Instrukcja obsługi SEAFARER 3 - 4
Przeczytaj poniżej 📖 instrukcję obsługi w języku polskim dla SEAFARER 3 - 4 (4 stron) w kategorii Morski. Ta instrukcja była pomocna dla 3 osób i została oceniona przez 2 użytkowników na średnio 4.5 gwiazdek
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SEAFARER 3 - 4
I
NSTALLATION AND OPERATING INSTRUCTIONS
TRANSDUCER INSTALLATION.
WARNING:-The co-axial cable is sealed into the stem
of the transducer and if damaged in any way cannot be reconnected.
Do not shorten or cut
the transducer lead (nominal length 24 feet or 7.3 metres) or extend it by means of co-axial
plugs or any other method.
Any excess cable should be coiled away from excessive heat and
interference from engines or generators.
Transducers with longer cable can be supplied to
special order.
For full depth performance the transducer stem should be mounted as near to 90' from the
horizontal as possible.
Install the transducer in a part of the hull which is as clear as. possible
from aerated or turbulent water and where accidental damage is unlikely to occur.
Normally
a position slightly aft of amidships is preferable.For fin-keel sailing boats it may be
preferable to fully recess the transducer into the stem so that the face is completely flush.
It should be remembered that the angle of sound wave radiation is 45' and so care should be
taken that a false echo is not created by one of the fin keels. If a single transducer is installed
on the centre line of a boat, depth readings will be obtained up to a heel angle of 22#°. If
two transducers are required, to avoid fin-keels for instance, then each should be fitted in
opposite bilges facing outward at an angle of approximately 15°.
By using an automatic
change-over switch, readily available from the manufactures, a twin transducer installation
will enable the Seafarer 3 to give accurate depth readings to heel angle of 37}°.
The following illustration indicates typical transducer installations using a wooden fairing
block outside the hull that has been carefully bored, carved and sanded to a streamline shape
thus avoiding the creation of turbulent water which may reduce or even prevent depth
i
ndication when under way. In one of the examples shown, an internal fairing block has been
used for strength, sealing and to allow for hull curvature.
The installation should he carefully
rendered watertight by using a sealing compound between all mating surfaces.
Do not over-
tighten the nuts on the transducer stem.
Do Not Shorten
Cable Length
Water Line
Stem Fitting
Bilge
Mounting
Not to
Scale
.
Transducer
Head
Embedded
in
Mastic
Sealing
Compound
Level Fitting to Avoid
Water Turbulence
1 d [lia.
"
S
---
mm.
The water exposed face of the transducer may be painted with one thin coat of hard racing
copper, carefully applied so that the paint does not form or trap air bubbles.
Take care not
to damage the transducer face or the lead zirconate crystal that it protects.
Accidental damage
to this sealed unit cannot be repaired.
Within hull transducer installation.
As an alternative to mounting the transducer with the face in direct contact with water, it
may be mounted within a glassfibre hull. If this method is chosen it must be accepted that
there will be some reduction in the depth reading capability of the instrument, dependant
upon the quality and thickness of the hull.
In the United Kingdom the following parts are readily available from Builders merchants,
Chandlers and model shops. (Alternatively a complete kit of parts, excluding the transducer,
may be obtained from Electronic Laboratories (Marine) Ltd. or from one of their stockists).
Parts required.
Note:
It is important that transducer housing tube be made from ABS material and not
Polypropylene or Polythene.
(1)
Quantity 1, tube type Z.74 If" 1 /D x Ift. long. (Made by Osma Plastics under the trade
name "Osmaweld").
(2)
Quantity 1, socket Z.104 12" I /D. (Made by Osma Plastics under the trade name
"Osmaweld").
(3)
Quantity 1, socket plug Z.296 1;" 1/D. (Made by Osma Plastics under the trade name
"Osmaweld").
(4)
Quantity 1, tube of polystyrene cement. (As used in the construction of model kits).
(5)
Quantity 1, -} pint castor oil.
(6)
Quantity 1, medium size glassfibre repair kit (obtainable from garages or chandlers).
Method of installation.
(1)
with the boat in 20-30 feet of water, determine a position from inside the hull, ideally
slightly aft of amidships, where the Seafarer gives a reading of the correct depth with the
transducer face pushed hard against the inside of the hull and the gain control turned to
maximum (it will be necessary to wet the face of the transducer with water during this
test to provide a good interface between the transducer and the hull).
The transducer
should be as near vertical as possible during this test.
Operate the engine(s) during the test to see that there is no electrical interference, keeping
the co-axial transducer cable away from the engine(s). If minimal or no interference is
recorded by the Seafarer, mark the chosen transducer position inside the hull after making
sure that it is free of water, grease and oil.
(2)
Cut the 12" 1/D tube to about 4" long.
Again cut the tube, without decreasing the
overall length of 4", to such an angle that it matches the inside curvature of the hull when
positioned vertically.
(3)
Lightly sand the inside surface of part Z.104 and the outside surface of square cut end
of the tube where they will join.
Apply a little polystyrene cement to both surfaces and
fix together.
(4)
Roughen with sandpaper around the outside of the tube at the end that has been cut to an
angle, approximately 12" up from the base. Place the angled end of the tube into the
chosen position inside the hull.
(5)
Carefully mix the glassfibre repair kit to the makers instructions, taking particular note
of the curing temperature requirements.
Spread the mix around the base of the tube
where it meets the hull, taking care that none of the mix spreads to the inside of the tube.
