Bedienungsanleitung SEAFARER 5 (Seite 5 von 13) (Englisch)

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TRANSDUCER ANTI-FOULING

Following installation the water exposed face of the

transducer may he painted with one thin coat of hard

Antifouling. carefully applied so that the paint does

not form or trap air bubbles. Care should be taken

not to damage the transducer face or the piezo

electric crystal that it protects. Accidental damage to

this scaled unit cannot he repaired.

WITHIN HULL (GRP) TRANSDUCER

INSTALLATION (Optional)

As an alternative to mounting the transducer

through the hull with the face in direct contact with

the

water. it

may be positioned inside a glass-fibre

htill by means of an In Hull Transducer Kit as shown

n Fig. 2. The In Hull Transducer Kit is available

from most Chandlers and Boatyards, as an optional

extra. The end cap of the In Hull Transducer Kit is

provided with a push-out insert making it suitable for

the stem diameter of both the Seafarer 5 and 700

transducers. This method of installation has the dual

advantage that no hole is made in the vessel's hull

and that the echo sounder and transducer can easily

be removed for examination or installation

elsewhere. It should he mentioned however, that

although the accuracy will in no way he affected by

nstalling the transducer inside the hull, the

maximum range sensitivity may be reduced

depending upon the thickness and quality of the

lass-fibre.

We do not recommend this method of

installation if the thickness of the glass-fibre exceeds

three-quarters of an inch. Neither do we recommend

its use in hulls of wood, steel or aluminium, although

this method of installation has been found acceptable

with these materials in some cases. Full installation

details are supplied with the In Hull Transducer Kit

and copies are available on request to Seafarer

Navigation International Limited.

INSTRUMENT INSTALLATION

WARNING: The location of the instrument should

he at least 2 feet (61 ems) from a magnetic compass.

Repeat meter 1 foot (30 ems).

With the bracket provided the instrument may be

mounted in any position, as the bracket can be

rotated through 360°. (The bracket is designed to he

slightly undersized to ensure a good grip on the

case). This means that it can be facing down from a

cabin roof, or on top of an instrument panel or

console, or side mounted by the chart table. If the

nstrument is mounted outside or in a cockpit. a

sheltered position should be chosen, since although

the instrument is water resistant it is not fully

waterproof. For this reason it is advisable to provide

a cover or some additional protection against

extreme climatic conditions.

FLUSH MOUNTING

An alternative method of mounting is to fully recess

the instrument into a panel or bulkhead using a flush

mounting flange. The template provided with the

operating booklet may he used for making the

appropriate cutout in the bulkhead. Remove the two

plastic side mounting knobs and cut the projecting

screw threads back to the metal flange on each side of

the instrument case. Fit the plastic mounting bezel to

the instrument by slacking the four fixing screws at

the rear of the case sufficient to allow the bezel

(

which is in two halves) to be slipped in between the

front panel and the case. Re-tighten the four screws

trapping the bezel in position. The instrument can

now be pushed into the cutout in the bulkhead from

the front and secured with eight countersunk screws

in the bezel. The outline dimensions of the Seafarer 5

for mounting purposes are shown in Fig. 3.

POWER SUPPLY

The instrument may be powered by either an internal

battery or ship's supply of nominal 12/24 or 32 volts

D.C. without adjustment. The rear battery

compartment cover must be removed to allow access

to the connections. If the instrument is to be powered

from the ship's supply, attention is drawn to the fact

that the internal battery terminals MUST remain

stowed in their stowage position. The unit will not

operate on an external supply unless the battery

terminals are in the stowage position.

Internal Batteries. The recommended battery is

the

Ever Ready PP9 or Vidor VT9 or its

nternational equivalent:

Beret PP9



Diamon 339

Ever Ready 276



Petrix 439

Mazda RO 617



Superpila 995

Tudor9Tl

Remove the battery clips (red and black leads)

from their stowage position and clip them on to the

batter in the correct polarity. Red to positive

(

+VE)and black to negative (-V E).

As an alternative two 4.5 volt flat flashlight

batteries of the type with two brass contact strips at

the top may be used with an appropriate adaptor.

During the Season, periodically check the battery or

batteries for signs of corrosion and always remove

hem at the end of the Season. Should the instrument

ever need servicing, remove the battery before

posting.

Ships Supply.

The instrument will accept any

nominal ships supply of 12, 24 or 32 volts D.C.

without adjustment. Damage, however, will he

sustained if a higher voltage is connected or if the

ships supply produces "peaks" in excess of 35 volts.

To connect the instrument, remove the battery

compartment cover and make a small hole in the

sealing grommet marked "external supply" in the

back cover. Thread the power supply cables through

SEAFARER 5 Seite 5

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