Eusonar Praktik 6 Pro 2 User Manual

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Table of contents

INTRODUCTION...........................................................................................................................2

TECHNICAL SPECIFICATIONS OF THE SONAR .................................................................... 4

FIRST AQUANTANCE WITH THE SONAR……………………………………………………4

Sensor-converter and battery compartment………………………………………………. ………5

Unit control…………………………………………………………………………………..……7

Sonar screen……………………………………………………………………………………….9

OPERATION ORDER OF SONAR……………………………………………………..………11

SONAR OPTION MENU………………………………………...……………………………...13

Information display modes……………………………………………………………………….14

FISH ID…………………………………………………………………………………..………14

Pro……………………………………………………………………………………..…………17

Flasher……………………………………………………………………………………..……..18

Depth gauge…………………………………………………………………………………..….19

Fleet water……………………………………………………………………………………..…20

Demo…………………………………………………………………………………………..…20

Info…………………………………………………………………………………………….....21

Ruling of a screen…………………………………………………………………………….…..22

ZOOM……………………………………………………………………………………………22

NOF…………………………………………………………………………………………...…24

ADJUSTEMENTS…………………………………………………………………………….....25

Near-bottom thickness…………………………………………………………………………...25

"WINTER/SUMMER" mode…………………………………………………………………….25

Dead end........................................................................................................................................26

Sound and fish identification.........................................................................................................27

GENERAL RECOMENDATIONS ............................................................................................. 27

COMMON TROUBLES AND REMEDIES ................................................................................ 32

WARRANTY ................................................................................................................................ 34

CONTACT OF SERVICE CENTRE ............................................................................................ 35

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INTRODUCTION

History of fishing amounts to thousands of years. However, in reality each time the

fisherman faces the same challenges: how to find the fish and make it grab the bait. The sonar

cannot make the fish grab the bite, but it is able to solve the problem of finding this fish. You will

never catch the fish there where there is not any – and the sonar of “Praktik” company will help

you make this fact true in the literate sense of this word.

Operating principle of the “Praktik” soner is based on emission of ultra-sonic waves by the

transducer-converter into the water and subsequently receipt of the echo pulses reflected from the

bottom or other objects. The probing beam represents the cone, the top of which is the sensor,

normally located just below the water surface, and the basement is the bottom. When the ultrasonic

wave encounters some obstacle on its way, its part is reflected and comes back to the transducer-

converter which now operates as a receiver and converts the reflected ultra-sound into an electric

signal.

The microcomputer processes the electric signals and prints on the sonar screen the

information on the topography of the bottom and the objects caught in the beam zone. The figures

above show typical pictures on the sonar screen and related information regarding these pictures

in the water depth of the reservoir in winter and summer.

Probing pulsing into the water is performed with frequency adjusted from two to four times

a second. The screen pattern shifts with the same speed. Data from the current echo-pulse will

appear in the right part of the screen and then moves to the left. The display top corresponds to the

water surface, whereas the lower part – to the lower part of the selected depth range.

It is very important to understand that the sonar does not reflect volume (3D) representation

of the water depth but only longitudinal section passing through the middle of the probing cone.

That/s what creates an illusion that all the objects detected by the beam are located under the

sensor.

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Display pattern in winter Winter reservoir

Display pattern in summer Summer reservoir

Sonar models ER-6 Pro2 can reflect as processed information in the format easy for understanding,

as well as unprocessed information (“raw” one which is more difficult for understanding but it is

more informative than in the first case) With the assistance of MENU one can choose the most

suitable type of information representation. If a fish gets in the probing cone of the display mode,

of the processed information, this event will be recorded and the fish outline will show up on the

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display mode of the processed information. Near-bottom structures will look like spots on the

bottom contour. One can understand from the bottom line width if the bottom is dense or muddy,

and guess its structure.

TECHNICAL SPECIFICATION OF THE SONAR

FIRST AQUANTANCE WITH THE SONAR

Model ER-6 Pro2 sonar design is made in two units: electronic and sensor-converter unit

with the battery compartment. The sensor-converter is connected with the electronic unit with

assistance of the cable 2 m long.

Setting functions

Amplification, automatic or manual selection of the depth scale,

identification of the fish, “winter-summer” mode, adjusting

“zoom”, dead zone, “flasher” mode, fleet water.

Measuring depth range, m

0,5–25,0 m (measurement accuracy ±1sm for depth 0.5-10m

and ±10sm for depth from 10-25m )

Probing angle, degree

40°

Display

monochromic, high-contrast, frost-resistant,

resolution128×64 points (5×3sm)

Temperature range, °С

from –15 to +40°C

Power supply

1 element АА (200 operation hours with frequency 2 Hz)

Electronic block size

100×72×23

Sensor-converter size

25×80

Unit weight

170g

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The electronic unit represents the structural design with two control buttons, transparent

window and tightly closed cable not less than two meters long. The level of leak resistance is

compliant with IP 67 standards.