Build up the mix to If" around the base of the tube so that the tube will be held
securely in place when the curing process is complete.
Keep the tube firmly in position
during the curing process taking care not to "rock" it from side to side, thus making a
potential source of leak when the oil is added.
(6)
Drill a 17/32nd" hole in the centre of socket plug (housing cap) Z.296 and a small pilot
hole ;" from the cap periphery to accept a small self-tapping screw.
(7)
Remove the top nut from the threaded transducer stem and take it over the plug at the
end of the co-axial cable.
Leave the second nut in a position approximately half-way
down the transducer stem.
Thread the co-axial plug and lead through the hole in the
housing cap.
Push the transducer into the housing that is attached to the hull so that
the transducer face touches the hull.
Lightly push the socket cap into position onto the
housing.
(8)
Pass the transducer co-axial plug and cable
through the nut previously removed and
TRANSDUCER STEM
thread the nut down the stem until it touch-
-
TRANSDUCER CABLE
es the housing cap (Do
not
tighten down).
Remove the transducer and cap from the
y
"
housing and tighten the inner nut on the
92 OIA. HOLE
SELF TAPPING SCREW
stem up to the inside of the cap, gripping it
,
i
securely.
SOCKET 2.104
SOCKET PLUG T296
(9)
Half fill the housing with the castor oil,
making sure there are no leaks from the
moulding that joins the housing to the
CASTOR Bit LEVEL `
CEMENT JOINED
hull.
Push the transducer slowly into the
SUOACEG
housing, so that the cap fits securely onto
it.
Screw in the self-tapping screw into
TUBE 2.74-'
'
GLASSFIBRE
the pilot hole in the cap,
HULL
Push the co-axial transducer plug firmly
GLASSFIBRE
into the hack of the instrument.
The
mix
==
WATER
_
--
=
-
TRANSDUCER FACE
system is now ready for use.
V
Notes: (a) By adopting the above method of in hull echo sounding, the pattern of sound
emitted by the transducer remains at approximately 45
°
in a conical shape. If
the transducer and its housing are installed vertically therefore, depth indication
will he given up to a heel angle of 221' (dependant on the thickness of hull
material).
(b) If it is found necessary to take the transducer from the housing, first remove the
self tapping screw to allow air into the housing, thus facilitating withdrawal.
(c)
During the season periodically check the oil level in the housing and top up with
castor oil as required.
Use of liquids other than castor oil may damage the
transducer for which Electronic Laboratories (Marine)
Ltd. will
accept
no
responsibility.
(d)
When under way, a constant stream of aerated water passes across the hull of a
vessel.
The thickness of this aerated water generally increases with speed.
A
point may therefore be reached
when. no
ultrasonic sound wave can penetrate the
stream of air bubbles with the result that no depth indications will be received.
INSTRUMENT INSTALLATION.
WARNING:-The location of the instrument should be
at least 2 feet (60 cms.) from a magnetic compass.
With the bracket provided the instrument may be mounted in any position through 360°
(The bracket is designed to be slightly undersize to ensure a good grip on the case).
This
means it can be facing down from a cabin roof, on top of an instrument panel or console,
or side mounted by the chart table.
Bear in mind that it is a sophisticated item of equipment
and should therefore be positioned where it is unlikely to be severely knocked or subjected
to the full force of climatic extremes.
Without using the bracket an alternative method of mounting is to fully recess the instrument
i
nto a panel or bulkhead using the flush mounting flange provided.
Remove the instrument from its case by releasing the four captive screws at the back. Remove
the two side mounting knobs from the case back by undoing the internal fixing nuts.
Using
the outer rim of the case back as a pattern or template, cut the appropriate size hole in the
panel or bulkhead. Insert the flush mounting flange between the front and back of the case
making certain the rubber sealing grommet is seated in its channel. (See paragraph on Power
Supply. below).
Replace the back of the case and tighten (do not overtighten) the four
captive screws.
Pass the back of the case into the hole so that the flange is flush against the
panel.
Secure the flange into position with six screws.
Connect the transducer lead into the
socket marked "transducer" at the back of the instrument.
Key:
I.
Case front.
2.
Case back.
3.
Rubber sealing grommet.
4.
Flange securing screws.
5.
Flush mounting flange.
6.
Bulkhead hole.
7.
Case securing bolts (4).
8
8.
Side
mounting knobs (re-
5
move for flush mounting).
POWER SUPPLY.
The instrument may be powered by either internal batteries or ships
supply of 12, 24 or 32 volts. The back of the instrument must be removed as described
previously in order to connect whatever power source is selected of the two alternatives
given.
Internal batteries.
The recommended battery is the Ever Ready PP9 or its international
equivalent (Berec PP9, Ever Ready 276, Mazda RO 618, Diamon EB 39, Pertrix 439,
Superpila 995, Tudor 9T1).
Re~~tove the battery clips (on red and black leads) from their
stowage position in the set and clip them onto one of the batteries given above.
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 that the battery or batteries show no sign of corrosion
and always remove them at the end of the season. Should the instrument ever need servicing
do not send it through the post with the battery installed.
Internal
battery check.
Provision has been made to check when the internal battery is
becoming exhausted and should be replaced.
The symptoms are as follows:---
On the "xl" range, the neon lamp brilliance will become subdued.
At the same depth, the depth shown on the "xl" range will be less than that shown on the
"x6" range.
The instrument should then operate only on the "x6" range which will continue
Specyfikacje produktu
| Marka: | SEAFARER |
| Kategoria: | Morski |
| Model: | 3 - 4 |
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