Venterior VT-FF003 User manual

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OPERATION MANUAL
Venterior VT-FF003 Portable Fish Finder
Model Number: VT-FF003 Brand Name: Venterior
Country of origin: China
Read this manual completely before attempting to use
this product. Visit our website or write to
[e-mail] for further assistance
and technical support.
FCC Warning Statement
This device complies with Part 15 of the FCC Rules.
Operation is subject to the following two conditions: (1)
this device may not cause harmful interference, and (2)
this device must accept any interference received,
including interference that may cause undesired
operation.

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Package Includes :
Fish Finder Display
Sonar Sensor (Transducer) with 25ft cable
Removable Transducer Float with Rubber Stopper
Transducer Side-ScanAdapter
Stainless Bolt and Wing Nut
Neck Strap
Operation Manual
Important:
1.The fish finder uses 4 x AAA batteries(not included).
2. If you are going to be using the unit in temperatures
below 20°F (-7°C) you must use Lithium ‘AAA’ Batteries.
Cold temperatures significantly reduce the power output
of Alkaline batteries, which will inhibit the performance of
the unit.
3. Never mix different brands of batteries. Never mix new
and used batteries (alkaline, lithium, argon zinc, &
rechargeable). Never use damaged batteries. Remove
batteries during storage. Remove dead batteries
immediately.
INTRODUCTION TO THE FISH FINDER
FISH FINDER DISPLAY
1. Water Temperature
2. Sensitivity Setting
3. Battery Save On/Off
4. Fish Alarm On/Off
5. Backlight On/Off
6. Battery Strength Indicator
7. Fish Depth Indicator

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8. Fish Location Indicator
9. Bottom Contour Indicator/Rock Indicator
10. Weed Indicator
11. Water Depth Readout
TURNING ON/OFF AND SIMULATION MODE
1. To turn the Power On, press and hold the Power Key
for 2 seconds.
2. To turn the Power Off, Press and Hold the Power Key
for 3 seconds.
3. During normal operation the screen can be refreshed
by pressing the Power Key. Use this feature if inconsistent
readings are evident.
4. To enter the Simulation Mode hold the Power key
for 5 seconds while the power is off. Release the Power
key once the display turns on. The unit is now in
Simulation Mode and must be turned off to enter normal
operation.
Note: 1. The fish finder has an automatic “power-off”
feature to prevent battery drain if you accidentally leave
the unit on. When the depth display reads “---”
continuously for 5 minutes, the display will shut off
automatically. 2. The monitor must be turned off first to
enter normal operation from simulation mode.
FEATURE SETUP
•Press and Hold the Key for 3 seconds.
•The Sensitivity Indicator ( ) on the screen will blink.
•Press the key again to cycle and select the right
Sensitivity setting for the water.
•Press other features ( , , , ℉&FT/℃&M ) keys

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accordingly to setup the fish finder.
• The screen will automatically return to normal operation
after 5 seconds if no keys are pressed.
• When a feature is activated, the indicator will appear.
When a feature is deactivated, it will have an “/” over it.
SENSITIVITY
There are 5 user selectable sensitivity settings to choose
from. It greatly depends on the clarity and depth of the
water. Very clear water allows for a moderate sensitivity
setting. Conversely, dirty water requires a higher
sensitivity setting to target detail but will increase the
irritating false readings. Targeting deep water fish
generally requires higher sensitivity, especially in dirty
water. Salt and brackish water also require a
comparatively higher sensitivity setting. As the sensitivity
is enhanced, smaller details show on the screen (but
trash & debris might be detected as fish). The clearer the
water, the less sensitivity needed to get accurate details
and vice-versa.
BACKLIGHT
Turning the backlight feature ON will keep the screen
illuminated all the time. But it will greatly reduce the
battery life, so it’s suggested to only turn it on during low
light conditions.