Sensor-converter and battery compartment

The sensor-converter works simultaneously as an acoustic wave emitter as a receiver

(microphone) of echo-signal objects reflected from the bottom. The sensor design is frost-

resistant, leak-proof (IP68). The sensor is screwed into the battery compartment. Pressurization of

the battery compartment is performed with assistance of the sealing silicone ring. When installing

the power supply unit АА it is necessary to observe polarity.

It is advisable to install he battery at home at a warm place. It will ensure avoidance of

appearance of the condensate water in the battery compartment. Take care of the sensor.

Unfortunately it does not float. It sinks and it is expensive. Besides, one should protect it from

severe blows over hard objects.

Under conditions of winter fishing it is desirable to lower the sensor below the underwater

ice edge to avoid appearance of false signals reflected from the vertical walls of the ice-hole.

To save the battery service life it is not recommended to leave the sensor-converter in frost:

when operating is must be wholly into the water, the temperature of which is always positive, and

when the sensor is not used – in a warm place under the clothes.

For correct depth measurement the sensible area of the sensor must be located strictly in

parallel to the water surface. It should be remembered that the bottom depth and other objects are

measured not relatively the water surface but to the sensor, that is why at its big depth the figures

shown by the sonar can differ considerably from the true ones.

The sonar is equipped with the special cable with the cover made of silicone resin,

connecting the electronic unit and the battery compartment with the sensor. This cable will remain

elastic even in the most severe frosts, with which an ordinary rubber cable will lose its elasticity

and can easily crack, thus losing its impermeability.

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In the body of the device there are four fastening openings located along the body angles.

They are designated for fastening the cord and for installation the special furniture on the device

to fasten the sonar to the leg or the sleeve. The furniture is not included in the set.

There is a special bracket for the sensor in the delivery set. Its fastening to the boat is

performed with assistance of the clamp or other accessories. The sensor can be fastened on the

float as well. Fastening of the electric unit to the boat is possible with special holders for mobile

telephones.

Examples of uncomplicated appliances and furniture for the sonar fastening to the floating

craft are shown on our site www.rusonar.ru.

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Unit control

There are two buttons to control the sonar. There functions are described below.

LEFT BUTTON

In operation mode

1. Switching between automatic and manual scale selection modes and “zoom” mode).

2. Illumination on/off (hold down for 5 sec)

In MENU mode:

Current MENU point value correction

Left button in operation mode serves to change over the sonar to one of three operation

modes: automatic scale selection (Auto Range), manual scale selection and “zoom” mode. If

automatic mode is chosen the current scale and “A” letter are reflected in the top right angle, and

if manual one–scale and “M” letter. In “zoom” mode scale is not reflected, instead the magnifier

with the figure mark will be output. If sensibility adjustment is performed it is possible to change

adjustment direction (increase or decrease) with the left button (single push).

If you hold the left button pushed long enough (around 5 sec) the screen illumination will be

switched on or off.

When the sonar is in MENU, the left button corrects MENU current point value.

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RIGHT BUTTON

In operation mode

1. Sonar switch-off (single push)

2. Change-over to MENU (double push)

3. Durable push to adjust sensibility

In MENU mode:

Change-over between MENU points and exit to operation mode

Right button serves to switch on and off the sonar and also to exit MENU and changeover

between its points. The sonar switch-off is performed via single pushing, with this the countdown

figures will appear on the display: 3–2–1. If you push the right button once again during the

countdown, the sonar will change over to MENU mode. To adjust the sonar sensibility in the

operation mode it is necessary to hold the right button pushed, with this the vertical strip

“thermometer” will appear in the left side of the indicator that show change of sensibility. To

change the adjustment direction it is necessary to hold temporarily the left button.

After change over to MENU the right button goes through various MENU items. The sonar

will come back to the operation mode after finishing searching all items.

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Sonar display

Water surface line is shown in the form of the running dotted line.

Digital depth value is updated two-four times a second with resolution ±1sm for depths to

10m and resolution ±10sm for depths from 10 to 25 meters.

Sensitivity indicator visual displays if the right button is pushed and held. Vertical strip

“thermometer” shows sensitivity rude value, and the figure under the depth value shows the exact

sensitivity value. Sensitivity indicator disappears from the screen when releasing the right button.

Sensitivity can be adjusted within the range from 0 to 28 units. Value 12 units is set automatically.

