press the transducer against the inside of the hull where you plan to mount the transducer.
iv Check that the instrument measures depth correctly and consistently, up to the maximum depth specified for the instrument. If necessary, move the bag around the hull to find the best position.

3 Choose an adhesive or sealant to glue the transducer to the hull. Hard epoxies transmit the transducer signals best but temperature changes and hull flexing can cause delamination. As a compromise, use a viscous slow cure, fairly rigid epoxy or Sikaflex 252 sealant.

4 Ensure the inside of the hull where the transducer will be mounted is flat. Clean, degrease and dry:

the inside of the hull where the transducer will be mounted
the sloping face of the transducer

5 Fit the transducer:

i Apply the epoxy or sealant to the middle of the transducer face.
ii Press the transducer into place on the hull.
iii Twist the transducer back and forth to expel any trapped air and to expel as much glue as possible from the joint.

The finished joint should be as thin as possible and not contain any air bubbles.

Leave the transducer rotated to the correct angle.

iv Temporarily secure the transducer in place with tape and wait for the glue to cure for 24 hours.

Glue

Important

Transducer insertable

Appendix - How to contact us

www.navman.com

NORTH AMERICA

Navman USA Inc.

30 Sudbury Rd, Acton, MA

01720

Toll Free: [phone]

Fax: [phone]

e-mail:

[e-mail]

web: www.navman.com

AUSTRALIA

Navman Australia Pty. Limited

Unit 2 / 5-13 Parsons St.

Rozelle, NSW 2039. Australia.

Ph: [phone]

Fax: [phone]

e-mail: [e-mail]

web: www.navman.com

OCEANIA

New Zealand

Absolute Marine Ltd.

Unit B, 138 Harris Road,

East Tamaki, Auckland.

Ph: [phone]

Fax: [phone]

e-mail:navman@absolutema

fine.co.nz

Papua New Guinea

Lohberger Engineering,

Lawes Road, Konedobu.

PO Box 810, Port Moresby.

Ph: [phone]

Fax: [phone]

e-mail: [e-mail]. pg

web: www.lohberger.com/pg

SOUTH AMERICA

Argentina

Costanera Uno S.A.

Peaceful Marine Electronics

Co.Ltd.

Guangzhou, Hong Kong

Dalian, Qingdao, Shanghai

1701 Yanjiang Building

195 Yan Jiang Zhong Rd.

510115

Guangzhou, China.

Ph: [phone]

Fax: [phone]

e-mail: sales@peaceful-

marine.com

web: wwwpeaceful

marine.com

India

Access India Overseas Pvt. Ltd.

A-98, Sector 21

Noida - 201 301, India.

Ph: [phone]

TeleFax:[phone]

Mobile: [phone]

e-mail:

[e-mail]

Esmario Export Enterprises

Block No. F-1, 3rd Floor, Surya

Towers

Sardar Patel Rd, Secunderbad

500003

Ph: [phone]

Fax: [phone]

e-mail:

[e-mail]

web: www.esmario.com

Indonesia

Polytech Nusantara.

Graha Paramita 2nd Floor

Jin Denpasar Raya Blok D2

Kav 8 Kuningan, Jakarta

12940

Ph: [phone]

Fax: [phone]

e-mail:

[e-mail]

Korea

Kumhomarine Technology

Co.Ltd

604-842.2F,1118-15

Janglim1-Dong.

Saha-Gu, Busan, Korea.

Ph: [phone]

Fax: [phone]

e-mail:

[e-mail]

web: www.kumhomarine.com

Maldives

Maizan Electronics Pte. Ltd.

Henveyru, 08 Sosunmagu.

Male', Maldives.

Mobile: [phone]

Ph: [phone]

Fax: [phone]

e-mail:

[e-mail]

Singapore, Malaysia, Brunei

Indonesia and Phillipines

RIQ PTE Ltd.

Blk 3007,81 Ubi Road 1,#02-

440, Singapore 408701.

Ph: [phone]

Fax: [phone]

e-mail: [e-mail]

Taiwan

Seafirst International

Corporation

No.281,Hou-An Road,Chien

Chen Dist. Kaohsiung, Taiwan

R.O.C.

Ph: [phone]

Fax: [phone]

e-mail: [e-mail]

web: www.seafirst.com.tw

Thailand

Thong Electronics (Thailand)

Co.Ltd

923/588 Ta Prong Road.

Mahachai, Muang.

Samutsakhon 74000, Thailand.

Ph: [phone]

Fax: [phone]

e-mail: sales@thongelectro

nics.com

[e-mail]

m

web:

www.thongelectronics.com

Vietnam

Haidang Co. Ltd

1763 Le Hong Phong St.

Ward 12

District 10, Ho Chi Minh City.

Ph: [phone]

Fax: [phone]

e-mail: [e-mail]

web: www.haidangvn.com

MIDDLE EAST

Lebanon and Syria

Balco Stores

Balco Building, Moutran Street,

Tripoli (via Beirut). - Lebanon

P.O.Box:622

Ph: [phone]

Fax: [phone]

e-mail: [e-mail]

United Arab Emirates

Kuwait, Oman, Iran, Saudi

Arabia, Bahrain

Abdullah Moh'd Ibrahim

Trading, opp Creak Rd. Baniyas

Road, Dubai.

Ph: [phone]

Fax: [phone]

e-mail: [e-mail]

AFRICA

South Africa

Pertec (Pty) Ltd (Coastal)

Division)

16 Paarden Eiland Road

Paarden Eiland, 7405

PO Box 527

Paarden Eiland, 7420

Cape Town, South Africa.

Ph: [phone]

Fax: [phone]

e-mail: [e-mail]

web: www.pertec.co.za

EUROPE

France, Belgium and

Switzerland

Plastimo SA

Hamilton Business Park

Bailey Road, Hedge End

Southampton, Hants S030

2HE

Ph: [phone]

Fax: [phone]

e-mail: [e-mail]

web: www.plastimo.co.uk

Sweden, Denmark, Finland

and Norway

Navimo Nordic

Lundenvagen 2,

473 21 Henan

Ph: [phone]

Fax: [phone]

e-mail: [e-mail]

web: www.plastimo.se

Spain

Navimo Espana

Other countries in Europe

Plastimo International

56325 Lorient Cedex, France.

Ph: [phone]

Fax: [phone]

e-mail:

plastimointernational@plas

timo.fr

web: www.plastimo.com

REST OF WORLD/

MANUFACTURERS

Navman NZ Limited

13-17 Kawana St

Northcote

P.O.Box 68155

Newton.

Auckland.

New Zealand.

Ph: [phone]

Fax: [phone]

e-mail

[e-mail]

web: www.navman.com