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When the backlight feature is set to OFF, the backlight will
only illuminate for 3 seconds whenever a key is pressed.
FISH ALARM
An alarm sounds when a group of fish are detected. The
alarm feature could be turn off if you prefer quiet fishing.
BATTERY SAVE MODE
When the Battery Save Mode is ON, the fish finder will
only send a sonar pulse every 3 seconds, instead of 3
sonar pulses every one second. This mode only updates
the display every 3 seconds and should not be used while
actively targeting fish. It’s useful for monitoring changes in
depth and bottom contour in 3 second intervals. The
screen can be refreshed by pressing the Power Key.
UNITS OF MEASURE
There are two sets of measure units: ℉&FT, or ℃&M.
The default unit of measure is ℃&M for temperature and
depth. It can be changed to ℉&FT as per the previous
instructions.
Water Depth Readout
The depth readout on the bottom left corner of the screen
will appear after the power is turned ON and the sonar
sensor is placed in water between 2 feet and 328 feet (0.6
to 100 Meters). If the depth exceeds these range, the
depth readout will indicate “---”.
The reading “---”may also occur in water that is extremely
dirty, or where there are heavy silt or mud bottoms. Sonar
is a sound signal that travels through water. Sonar will not
travel through air. So the smallest air bubble between the

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sonar sensor and the water will cause the unit to operate
incorrectly.
Note: The depth is measured from the sonar sensor, not
the float(water surface).
Water Temperature
The Temperature readout on the upper left corner of the
screen will appear after the power is turned ON and the
Sonar Sensor is placed in water. The readout is incorrect
if the Sonar Sensor is not in water.
Fish Location
If the fish finder determines that sonar has detected a fish,
the display will show a fish shaped
icon. The first column of fish
indicators on the right of the
display shows the most current
information. This icon is then
moved to the left as a new reading
is displayed. This motion in no
way reflects actual movement of
the fish.
Fish Depth
How to figure out the depth of the
fish? This can be done by dividing
the depth reading by 10.
For Example: The depth is 20M, the
fish icon appears in the 5th box from
the top. This means the fish is 10M
from the Sonar Sensor.
Weeds Indicator

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A B C
A. Short weeds are depicted by turning on the weeds
indicator A.
B. Moderately tall weeds are depicted by turning on the
indicator B.
C. Tall weeds are depicted by turning on the indicator C.
Rock Indicator
AB C
A. Sandy or muddy with no rock, debris or contour.
B. Moderately pile of rocks, or uneven bottom contour.
C. large pile of rocks or trees or ledges at the bottom.
How the Fish Finder Finds Fish?
The system uses sonar to locate and define
structure, bottom contour, composition, and
depth directly below the transducer. It
transmits a sound pulse from the sonar
sensor, and then measures the time it takes
for the echoes to return to the sonar sensor.
Different objects in water echo the pulse at a
different intensity. The built-in computer then
organizes all of this information and shows it
on a display screen.
SONAR SENSOR FLOAT
The Sonar Sensor float must be adjusted. Pull out the
rubber stopper. Adjust float so that it is 7 to 10 inches
from the sensor, or at your desired depth(a minimum of 7
inches). Replace the rubber stopper by pressing it firmly

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into the float.
Note: In calm water, the sonar sensor
can be set at a level which will provide
the maximum amount of sonar
coverage. In rough water, the sonar
sensor may need to be lowered into the
water further to provide stabilized
readings.
USING THE FISH FINDER WITH FLOAT
1. Place the sonar sensor and float in your hand, and toss
underhand. Do not throw the sensor by the cable as this
will cause irreparable damage.
2. Use a pole to guide the sonar sensor to a desirable
position
3. Add a float kit on the cable to allow the cable to float on
top of the water.
4. Neatly wind up the excess cable.
Note: 1. If you do not have a need for the sonar sensor
float, it can be removed. 2. Do not allow the cable to sink
to the bottom as it may become entangled in debris.
USING THE FISH FINDER WITH ADAPTER
Your fish finder includes a combination Side-Scan
adapter & mounting bracket for the Sonar Sensor.
A. The Adapter includes mounting bracket so that you can
attach it to any flat surface or boat hull.