Adjustment direction (increase of decrease) can be changed if you push the left button for the short

moment during adjustment..

Soil density conventionally shows power of the echo-signal reflected from the bottom and

can vary from 0 to 20 units. The higher is the number, the more powerful the signal from the

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bottom (or the high density of the soil), and vice versa, a small number will say that from the

bottom signal is weak (low soil density). With the same reflecting capacity of the bottom, the

density will be reduced with respect to the depth increase because with this the signal becomes

weaker.

Operation range shows what maximum depth can be reflected on the screen at a particular

moment. If there is letter A at the figure, it means that the device is in automatic scale selection

mode and it will be automatically changed when leaving beyond definite limits of the bottom

depth. If there is letter M, it means that the unit operates in the manual scale selection mode: it will

not change even if the bottom approaches considerably to the upper part of the screen or goes

beyond its lower limit. Scale value for this mode is set via MENU. At last, the magnifier symbol

with the figure instead of the operation range indicator informs that the sonar is in mode “zoom”

(it will be described separately).

RTS-window – this is the screen area which reflects all registered echo-signals from the

bottom and other objects without any processing. In the main area of the screen the data processed

by the computer

(bottom line, near-bottom structures and fish symbols) is displayed.

Battery indicator shows the capacity of battery at the given time. It has 12 gradations. If

the last level occurs, the device can operate for several hours, but when restarting the message

“Battery is low” can appear on the display. More accurate battery status can be assessed if you go

to the Info mode, where the battery voltage is specified in volts. The limit value of the battery

voltage at which the sonar can work effectively is 0.85W.

OPERATION ORDER OF SONAR

Total operation order:

1. Turn off (counter clockwise) the sensor from the battery compartment. Insert a new battery

into the battery compartment observing polarity (“plus” must be at the bottom). Put the sensor in

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its place revolving clockwise. It is enough to turn the sensor tight manually for pressurization. Do

not use with this the tool type of pliers.

2. Press the right button. The message greeting will appear of the screen:

“Praktik ER-6 Pro2 Lucky fishing”,

which further on will be moved to the left on the screen.

ATTENTION!

 If the sensor is not screwed tightly enough in the battery compartment, then the on the

display will appear a warning message “SENSOR?”. The same message will appear if a

cable is damaged.

 After installing the batteries, it is recommended that you restart the device, so it will return

to the factory settings. Press and hold the left button and then press the right button for 1-

2 seconds. The message “OK” will appear on the display, and the following factory

settings will be installed:

 – scaling: image auto-scaling mode;

 – amplification: 12 (from 28 units);

 – screen scale for its manual selection mode: 7 meters;

 – screen view: fish definition mode and window RTS;

 – fish identification and sound: are on;

 – near bottom layer depth in “zoom” mode: 2 meters

 - dead zone: 05-1 meter

 “Winter/Summer” mode: summer

Resetting can be made in the different time, but only when the device is turned off.

Note: if battery was inserted earlier, then it is necessary to press the right button once to turn on

the sonar. All previously installed modes by doing so are saved.

3. Put the sensor into the water with assistance of the cable. It is desirable to put the sensor

fully below the ice edge in winter to avoid extreme cooling of the battery and offset of noise signal

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of the ice-hole. After the sensor contacts the water the appearance of micro-bubbles on its sensible

surface is possible which can strongly dissipate registering signals and thus reduce sensibility and

mispresent the true picture. It is required to remove the bubbles plunging the sensor for several

times or rub the sensor surface with your fingers after plunging it into the water.

4. If the sensor is immobile the bottom on the screen will be imaged in the shape of even

line. With small depth and the bottom with good reflecting capacity in consequence of the multiple

re-reflecting signal from the bottom and the water surface appearance of several “bottom” lines

parallel to the true bottom and laying on the depths divisible by the true bottom depth is possible.

If the fish is caught in the beam cone the sound signal will go off, and the fish sign on the

corresponding depth will appear.

5. If the sensor is fixed on the moving boat, then the configuration of the bottom and the

near-bottom structures under the boat will be picked in. if the fish swims through the beam cone

the signal will ring out and the mark on the relative depth on the screen will appear.

6. To switch off the device it is necessary to press the right button one-time. Upon completion

of the countdown the sonar will be switched off.

7. If the sonar is in operation mode for more than four hours and none of the buttons is not

pushed for this time the sonar will be switched off automatically.

8. For durable switch off of the sonar it is recommended to de-energize it fully removing the

battery because it consumes energy even if it is switched off. Power consumption is miserable,

but low-quality batteries with this discharging current may increase in size and may damage the

battery compartment.

ATTENTION! Don’t leave the battery for the long period of time (inter-season) in the

battery compartment.