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B. The Adapter is removable and adjustable up to 180
Degrees.
FISHING FROM A BOAT
There are 3 methods that the fish finder can be used from
a boat:
1. Toss the sensor and float into the water as per the
previous instructions.
2. Attach the Side-Scan Adapter to the boat hull using the
mounting tabs. Please keep in mind that while using this
method, the fish finder is unable to function properly at
boat speeds over 5 mph.
3. Attach the sensor to a handle, lower the sensor into the
water.
Note: The Sonar Sensor should be placed in water.
ICE FISHING
To achieve the best performance for ice fishing, you
should cut a hole through the ice and place the sonar
sensor directly in the water. If you would like to check the
area for depth or fish before cutting the hole, please follow
steps.
1. Clear away snow to expose the ice surface. The ice
MUST be clear, free from air bubbles, voids, cracks, etc.
2. Place a small amount of liquid water on the ice and set

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the sonar sensor on the water, allowing the unit to freeze
to the ice.
3. If there are any air between the sonar sensor and ice,
or the water below the ice, the unit will not work properly
and will require you to try another spot, or cut a hole in the
ice to use.
Note: To remove the sonar sensor from the frozen ice,
spray a small amount of water on the ice surface around
the base of the sonar sensor and gently tap the sensor
until the sensor is easily removed. Never use a blunt
object to strike the sonar sensor as this may cause
damage to the sensitive internal electronics.
STORING YOUR FISH FINDER
1. Remove the batteries from the fish finder before storing
to prevent battery leakage and corrosion.
2. Clean the sonar sensor and cable with fresh water and
dry off. Do not submerge or spray the fish finder screen
with water.
3. Never leave the fish finder in temperatures over 113°
Fahrenheit (45°Celsius) as the extreme temperatures
can damage the electronic components.
4. Keep the unit in temperatures above 14°Fahrenheit
(-10°Celsius) during operation. The sonar sensor cable
becomes very stiff under cold conditions. So do not wind
or unwind the cable in temperatures below 32°Fahrenheit
(0ºCelsius).

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Product Specification
Display:
TN/ANTI-UV LCD
Backlighting:
White LED
Power:
4-AAA batteries
Measure unit:
℉&FT or ℃&M
Sensor beam angle:
45 degrees
Depth range Max:
328feet/ 100meters
Depth range Min:
2feet/ 0.6meters
Operational temperature:
14 to 113 f(-10 to -45℃)
FAQ
It shows fish/ It’s not working in my pool
The fish finder will NOT function properly in a bath tub,
swimming pool, bucket, or any body of water that has
hard sides. It must be used in an open body of water to
function properly.
Is the display waterproof?
The transducer is waterproof, but the display is not. Do
not submerge or spray the fish finder screen with water.
How long is the battery duration(with 4 AAA batteries)?
It usually lasts about 4 hours with 4 x AAA batteries. It is
suggested to buy rechargeable batteries if you want the
fish finder to work for the whole day.
The depth reading is “---”
First check whether the sonar sensor is connected with
the display unit.

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Make sure that the water depth is between 2 and 328 ft
(0.6 to 100 m). Be aware that the depth is measured from
the sonar sensor, not the float. Make sure the water is
NOT overly muddy. Also make sure that the water is NOT
overly choppy. The sonar sensor must remain relatively
stable to achieve correct readings. When necessary,
lower the sonar sensor to be further from the surface of
the water, providing more stability in water.
There are fish under the sonar sensor, but the fish finder
shows nothing.
The fish finder will not detect any objects that are closer
than 2 ft from the sonar sensor. If you’re fishing in water
that is less than 3 feet deep, it is recommended to
discontinue use of the fish finder.
Depth reading is incorrect
Extremely heavy vegetation may confuse the sonar and
cause misreading of depth. If the water you are fishing is
under these conditions, discontinue use of the fish finder.
False fish indications
Tall weed may cause false fish indications. If weeds grow
taller than 50% of the total water depth, the sonar will
mistake it for fish. Trash & debris may also result in false
fish indications. Adjusting the sensitivity setting to the
lowest level may reduce these false readings, but if they
do not go away, it is suggested that you discontinue use
of the fish finder under these conditions.
Contact us:
Website: www.venterior.com
Email: [e-mail]